iOS 2.4.2 - Fixed Swipe Action Colours

android/app/build.gradle.kts

@@ -16,8 +16,8 @@ android {
         applicationId = "com.atridad.ascently"
         minSdk = 31
         targetSdk = 36
-        versionCode = 4
+        versionCode = 48
-        versionName = "2.3.0"
+        versionName = "2.4.0"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }

android/app/src/main/AndroidManifest.xml

@@ -27,6 +27,7 @@
 
     <!-- Permissions for notifications and foreground service -->
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+    <uses-permission android:name="android.permission.POST_PROMOTED_NOTIFICATIONS" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE_SPECIAL_USE" />
 

android/app/src/main/java/com/atridad/ascently/data/sync/AscentlySyncProvider.kt

@@ -0,0 +1,741 @@
+package com.atridad.ascently.data.sync
+
+import android.content.Context
+import android.content.SharedPreferences
+import android.net.ConnectivityManager
+import android.net.NetworkCapabilities
+import androidx.annotation.RequiresPermission
+import androidx.core.content.edit
+import com.atridad.ascently.data.format.BackupAttempt
+import com.atridad.ascently.data.format.BackupClimbSession
+import com.atridad.ascently.data.format.BackupGym
+import com.atridad.ascently.data.format.BackupProblem
+import com.atridad.ascently.data.format.ClimbDataBackup
+import com.atridad.ascently.data.repository.ClimbRepository
+import com.atridad.ascently.data.state.DataStateManager
+import com.atridad.ascently.utils.AppLogger
+import com.atridad.ascently.utils.DateFormatUtils
+import com.atridad.ascently.utils.ImageNamingUtils
+import com.atridad.ascently.utils.ImageUtils
+import java.io.IOException
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+import java.util.concurrent.TimeUnit
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.withContext
+import kotlinx.serialization.json.Json
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.RequestBody.Companion.toRequestBody
+
+class AscentlySyncProvider(
+    private val context: Context,
+    private val repository: ClimbRepository
+) : SyncProvider {
+
+    override val type: SyncProviderType = SyncProviderType.SERVER
+
+    private val dataStateManager = DataStateManager(context)
+
+    companion object {
+        private const val TAG = "AscentlySyncProvider"
+    }
+
+    private val sharedPreferences: SharedPreferences =
+        context.getSharedPreferences("sync_preferences", Context.MODE_PRIVATE)
+
+    private val httpClient =
+        OkHttpClient.Builder()
+            .connectTimeout(45, TimeUnit.SECONDS)
+            .readTimeout(90, TimeUnit.SECONDS)
+            .writeTimeout(90, TimeUnit.SECONDS)
+            .build()
+
+    private val json = Json {
+        prettyPrint = true
+        ignoreUnknownKeys = true
+        explicitNulls = false
+        coerceInputValues = true
+    }
+
+    private val _isConnected = MutableStateFlow(false)
+    override val isConnected: StateFlow<Boolean> = _isConnected.asStateFlow()
+
+    private val _isConfigured = MutableStateFlow(false)
+    override val isConfigured: StateFlow<Boolean> = _isConfigured.asStateFlow()
+
+    private var isOfflineMode = false
+
+    private object Keys {
+        const val SERVER_URL = "server_url"
+        const val AUTH_TOKEN = "auth_token"
+        const val IS_CONNECTED = "is_connected"
+        const val LAST_SYNC_TIME = "last_sync_time"
+        const val OFFLINE_MODE = "offline_mode"
+    }
+
+    init {
+        loadInitialState()
+        updateConfiguredState()
+    }
+
+    private fun loadInitialState() {
+        _isConnected.value = sharedPreferences.getBoolean(Keys.IS_CONNECTED, false)
+        isOfflineMode = sharedPreferences.getBoolean(Keys.OFFLINE_MODE, false)
+    }
+
+    private fun updateConfiguredState() {
+        _isConfigured.value = serverUrl.isNotBlank() && authToken.isNotBlank()
+    }
+
+    var serverUrl: String
+        get() = sharedPreferences.getString(Keys.SERVER_URL, "") ?: ""
+        set(value) {
+            sharedPreferences.edit { putString(Keys.SERVER_URL, value) }
+            updateConfiguredState()
+            _isConnected.value = false
+            sharedPreferences.edit { putBoolean(Keys.IS_CONNECTED, false) }
+        }
+
+    var authToken: String
+        get() = sharedPreferences.getString(Keys.AUTH_TOKEN, "") ?: ""
+        set(value) {
+            sharedPreferences.edit { putString(Keys.AUTH_TOKEN, value) }
+            updateConfiguredState()
+            _isConnected.value = false
+            sharedPreferences.edit { putBoolean(Keys.IS_CONNECTED, false) }
+        }
+
+    @RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
+    private fun isNetworkAvailable(): Boolean {
+        val connectivityManager =
+            context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+        val network = connectivityManager.activeNetwork ?: return false
+        val activeNetwork = connectivityManager.getNetworkCapabilities(network) ?: return false
+        return when {
+            activeNetwork.hasTransport(NetworkCapabilities.TRANSPORT_WIFI) -> true
+            activeNetwork.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) -> true
+            else -> false
+        }
+    }
+
+    @RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
+    override suspend fun sync() {
+        if (isOfflineMode) {
+            AppLogger.d(TAG) { "Sync skipped: Offline mode is enabled." }
+            return
+        }
+        if (!isNetworkAvailable()) {
+            AppLogger.d(TAG) { "Sync skipped: No internet connection." }
+            throw SyncException.NetworkError("No internet connection.")
+        }
+        if (!_isConfigured.value) {
+            throw SyncException.NotConfigured
+        }
+        if (!_isConnected.value) {
+            throw SyncException.NotConnected
+        }
+
+        val localBackup = createBackupFromRepository()
+        val serverBackup = downloadData()
+
+        val hasLocalData =
+            localBackup.gyms.isNotEmpty() ||
+                    localBackup.problems.isNotEmpty() ||
+                    localBackup.sessions.isNotEmpty() ||
+                    localBackup.attempts.isNotEmpty()
+
+        val hasServerData =
+            serverBackup.gyms.isNotEmpty() ||
+                    serverBackup.problems.isNotEmpty() ||
+                    serverBackup.sessions.isNotEmpty() ||
+                    serverBackup.attempts.isNotEmpty()
+
+        val lastSyncTimeStr = sharedPreferences.getString(Keys.LAST_SYNC_TIME, null)
+        if (hasLocalData && hasServerData && lastSyncTimeStr != null) {
+            AppLogger.d(TAG) { "Using delta sync for incremental updates" }
+            performDeltaSync(lastSyncTimeStr)
+        } else {
+            when {
+                !hasLocalData && hasServerData -> {
+                    AppLogger.d(TAG) { "No local data found, performing full restore from server" }
+                    val imagePathMapping = syncImagesFromServer(serverBackup)
+                    importBackupToRepository(serverBackup, imagePathMapping)
+                    AppLogger.d(TAG) { "Full restore completed" }
+                }
+
+                hasLocalData && !hasServerData -> {
+                    AppLogger.d(TAG) { "No server data found, uploading local data to server" }
+                    uploadData(localBackup)
+                    syncImagesForBackup(localBackup)
+                    AppLogger.d(TAG) { "Initial upload completed" }
+                }
+
+                hasLocalData && hasServerData -> {
+                    AppLogger.d(TAG) { "Both local and server data exist, merging (server wins)" }
+                    mergeDataSafely(serverBackup)
+                    AppLogger.d(TAG) { "Merge completed" }
+                }
+
+                else -> {
+                    AppLogger.d(TAG) { "No data to sync" }
+                }
+            }
+        }
+
+        val now = DateFormatUtils.nowISO8601()
+        sharedPreferences.edit { putString(Keys.LAST_SYNC_TIME, now) }
+    }
+
+    override fun disconnect() {
+        serverUrl = ""
+        authToken = ""
+        _isConnected.value = false
+        sharedPreferences.edit {
+            remove(Keys.LAST_SYNC_TIME)
+            putBoolean(Keys.IS_CONNECTED, false)
+        }
+        updateConfiguredState()
+    }
+
+    private suspend fun performDeltaSync(lastSyncTimeStr: String) {
+        AppLogger.d(TAG) { "Starting delta sync with lastSyncTime=$lastSyncTimeStr" }
+
+        val lastSyncDate = parseISO8601(lastSyncTimeStr) ?: Date(0)
+
+        val allGyms = repository.getAllGyms().first()
+        val modifiedGyms =
+            allGyms
+                .filter { gym -> parseISO8601(gym.updatedAt)?.after(lastSyncDate) == true }
+                .map { BackupGym.fromGym(it) }
+
+        val allProblems = repository.getAllProblems().first()
+        val modifiedProblems =
+            allProblems
+                .filter { problem ->
+                    parseISO8601(problem.updatedAt)?.after(lastSyncDate) == true
+                }
+                .map { problem ->
+                    val backupProblem = BackupProblem.fromProblem(problem)
+                    val normalizedImagePaths =
+                        problem.imagePaths.mapIndexed { index, _ ->
+                            ImageNamingUtils.generateImageFilename(problem.id, index)
+                        }
+                    if (normalizedImagePaths.isNotEmpty()) {
+                        backupProblem.copy(imagePaths = normalizedImagePaths)
+                    } else {
+                        backupProblem
+                    }
+                }
+
+        val allSessions = repository.getAllSessions().first()
+        val modifiedSessions =
+            allSessions
+                .filter { session ->
+                    parseISO8601(session.updatedAt)?.after(lastSyncDate) == true
+                }
+                .map { BackupClimbSession.fromClimbSession(it) }
+
+        val allAttempts = repository.getAllAttempts().first()
+        val modifiedAttempts =
+            allAttempts
+                .filter { attempt ->
+                    parseISO8601(attempt.createdAt)?.after(lastSyncDate) == true
+                }
+                .map { BackupAttempt.fromAttempt(it) }
+
+        val allDeletions = repository.getDeletedItems()
+        val modifiedDeletions =
+            allDeletions.filter { item ->
+                parseISO8601(item.deletedAt)?.after(lastSyncDate) == true
+            }
+
+        AppLogger.d(TAG) {
+            "Delta sync sending: gyms=${modifiedGyms.size}, problems=${modifiedProblems.size}, sessions=${modifiedSessions.size}, attempts=${modifiedAttempts.size}, deletions=${modifiedDeletions.size}"
+        }
+
+        val deltaRequest =
+            DeltaSyncRequest(
+                lastSyncTime = lastSyncTimeStr,
+                gyms = modifiedGyms,
+                problems = modifiedProblems,
+                sessions = modifiedSessions,
+                attempts = modifiedAttempts,
+                deletedItems = modifiedDeletions
+            )
+
+        val requestBody =
+            json.encodeToString(DeltaSyncRequest.serializer(), deltaRequest)
+                .toRequestBody("application/json".toMediaType())
+
+        val request =
+            Request.Builder()
+                .url("$serverUrl/sync/delta")
+                .header("Authorization", "Bearer $authToken")
+                .post(requestBody)
+                .build()
+
+        val deltaResponse =
+            withContext(Dispatchers.IO) {
+                try {
+                    httpClient.newCall(request).execute().use { response ->
+                        if (response.isSuccessful) {
+                            val body = response.body?.string()
+                            if (!body.isNullOrEmpty()) {
+                                json.decodeFromString(DeltaSyncResponse.serializer(), body)
+                            } else {
+                                throw SyncException.InvalidResponse("Empty response body")
+                            }
+                        } else {
+                            handleHttpError(response.code)
+                        }
+                    }
+                } catch (e: IOException) {
+                    throw SyncException.NetworkError(e.message ?: "Network error")
+                }
+            }
+
+        AppLogger.d(TAG) {
+            "Delta sync received: gyms=${deltaResponse.gyms.size}, problems=${deltaResponse.problems.size}, sessions=${deltaResponse.sessions.size}, attempts=${deltaResponse.attempts.size}, deletions=${deltaResponse.deletedItems.size}"
+        }
+
+        applyDeltaResponse(deltaResponse)
+        syncModifiedImages(modifiedProblems)
+    }
+
+    private fun parseISO8601(dateString: String): Date? {
+        return try {
+            val format = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss", Locale.US)
+            format.parse(dateString)
+        } catch (_: Exception) {
+            null
+        }
+    }
+
+    private suspend fun applyDeltaResponse(response: DeltaSyncResponse) {
+        // SyncService handles the "isSyncing" state to prevent recursive sync triggers
+        // when the repository is modified during a sync operation.
+
+        try {
+            // Merge and apply deletions first to prevent resurrection
+            val allDeletions = repository.getDeletedItems() + response.deletedItems
+            val uniqueDeletions = allDeletions.distinctBy { "${it.type}:${it.id}" }
+
+            AppLogger.d(TAG) { "Applying ${uniqueDeletions.size} deletion records before merging data" }
+            applyDeletions(uniqueDeletions)
+
+            // Build deleted item lookup set
+            val deletedItemSet = uniqueDeletions.map { "${it.type}:${it.id}" }.toSet()
+
+            // Download images for new/modified problems from server
+            val imagePathMapping = mutableMapOf<String, String>()
+            for (problem in response.problems) {
+                if (deletedItemSet.contains("problem:${problem.id}")) {
+                    continue
+                }
+                problem.imagePaths?.forEach { imagePath ->
+                    val serverFilename = imagePath.substringAfterLast('/')
+                    try {
+                        val localImagePath = downloadImage(serverFilename)
+                        if (localImagePath != null) {
+                            imagePathMapping[imagePath] = localImagePath
+                        }
+                    } catch (e: Exception) {
+                        AppLogger.w(TAG) { "Failed to download image $imagePath: ${e.message}" }
+                    }
+                }
+            }
+
+            // Merge gyms
+            val existingGyms = repository.getAllGyms().first()
+            for (backupGym in response.gyms) {
+                if (deletedItemSet.contains("gym:${backupGym.id}")) {
+                    continue
+                }
+                val existing = existingGyms.find { it.id == backupGym.id }
+                if (existing == null || backupGym.updatedAt >= existing.updatedAt) {
+                    val gym = backupGym.toGym()
+                    if (existing != null) {
+                        repository.updateGym(gym)
+                    } else {
+                        repository.insertGym(gym)
+                    }
+                }
+            }
+
+            // Merge problems
+            val existingProblems = repository.getAllProblems().first()
+            for (backupProblem in response.problems) {
+                if (deletedItemSet.contains("problem:${backupProblem.id}")) {
+                    continue
+                }
+                val updatedImagePaths =
+                    backupProblem.imagePaths?.map { oldPath ->
+                        imagePathMapping[oldPath] ?: oldPath
+                    }
+                val problemToMerge = backupProblem.copy(imagePaths = updatedImagePaths)
+                val problem = problemToMerge.toProblem()
+
+                val existing = existingProblems.find { it.id == backupProblem.id }
+                if (existing == null || backupProblem.updatedAt >= existing.updatedAt) {
+                    if (existing != null) {
+                        repository.updateProblem(problem)
+                    } else {
+                        repository.insertProblem(problem)
+                    }
+                }
+            }
+
+            // Merge sessions
+            val existingSessions = repository.getAllSessions().first()
+            for (backupSession in response.sessions) {
+                if (deletedItemSet.contains("session:${backupSession.id}")) {
+                    continue
+                }
+                val session = backupSession.toClimbSession()
+                val existing = existingSessions.find { it.id == backupSession.id }
+                if (existing == null || backupSession.updatedAt >= existing.updatedAt) {
+                    if (existing != null) {
+                        repository.updateSession(session)
+                    } else {
+                        repository.insertSession(session)
+                    }
+                }
+            }
+
+            // Merge attempts
+            val existingAttempts = repository.getAllAttempts().first()
+            for (backupAttempt in response.attempts) {
+                if (deletedItemSet.contains("attempt:${backupAttempt.id}")) {
+                    continue
+                }
+                val attempt = backupAttempt.toAttempt()
+                val existing = existingAttempts.find { it.id == backupAttempt.id }
+                if (existing == null || backupAttempt.createdAt >= existing.createdAt) {
+                    if (existing != null) {
+                        repository.updateAttempt(attempt)
+                    } else {
+                        repository.insertAttempt(attempt)
+                    }
+                }
+            }
+
+            // Apply deletions again for safety
+            applyDeletions(uniqueDeletions)
+
+            // Update deletion records
+            repository.clearDeletedItems()
+            uniqueDeletions.forEach { repository.trackDeletion(it.id, it.type) }
+        } catch (e: Exception) {
+            AppLogger.e(TAG, e) { "Error applying delta response" }
+            throw e
+        }
+    }
+
+    private suspend fun applyDeletions(
+        deletions: List<com.atridad.ascently.data.format.DeletedItem>
+    ) {
+        val existingGyms = repository.getAllGyms().first()
+        val existingProblems = repository.getAllProblems().first()
+        val existingSessions = repository.getAllSessions().first()
+        val existingAttempts = repository.getAllAttempts().first()
+
+        for (item in deletions) {
+            when (item.type) {
+                "gym" -> {
+                    existingGyms.find { it.id == item.id }?.let { repository.deleteGym(it) }
+                }
+
+                "problem" -> {
+                    existingProblems.find { it.id == item.id }?.let { repository.deleteProblem(it) }
+                }
+
+                "session" -> {
+                    existingSessions.find { it.id == item.id }?.let { repository.deleteSession(it) }
+                }
+
+                "attempt" -> {
+                    existingAttempts.find { it.id == item.id }?.let { repository.deleteAttempt(it) }
+                }
+            }
+        }
+    }
+
+    private suspend fun syncModifiedImages(modifiedProblems: List<BackupProblem>) {
+        if (modifiedProblems.isEmpty()) return
+
+        AppLogger.d(TAG) { "Syncing images for ${modifiedProblems.size} modified problems" }
+
+        for (backupProblem in modifiedProblems) {
+            backupProblem.imagePaths?.forEach { imagePath ->
+                val filename = imagePath.substringAfterLast('/')
+                uploadImage(imagePath, filename)
+            }
+        }
+    }
+
+    private suspend fun downloadData(): ClimbDataBackup {
+        val request =
+            Request.Builder()
+                .url("$serverUrl/sync")
+                .header("Authorization", "Bearer $authToken")
+                .get()
+                .build()
+
+        return withContext(Dispatchers.IO) {
+            try {
+                httpClient.newCall(request).execute().use { response ->
+                    if (response.isSuccessful) {
+                        val body = response.body?.string()
+                        if (!body.isNullOrEmpty()) {
+                            json.decodeFromString(body)
+                        } else {
+                            ClimbDataBackup(
+                                exportedAt = DateFormatUtils.nowISO8601(),
+                                gyms = emptyList(),
+                                problems = emptyList(),
+                                sessions = emptyList(),
+                                attempts = emptyList()
+                            )
+                        }
+                    } else {
+                        handleHttpError(response.code)
+                    }
+                }
+            } catch (e: IOException) {
+                throw SyncException.NetworkError(e.message ?: "Network error")
+            }
+        }
+    }
+
+    private suspend fun uploadData(backup: ClimbDataBackup) {
+        val requestBody =
+            json.encodeToString(backup).toRequestBody("application/json".toMediaType())
+
+        val request =
+            Request.Builder()
+                .url("$serverUrl/sync")
+                .header("Authorization", "Bearer $authToken")
+                .put(requestBody)
+                .build()
+
+        withContext(Dispatchers.IO) {
+            try {
+                httpClient.newCall(request).execute().use { response ->
+                    if (!response.isSuccessful) {
+                        handleHttpError(response.code)
+                    }
+                }
+            } catch (e: IOException) {
+                throw SyncException.NetworkError(e.message ?: "Network error")
+            }
+        }
+    }
+
+    private suspend fun syncImagesFromServer(backup: ClimbDataBackup): Map<String, String> {
+        val imagePathMapping = mutableMapOf<String, String>()
+        val totalImages = backup.problems.sumOf { it.imagePaths?.size ?: 0 }
+        AppLogger.d(TAG) { "Starting image download from server for $totalImages images" }
+
+        withContext(Dispatchers.IO) {
+            backup.problems.forEach { problem ->
+                problem.imagePaths?.forEach { imagePath ->
+                    val serverFilename = imagePath.substringAfterLast('/')
+                    try {
+                        val localImagePath = downloadImage(serverFilename)
+                        if (localImagePath != null) {
+                            imagePathMapping[imagePath] = localImagePath
+                        }
+                    } catch (_: SyncException.ImageNotFound) {
+                        AppLogger.w(TAG) { "Image not found on server: $imagePath" }
+                    } catch (e: CancellationException) {
+                        throw e
+                    } catch (e: Exception) {
+                        AppLogger.w(TAG) { "Failed to download image $imagePath: ${e.message}" }
+                    }
+                }
+            }
+        }
+        return imagePathMapping
+    }
+
+    private suspend fun downloadImage(serverFilename: String): String? {
+        val request =
+            Request.Builder()
+                .url("$serverUrl/images/download?filename=$serverFilename")
+                .header("Authorization", "Bearer $authToken")
+                .build()
+
+        return withContext(Dispatchers.IO) {
+            try {
+                httpClient.newCall(request).execute().use { response ->
+                    if (response.isSuccessful) {
+                        response.body?.bytes()?.let {
+                            ImageUtils.saveImageFromBytesWithFilename(context, it, serverFilename)
+                        }
+                    } else {
+                        if (response.code == 404) throw SyncException.ImageNotFound
+                        null
+                    }
+                }
+            } catch (e: IOException) {
+                AppLogger.e(TAG, e) { "Network error downloading image $serverFilename" }
+                null
+            }
+        }
+    }
+
+    private suspend fun syncImagesForBackup(backup: ClimbDataBackup) {
+        AppLogger.d(TAG) { "Starting image sync for backup with ${backup.problems.size} problems" }
+        withContext(Dispatchers.IO) {
+            backup.problems.forEach { problem ->
+                problem.imagePaths?.forEach { localPath ->
+                    val filename = localPath.substringAfterLast('/')
+                    uploadImage(localPath, filename)
+                }
+            }
+        }
+    }
+
+    private suspend fun uploadImage(localPath: String, filename: String) {
+        val file = ImageUtils.getImageFile(context, localPath)
+        if (!file.exists()) {
+            AppLogger.w(TAG) { "Local image file not found, cannot upload: $localPath" }
+            return
+        }
+
+        val requestBody = file.readBytes().toRequestBody("application/octet-stream".toMediaType())
+
+        val request =
+            Request.Builder()
+                .url("$serverUrl/images/upload?filename=$filename")
+                .header("Authorization", "Bearer $authToken")
+                .post(requestBody)
+                .build()
+
+        withContext(Dispatchers.IO) {
+            try {
+                httpClient.newCall(request).execute().use { response ->
+                    if (response.isSuccessful) {
+                        AppLogger.d(TAG) { "Successfully uploaded image: $filename" }
+                    } else {
+                        AppLogger.w(TAG) {
+                            "Failed to upload image $filename. Server responded with ${response.code}"
+                        }
+                    }
+                }
+            } catch (e: IOException) {
+                AppLogger.e(TAG, e) { "Network error uploading image $filename" }
+            }
+        }
+    }
+
+    private suspend fun createBackupFromRepository(): ClimbDataBackup {
+        return withContext(Dispatchers.Default) {
+            ClimbDataBackup(
+                exportedAt = dataStateManager.getLastModified(),
+                gyms = repository.getAllGyms().first().map { BackupGym.fromGym(it) },
+                problems =
+                    repository.getAllProblems().first().map { problem ->
+                        val backupProblem = BackupProblem.fromProblem(problem)
+                        val normalizedImagePaths =
+                            problem.imagePaths.mapIndexed { index, _ ->
+                                ImageNamingUtils.generateImageFilename(
+                                    problem.id,
+                                    index
+                                )
+                            }
+                        if (normalizedImagePaths.isNotEmpty()) {
+                            backupProblem.copy(imagePaths = normalizedImagePaths)
+                        } else {
+                            backupProblem
+                        }
+                    },
+                sessions =
+                    repository.getAllSessions().first().map {
+                        BackupClimbSession.fromClimbSession(it)
+                    },
+                attempts =
+                    repository.getAllAttempts().first().map {
+                        BackupAttempt.fromAttempt(it)
+                    },
+                deletedItems = repository.getDeletedItems()
+            )
+        }
+    }
+
+    private suspend fun importBackupToRepository(
+        backup: ClimbDataBackup,
+        imagePathMapping: Map<String, String>
+    ) {
+        val gyms = backup.gyms.map { it.toGym() }
+        val problems =
+            backup.problems.map { backupProblem ->
+                val imagePaths = backupProblem.imagePaths
+                val updatedImagePaths =
+                    imagePaths?.map { oldPath -> imagePathMapping[oldPath] ?: oldPath }
+                backupProblem.copy(imagePaths = updatedImagePaths).toProblem()
+            }
+        val sessions = backup.sessions.map { it.toClimbSession() }
+        val attempts = backup.attempts.map { it.toAttempt() }
+
+        repository.resetAllData()
+
+        gyms.forEach { repository.insertGymWithoutSync(it) }
+        problems.forEach { repository.insertProblemWithoutSync(it) }
+        sessions.forEach { repository.insertSessionWithoutSync(it) }
+        attempts.forEach { repository.insertAttemptWithoutSync(it) }
+
+        repository.clearDeletedItems()
+    }
+
+    private suspend fun mergeDataSafely(serverBackup: ClimbDataBackup) {
+        AppLogger.d(TAG) { "Server data will overwrite local data. Performing full restore." }
+        val imagePathMapping = syncImagesFromServer(serverBackup)
+        importBackupToRepository(serverBackup, imagePathMapping)
+    }
+
+    private fun handleHttpError(code: Int): Nothing {
+        when (code) {
+            401 -> throw SyncException.Unauthorized
+            in 500..599 -> throw SyncException.ServerError(code)
+            else -> throw SyncException.InvalidResponse("HTTP error code: $code")
+        }
+    }
+
+    override suspend fun testConnection() {
+        if (!_isConfigured.value) {
+            _isConnected.value = false
+            throw SyncException.NotConfigured
+        }
+
+        val request =
+            Request.Builder()
+                .url("$serverUrl/sync")
+                .header("Authorization", "Bearer $authToken")
+                .head()
+                .build()
+        try {
+            withContext(Dispatchers.IO) {
+                httpClient.newCall(request).execute().use { response ->
+                    _isConnected.value = response.isSuccessful || response.code == 405
+                }
+            }
+            if (!_isConnected.value) {
+                throw SyncException.NotConnected
+            }
+        } catch (e: Exception) {
+            _isConnected.value = false
+            throw SyncException.NetworkError(e.message ?: "Connection error")
+        } finally {
+            sharedPreferences.edit { putBoolean(Keys.IS_CONNECTED, _isConnected.value) }
+        }
+    }
+}

android/app/src/main/java/com/atridad/ascently/data/sync/SyncException.kt

@@ -0,0 +1,21 @@
+package com.atridad.ascently.data.sync
+
+import java.io.IOException
+import java.io.Serializable
+
+sealed class SyncException(message: String) : IOException(message), Serializable {
+    object NotConfigured :
+        SyncException("Sync is not configured. Please set server URL and auth token.")
+
+    object NotConnected : SyncException("Not connected to server. Please test connection first.")
+
+    object Unauthorized : SyncException("Unauthorized. Please check your auth token.")
+
+    object ImageNotFound : SyncException("Image not found on server")
+
+    data class ServerError(val code: Int) : SyncException("Server error: HTTP $code")
+    data class InvalidResponse(val details: String) :
+        SyncException("Invalid server response: $details")
+
+    data class NetworkError(val details: String) : SyncException("Network error: $details")
+}

android/app/src/main/java/com/atridad/ascently/data/sync/SyncProvider.kt

@@ -0,0 +1,18 @@
+package com.atridad.ascently.data.sync
+
+import kotlinx.coroutines.flow.StateFlow
+
+interface SyncProvider {
+    val type: SyncProviderType
+    val isConfigured: StateFlow<Boolean>
+    val isConnected: StateFlow<Boolean>
+    
+    suspend fun sync()
+    suspend fun testConnection()
+    fun disconnect()
+}
+
+enum class SyncProviderType {
+    NONE,
+    SERVER
+}

android/app/src/main/java/com/atridad/ascently/data/sync/SyncService.kt

@@ -2,27 +2,9 @@ package com.atridad.ascently.data.sync
 
 import android.content.Context
 import android.content.SharedPreferences
-import android.net.ConnectivityManager
-import android.net.NetworkCapabilities
-import androidx.annotation.RequiresPermission
 import androidx.core.content.edit
-import com.atridad.ascently.data.format.BackupAttempt
-import com.atridad.ascently.utils.AppLogger
-import com.atridad.ascently.data.format.BackupClimbSession
-import com.atridad.ascently.data.format.BackupGym
-import com.atridad.ascently.data.format.BackupProblem
-import com.atridad.ascently.data.format.ClimbDataBackup
 import com.atridad.ascently.data.repository.ClimbRepository
-import com.atridad.ascently.data.state.DataStateManager
+import com.atridad.ascently.utils.AppLogger
-import com.atridad.ascently.utils.DateFormatUtils
-import com.atridad.ascently.utils.ImageNamingUtils
-import com.atridad.ascently.utils.ImageUtils
-import java.io.IOException
-import java.io.Serializable
-import java.text.SimpleDateFormat
-import java.util.Date
-import java.util.Locale
-import java.util.concurrent.TimeUnit
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -31,43 +13,21 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
-import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
-import kotlinx.coroutines.withContext
-import kotlinx.serialization.json.Json
-import okhttp3.MediaType.Companion.toMediaType
-import okhttp3.OkHttpClient
-import okhttp3.Request
-import okhttp3.RequestBody.Companion.toRequestBody
 
 class SyncService(private val context: Context, private val repository: ClimbRepository) {
 
-    private val dataStateManager = DataStateManager(context)
-    private val syncMutex = Mutex()
     private val serviceScope = CoroutineScope(Dispatchers.IO + SupervisorJob())
+    private val syncMutex = Mutex()
 
     companion object {
         private const val TAG = "SyncService"
     }
 
-    private val sharedPreferences: SharedPreferences =
+    // Currently we only support one provider, but this allows for future expansion
-        context.getSharedPreferences("sync_preferences", Context.MODE_PRIVATE)
+    private val provider: SyncProvider = AscentlySyncProvider(context, repository)
-
-    private val httpClient =
-        OkHttpClient.Builder()
-            .connectTimeout(45, TimeUnit.SECONDS)
-            .readTimeout(90, TimeUnit.SECONDS)
-            .writeTimeout(90, TimeUnit.SECONDS)
-            .build()
-
-    private val json = Json {
-        prettyPrint = true
-        ignoreUnknownKeys = true
-        explicitNulls = false
-        coerceInputValues = true
-    }
 
     // State
     private val _isSyncing = MutableStateFlow(false)
@@ -79,11 +39,9 @@ class SyncService(private val context: Context, private val repository: ClimbRep
     private val _syncError = MutableStateFlow<String?>(null)
     val syncError: StateFlow<String?> = _syncError.asStateFlow()
 
-    private val _isConnected = MutableStateFlow(false)
+    // Delegate to provider
-    val isConnected: StateFlow<Boolean> = _isConnected.asStateFlow()
+    val isConnected: StateFlow<Boolean> = provider.isConnected
-
+    val isConfiguredFlow: StateFlow<Boolean> = provider.isConfigured
-    private val _isConfigured = MutableStateFlow(false)
-    val isConfiguredFlow: StateFlow<Boolean> = _isConfigured.asStateFlow()
 
     private val _isTesting = MutableStateFlow(false)
     val isTesting: StateFlow<Boolean> = _isTesting.asStateFlow()
@@ -91,56 +49,40 @@ class SyncService(private val context: Context, private val repository: ClimbRep
     private val _isAutoSyncEnabled = MutableStateFlow(true)
     val isAutoSyncEnabled: StateFlow<Boolean> = _isAutoSyncEnabled.asStateFlow()
 
-    private var isOfflineMode = false
-
     // Debounced sync properties
     private var syncJob: Job? = null
     private var pendingChanges = false
     private val syncDebounceDelay = 2000L // 2 seconds
 
-    // Configuration keys
+    private val sharedPreferences: SharedPreferences =
+        context.getSharedPreferences("sync_preferences", Context.MODE_PRIVATE)
+
     private object Keys {
-        const val SERVER_URL = "server_url"
-        const val AUTH_TOKEN = "auth_token"
-        const val IS_CONNECTED = "is_connected"
         const val LAST_SYNC_TIME = "last_sync_time"
         const val AUTO_SYNC_ENABLED = "auto_sync_enabled"
-        const val OFFLINE_MODE = "offline_mode"
     }
 
     init {
         loadInitialState()
-        updateConfiguredState()
         repository.setAutoSyncCallback { serviceScope.launch { triggerAutoSync() } }
     }
 
     private fun loadInitialState() {
         _lastSyncTime.value = sharedPreferences.getString(Keys.LAST_SYNC_TIME, null)
-        _isConnected.value = sharedPreferences.getBoolean(Keys.IS_CONNECTED, false)
         _isAutoSyncEnabled.value = sharedPreferences.getBoolean(Keys.AUTO_SYNC_ENABLED, true)
-        isOfflineMode = sharedPreferences.getBoolean(Keys.OFFLINE_MODE, false)
-    }
-
-    private fun updateConfiguredState() {
-        _isConfigured.value = serverUrl.isNotBlank() && authToken.isNotBlank()
     }
 
+    // Proxy properties for Ascently provider configuration
     var serverUrl: String
-        get() = sharedPreferences.getString(Keys.SERVER_URL, "") ?: ""
+        get() = (provider as? AscentlySyncProvider)?.serverUrl ?: ""
         set(value) {
-            sharedPreferences.edit { putString(Keys.SERVER_URL, value) }
+            (provider as? AscentlySyncProvider)?.serverUrl = value
-            updateConfiguredState()
-            _isConnected.value = false
-            sharedPreferences.edit { putBoolean(Keys.IS_CONNECTED, false) }
         }
 
     var authToken: String
-        get() = sharedPreferences.getString(Keys.AUTH_TOKEN, "") ?: ""
+        get() = (provider as? AscentlySyncProvider)?.authToken ?: ""
         set(value) {
-            sharedPreferences.edit { putString(Keys.AUTH_TOKEN, value) }
+            (provider as? AscentlySyncProvider)?.authToken = value
-            updateConfiguredState()
-            _isConnected.value = false
-            sharedPreferences.edit { putBoolean(Keys.IS_CONNECTED, false) }
         }
 
     fun setAutoSyncEnabled(enabled: Boolean) {
@@ -148,93 +90,21 @@ class SyncService(private val context: Context, private val repository: ClimbRep
         sharedPreferences.edit { putBoolean(Keys.AUTO_SYNC_ENABLED, enabled) }
     }
 
-    @RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
-    private fun isNetworkAvailable(): Boolean {
-        val connectivityManager =
-            context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
-        val network = connectivityManager.activeNetwork ?: return false
-        val activeNetwork = connectivityManager.getNetworkCapabilities(network) ?: return false
-        return when {
-            activeNetwork.hasTransport(NetworkCapabilities.TRANSPORT_WIFI) -> true
-            activeNetwork.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) -> true
-            else -> false
-        }
-    }
-
-    @RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
     suspend fun syncWithServer() {
-        if (isOfflineMode) {
+        if (!isConfiguredFlow.value) {
-            AppLogger.d(TAG) { "Sync skipped: Offline mode is enabled." }
-            return
-        }
-        if (!isNetworkAvailable()) {
-            _syncError.value = "No internet connection."
-            AppLogger.d(TAG) { "Sync skipped: No internet connection." }
-            return
-        }
-        if (!_isConfigured.value) {
             throw SyncException.NotConfigured
         }
-        if (!_isConnected.value) {
-            throw SyncException.NotConnected
-        }
 
         syncMutex.withLock {
             _isSyncing.value = true
             _syncError.value = null
 
             try {
-                val localBackup = createBackupFromRepository()
+                provider.sync()
-                val serverBackup = downloadData()
                 
-                val hasLocalData =
+                // Update last sync time from shared prefs (provider updates it)
-                    localBackup.gyms.isNotEmpty() ||
+                _lastSyncTime.value = sharedPreferences.getString(Keys.LAST_SYNC_TIME, null)
-                            localBackup.problems.isNotEmpty() ||
-                            localBackup.sessions.isNotEmpty() ||
-                            localBackup.attempts.isNotEmpty()
                 
-                val hasServerData =
-                    serverBackup.gyms.isNotEmpty() ||
-                            serverBackup.problems.isNotEmpty() ||
-                            serverBackup.sessions.isNotEmpty() ||
-                            serverBackup.attempts.isNotEmpty()
-
-                // If both client and server have been synced before, use delta sync
-                val lastSyncTimeStr = sharedPreferences.getString(Keys.LAST_SYNC_TIME, null)
-                if (hasLocalData && hasServerData && lastSyncTimeStr != null) {
-                    AppLogger.d(TAG) { "Using delta sync for incremental updates" }
-                    performDeltaSync(lastSyncTimeStr)
-                } else {
-                    when {
-                        !hasLocalData && hasServerData -> {
-                            AppLogger.d(TAG) { "No local data found, performing full restore from server" }
-                            val imagePathMapping = syncImagesFromServer(serverBackup)
-                            importBackupToRepository(serverBackup, imagePathMapping)
-                            AppLogger.d(TAG) { "Full restore completed" }
-                        }
-
-                        hasLocalData && !hasServerData -> {
-                            AppLogger.d(TAG) { "No server data found, uploading local data to server" }
-                            uploadData(localBackup)
-                            syncImagesForBackup(localBackup)
-                            AppLogger.d(TAG) { "Initial upload completed" }
-                        }
-
-                        hasLocalData && hasServerData -> {
-                            AppLogger.d(TAG) { "Both local and server data exist, merging (server wins)" }
-                            mergeDataSafely(serverBackup)
-                            AppLogger.d(TAG) { "Merge completed" }
-                        }
-
-                        else -> {
-                            AppLogger.d(TAG) { "No data to sync" }
-                        }
-                    }
-                }
-
-                val now = DateFormatUtils.nowISO8601()
-                _lastSyncTime.value = now
-                sharedPreferences.edit { putString(Keys.LAST_SYNC_TIME, now) }
             } catch (e: Exception) {
                 _syncError.value = e.message
                 throw e
@@ -244,550 +114,21 @@ class SyncService(private val context: Context, private val repository: ClimbRep
         }
     }
 
-    private suspend fun performDeltaSync(lastSyncTimeStr: String) {
-        AppLogger.d(TAG) { "Starting delta sync with lastSyncTime=$lastSyncTimeStr" }
-
-        // Parse last sync time to filter modified items
-        val lastSyncDate = parseISO8601(lastSyncTimeStr) ?: Date(0)
-
-        // Collect items modified since last sync
-        val allGyms = repository.getAllGyms().first()
-        val modifiedGyms =
-            allGyms
-                .filter { gym -> parseISO8601(gym.updatedAt)?.after(lastSyncDate) == true }
-                .map { BackupGym.fromGym(it) }
-
-        val allProblems = repository.getAllProblems().first()
-        val modifiedProblems =
-            allProblems
-                .filter { problem ->
-                    parseISO8601(problem.updatedAt)?.after(lastSyncDate) == true
-                }
-                .map { problem ->
-                    val backupProblem = BackupProblem.fromProblem(problem)
-                    val normalizedImagePaths =
-                        problem.imagePaths.mapIndexed { index, _ ->
-                            ImageNamingUtils.generateImageFilename(problem.id, index)
-                        }
-                    if (normalizedImagePaths.isNotEmpty()) {
-                        backupProblem.copy(imagePaths = normalizedImagePaths)
-                    } else {
-                        backupProblem
-                    }
-                }
-
-        val allSessions = repository.getAllSessions().first()
-        val modifiedSessions =
-            allSessions
-                .filter { session ->
-                    parseISO8601(session.updatedAt)?.after(lastSyncDate) == true
-                }
-                .map { BackupClimbSession.fromClimbSession(it) }
-
-        val allAttempts = repository.getAllAttempts().first()
-        val modifiedAttempts =
-            allAttempts
-                .filter { attempt ->
-                    parseISO8601(attempt.createdAt)?.after(lastSyncDate) == true
-                }
-                .map { BackupAttempt.fromAttempt(it) }
-
-        val allDeletions = repository.getDeletedItems()
-        val modifiedDeletions =
-            allDeletions.filter { item ->
-                parseISO8601(item.deletedAt)?.after(lastSyncDate) == true
-            }
-
-        AppLogger.d(TAG) {
-            "Delta sync sending: gyms=${modifiedGyms.size}, problems=${modifiedProblems.size}, sessions=${modifiedSessions.size}, attempts=${modifiedAttempts.size}, deletions=${modifiedDeletions.size}"
-        }
-
-        // Create delta request
-        val deltaRequest =
-            DeltaSyncRequest(
-                lastSyncTime = lastSyncTimeStr,
-                gyms = modifiedGyms,
-                problems = modifiedProblems,
-                sessions = modifiedSessions,
-                attempts = modifiedAttempts,
-                deletedItems = modifiedDeletions
-            )
-
-        val requestBody =
-            json.encodeToString(DeltaSyncRequest.serializer(), deltaRequest)
-                .toRequestBody("application/json".toMediaType())
-
-        val request =
-            Request.Builder()
-                .url("$serverUrl/sync/delta")
-                .header("Authorization", "Bearer $authToken")
-                .post(requestBody)
-                .build()
-
-        val deltaResponse =
-            withContext(Dispatchers.IO) {
-                try {
-                    httpClient.newCall(request).execute().use { response ->
-                        if (response.isSuccessful) {
-                            val body = response.body?.string()
-                            if (!body.isNullOrEmpty()) {
-                                json.decodeFromString(DeltaSyncResponse.serializer(), body)
-                            } else {
-                                throw SyncException.InvalidResponse("Empty response body")
-                            }
-                        } else {
-                            handleHttpError(response.code)
-                        }
-                    }
-                } catch (e: IOException) {
-                    throw SyncException.NetworkError(e.message ?: "Network error")
-                }
-            }
-
-        AppLogger.d(TAG) {
-            "Delta sync received: gyms=${deltaResponse.gyms.size}, problems=${deltaResponse.problems.size}, sessions=${deltaResponse.sessions.size}, attempts=${deltaResponse.attempts.size}, deletions=${deltaResponse.deletedItems.size}"
-        }
-
-        // Apply server changes to local data
-        applyDeltaResponse(deltaResponse)
-
-        // Sync only modified problem images
-        syncModifiedImages(modifiedProblems)
-    }
-
-    private fun parseISO8601(dateString: String): Date? {
-        return try {
-            val format = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss", Locale.US)
-            format.parse(dateString)
-        } catch (e: Exception) {
-            null
-        }
-    }
-
-    private suspend fun applyDeltaResponse(response: DeltaSyncResponse) {
-        // Temporarily disable auto-sync to prevent recursive sync triggers
-        repository.setAutoSyncCallback(null)
-
-        try {
-            // Merge and apply deletions first to prevent resurrection
-            val allDeletions = repository.getDeletedItems() + response.deletedItems
-            val uniqueDeletions = allDeletions.distinctBy { "${it.type}:${it.id}" }
-
-            AppLogger.d(TAG) { "Applying ${uniqueDeletions.size} deletion records before merging data" }
-            applyDeletions(uniqueDeletions)
-
-            // Build deleted item lookup set
-            val deletedItemSet = uniqueDeletions.map { "${it.type}:${it.id}" }.toSet()
-
-            // Download images for new/modified problems from server
-            val imagePathMapping = mutableMapOf<String, String>()
-            for (problem in response.problems) {
-                if (deletedItemSet.contains("problem:${problem.id}")) {
-                    continue
-                }
-                problem.imagePaths?.forEach { imagePath ->
-                    val serverFilename = imagePath.substringAfterLast('/')
-                    try {
-                        val localImagePath = downloadImage(serverFilename)
-                        if (localImagePath != null) {
-                            imagePathMapping[imagePath] = localImagePath
-                        }
-                    } catch (e: Exception) {
-                        AppLogger.w(TAG) { "Failed to download image $imagePath: ${e.message}" }
-                    }
-                }
-            }
-
-            // Merge gyms
-            val existingGyms = repository.getAllGyms().first()
-            for (backupGym in response.gyms) {
-                if (deletedItemSet.contains("gym:${backupGym.id}")) {
-                    continue
-                }
-                val existing = existingGyms.find { it.id == backupGym.id }
-                if (existing == null || backupGym.updatedAt >= existing.updatedAt) {
-                    val gym = backupGym.toGym()
-                    if (existing != null) {
-                        repository.updateGym(gym)
-                    } else {
-                        repository.insertGym(gym)
-                    }
-                }
-            }
-
-            // Merge problems
-            val existingProblems = repository.getAllProblems().first()
-            for (backupProblem in response.problems) {
-                if (deletedItemSet.contains("problem:${backupProblem.id}")) {
-                    continue
-                }
-                val updatedImagePaths =
-                    backupProblem.imagePaths?.map { oldPath ->
-                        imagePathMapping[oldPath] ?: oldPath
-                    }
-                val problemToMerge = backupProblem.copy(imagePaths = updatedImagePaths)
-                val problem = problemToMerge.toProblem()
-
-                val existing = existingProblems.find { it.id == backupProblem.id }
-                if (existing == null || backupProblem.updatedAt >= existing.updatedAt) {
-                    if (existing != null) {
-                        repository.updateProblem(problem)
-                    } else {
-                        repository.insertProblem(problem)
-                    }
-                }
-            }
-
-            // Merge sessions
-            val existingSessions = repository.getAllSessions().first()
-            for (backupSession in response.sessions) {
-                if (deletedItemSet.contains("session:${backupSession.id}")) {
-                    continue
-                }
-                val session = backupSession.toClimbSession()
-                val existing = existingSessions.find { it.id == backupSession.id }
-                if (existing == null || backupSession.updatedAt >= existing.updatedAt) {
-                    if (existing != null) {
-                        repository.updateSession(session)
-                    } else {
-                        repository.insertSession(session)
-                    }
-                }
-            }
-
-            // Merge attempts
-            val existingAttempts = repository.getAllAttempts().first()
-            for (backupAttempt in response.attempts) {
-                if (deletedItemSet.contains("attempt:${backupAttempt.id}")) {
-                    continue
-                }
-                val attempt = backupAttempt.toAttempt()
-                val existing = existingAttempts.find { it.id == backupAttempt.id }
-                if (existing == null || backupAttempt.createdAt >= existing.createdAt) {
-                    if (existing != null) {
-                        repository.updateAttempt(attempt)
-                    } else {
-                        repository.insertAttempt(attempt)
-                    }
-                }
-            }
-
-            // Apply deletions again for safety
-            applyDeletions(uniqueDeletions)
-
-            // Update deletion records
-            repository.clearDeletedItems()
-            uniqueDeletions.forEach { repository.trackDeletion(it.id, it.type) }
-        } finally {
-            // Re-enable auto-sync
-            repository.setAutoSyncCallback { serviceScope.launch { triggerAutoSync() } }
-        }
-    }
-
-    private suspend fun applyDeletions(
-        deletions: List<com.atridad.ascently.data.format.DeletedItem>
-    ) {
-        val existingGyms = repository.getAllGyms().first()
-        val existingProblems = repository.getAllProblems().first()
-        val existingSessions = repository.getAllSessions().first()
-        val existingAttempts = repository.getAllAttempts().first()
-
-        for (item in deletions) {
-            when (item.type) {
-                "gym" -> {
-                    existingGyms.find { it.id == item.id }?.let { repository.deleteGym(it) }
-                }
-
-                "problem" -> {
-                    existingProblems.find { it.id == item.id }?.let { repository.deleteProblem(it) }
-                }
-
-                "session" -> {
-                    existingSessions.find { it.id == item.id }?.let { repository.deleteSession(it) }
-                }
-
-                "attempt" -> {
-                    existingAttempts.find { it.id == item.id }?.let { repository.deleteAttempt(it) }
-                }
-            }
-        }
-    }
-
-    private suspend fun syncModifiedImages(modifiedProblems: List<BackupProblem>) {
-        if (modifiedProblems.isEmpty()) return
-
-        AppLogger.d(TAG) { "Syncing images for ${modifiedProblems.size} modified problems" }
-
-        for (backupProblem in modifiedProblems) {
-            backupProblem.imagePaths?.forEach { imagePath ->
-                val filename = imagePath.substringAfterLast('/')
-                uploadImage(imagePath, filename)
-            }
-        }
-    }
-
-    private suspend fun downloadData(): ClimbDataBackup {
-        val request =
-            Request.Builder()
-                .url("$serverUrl/sync")
-                .header("Authorization", "Bearer $authToken")
-                .get()
-                .build()
-
-        return withContext(Dispatchers.IO) {
-            try {
-                httpClient.newCall(request).execute().use { response ->
-                    if (response.isSuccessful) {
-                        val body = response.body?.string()
-                        if (!body.isNullOrEmpty()) {
-                            json.decodeFromString(body)
-                        } else {
-                            ClimbDataBackup(
-                                exportedAt = DateFormatUtils.nowISO8601(),
-                                gyms = emptyList(),
-                                problems = emptyList(),
-                                sessions = emptyList(),
-                                attempts = emptyList()
-                            )
-                        }
-                    } else {
-                        handleHttpError(response.code)
-                    }
-                }
-            } catch (e: IOException) {
-                throw SyncException.NetworkError(e.message ?: "Network error")
-            }
-        }
-    }
-
-    private suspend fun uploadData(backup: ClimbDataBackup) {
-        val requestBody =
-            json.encodeToString(backup).toRequestBody("application/json".toMediaType())
-
-        val request =
-            Request.Builder()
-                .url("$serverUrl/sync")
-                .header("Authorization", "Bearer $authToken")
-                .put(requestBody)
-                .build()
-
-        withContext(Dispatchers.IO) {
-            try {
-                httpClient.newCall(request).execute().use { response ->
-                    if (!response.isSuccessful) {
-                        handleHttpError(response.code)
-                    }
-                }
-            } catch (e: IOException) {
-                throw SyncException.NetworkError(e.message ?: "Network error")
-            }
-        }
-    }
-
-    private suspend fun syncImagesFromServer(backup: ClimbDataBackup): Map<String, String> {
-        val imagePathMapping = mutableMapOf<String, String>()
-        val totalImages = backup.problems.sumOf { it.imagePaths?.size ?: 0 }
-        AppLogger.d(TAG) { "Starting image download from server for $totalImages images" }
-
-        withContext(Dispatchers.IO) {
-            backup.problems.forEach { problem ->
-                problem.imagePaths?.forEach { imagePath ->
-                    val serverFilename = imagePath.substringAfterLast('/')
-                    try {
-                        val localImagePath = downloadImage(serverFilename)
-                        if (localImagePath != null) {
-                            imagePathMapping[imagePath] = localImagePath
-                        }
-                    } catch (_: SyncException.ImageNotFound) {
-                        AppLogger.w(TAG) { "Image not found on server: $imagePath" }
-                    } catch (e: Exception) {
-                        AppLogger.w(TAG) { "Failed to download image $imagePath: ${e.message}" }
-                    }
-                }
-            }
-        }
-        return imagePathMapping
-    }
-
-    private suspend fun downloadImage(serverFilename: String): String? {
-        val request =
-            Request.Builder()
-                .url("$serverUrl/images/download?filename=$serverFilename")
-                .header("Authorization", "Bearer $authToken")
-                .build()
-
-        return withContext(Dispatchers.IO) {
-            try {
-                httpClient.newCall(request).execute().use { response ->
-                    if (response.isSuccessful) {
-                        response.body?.bytes()?.let {
-                            ImageUtils.saveImageFromBytesWithFilename(context, it, serverFilename)
-                        }
-                    } else {
-                        if (response.code == 404) throw SyncException.ImageNotFound
-                        null
-                    }
-                }
-            } catch (e: IOException) {
-                AppLogger.e(TAG, e) { "Network error downloading image $serverFilename" }
-                null
-            }
-        }
-    }
-
-    private suspend fun syncImagesForBackup(backup: ClimbDataBackup) {
-        AppLogger.d(TAG) { "Starting image sync for backup with ${backup.problems.size} problems" }
-        withContext(Dispatchers.IO) {
-            backup.problems.forEach { problem ->
-                problem.imagePaths?.forEach { localPath ->
-                    val filename = localPath.substringAfterLast('/')
-                    uploadImage(localPath, filename)
-                }
-            }
-        }
-    }
-
-    private suspend fun uploadImage(localPath: String, filename: String) {
-        val file = ImageUtils.getImageFile(context, localPath)
-        if (!file.exists()) {
-            AppLogger.w(TAG) { "Local image file not found, cannot upload: $localPath" }
-            return
-        }
-
-        val requestBody = file.readBytes().toRequestBody("application/octet-stream".toMediaType())
-
-        val request =
-            Request.Builder()
-                .url("$serverUrl/images/upload?filename=$filename")
-                .header("Authorization", "Bearer $authToken")
-                .post(requestBody)
-                .build()
-
-        withContext(Dispatchers.IO) {
-            try {
-                httpClient.newCall(request).execute().use { response ->
-                    if (response.isSuccessful) {
-                        AppLogger.d(TAG) { "Successfully uploaded image: $filename" }
-                    } else {
-                        AppLogger.w(TAG) {
-                            "Failed to upload image $filename. Server responded with ${response.code}"
-                        }
-                    }
-                }
-            } catch (e: IOException) {
-                AppLogger.e(TAG, e) { "Network error uploading image $filename" }
-            }
-        }
-    }
-
-    private suspend fun createBackupFromRepository(): ClimbDataBackup {
-        return withContext(Dispatchers.Default) {
-            ClimbDataBackup(
-                exportedAt = dataStateManager.getLastModified(),
-                gyms = repository.getAllGyms().first().map { BackupGym.fromGym(it) },
-                problems =
-                    repository.getAllProblems().first().map { problem ->
-                        val backupProblem = BackupProblem.fromProblem(problem)
-                        val normalizedImagePaths =
-                            problem.imagePaths.mapIndexed { index, _ ->
-                                ImageNamingUtils.generateImageFilename(
-                                    problem.id,
-                                    index
-                                )
-                            }
-                        if (normalizedImagePaths.isNotEmpty()) {
-                            backupProblem.copy(imagePaths = normalizedImagePaths)
-                        } else {
-                            backupProblem
-                        }
-                    },
-                sessions =
-                    repository.getAllSessions().first().map {
-                        BackupClimbSession.fromClimbSession(it)
-                    },
-                attempts =
-                    repository.getAllAttempts().first().map {
-                        BackupAttempt.fromAttempt(it)
-                    },
-                deletedItems = repository.getDeletedItems()
-            )
-        }
-    }
-
-    private suspend fun importBackupToRepository(
-        backup: ClimbDataBackup,
-        imagePathMapping: Map<String, String>
-    ) {
-        val gyms = backup.gyms.map { it.toGym() }
-        val problems =
-            backup.problems.map { backupProblem ->
-                val imagePaths = backupProblem.imagePaths
-                val updatedImagePaths =
-                    imagePaths?.map { oldPath -> imagePathMapping[oldPath] ?: oldPath }
-                backupProblem.copy(imagePaths = updatedImagePaths).toProblem()
-            }
-        val sessions = backup.sessions.map { it.toClimbSession() }
-        val attempts = backup.attempts.map { it.toAttempt() }
-
-        repository.resetAllData()
-
-        gyms.forEach { repository.insertGymWithoutSync(it) }
-        problems.forEach { repository.insertProblemWithoutSync(it) }
-        sessions.forEach { repository.insertSessionWithoutSync(it) }
-        attempts.forEach { repository.insertAttemptWithoutSync(it) }
-
-        repository.clearDeletedItems()
-    }
-
-    private suspend fun mergeDataSafely(serverBackup: ClimbDataBackup) {
-        AppLogger.d(TAG) { "Server data will overwrite local data. Performing full restore." }
-        val imagePathMapping = syncImagesFromServer(serverBackup)
-        importBackupToRepository(serverBackup, imagePathMapping)
-    }
-
-    private fun handleHttpError(code: Int): Nothing {
-        when (code) {
-            401 -> throw SyncException.Unauthorized
-            in 500..599 -> throw SyncException.ServerError(code)
-            else -> throw SyncException.InvalidResponse("HTTP error code: $code")
-        }
-    }
-
     suspend fun testConnection() {
-        if (!_isConfigured.value) {
-            _isConnected.value = false
-            _syncError.value = "Server URL or Auth Token is not set."
-            return
-        }
         _isTesting.value = true
         _syncError.value = null
-
-        val request =
-            Request.Builder()
-                .url("$serverUrl/sync")
-                .header("Authorization", "Bearer $authToken")
-                .head()
-                .build()
         try {
-            withContext(Dispatchers.IO) {
+            provider.testConnection()
-                httpClient.newCall(request).execute().use { response ->
-                    _isConnected.value = response.isSuccessful || response.code == 405
-                }
-            }
-            if (!_isConnected.value) {
-                _syncError.value = "Connection failed. Check URL and token."
-            }
         } catch (e: Exception) {
-            _isConnected.value = false
             _syncError.value = "Connection error: ${e.message}"
+            throw e
         } finally {
-            sharedPreferences.edit { putBoolean(Keys.IS_CONNECTED, _isConnected.value) }
             _isTesting.value = false
         }
     }
 
     fun triggerAutoSync() {
-        if (!_isConfigured.value || !_isConnected.value || !_isAutoSyncEnabled.value) {
+        if (!isConfiguredFlow.value || !isConnected.value || !_isAutoSyncEnabled.value) {
             return
         }
         if (_isSyncing.value) {
@@ -812,30 +153,9 @@ class SyncService(private val context: Context, private val repository: ClimbRep
 
     fun clearConfiguration() {
         syncJob?.cancel()
-        serverUrl = ""
+        provider.disconnect()
-        authToken = ""
         setAutoSyncEnabled(true)
         _lastSyncTime.value = null
-        _isConnected.value = false
         _syncError.value = null
-        sharedPreferences.edit { clear() }
-        updateConfiguredState()
     }
 }
-
-sealed class SyncException(message: String) : IOException(message), Serializable {
-    object NotConfigured :
-        SyncException("Sync is not configured. Please set server URL and auth token.")
-
-    object NotConnected : SyncException("Not connected to server. Please test connection first.")
-
-    object Unauthorized : SyncException("Unauthorized. Please check your auth token.")
-
-    object ImageNotFound : SyncException("Image not found on server")
-
-    data class ServerError(val code: Int) : SyncException("Server error: HTTP $code")
-    data class InvalidResponse(val details: String) :
-        SyncException("Invalid server response: $details")
-
-    data class NetworkError(val details: String) : SyncException("Network error: $details")
-}

android/app/src/main/java/com/atridad/ascently/service/SessionTrackingService.kt

@@ -6,6 +6,8 @@ import android.app.PendingIntent
 import android.app.Service
 import android.content.Context
 import android.content.Intent
+import android.os.Build
+import android.os.Bundle
 import android.os.IBinder
 import androidx.core.app.NotificationCompat
 import com.atridad.ascently.MainActivity
@@ -15,6 +17,7 @@ import com.atridad.ascently.data.repository.ClimbRepository
 import com.atridad.ascently.utils.AppLogger
 import com.atridad.ascently.widget.ClimbStatsWidgetProvider
 import java.time.LocalDateTime
+import java.time.ZoneId
 import java.time.temporal.ChronoUnit
 import kotlinx.coroutines.*
 import kotlinx.coroutines.flow.firstOrNull
@@ -209,33 +212,8 @@ class SessionTrackingService : Service() {
                 repository.getAttemptsBySession(sessionId).firstOrNull() ?: emptyList()
             }
 
-            val duration =
+            val notificationBuilder =
-                session.startTime?.let { startTime ->
-                    try {
-                        val start = LocalDateTime.parse(startTime)
-                        val now = LocalDateTime.now()
-                        val totalSeconds = ChronoUnit.SECONDS.between(start, now)
-                        val hours = totalSeconds / 3600
-                        val minutes = (totalSeconds % 3600) / 60
-                        val seconds = totalSeconds % 60
-
-                        when {
-                            hours > 0 -> "${hours}h ${minutes}m ${seconds}s"
-                            minutes > 0 -> "${minutes}m ${seconds}s"
-                            else -> "${totalSeconds}s"
-                        }
-                    } catch (_: Exception) {
-                        "Active"
-                    }
-                }
-                    ?: "Active"
-
-            val notification =
                 NotificationCompat.Builder(this, CHANNEL_ID)
-                    .setContentTitle("Climbing Session Active")
-                    .setContentText(
-                        "${gym?.name ?: "Gym"} • $duration • ${attempts.size} attempts"
-                    )
                     .setSmallIcon(R.drawable.ic_mountains)
                     .setOngoing(true)
                     .setAutoCancel(false)
@@ -253,7 +231,64 @@ class SessionTrackingService : Service() {
                         "End Session",
                         createStopPendingIntent(sessionId)
                     )
-                    .build()
+
+            // Use Live Update
+            if (Build.VERSION.SDK_INT >= 36) {
+                val startTimeMillis =
+                    session.startTime?.let { startTime ->
+                        try {
+                            val start = LocalDateTime.parse(startTime)
+                            val zoneId = ZoneId.systemDefault()
+                            start.atZone(zoneId).toInstant().toEpochMilli()
+                        } catch (_: Exception) {
+                            System.currentTimeMillis()
+                        }
+                    }
+                        ?: System.currentTimeMillis()
+
+                notificationBuilder
+                    .setContentTitle("Climbing Session Active")
+                    .setContentText(
+                        "${gym?.name ?: "Gym"} • ${attempts.size} attempts"
+                    )
+                    .setWhen(startTimeMillis)
+                    .setUsesChronometer(true)
+                    .setShowWhen(true)
+
+                val extras = Bundle()
+                extras.putBoolean("android.extra.REQUEST_PROMOTED_ONGOING", true)
+                notificationBuilder.setExtras(extras)
+            } else {
+                // Fallback for older versions
+                val duration =
+                    session.startTime?.let { startTime ->
+                        try {
+                            val start = LocalDateTime.parse(startTime)
+                            val now = LocalDateTime.now()
+                            val totalSeconds = ChronoUnit.SECONDS.between(start, now)
+                            val hours = totalSeconds / 3600
+                            val minutes = (totalSeconds % 3600) / 60
+                            val seconds = totalSeconds % 60
+
+                            when {
+                                hours > 0 -> "${hours}h ${minutes}m ${seconds}s"
+                                minutes > 0 -> "${minutes}m ${seconds}s"
+                                else -> "${totalSeconds}s"
+                            }
+                        } catch (_: Exception) {
+                            "Active"
+                        }
+                    }
+                        ?: "Active"
+
+                notificationBuilder
+                    .setContentTitle("Climbing Session Active")
+                    .setContentText(
+                        "${gym?.name ?: "Gym"} • $duration • ${attempts.size} attempts"
+                    )
+            }
+
+            val notification = notificationBuilder.build()
 
             startForeground(NOTIFICATION_ID, notification)
 

android/app/src/main/java/com/atridad/ascently/ui/screens/SessionsScreen.kt

@@ -5,8 +5,6 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.grid.GridCells
-import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
 import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
@@ -38,6 +36,7 @@ import java.time.YearMonth
 import java.time.format.DateTimeFormatter
 import java.time.format.TextStyle
 import java.util.Locale
+import androidx.core.content.edit
 
 enum class ViewMode {
     LIST,
@@ -60,7 +59,7 @@ fun SessionsScreen(viewModel: ClimbViewModel, onNavigateToSessionDetail: (String
         mutableStateOf(if (savedViewMode == "CALENDAR") ViewMode.CALENDAR else ViewMode.LIST)
     }
     var selectedMonth by remember { mutableStateOf(YearMonth.now()) }
-    var selectedDate by remember { mutableStateOf<LocalDate?>(null) }
+    var selectedDate by remember { mutableStateOf<LocalDate?>(LocalDate.now()) }
 
     val completedSessions = sessions.filter { it.status == SessionStatus.COMPLETED }
     val activeSessionGym = activeSession?.let { session -> gyms.find { it.id == session.gymId } }
@@ -89,7 +88,7 @@ fun SessionsScreen(viewModel: ClimbViewModel, onNavigateToSessionDetail: (String
                         viewMode =
                                 if (viewMode == ViewMode.LIST) ViewMode.CALENDAR else ViewMode.LIST
                         selectedDate = null
-                        sharedPreferences.edit().putString("view_mode", viewMode.name).apply()
+                        sharedPreferences.edit { putString("view_mode", viewMode.name) }
                     }
             ) {
                 Icon(
@@ -147,16 +146,11 @@ fun SessionsScreen(viewModel: ClimbViewModel, onNavigateToSessionDetail: (String
                     CalendarView(
                             sessions = completedSessions,
                             gyms = gyms,
-                            activeSession = activeSession,
+                        selectedMonth = selectedMonth,
-                            activeSessionGym = activeSessionGym,
-                            selectedMonth = selectedMonth,
                             onMonthChange = { selectedMonth = it },
                             selectedDate = selectedDate,
                             onDateSelected = { selectedDate = it },
-                            onNavigateToSessionDetail = onNavigateToSessionDetail,
+                            onNavigateToSessionDetail = onNavigateToSessionDetail
-                            onEndSession = {
-                                activeSession?.let { viewModel.endSession(context, it.id) }
-                            }
                     )
                 }
             }
@@ -315,14 +309,11 @@ fun EmptyStateMessage(
 fun CalendarView(
         sessions: List<ClimbSession>,
         gyms: List<com.atridad.ascently.data.model.Gym>,
-        activeSession: ClimbSession?,
-        activeSessionGym: com.atridad.ascently.data.model.Gym?,
         selectedMonth: YearMonth,
         onMonthChange: (YearMonth) -> Unit,
         selectedDate: LocalDate?,
         onDateSelected: (LocalDate?) -> Unit,
-        onNavigateToSessionDetail: (String) -> Unit,
+        onNavigateToSessionDetail: (String) -> Unit
-        onEndSession: () -> Unit
 ) {
     val sessionsByDate =
             remember(sessions) {
@@ -331,144 +322,155 @@ fun CalendarView(
                         java.time.Instant.parse(it.date)
                                 .atZone(java.time.ZoneId.systemDefault())
                                 .toLocalDate()
-                    } catch (e: Exception) {
+                    } catch (_: Exception) {
                         LocalDate.parse(it.date, DateTimeFormatter.ISO_LOCAL_DATE)
                     }
                 }
             }
 
-    Column(modifier = Modifier.fillMaxSize()) {
+    val firstDayOfMonth = selectedMonth.atDay(1)
-        Card(
+    val daysInMonth = selectedMonth.lengthOfMonth()
-                modifier = Modifier.fillMaxWidth(),
+    val firstDayOfWeek = firstDayOfMonth.dayOfWeek.value % 7
-                colors =
+    val totalCells =
-                        CardDefaults.cardColors(
+            ((firstDayOfWeek + daysInMonth) / 7.0).let {
-                                containerColor = MaterialTheme.colorScheme.surfaceVariant
+                if (it == it.toInt().toDouble()) it.toInt() * 7 else (it.toInt() + 1) * 7
-                        )
+            }
-        ) {
+    val numRows = totalCells / 7
-            Column(
+
-                    modifier = Modifier.fillMaxWidth().padding(horizontal = 8.dp, vertical = 12.dp),
+    LazyColumn(modifier = Modifier.fillMaxSize()) {
-                    horizontalAlignment = Alignment.CenterHorizontally
+        item {
+            Card(
+                    modifier = Modifier.fillMaxWidth(),
+                    colors =
+                            CardDefaults.cardColors(
+                                    containerColor = MaterialTheme.colorScheme.surfaceVariant
+                            )
             ) {
-                Row(
+                Column(
-                        modifier = Modifier.fillMaxWidth(),
+                        modifier =
-                        horizontalArrangement = Arrangement.SpaceBetween,
+                                Modifier.fillMaxWidth().padding(horizontal = 8.dp, vertical = 12.dp),
-                        verticalAlignment = Alignment.CenterVertically
+                        horizontalAlignment = Alignment.CenterHorizontally
                 ) {
-                    IconButton(onClick = { onMonthChange(selectedMonth.minusMonths(1)) }) {
+                    Row(
-                        Text("‹", style = MaterialTheme.typography.headlineMedium)
+                            modifier = Modifier.fillMaxWidth(),
+                            horizontalArrangement = Arrangement.SpaceBetween,
+                            verticalAlignment = Alignment.CenterVertically
+                    ) {
+                        IconButton(onClick = { onMonthChange(selectedMonth.minusMonths(1)) }) {
+                            Text("‹", style = MaterialTheme.typography.headlineMedium)
+                        }
+
+                        Text(
+                                text =
+                                        "${selectedMonth.month.getDisplayName(TextStyle.FULL, Locale.getDefault())} ${selectedMonth.year}",
+                                style = MaterialTheme.typography.titleMedium,
+                                fontWeight = FontWeight.Bold
+                        )
+
+                        IconButton(onClick = { onMonthChange(selectedMonth.plusMonths(1)) }) {
+                            Text("›", style = MaterialTheme.typography.headlineMedium)
+                        }
                     }
 
+                    Spacer(modifier = Modifier.height(8.dp))
+
+                    Button(
+                            onClick = {
+                                val today = LocalDate.now()
+                                onMonthChange(YearMonth.from(today))
+                                onDateSelected(today)
+                            },
+                            shape = RoundedCornerShape(50),
+                            colors =
+                                    ButtonDefaults.buttonColors(
+                                            containerColor = MaterialTheme.colorScheme.primary
+                                    ),
+                            contentPadding = PaddingValues(horizontal = 20.dp, vertical = 8.dp)
+                    ) {
+                        Text(
+                                text = "Today",
+                                style = MaterialTheme.typography.labelLarge,
+                                fontWeight = FontWeight.SemiBold
+                        )
+                    }
+                }
+            }
+
+            Spacer(modifier = Modifier.height(16.dp))
+
+            Row(modifier = Modifier.fillMaxWidth()) {
+                listOf("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat").forEach { day ->
                     Text(
-                            text =
+                            text = day,
-                                    "${selectedMonth.month.getDisplayName(TextStyle.FULL, Locale.getDefault())} ${selectedMonth.year}",
+                            modifier = Modifier.weight(1f),
-                            style = MaterialTheme.typography.titleMedium,
+                            textAlign = TextAlign.Center,
+                            style = MaterialTheme.typography.labelSmall,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
                             fontWeight = FontWeight.Bold
                     )
+                }
+            }
 
-                    IconButton(onClick = { onMonthChange(selectedMonth.plusMonths(1)) }) {
+            Spacer(modifier = Modifier.height(8.dp))
-                        Text("›", style = MaterialTheme.typography.headlineMedium)
+        }
+
+        items(numRows) { rowIndex ->
+            Row(modifier = Modifier.fillMaxWidth()) {
+                for (colIndex in 0 until 7) {
+                    val index = rowIndex * 7 + colIndex
+                    val dayNumber = index - firstDayOfWeek + 1
+
+                    Box(modifier = Modifier.weight(1f)) {
+                        if (dayNumber in 1..daysInMonth) {
+                            val date = selectedMonth.atDay(dayNumber)
+                            val sessionsOnDate = sessionsByDate[date] ?: emptyList()
+                            val isSelected = date == selectedDate
+                            val isToday = date == LocalDate.now()
+
+                            CalendarDay(
+                                    day = dayNumber,
+                                    hasSession = sessionsOnDate.isNotEmpty(),
+                                    isSelected = isSelected,
+                                    isToday = isToday,
+                                    onClick = {
+                                        if (sessionsOnDate.isNotEmpty()) {
+                                            onDateSelected(if (isSelected) null else date)
+                                        }
+                                    }
+                            )
+                        } else {
+                            Spacer(modifier = Modifier.aspectRatio(1f))
+                        }
                     }
                 }
-
-                Spacer(modifier = Modifier.height(8.dp))
-
-                Button(
-                        onClick = {
-                            val today = LocalDate.now()
-                            onMonthChange(YearMonth.from(today))
-                            onDateSelected(today)
-                        },
-                        shape = RoundedCornerShape(50),
-                        colors =
-                                ButtonDefaults.buttonColors(
-                                        containerColor = MaterialTheme.colorScheme.primary
-                                ),
-                        contentPadding = PaddingValues(horizontal = 20.dp, vertical = 8.dp)
-                ) {
-                    Text(
-                            text = "Today",
-                            style = MaterialTheme.typography.labelLarge,
-                            fontWeight = FontWeight.SemiBold
-                    )
-                }
-            }
-        }
-
-        Spacer(modifier = Modifier.height(16.dp))
-
-        Row(modifier = Modifier.fillMaxWidth()) {
-            listOf("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat").forEach { day ->
-                Text(
-                        text = day,
-                        modifier = Modifier.weight(1f),
-                        textAlign = TextAlign.Center,
-                        style = MaterialTheme.typography.labelSmall,
-                        color = MaterialTheme.colorScheme.onSurfaceVariant,
-                        fontWeight = FontWeight.Bold
-                )
-            }
-        }
-
-        Spacer(modifier = Modifier.height(8.dp))
-
-        val firstDayOfMonth = selectedMonth.atDay(1)
-        val daysInMonth = selectedMonth.lengthOfMonth()
-        val firstDayOfWeek = firstDayOfMonth.dayOfWeek.value % 7
-        val totalCells =
-                ((firstDayOfWeek + daysInMonth) / 7.0).let {
-                    if (it == it.toInt().toDouble()) it.toInt() * 7 else (it.toInt() + 1) * 7
-                }
-
-        LazyVerticalGrid(columns = GridCells.Fixed(7), modifier = Modifier.fillMaxWidth()) {
-            items(totalCells) { index ->
-                val dayNumber = index - firstDayOfWeek + 1
-
-                if (dayNumber in 1..daysInMonth) {
-                    val date = selectedMonth.atDay(dayNumber)
-                    val sessionsOnDate = sessionsByDate[date] ?: emptyList()
-                    val isSelected = date == selectedDate
-                    val isToday = date == LocalDate.now()
-
-                    CalendarDay(
-                            day = dayNumber,
-                            hasSession = sessionsOnDate.isNotEmpty(),
-                            isSelected = isSelected,
-                            isToday = isToday,
-                            onClick = {
-                                if (sessionsOnDate.isNotEmpty()) {
-                                    onDateSelected(if (isSelected) null else date)
-                                }
-                            }
-                    )
-                } else {
-                    Spacer(modifier = Modifier.aspectRatio(1f))
-                }
             }
         }
 
         if (selectedDate != null) {
             val sessionsOnSelectedDate = sessionsByDate[selectedDate] ?: emptyList()
 
-            Spacer(modifier = Modifier.height(16.dp))
+            item {
+                Spacer(modifier = Modifier.height(16.dp))
 
-            Text(
+                Text(
-                    text =
+                        text =
-                            "Sessions on ${selectedDate.format(DateTimeFormatter.ofPattern("MMMM d, yyyy"))}",
+                                "Sessions on ${selectedDate.format(DateTimeFormatter.ofPattern("MMMM d, yyyy"))}",
-                    style = MaterialTheme.typography.titleSmall,
+                        style = MaterialTheme.typography.titleSmall,
-                    fontWeight = FontWeight.Bold,
+                        fontWeight = FontWeight.Bold,
-                    modifier = Modifier.padding(vertical = 8.dp)
+                        modifier = Modifier.padding(vertical = 8.dp)
-            )
+                )
-
-            LazyColumn(modifier = Modifier.fillMaxWidth()) {
-                items(sessionsOnSelectedDate) { session ->
-                    SessionCard(
-                            session = session,
-                            gymName = gyms.find { it.id == session.gymId }?.name ?: "Unknown Gym",
-                            onClick = { onNavigateToSessionDetail(session.id) }
-                    )
-                    Spacer(modifier = Modifier.height(8.dp))
-                }
             }
+
+            items(sessionsOnSelectedDate) { session ->
+                SessionCard(
+                        session = session,
+                        gymName = gyms.find { it.id == session.gymId }?.name ?: "Unknown Gym",
+                        onClick = { onNavigateToSessionDetail(session.id) }
+                )
+                Spacer(modifier = Modifier.height(8.dp))
+            }
+
+            item { Spacer(modifier = Modifier.height(16.dp)) }
         }
     }
 }

android/app/src/main/java/com/atridad/ascently/ui/screens/SettingsScreen.kt

@@ -216,9 +216,7 @@ fun SettingsScreen(viewModel: ClimbViewModel) {
                                             // Manual Sync Button
                                             TextButton(
                                                     onClick = {
-                                                        coroutineScope.launch {
+                                                        viewModel.performManualSync()
-                                                            viewModel.performManualSync()
-                                                        }
                                                     },
                                                     enabled = isConnected && !isSyncing
                                             ) {
@@ -583,41 +581,6 @@ fun SettingsScreen(viewModel: ClimbViewModel) {
 
                     Spacer(modifier = Modifier.height(12.dp))
 
-                    Card(
-                            shape = RoundedCornerShape(12.dp),
-                            colors =
-                                    CardDefaults.cardColors(
-                                            containerColor =
-                                                    MaterialTheme.colorScheme.surfaceVariant.copy(
-                                                            alpha = 0.3f
-                                                    )
-                                    )
-                    ) {
-                        ListItem(
-                                headlineContent = {
-                                    Row(
-                                            verticalAlignment = Alignment.CenterVertically,
-                                            horizontalArrangement = Arrangement.spacedBy(8.dp)
-                                    ) {
-                                        Icon(
-                                                painter =
-                                                        painterResource(
-                                                                id = R.drawable.ic_mountains
-                                                        ),
-                                                contentDescription = "Ascently Logo",
-                                                modifier = Modifier.size(24.dp),
-                                                tint = MaterialTheme.colorScheme.primary
-                                        )
-                                        Text("Ascently")
-                                    }
-                                },
-                                supportingContent = { Text("Track your climbing progress") },
-                                leadingContent = {}
-                        )
-                    }
-
-                    Spacer(modifier = Modifier.height(8.dp))
-
                     Card(
                             shape = RoundedCornerShape(12.dp),
                             colors =

android/app/src/main/java/com/atridad/ascently/ui/viewmodel/ClimbViewModel.kt

@@ -411,11 +411,13 @@ class ClimbViewModel(
     }
 
     // Sync-related methods
-    suspend fun performManualSync() {
+    fun performManualSync() {
-        try {
+        viewModelScope.launch {
-            syncService.syncWithServer()
+            try {
-        } catch (e: Exception) {
+                syncService.syncWithServer()
-            setError("Sync failed: ${e.message}")
+            } catch (e: Exception) {
+                setError("Sync failed: ${e.message}")
+            }
         }
     }
 

android/app/src/main/res/xml/data_extraction_rules.xml

@@ -5,10 +5,6 @@
 -->
 <data-extraction-rules>
     <cloud-backup>
-        <!-- TODO: Use <include> and <exclude> to control what is backed up.
-        <include .../>
-        <exclude .../>
-        -->
     </cloud-backup>
     <!--
     <device-transfer>

android/gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 agp = "8.12.3"
-kotlin = "2.2.20"
+kotlin = "2.2.21"
 coreKtx = "1.17.0"
 junit = "4.13.2"
 junitVersion = "1.3.0"
@@ -9,17 +9,17 @@ androidxTestCore = "1.7.0"
 androidxTestExt = "1.3.0"
 androidxTestRunner = "1.7.0"
 androidxTestRules = "1.7.0"
-lifecycleRuntimeKtx = "2.9.4"
+lifecycleRuntimeKtx = "2.10.0"
-activityCompose = "1.11.0"
+activityCompose = "1.12.0"
-composeBom = "2025.10.00"
+composeBom = "2025.11.01"
-room = "2.8.2"
+room = "2.8.4"
-navigation = "2.9.5"
+navigation = "2.9.6"
-viewmodel = "2.9.4"
+viewmodel = "2.10.0"
 kotlinxSerialization = "1.9.0"
 kotlinxCoroutines = "1.10.2"
 coil = "2.7.0"
 ksp = "2.2.20-2.0.3"
-exifinterface = "1.3.6"
+exifinterface = "1.4.1"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }

docs/package.json

@@ -1,7 +1,7 @@
 {
   "name": "ascently-docs",
   "type": "module",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "description": "Documentation site for Ascently - FOSS climbing tracking app",
   "repository": {
     "type": "git",
@@ -26,8 +26,8 @@
   },
   "dependencies": {
     "@astrojs/node": "^9.5.1",
-    "@astrojs/starlight": "^0.36.2",
+    "@astrojs/starlight": "^0.37.0",
-    "astro": "^5.16.0",
+    "astro": "^5.16.3",
     "qrcode": "^1.5.4",
     "sharp": "^0.34.5"
   },

docs/pnpm-lock.yaml

@@ -10,13 +10,13 @@ importers:
     dependencies:
       '@astrojs/node':
         specifier: ^9.5.1
-        version: 9.5.1(astro@5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))
+        version: 9.5.1(astro@5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))
       '@astrojs/starlight':
-        specifier: ^0.36.2
+        specifier: ^0.37.0
-        version: 0.36.2(astro@5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))
+        version: 0.37.0(astro@5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))
       astro:
-        specifier: ^5.16.0
+        specifier: ^5.16.3
-        version: 5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3)
+        version: 5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3)
       qrcode:
         specifier: ^1.5.4
         version: 1.5.4
@@ -57,8 +57,8 @@ packages:
   '@astrojs/sitemap@3.6.0':
     resolution: {integrity: sha512-4aHkvcOZBWJigRmMIAJwRQXBS+ayoP5z40OklTXYXhUDhwusz+DyDl+nSshY6y9DvkVEavwNcFO8FD81iGhXjg==}
 
-  '@astrojs/starlight@0.36.2':
+  '@astrojs/starlight@0.37.0':
-    resolution: {integrity: sha512-QR8NfO7+7DR13kBikhQwAj3IAoptLLNs9DkyKko2M2l3PrqpcpVUnw1JBJ0msGDIwE6tBbua2UeBND48mkh03w==}
+    resolution: {integrity: sha512-1AlaEjYYRO+5o6P5maPUBQZr6Q3wtuhMQTmsDQExI07wJVwe7EC2wGhXnFo+jpCjwHv/Bdg33PQheY4UhMj01g==}
     peerDependencies:
       astro: ^5.5.0
 
@@ -564,23 +564,23 @@ packages:
     cpu: [x64]
     os: [win32]
 
-  '@shikijs/core@3.15.0':
+  '@shikijs/core@3.17.1':
-    resolution: {integrity: sha512-8TOG6yG557q+fMsSVa8nkEDOZNTSxjbbR8l6lF2gyr6Np+jrPlslqDxQkN6rMXCECQ3isNPZAGszAfYoJOPGlg==}
+    resolution: {integrity: sha512-VWsduykcibGU0WMi66PflThDWyqEeTOiWdCRa3wmsZuishh+1PDSOh5gGxHdSrOtS+v1pmYaxodk/JNzwusElA==}
 
-  '@shikijs/engine-javascript@3.15.0':
+  '@shikijs/engine-javascript@3.17.1':
-    resolution: {integrity: sha512-ZedbOFpopibdLmvTz2sJPJgns8Xvyabe2QbmqMTz07kt1pTzfEvKZc5IqPVO/XFiEbbNyaOpjPBkkr1vlwS+qg==}
+    resolution: {integrity: sha512-Ars0DVJITQrkOl5Swwy+94NL/BlOi/w1NSFbPGkcsln7Dv+M2qHaVpNHwdtWCC4/arzvjuHbyWBUsWExDHPDLw==}
 
-  '@shikijs/engine-oniguruma@3.15.0':
+  '@shikijs/engine-oniguruma@3.17.1':
-    resolution: {integrity: sha512-HnqFsV11skAHvOArMZdLBZZApRSYS4LSztk2K3016Y9VCyZISnlYUYsL2hzlS7tPqKHvNqmI5JSUJZprXloMvA==}
+    resolution: {integrity: sha512-fsXPy4va/4iblEGS+22nP5V08IwwBcM+8xHUzSON0QmHm29/AJRghA95w9VDnxuwp9wOdJxEhfPkKp6vqcsN+w==}
 
-  '@shikijs/langs@3.15.0':
+  '@shikijs/langs@3.17.1':
-    resolution: {integrity: sha512-WpRvEFvkVvO65uKYW4Rzxs+IG0gToyM8SARQMtGGsH4GDMNZrr60qdggXrFOsdfOVssG/QQGEl3FnJ3EZ+8w8A==}
+    resolution: {integrity: sha512-YTBVN+L2j7zBuOVjNZ2XiSNQEkm/7wZ1TSc5UO77GJPcg7Rk25WSscWA7y8pW7Bo25JIU0EWchUkq/UQjOJlJA==}
 
-  '@shikijs/themes@3.15.0':
+  '@shikijs/themes@3.17.1':
-    resolution: {integrity: sha512-8ow2zWb1IDvCKjYb0KiLNrK4offFdkfNVPXb1OZykpLCzRU6j+efkY+Y7VQjNlNFXonSw+4AOdGYtmqykDbRiQ==}
+    resolution: {integrity: sha512-aohwwqNUB5h2ATfgrqYRPl8vyazqCiQ2wIV4xq+UzaBRHpqLMGSemkasK+vIEpl0YaendoaKUsDfpwhCqyHIaQ==}
 
-  '@shikijs/types@3.15.0':
+  '@shikijs/types@3.17.1':
-    resolution: {integrity: sha512-BnP+y/EQnhihgHy4oIAN+6FFtmfTekwOLsQbRw9hOKwqgNy8Bdsjq8B05oAt/ZgvIWWFrshV71ytOrlPfYjIJw==}
+    resolution: {integrity: sha512-yUFLiCnZHHJ16KbVbt3B1EzBUadU3OVpq0PEyb301m5BbuFKApQYBzJGhrK48hH/tYWSjzwcj7BSmYbBc0zntQ==}
 
   '@shikijs/vscode-textmate@10.0.2':
     resolution: {integrity: sha512-83yeghZ2xxin3Nj8z1NMd/NCuca+gsYXswywDy5bHvwlWL8tpTQmzGeUuHd9FC3E/SBEMvzJRwWEOz5gGes9Qg==}
@@ -694,8 +694,8 @@ packages:
     peerDependencies:
       astro: ^4.0.0-beta || ^5.0.0-beta || ^3.3.0
 
-  astro@5.16.0:
+  astro@5.16.3:
-    resolution: {integrity: sha512-GaDRs2Mngpw3dr2vc085GnORh98NiXxwIjg/EoQQQl/icZt3Z7s0BRsYHDZ8swkZbOA6wZsqWJdrNirl+iKcDg==}
+    resolution: {integrity: sha512-KzDk41F9Dspf5fM/Ls4XZhV4/csjJcWBrlenbnp5V3NGwU1zEaJz/HIyrdKdf5yw+FgwCeD2+Yos1Xkx9gnI0A==}
     engines: {node: 18.20.8 || ^20.3.0 || >=22.0.0, npm: '>=9.6.5', pnpm: '>=7.1.0'}
     hasBin: true
 
@@ -801,8 +801,8 @@ packages:
   cookie-es@1.2.2:
     resolution: {integrity: sha512-+W7VmiVINB+ywl1HGXJXmrqkOhpKrIiVZV6tQuV54ZyQC7MMuBt81Vc336GMLoHBq5hV/F9eXgt5Mnx0Rha5Fg==}
 
-  cookie@1.0.2:
+  cookie@1.1.1:
-    resolution: {integrity: sha512-9Kr/j4O16ISv8zBBhJoi4bXOYNTkFLOqSL3UDB0njXxCXNezjeyVrJyGOWtgfs/q2km1gwBcfH8q1yEGoMYunA==}
+    resolution: {integrity: sha512-ei8Aos7ja0weRpFzJnEA9UHJ/7XQmqglbRwnf2ATjcB9Wq874VKH9kfjjirM6UhU2/E5fFYadylyhFldcqSidQ==}
     engines: {node: '>=18'}
 
   crossws@0.3.5:
@@ -1246,8 +1246,8 @@ packages:
   mdast-util-phrasing@4.1.0:
     resolution: {integrity: sha512-TqICwyvJJpBwvGAMZjj4J2n0X8QWp21b9l0o7eXyVJ25YNWYbJDVIyD1bZXE6WtV6RmKJVYmQAKWa0zWOABz2w==}
 
-  mdast-util-to-hast@13.2.0:
+  mdast-util-to-hast@13.2.1:
-    resolution: {integrity: sha512-QGYKEuUsYT9ykKBCMOEDLsU5JRObWQusAolFMeko/tYPufNkRffBAQjIE+99jbA87xv6FgmjLtwjh9wBWajwAA==}
+    resolution: {integrity: sha512-cctsq2wp5vTsLIcaymblUriiTcZd0CwWtCbLvrOzYCDZoWyMNV8sZ7krj09FSnsiJi3WVsHLM4k6Dq/yaPyCXA==}
 
   mdast-util-to-markdown@2.1.2:
     resolution: {integrity: sha512-xj68wMTvGXVOKonmog6LwyJKrYXZPvlwabaryTjLh9LuvovB/KAH+kvi8Gjj+7rJjsFi23nkUxRQv1KqSroMqA==}
@@ -1422,8 +1422,8 @@ packages:
   oniguruma-parser@0.12.1:
     resolution: {integrity: sha512-8Unqkvk1RYc6yq2WBYRj4hdnsAxVze8i7iPfQr8e4uSP3tRv0rpZcbGUDvxfQQcdwHt/e9PrMvGCsa8OqG9X3w==}
 
-  oniguruma-to-es@4.3.3:
+  oniguruma-to-es@4.3.4:
-    resolution: {integrity: sha512-rPiZhzC3wXwE59YQMRDodUwwT9FZ9nNBwQQfsd1wfdtlKEyCdRV0avrTcSZ5xlIvGRVPd/cx6ZN45ECmS39xvg==}
+    resolution: {integrity: sha512-3VhUGN3w2eYxnTzHn+ikMI+fp/96KoRSVK9/kMTcFqj1NRDh2IhQCKvYxDnWePKRXY/AqH+Fuiyb7VHSzBjHfA==}
 
   p-limit@2.3.0:
     resolution: {integrity: sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==}
@@ -1449,8 +1449,8 @@ packages:
     resolution: {integrity: sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==}
     engines: {node: '>=6'}
 
-  package-manager-detector@1.5.0:
+  package-manager-detector@1.6.0:
-    resolution: {integrity: sha512-uBj69dVlYe/+wxj8JOpr97XfsxH/eumMt6HqjNTmJDf/6NO9s+0uxeOneIz3AsPt2m6y9PqzDzd3ATcU17MNfw==}
+    resolution: {integrity: sha512-61A5ThoTiDG/C8s8UMZwSorAGwMJ0ERVGj2OjoW5pAalsNOg15+iQiPzrLJ4jhZ1HJzmC2PIHT2oEiH3R5fzNA==}
 
   pagefind@1.4.0:
     resolution: {integrity: sha512-z2kY1mQlL4J8q5EIsQkLzQjilovKzfNVhX8De6oyE6uHpfFtyBaqUpcl/XzJC/4fjD8vBDyh1zolimIcVrCn9g==}
@@ -1652,8 +1652,8 @@ packages:
     resolution: {integrity: sha512-Ou9I5Ft9WNcCbXrU9cMgPBcCK8LiwLqcbywW3t4oDV37n1pzpuNLsYiAV8eODnjbtQlSDwZ2cUEeQz4E54Hltg==}
     engines: {node: ^18.17.0 || ^20.3.0 || >=21.0.0}
 
-  shiki@3.15.0:
+  shiki@3.17.1:
-    resolution: {integrity: sha512-kLdkY6iV3dYbtPwS9KXU7mjfmDm25f5m0IPNFnaXO7TBPcvbUOY72PYXSuSqDzwp+vlH/d7MXpHlKO/x+QoLXw==}
+    resolution: {integrity: sha512-KbAPJo6pQpfjupOg5HW0fk/OSmeBfzza2IjZ5XbNKbqhZaCoxro/EyOgesaLvTdyDfrsAUDA6L4q14sc+k9i7g==}
 
   sisteransi@1.0.5:
     resolution: {integrity: sha512-bLGGlR1QxBcynn2d5YmDX4MGjlZvy2MRBDRNHLJ8VI6l6+9FUiyTFNJ0IveOSP0bcXgVDPRcfGqA0pjaqUpfVg==}
@@ -2025,7 +2025,7 @@ snapshots:
       remark-parse: 11.0.0
       remark-rehype: 11.1.2
       remark-smartypants: 3.0.2
-      shiki: 3.15.0
+      shiki: 3.17.1
       smol-toml: 1.5.2
       unified: 11.0.5
       unist-util-remove-position: 5.0.0
@@ -2035,12 +2035,12 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  '@astrojs/mdx@4.3.12(astro@5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))':
+  '@astrojs/mdx@4.3.12(astro@5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))':
     dependencies:
       '@astrojs/markdown-remark': 6.3.9
       '@mdx-js/mdx': 3.1.1
       acorn: 8.15.0
-      astro: 5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3)
+      astro: 5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3)
       es-module-lexer: 1.7.0
       estree-util-visit: 2.0.0
       hast-util-to-html: 9.0.5
@@ -2054,10 +2054,10 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  '@astrojs/node@9.5.1(astro@5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))':
+  '@astrojs/node@9.5.1(astro@5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))':
     dependencies:
       '@astrojs/internal-helpers': 0.7.5
-      astro: 5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3)
+      astro: 5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3)
       send: 1.2.0
       server-destroy: 1.0.1
     transitivePeerDependencies:
@@ -2073,17 +2073,17 @@ snapshots:
       stream-replace-string: 2.0.0
       zod: 3.25.76
 
-  '@astrojs/starlight@0.36.2(astro@5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))':
+  '@astrojs/starlight@0.37.0(astro@5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))':
     dependencies:
       '@astrojs/markdown-remark': 6.3.9
-      '@astrojs/mdx': 4.3.12(astro@5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))
+      '@astrojs/mdx': 4.3.12(astro@5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))
       '@astrojs/sitemap': 3.6.0
       '@pagefind/default-ui': 1.4.0
       '@types/hast': 3.0.4
       '@types/js-yaml': 4.0.9
       '@types/mdast': 4.0.4
-      astro: 5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3)
+      astro: 5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3)
-      astro-expressive-code: 0.41.3(astro@5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))
+      astro-expressive-code: 0.41.3(astro@5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3))
       bcp-47: 2.1.0
       hast-util-from-html: 2.0.3
       hast-util-select: 6.0.4
@@ -2092,6 +2092,7 @@ snapshots:
       i18next: 23.16.8
       js-yaml: 4.1.1
       klona: 2.0.6
+      magic-string: 0.30.21
       mdast-util-directive: 3.1.0
       mdast-util-to-markdown: 2.1.2
       mdast-util-to-string: 4.0.0
@@ -2241,7 +2242,7 @@ snapshots:
   '@expressive-code/plugin-shiki@0.41.3':
     dependencies:
       '@expressive-code/core': 0.41.3
-      shiki: 3.15.0
+      shiki: 3.17.1
 
   '@expressive-code/plugin-text-markers@0.41.3':
     dependencies:
@@ -2471,33 +2472,33 @@ snapshots:
   '@rollup/rollup-win32-x64-msvc@4.53.3':
     optional: true
 
-  '@shikijs/core@3.15.0':
+  '@shikijs/core@3.17.1':
     dependencies:
-      '@shikijs/types': 3.15.0
+      '@shikijs/types': 3.17.1
       '@shikijs/vscode-textmate': 10.0.2
       '@types/hast': 3.0.4
       hast-util-to-html: 9.0.5
 
-  '@shikijs/engine-javascript@3.15.0':
+  '@shikijs/engine-javascript@3.17.1':
     dependencies:
-      '@shikijs/types': 3.15.0
+      '@shikijs/types': 3.17.1
       '@shikijs/vscode-textmate': 10.0.2
-      oniguruma-to-es: 4.3.3
+      oniguruma-to-es: 4.3.4
 
-  '@shikijs/engine-oniguruma@3.15.0':
+  '@shikijs/engine-oniguruma@3.17.1':
     dependencies:
-      '@shikijs/types': 3.15.0
+      '@shikijs/types': 3.17.1
       '@shikijs/vscode-textmate': 10.0.2
 
-  '@shikijs/langs@3.15.0':
+  '@shikijs/langs@3.17.1':
     dependencies:
-      '@shikijs/types': 3.15.0
+      '@shikijs/types': 3.17.1
 
-  '@shikijs/themes@3.15.0':
+  '@shikijs/themes@3.17.1':
     dependencies:
-      '@shikijs/types': 3.15.0
+      '@shikijs/types': 3.17.1
 
-  '@shikijs/types@3.15.0':
+  '@shikijs/types@3.17.1':
     dependencies:
       '@shikijs/vscode-textmate': 10.0.2
       '@types/hast': 3.0.4
@@ -2595,12 +2596,12 @@ snapshots:
 
   astring@1.9.0: {}
 
-  astro-expressive-code@0.41.3(astro@5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3)):
+  astro-expressive-code@0.41.3(astro@5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3)):
     dependencies:
-      astro: 5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3)
+      astro: 5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3)
       rehype-expressive-code: 0.41.3
 
-  astro@5.16.0(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3):
+  astro@5.16.3(@types/node@24.10.1)(rollup@4.53.3)(typescript@5.9.3):
     dependencies:
       '@astrojs/compiler': 2.13.0
       '@astrojs/internal-helpers': 0.7.5
@@ -2616,7 +2617,7 @@ snapshots:
       ci-info: 4.3.1
       clsx: 2.1.1
       common-ancestor-path: 1.0.1
-      cookie: 1.0.2
+      cookie: 1.1.1
       cssesc: 3.0.0
       debug: 4.4.3
       deterministic-object-hash: 2.0.2
@@ -2640,13 +2641,13 @@ snapshots:
       neotraverse: 0.6.18
       p-limit: 6.2.0
       p-queue: 8.1.1
-      package-manager-detector: 1.5.0
+      package-manager-detector: 1.6.0
       piccolore: 0.1.3
       picomatch: 4.0.3
       prompts: 2.4.2
       rehype: 13.0.2
       semver: 7.7.3
-      shiki: 3.15.0
+      shiki: 3.17.1
       smol-toml: 1.5.2
       svgo: 4.0.0
       tinyexec: 1.0.2
@@ -2785,7 +2786,7 @@ snapshots:
 
   cookie-es@1.2.2: {}
 
-  cookie@1.0.2: {}
+  cookie@1.1.1: {}
 
   crossws@0.3.5:
     dependencies:
@@ -3116,7 +3117,7 @@ snapshots:
       hast-util-from-parse5: 8.0.3
       hast-util-to-parse5: 8.0.0
       html-void-elements: 3.0.0
-      mdast-util-to-hast: 13.2.0
+      mdast-util-to-hast: 13.2.1
       parse5: 7.3.0
       unist-util-position: 5.0.0
       unist-util-visit: 5.0.0
@@ -3171,7 +3172,7 @@ snapshots:
       comma-separated-tokens: 2.0.3
       hast-util-whitespace: 3.0.0
       html-void-elements: 3.0.0
-      mdast-util-to-hast: 13.2.0
+      mdast-util-to-hast: 13.2.1
       property-information: 7.1.0
       space-separated-tokens: 2.0.2
       stringify-entities: 4.0.4
@@ -3468,7 +3469,7 @@ snapshots:
       '@types/mdast': 4.0.4
       unist-util-is: 6.0.1
 
-  mdast-util-to-hast@13.2.0:
+  mdast-util-to-hast@13.2.1:
     dependencies:
       '@types/hast': 3.0.4
       '@types/mdast': 4.0.4
@@ -3816,7 +3817,7 @@ snapshots:
 
   oniguruma-parser@0.12.1: {}
 
-  oniguruma-to-es@4.3.3:
+  oniguruma-to-es@4.3.4:
     dependencies:
       oniguruma-parser: 0.12.1
       regex: 6.0.1
@@ -3843,7 +3844,7 @@ snapshots:
 
   p-try@2.2.0: {}
 
-  package-manager-detector@1.5.0: {}
+  package-manager-detector@1.6.0: {}
 
   pagefind@1.4.0:
     optionalDependencies:
@@ -4051,7 +4052,7 @@ snapshots:
     dependencies:
       '@types/hast': 3.0.4
       '@types/mdast': 4.0.4
-      mdast-util-to-hast: 13.2.0
+      mdast-util-to-hast: 13.2.1
       unified: 11.0.5
       vfile: 6.0.3
 
@@ -4184,14 +4185,14 @@ snapshots:
       '@img/sharp-win32-ia32': 0.34.5
       '@img/sharp-win32-x64': 0.34.5
 
-  shiki@3.15.0:
+  shiki@3.17.1:
     dependencies:
-      '@shikijs/core': 3.15.0
+      '@shikijs/core': 3.17.1
-      '@shikijs/engine-javascript': 3.15.0
+      '@shikijs/engine-javascript': 3.17.1
-      '@shikijs/engine-oniguruma': 3.15.0
+      '@shikijs/engine-oniguruma': 3.17.1
-      '@shikijs/langs': 3.15.0
+      '@shikijs/langs': 3.17.1
-      '@shikijs/themes': 3.15.0
+      '@shikijs/themes': 3.17.1
-      '@shikijs/types': 3.15.0
+      '@shikijs/types': 3.17.1
       '@shikijs/vscode-textmate': 10.0.2
       '@types/hast': 3.0.4
 

docs/src/config.ts

@@ -5,7 +5,7 @@ export const requirements = {
 
 export const downloadLinks = {
   android: {
-    releases: "https://git.atri.dad/atridad/Ascently/releases",
+    releases: "https://git.atri.dad/atridad/Ascently/tags?q=Android",
     obtainium:
       "https://apps.obtainium.imranr.dev/redirect?r=obtainium://add/https://git.atri.dad/atridad/Ascently/releases",
     playStore: "",

ios/Ascently.xcodeproj/project.pbxproj

@@ -465,7 +465,7 @@
 				CODE_SIGN_ENTITLEMENTS = Ascently/Ascently.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 32;
+				CURRENT_PROJECT_VERSION = 36;
 				DEVELOPMENT_TEAM = 4BC9Y2LL4B;
 				DRIVERKIT_DEPLOYMENT_TARGET = 24.6;
 				ENABLE_PREVIEWS = YES;
@@ -487,7 +487,7 @@
 					"@executable_path/Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 15.6;
-				MARKETING_VERSION = 2.3.0;
+				MARKETING_VERSION = 2.4.2;
 				PRODUCT_BUNDLE_IDENTIFIER = com.atridad.Ascently;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -513,7 +513,7 @@
 				CODE_SIGN_ENTITLEMENTS = Ascently/Ascently.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 32;
+				CURRENT_PROJECT_VERSION = 36;
 				DEVELOPMENT_TEAM = 4BC9Y2LL4B;
 				DRIVERKIT_DEPLOYMENT_TARGET = 24.6;
 				ENABLE_PREVIEWS = YES;
@@ -535,7 +535,7 @@
 					"@executable_path/Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 15.6;
-				MARKETING_VERSION = 2.3.0;
+				MARKETING_VERSION = 2.4.2;
 				PRODUCT_BUNDLE_IDENTIFIER = com.atridad.Ascently;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -602,7 +602,7 @@
 				ASSETCATALOG_COMPILER_WIDGET_BACKGROUND_COLOR_NAME = WidgetBackground;
 				CODE_SIGN_ENTITLEMENTS = SessionStatusLiveExtension.entitlements;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 32;
+				CURRENT_PROJECT_VERSION = 36;
 				DEVELOPMENT_TEAM = 4BC9Y2LL4B;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = SessionStatusLive/Info.plist;
@@ -613,7 +613,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 2.3.0;
+				MARKETING_VERSION = 2.4.2;
 				PRODUCT_BUNDLE_IDENTIFIER = com.atridad.Ascently.SessionStatusLive;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
@@ -632,7 +632,7 @@
 				ASSETCATALOG_COMPILER_WIDGET_BACKGROUND_COLOR_NAME = WidgetBackground;
 				CODE_SIGN_ENTITLEMENTS = SessionStatusLiveExtension.entitlements;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 32;
+				CURRENT_PROJECT_VERSION = 36;
 				DEVELOPMENT_TEAM = 4BC9Y2LL4B;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = SessionStatusLive/Info.plist;
@@ -643,7 +643,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 2.3.0;
+				MARKETING_VERSION = 2.4.2;
 				PRODUCT_BUNDLE_IDENTIFIER = com.atridad.Ascently.SessionStatusLive;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;

ios/Ascently/AppIntents/AscentlyShortcuts.swift

@@ -1,7 +1,6 @@
 import AppIntents
 
-/// Provides a curated list of the most useful Ascently shortcuts for Siri and the Shortcuts app.
+/// Defines the App Shortcuts available in the Shortcuts app.
-/// Surfaces intents that users can trigger hands-free to manage their climbing sessions.
 struct AscentlyShortcuts: AppShortcutsProvider {
 
     static var shortcutTileColor: ShortcutTileColor {
@@ -11,23 +10,15 @@ struct AscentlyShortcuts: AppShortcutsProvider {
     static var appShortcuts: [AppShortcut] {
         return [
             AppShortcut(
-                intent: StartLastGymSessionIntent(),
+                intent: ToggleSessionIntent(),
                 phrases: [
-                    "Start my climb in \(.applicationName)",
+                    "Toggle climb in \(.applicationName)",
-                    "Begin my last gym session in \(.applicationName)",
+                    "Start or stop climb in \(.applicationName)",
+                    "Climb toggle in \(.applicationName)",
                 ],
-                shortTitle: "Start Climb",
+                shortTitle: "Toggle Session",
                 systemImageName: "figure.climbing"
-            ),
+            )
-            AppShortcut(
-                intent: EndActiveSessionIntent(),
-                phrases: [
-                    "Finish my climb in \(.applicationName)",
-                    "End my session in \(.applicationName)",
-                ],
-                shortTitle: "End Climb",
-                systemImageName: "flag.checkered"
-            ),
         ]
     }
 }

ios/Ascently/AppIntents/EndActiveSessionIntent.swift

@@ -1,40 +0,0 @@
-import AppIntents
-import Foundation
-
-/// Ends the currently active climbing session so logging stays in sync across devices.
-/// Exposed to Shortcuts so users can wrap up a session without opening the app.
-struct EndActiveSessionIntent: AppIntent {
-
-    static var title: LocalizedStringResource {
-        "End Active Session"
-    }
-
-    static var description: IntentDescription {
-        IntentDescription(
-            "Stop the active climbing session and save its progress in Ascently."
-        )
-    }
-
-    static var openAppWhenRun: Bool {
-        false
-    }
-
-    func perform() async throws -> some IntentResult & ProvidesDialog {
-        do {
-            let summary = try await SessionIntentController().endActiveSession()
-            let dialog = IntentDialog("Session at \(summary.gymName) ended. Nice work!")
-            return .result(dialog: dialog)
-        } catch SessionIntentError.noActiveSession {
-            // No active session is fine - just return a friendly message
-            let dialog = IntentDialog("No active session to end.")
-            return .result(dialog: dialog)
-        } catch {
-            // Re-throw other errors
-            throw error
-        }
-    }
-
-    static var parameterSummary: some ParameterSummary {
-        Summary("End my current climbing session")
-    }
-}

ios/Ascently/AppIntents/SessionIntentSupport.swift

@@ -27,7 +27,7 @@ struct SessionIntentSummary: Sendable {
     let status: SessionStatus
 }
 
-/// Central controller that exposes the minimal climbing session operations used by App Intents and shortcuts.
+/// Controller for handling session operations from App Intents.
 @MainActor
 final class SessionIntentController {
 
@@ -39,9 +39,9 @@ final class SessionIntentController {
 
     /// Starts a new session using the most recently visited gym.
     func startSessionWithLastUsedGym() async throws -> SessionIntentSummary {
-        // Give a moment for data to be ready if app just launched
+        // Wait for data to load
         if dataManager.gyms.isEmpty {
-            try? await Task.sleep(nanoseconds: 500_000_000)  // 0.5 seconds
+            try? await Task.sleep(nanoseconds: 500_000_000)
         }
 
         guard let lastGym = dataManager.getLastUsedGym() else {
@@ -89,7 +89,23 @@ final class SessionIntentController {
     }
 
     private func logFailure(_ error: SessionIntentError, context: String) {
-        // Logging from intent context - errors are visible to user via dialog
+        // Log error for debugging
         print("SessionIntentError: \(error). Context: \(context)")
     }
+
+    /// Toggles the session state: ends active session if one exists, otherwise starts a new one.
+    func toggleSession() async throws -> (summary: SessionIntentSummary, wasStarted: Bool) {
+        // Wait for data to load
+        if dataManager.gyms.isEmpty {
+            try? await Task.sleep(nanoseconds: 500_000_000)
+        }
+
+        if dataManager.activeSession != nil {
+            let summary = try await endActiveSession()
+            return (summary, false)
+        } else {
+            let summary = try await startSessionWithLastUsedGym()
+            return (summary, true)
+        }
+    }
 }

ios/Ascently/AppIntents/StartLastGymSessionIntent.swift

@@ -1,43 +0,0 @@
-import AppIntents
-import Foundation
-
-/// Starts a climbing session at the most recently visited gym.
-/// Exposed to Shortcuts so users can begin logging without opening the app.
-struct StartLastGymSessionIntent: AppIntent {
-
-    static var title: LocalizedStringResource {
-        "Start Last Gym Session"
-    }
-
-    static var description: IntentDescription {
-        IntentDescription(
-            "Begin a new climbing session using the most recent gym you visited in Ascently."
-        )
-    }
-
-    static var openAppWhenRun: Bool {
-        true
-    }
-
-    func perform() async throws -> some IntentResult & ProvidesDialog {
-        // Delay to ensure app has time to fully initialize if just launched
-        try? await Task.sleep(nanoseconds: 1_000_000_000)  // 1 second
-
-        let summary = try await SessionIntentController().startSessionWithLastUsedGym()
-
-        // Give Live Activity extra time to start
-        try? await Task.sleep(nanoseconds: 500_000_000)  // 0.5 seconds
-
-        return .result(
-            dialog: Self.successDialog(for: summary.gymName)
-        )
-    }
-
-    private static func successDialog(for gymName: String) -> IntentDialog {
-        IntentDialog("Session started at \(gymName). Have an awesome climb!")
-    }
-
-    static var parameterSummary: some ParameterSummary {
-        Summary("Start a session at my last gym")
-    }
-}

ios/Ascently/AppIntents/ToggleSessionIntent.swift

@@ -0,0 +1,40 @@
+import AppIntents
+import Foundation
+
+/// Toggles the climbing session state: starts a session if none is active, or ends the current one.
+struct ToggleSessionIntent: AppIntent {
+
+    static var title: LocalizedStringResource {
+        "Toggle Climbing Session"
+    }
+
+    static var description: IntentDescription {
+        IntentDescription(
+            "Starts a new session at your last gym if you're not climbing, or ends your current session if you are."
+        )
+    }
+
+    static var openAppWhenRun: Bool {
+        false
+    }
+
+    func perform() async throws -> some IntentResult & ProvidesDialog {
+        // Wait for app initialization
+        try? await Task.sleep(nanoseconds: 1_000_000_000)
+
+        let controller = await SessionIntentController()
+        let (summary, wasStarted) = try await controller.toggleSession()
+
+        if wasStarted {
+            // Wait for Live Activity
+            try? await Task.sleep(nanoseconds: 500_000_000)
+            return .result(dialog: IntentDialog("Session started at \(summary.gymName). Have an awesome climb!"))
+        } else {
+            return .result(dialog: IntentDialog("Session at \(summary.gymName) ended. Nice work!"))
+        }
+    }
+
+    static var parameterSummary: some ParameterSummary {
+        Summary("Toggle my climbing session")
+    }
+}

ios/Ascently/AscentlyApp.swift

@@ -13,10 +13,13 @@ class AppDelegate: NSObject, UIApplicationDelegate {
 struct AscentlyApp: App {
     @UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
     @Environment(\.scenePhase) private var scenePhase
+    @StateObject private var themeManager = ThemeManager()
 
     var body: some Scene {
         WindowGroup {
             ContentView()
+                .environmentObject(themeManager)
+                .tint(themeManager.accentColor)
         }
     }
 }

ios/Ascently/Components/PhotoOptionSheet.swift

@@ -8,6 +8,7 @@ struct PhotoOptionSheet: View {
     let onCameraSelected: () -> Void
     let onPhotoLibrarySelected: () -> Void
     let onDismiss: () -> Void
+    @EnvironmentObject var themeManager: ThemeManager
 
     var body: some View {
         NavigationView {
@@ -29,7 +30,7 @@ struct PhotoOptionSheet: View {
                         HStack {
                             Image(systemName: "photo.on.rectangle")
                                 .font(.title2)
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                             Text("Photo Library")
                                 .font(.headline)
                             Spacer()
@@ -52,7 +53,7 @@ struct PhotoOptionSheet: View {
                         HStack {
                             Image(systemName: "camera.fill")
                                 .font(.title2)
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                             Text("Camera")
                                 .font(.headline)
                             Spacer()

ios/Ascently/Services/Sync/SyncMerger.swift

@@ -0,0 +1,181 @@
+import Foundation
+
+struct SyncMerger {
+    private static let logTag = "SyncMerger"
+    
+    static func mergeDataSafely(
+        localBackup: ClimbDataBackup,
+        serverBackup: ClimbDataBackup,
+        dataManager: ClimbingDataManager,
+        imagePathMapping: [String: String]
+    ) throws -> (gyms: [Gym], problems: [Problem], sessions: [ClimbSession], attempts: [Attempt], uniqueDeletions: [DeletedItem]) {
+        
+        // Merge deletion lists first to prevent resurrection of deleted items
+        let localDeletions = dataManager.getDeletedItems()
+        let allDeletions = localDeletions + serverBackup.deletedItems
+        let uniqueDeletions = Array(Set(allDeletions))
+        
+        AppLogger.info("Merging gyms...", tag: logTag)
+        let mergedGyms = mergeGyms(
+            local: dataManager.gyms,
+            server: serverBackup.gyms,
+            deletedItems: uniqueDeletions)
+        
+        AppLogger.info("Merging problems...", tag: logTag)
+        let mergedProblems = try mergeProblems(
+            local: dataManager.problems,
+            server: serverBackup.problems,
+            imagePathMapping: imagePathMapping,
+            deletedItems: uniqueDeletions)
+        
+        AppLogger.info("Merging sessions...", tag: logTag)
+        let mergedSessions = try mergeSessions(
+            local: dataManager.sessions,
+            server: serverBackup.sessions,
+            deletedItems: uniqueDeletions)
+        
+        AppLogger.info("Merging attempts...", tag: logTag)
+        let mergedAttempts = try mergeAttempts(
+            local: dataManager.attempts,
+            server: serverBackup.attempts,
+            deletedItems: uniqueDeletions)
+            
+        return (mergedGyms, mergedProblems, mergedSessions, mergedAttempts, uniqueDeletions)
+    }
+    
+    private static func mergeGyms(local: [Gym], server: [BackupGym], deletedItems: [DeletedItem]) -> [Gym] {
+        var merged = local
+        let deletedGymIds = Set(deletedItems.filter { $0.type == "gym" }.map { $0.id })
+        let localGymIds = Set(local.map { $0.id.uuidString })
+        
+        merged.removeAll { deletedGymIds.contains($0.id.uuidString) }
+        
+        // Add new items from server (excluding deleted ones)
+        for serverGym in server {
+            if let serverGymConverted = try? serverGym.toGym() {
+                let localHasGym = localGymIds.contains(serverGym.id)
+                let isDeleted = deletedGymIds.contains(serverGym.id)
+                
+                if !localHasGym && !isDeleted {
+                    merged.append(serverGymConverted)
+                }
+            }
+        }
+        
+        return merged
+    }
+    
+    private static func mergeProblems(
+        local: [Problem],
+        server: [BackupProblem],
+        imagePathMapping: [String: String],
+        deletedItems: [DeletedItem]
+    ) throws -> [Problem] {
+        var merged = local
+        let deletedProblemIds = Set(deletedItems.filter { $0.type == "problem" }.map { $0.id })
+        let localProblemIds = Set(local.map { $0.id.uuidString })
+        
+        merged.removeAll { deletedProblemIds.contains($0.id.uuidString) }
+        
+        for serverProblem in server {
+            let localHasProblem = localProblemIds.contains(serverProblem.id)
+            let isDeleted = deletedProblemIds.contains(serverProblem.id)
+            
+            if !localHasProblem && !isDeleted {
+                var problemToAdd = serverProblem
+                
+                if !imagePathMapping.isEmpty, let imagePaths = serverProblem.imagePaths, !imagePaths.isEmpty {
+                    let updatedImagePaths = imagePaths.compactMap { oldPath in
+                        imagePathMapping[oldPath] ?? oldPath
+                    }
+                    if updatedImagePaths != imagePaths {
+                        problemToAdd = BackupProblem(
+                            id: serverProblem.id,
+                            gymId: serverProblem.gymId,
+                            name: serverProblem.name,
+                            description: serverProblem.description,
+                            climbType: serverProblem.climbType,
+                            difficulty: serverProblem.difficulty,
+                            tags: serverProblem.tags,
+                            location: serverProblem.location,
+                            imagePaths: updatedImagePaths,
+                            isActive: serverProblem.isActive,
+                            dateSet: serverProblem.dateSet,
+                            notes: serverProblem.notes,
+                            createdAt: serverProblem.createdAt,
+                            updatedAt: serverProblem.updatedAt
+                        )
+                    }
+                }
+                
+                if let serverProblemConverted = try? problemToAdd.toProblem() {
+                    merged.append(serverProblemConverted)
+                }
+            }
+        }
+        
+        return merged
+    }
+    
+    private static func mergeSessions(
+        local: [ClimbSession], server: [BackupClimbSession], deletedItems: [DeletedItem]
+    ) throws -> [ClimbSession] {
+        var merged = local
+        let deletedSessionIds = Set(deletedItems.filter { $0.type == "session" }.map { $0.id })
+        let localSessionIds = Set(local.map { $0.id.uuidString })
+        
+        merged.removeAll { session in
+            deletedSessionIds.contains(session.id.uuidString) && session.status != .active
+        }
+        
+        for serverSession in server {
+            let localHasSession = localSessionIds.contains(serverSession.id)
+            let isDeleted = deletedSessionIds.contains(serverSession.id)
+            
+            if !localHasSession && !isDeleted {
+                if let serverSessionConverted = try? serverSession.toClimbSession() {
+                    merged.append(serverSessionConverted)
+                }
+            }
+        }
+        
+        return merged
+    }
+    
+    private static func mergeAttempts(
+        local: [Attempt], server: [BackupAttempt], deletedItems: [DeletedItem]
+    ) throws -> [Attempt] {
+        var merged = local
+        let deletedAttemptIds = Set(deletedItems.filter { $0.type == "attempt" }.map { $0.id })
+        let localAttemptIds = Set(local.map { $0.id.uuidString })
+        
+        // Get active session IDs to protect their attempts
+        let activeSessionIds = Set(
+            local.compactMap { attempt in
+                return attempt.sessionId
+            }.filter { sessionId in
+                // Check if this session ID belongs to an active session
+                // For now, we'll be conservative and not delete attempts during merge
+                return true
+            })
+        
+        // Remove items that were deleted on other devices (but be conservative with attempts)
+        merged.removeAll { attempt in
+            deletedAttemptIds.contains(attempt.id.uuidString)
+                && !activeSessionIds.contains(attempt.sessionId)
+        }
+        
+        for serverAttempt in server {
+            let localHasAttempt = localAttemptIds.contains(serverAttempt.id)
+            let isDeleted = deletedAttemptIds.contains(serverAttempt.id)
+            
+            if !localHasAttempt && !isDeleted {
+                if let serverAttemptConverted = try? serverAttempt.toAttempt() {
+                    merged.append(serverAttemptConverted)
+                }
+            }
+        }
+        
+        return merged
+    }
+}

ios/Ascently/Services/Sync/SyncProvider.swift

@@ -0,0 +1,73 @@
+import Foundation
+
+enum SyncProviderType: String, CaseIterable, Identifiable {
+    case none
+    case server
+    case iCloud
+    
+    var id: String { rawValue }
+    var displayName: String {
+        switch self {
+        case .none: return "None"
+        case .server: return "Self-Hosted Server"
+        case .iCloud: return "iCloud"
+        }
+    }
+}
+
+protocol SyncProvider {
+    var type: SyncProviderType { get }
+    var isConfigured: Bool { get }
+    var isConnected: Bool { get }
+    
+    func sync(dataManager: ClimbingDataManager) async throws
+    func testConnection() async throws
+    func disconnect()
+}
+
+enum SyncError: LocalizedError {
+    case notConfigured
+    case notConnected
+    case invalidURL
+    case invalidResponse
+    case unauthorized
+    case badRequest
+    case serverError(Int)
+    case decodingError(Error)
+    case exportFailed
+    case importFailed(Error)
+    case imageNotFound
+    case imageUploadFailed
+    case providerError(String)
+
+    var errorDescription: String? {
+        switch self {
+        case .notConfigured:
+            return "Sync server not configured. Please set server URL and auth token."
+        case .notConnected:
+            return "Not connected to sync server. Please test connection first."
+        case .invalidURL:
+            return "Invalid server URL."
+        case .invalidResponse:
+            return "Invalid response from server."
+        case .unauthorized:
+            return "Authentication failed. Check your auth token."
+        case .badRequest:
+            return "Bad request. Check your data format."
+        case .serverError(let code):
+            return "Server error (code \(code))."
+        case .decodingError(let error):
+            return "Failed to decode response: \(error.localizedDescription)"
+        case .exportFailed:
+            return "Failed to export local data."
+        case .importFailed(let error):
+            return "Failed to import data: \(error.localizedDescription)"
+        case .imageNotFound:
+            return "Image not found on server."
+        case .imageUploadFailed:
+            return "Failed to upload image to server."
+        case .providerError(let message):
+            return "Sync provider error: \(message)"
+        }
+    }
+}

ios/Ascently/Utils/ThemeManager.swift

@@ -0,0 +1,77 @@
+import SwiftUI
+import Combine
+
+class ThemeManager: ObservableObject {
+    @Published var accentColor: Color = .blue {
+        didSet {
+            saveColor()
+        }
+    }
+    
+    private let userDefaultsKey = "accentColorData"
+    
+    init() {
+        loadColor()
+    }
+    
+    private func loadColor() {
+        guard let data = UserDefaults.standard.data(forKey: userDefaultsKey) else {
+            self.accentColor = .blue
+            return
+        }
+        
+        do {
+            if let uiColor = try NSKeyedUnarchiver.unarchivedObject(ofClass: UIColor.self, from: data) {
+                self.accentColor = Color(uiColor)
+            }
+        } catch {
+            print("Failed to load accent color: \(error)")
+            self.accentColor = .blue
+        }
+    }
+    
+    private func saveColor() {
+        do {
+            let uiColor = UIColor(accentColor)
+            let data = try NSKeyedArchiver.archivedData(withRootObject: uiColor, requiringSecureCoding: false)
+            UserDefaults.standard.set(data, forKey: userDefaultsKey)
+        } catch {
+            print("Failed to save accent color: \(error)")
+        }
+    }
+    
+    func resetToDefault() {
+        accentColor = .blue
+    }
+    
+    // Curated list of preset colors that maintain good contrast
+    static let presetColors: [Color] = [
+        .blue,      // Default Blue
+        .purple,    // Purple
+        .pink,      // Pink
+        .red,       // Red
+        .orange,    // Orange
+        .green,     // Green
+        .teal,      // Teal
+        .indigo,    // Indigo
+        .mint,      // Mint
+        Color(uiColor: .systemBrown), // Brown
+        Color(uiColor: .systemCyan)   // Cyan
+    ]
+    
+    var contrastingTextColor: Color {
+        let uiColor = UIColor(accentColor)
+        var red: CGFloat = 0
+        var green: CGFloat = 0
+        var blue: CGFloat = 0
+        var alpha: CGFloat = 0
+        
+        uiColor.getRed(&red, green: &green, blue: &blue, alpha: &alpha)
+        
+        // Calculate relative luminance
+        let luminance = 0.299 * red + 0.587 * green + 0.114 * blue
+        
+        // Return black for light colors, white for dark colors
+        return luminance > 0.5 ? .black : .white
+    }
+}

ios/Ascently/Views/AddEdit/AddAttemptView.swift

@@ -5,6 +5,7 @@ struct AddAttemptView: View {
     let session: ClimbSession
     let gym: Gym
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @Environment(\.dismiss) private var dismiss
 
     @State private var selectedProblem: Problem?
@@ -158,6 +159,7 @@ struct AddAttemptView: View {
                         showingCreateProblem = true
                     }
                     .buttonStyle(.borderedProminent)
+                    .tint(themeManager.accentColor)
                 }
                 .padding(.vertical, 8)
             } else {
@@ -179,7 +181,7 @@ struct AddAttemptView: View {
                 Button("Create New Problem") {
                     showingCreateProblem = true
                 }
-                .foregroundColor(.blue)
+                .foregroundColor(themeManager.accentColor)
             }
         }
     }
@@ -198,7 +200,7 @@ struct AddAttemptView: View {
                     selectedPhotos = []
                     imageData = []
                 }
-                .foregroundColor(.blue)
+                .foregroundColor(themeManager.accentColor)
             }
         }
 
@@ -213,7 +215,7 @@ struct AddAttemptView: View {
                     Spacer()
                     if selectedClimbType == climbType {
                         Image(systemName: "checkmark.circle.fill")
-                            .foregroundColor(.blue)
+                            .foregroundColor(themeManager.accentColor)
                     } else {
                         Image(systemName: "circle")
                             .foregroundColor(.gray)
@@ -238,7 +240,7 @@ struct AddAttemptView: View {
                         Spacer()
                         if selectedDifficultySystem == system {
                             Image(systemName: "checkmark.circle.fill")
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                         } else {
                             Image(systemName: "circle")
                                 .foregroundColor(.gray)
@@ -272,7 +274,7 @@ struct AddAttemptView: View {
                                 }
                                 .buttonStyle(.bordered)
                                 .controlSize(.small)
-                                .tint(newProblemGrade == grade ? .blue : .gray)
+                                .tint(newProblemGrade == grade ? themeManager.accentColor : .gray)
                             }
                         }
                         .padding(.horizontal, 1)
@@ -287,12 +289,12 @@ struct AddAttemptView: View {
             }) {
                 HStack {
                     Image(systemName: "camera.fill")
-                        .foregroundColor(.blue)
+                        .foregroundColor(themeManager.accentColor)
                         .font(.title2)
                     VStack(alignment: .leading, spacing: 2) {
                         Text("Add Photos")
                             .font(.headline)
-                            .foregroundColor(.blue)
+                            .foregroundColor(themeManager.accentColor)
                         Text("\(imageData.count) of 5 photos added")
                             .font(.caption)
                             .foregroundColor(.secondary)
@@ -353,7 +355,7 @@ struct AddAttemptView: View {
                     Spacer()
                     if selectedResult == result {
                         Image(systemName: "checkmark.circle.fill")
-                            .foregroundColor(.blue)
+                            .foregroundColor(themeManager.accentColor)
                     } else {
                         Image(systemName: "circle")
                             .foregroundColor(.gray)
@@ -529,6 +531,7 @@ struct ProblemSelectionRow: View {
     let problem: Problem
     let isSelected: Bool
     let action: () -> Void
+    @EnvironmentObject var themeManager: ThemeManager
 
     var body: some View {
         HStack {
@@ -539,7 +542,7 @@ struct ProblemSelectionRow: View {
 
                 Text("\(problem.difficulty.system.displayName): \(problem.difficulty.grade)")
                     .font(.subheadline)
-                    .foregroundColor(.blue)
+                    .foregroundColor(themeManager.accentColor)
 
                 if let location = problem.location {
                     Text(location)
@@ -552,7 +555,7 @@ struct ProblemSelectionRow: View {
 
             if isSelected {
                 Image(systemName: "checkmark.circle.fill")
-                    .foregroundColor(.blue)
+                    .foregroundColor(themeManager.accentColor)
             } else {
                 Image(systemName: "circle")
                     .foregroundColor(.gray)
@@ -569,6 +572,7 @@ struct ProblemSelectionCard: View {
     let isSelected: Bool
     let action: () -> Void
     @State private var showingExpandedView = false
+    @EnvironmentObject var themeManager: ThemeManager
 
     var body: some View {
         VStack(spacing: 8) {
@@ -594,7 +598,7 @@ struct ProblemSelectionCard: View {
                         if isSelected {
                             Image(systemName: "checkmark.circle.fill")
                                 .foregroundColor(.white)
-                                .background(Circle().fill(.blue))
+                                .background(Circle().fill(themeManager.accentColor))
                                 .font(.title3)
                         }
                     }
@@ -634,7 +638,7 @@ struct ProblemSelectionCard: View {
                 Text(problem.difficulty.grade)
                     .font(.caption2)
                     .fontWeight(.bold)
-                    .foregroundColor(.blue)
+                    .foregroundColor(themeManager.accentColor)
 
                 if let location = problem.location {
                     Text(location)
@@ -648,8 +652,8 @@ struct ProblemSelectionCard: View {
         .padding(8)
         .background(
             RoundedRectangle(cornerRadius: 12)
-                .fill(isSelected ? .blue.opacity(0.1) : .gray.opacity(0.05))
+                .fill(isSelected ? themeManager.accentColor.opacity(0.1) : .gray.opacity(0.05))
-                .stroke(isSelected ? .blue : .clear, lineWidth: 2)
+                .stroke(isSelected ? themeManager.accentColor : .clear, lineWidth: 2)
         )
         .contentShape(Rectangle())
         .onTapGesture {
@@ -668,6 +672,7 @@ struct ProblemSelectionCard: View {
 struct ProblemExpandedView: View {
     let problem: Problem
     @Environment(\.dismiss) private var dismiss
+    @EnvironmentObject var themeManager: ThemeManager
     @State private var selectedImageIndex = 0
 
     var body: some View {
@@ -696,7 +701,7 @@ struct ProblemExpandedView: View {
                             Text(problem.difficulty.grade)
                                 .font(.title3)
                                 .fontWeight(.bold)
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
 
                             Text(problem.climbType.displayName)
                                 .font(.subheadline)
@@ -724,9 +729,9 @@ struct ProblemExpandedView: View {
                                             .padding(.vertical, 4)
                                             .background(
                                                 RoundedRectangle(cornerRadius: 8)
-                                                    .fill(.blue.opacity(0.1))
+                                                    .fill(themeManager.accentColor.opacity(0.1))
                                             )
-                                            .foregroundColor(.blue)
+                                            .foregroundColor(themeManager.accentColor)
                                     }
                                 }
                                 .padding(.horizontal)
@@ -752,6 +757,7 @@ struct ProblemExpandedView: View {
 struct EditAttemptView: View {
     let attempt: Attempt
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @Environment(\.dismiss) private var dismiss
 
     @State private var selectedProblem: Problem?
@@ -926,6 +932,7 @@ struct EditAttemptView: View {
                         showingCreateProblem = true
                     }
                     .buttonStyle(.borderedProminent)
+                    .tint(themeManager.accentColor)
                 }
                 .padding(.vertical, 8)
             } else {
@@ -947,7 +954,7 @@ struct EditAttemptView: View {
                 Button("Create New Problem") {
                     showingCreateProblem = true
                 }
-                .foregroundColor(.blue)
+                .foregroundColor(themeManager.accentColor)
             }
         }
     }
@@ -966,7 +973,7 @@ struct EditAttemptView: View {
                     selectedPhotos = []
                     imageData = []
                 }
-                .foregroundColor(.blue)
+                .foregroundColor(themeManager.accentColor)
             }
         }
 
@@ -981,7 +988,7 @@ struct EditAttemptView: View {
                     Spacer()
                     if selectedClimbType == climbType {
                         Image(systemName: "checkmark.circle.fill")
-                            .foregroundColor(.blue)
+                            .foregroundColor(themeManager.accentColor)
                     } else {
                         Image(systemName: "circle")
                             .foregroundColor(.gray)
@@ -1006,7 +1013,7 @@ struct EditAttemptView: View {
                         Spacer()
                         if selectedDifficultySystem == system {
                             Image(systemName: "checkmark.circle.fill")
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                         } else {
                             Image(systemName: "circle")
                                 .foregroundColor(.gray)
@@ -1040,7 +1047,7 @@ struct EditAttemptView: View {
                                 }
                                 .buttonStyle(.bordered)
                                 .controlSize(.small)
-                                .tint(newProblemGrade == grade ? .blue : .gray)
+                                .tint(newProblemGrade == grade ? themeManager.accentColor : .gray)
                             }
                         }
                         .padding(.horizontal, 1)
@@ -1055,12 +1062,12 @@ struct EditAttemptView: View {
             }) {
                 HStack {
                     Image(systemName: "camera.fill")
-                        .foregroundColor(.blue)
+                        .foregroundColor(themeManager.accentColor)
                         .font(.title2)
                     VStack(alignment: .leading, spacing: 2) {
                         Text("Add Photos")
                             .font(.headline)
-                            .foregroundColor(.blue)
+                            .foregroundColor(themeManager.accentColor)
                         Text("\(imageData.count) of 5 photos added")
                             .font(.caption)
                             .foregroundColor(.secondary)
@@ -1121,7 +1128,7 @@ struct EditAttemptView: View {
                     Spacer()
                     if selectedResult == result {
                         Image(systemName: "checkmark.circle.fill")
-                            .foregroundColor(.blue)
+                            .foregroundColor(themeManager.accentColor)
                     } else {
                         Image(systemName: "circle")
                             .foregroundColor(.gray)

ios/Ascently/Views/AddEdit/AddEditGymView.swift

@@ -3,6 +3,7 @@ import SwiftUI
 struct AddEditGymView: View {
     let gymId: UUID?
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @Environment(\.dismiss) private var dismiss
 
     @State private var name = ""
@@ -83,7 +84,7 @@ struct AddEditGymView: View {
                     Spacer()
                     if selectedClimbTypes.contains(climbType) {
                         Image(systemName: "checkmark.circle.fill")
-                            .foregroundColor(.blue)
+                            .foregroundColor(themeManager.accentColor)
                     } else {
                         Image(systemName: "circle")
                             .foregroundColor(.gray)
@@ -115,7 +116,7 @@ struct AddEditGymView: View {
                         Spacer()
                         if selectedDifficultySystems.contains(system) {
                             Image(systemName: "checkmark.circle.fill")
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                         } else {
                             Image(systemName: "circle")
                                 .foregroundColor(.gray)

ios/Ascently/Views/AddEdit/AddEditProblemView.swift

@@ -5,6 +5,7 @@ struct AddEditProblemView: View {
     let problemId: UUID?
     let gymId: UUID?
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @Environment(\.dismiss) private var dismiss
 
     @State private var selectedGym: Gym?
@@ -192,7 +193,7 @@ struct AddEditProblemView: View {
 
                         if selectedGym?.id == gym.id {
                             Image(systemName: "checkmark.circle.fill")
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                         }
                     }
                     .contentShape(Rectangle())
@@ -235,7 +236,7 @@ struct AddEditProblemView: View {
                         Spacer()
                         if selectedClimbType == climbType {
                             Image(systemName: "checkmark.circle.fill")
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                         } else {
                             Image(systemName: "circle")
                                 .foregroundColor(.gray)
@@ -264,7 +265,7 @@ struct AddEditProblemView: View {
                         Spacer()
                         if selectedDifficultySystem == system {
                             Image(systemName: "checkmark.circle.fill")
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                         } else {
                             Image(systemName: "circle")
                                 .foregroundColor(.gray)
@@ -337,7 +338,7 @@ struct AddEditProblemView: View {
                 } else {
                     Text("Selected: \(difficultyGrade)")
                         .font(.caption)
-                        .foregroundColor(.blue)
+                        .foregroundColor(themeManager.accentColor)
                 }
             }
         }
@@ -372,12 +373,12 @@ struct AddEditProblemView: View {
             }) {
                 HStack {
                     Image(systemName: "camera.fill")
-                        .foregroundColor(.blue)
+                        .foregroundColor(themeManager.accentColor)
                         .font(.title2)
                     VStack(alignment: .leading, spacing: 2) {
                         Text("Add Photos")
                             .font(.headline)
-                            .foregroundColor(.blue)
+                            .foregroundColor(themeManager.accentColor)
                         Text("\(imageData.count) of 5 photos added")
                             .font(.caption)
                             .foregroundColor(.secondary)

ios/Ascently/Views/AddEdit/AddEditSessionView.swift

@@ -3,6 +3,7 @@ import SwiftUI
 struct AddEditSessionView: View {
     let sessionId: UUID?
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @Environment(\.dismiss) private var dismiss
 
     @State private var selectedGym: Gym?
@@ -71,7 +72,7 @@ struct AddEditSessionView: View {
 
                         if selectedGym?.id == gym.id {
                             Image(systemName: "checkmark.circle.fill")
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                         }
                     }
                     .contentShape(Rectangle())

ios/Ascently/Views/AnalyticsView.swift

@@ -2,6 +2,7 @@ import SwiftUI
 
 struct AnalyticsView: View {
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
 
     var body: some View {
         NavigationStack {
@@ -25,7 +26,7 @@ struct AnalyticsView: View {
                     if dataManager.isSyncing {
                         HStack(spacing: 2) {
                             ProgressView()
-                                .progressViewStyle(CircularProgressViewStyle(tint: .blue))
+                                .progressViewStyle(CircularProgressViewStyle(tint: themeManager.accentColor))
                                 .scaleEffect(0.6)
                         }
                         .padding(.horizontal, 6)
@@ -47,6 +48,7 @@ struct AnalyticsView: View {
 
 struct OverallStatsSection: View {
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
 
     var body: some View {
         VStack(alignment: .leading, spacing: 16) {
@@ -59,7 +61,7 @@ struct OverallStatsSection: View {
                     title: "Sessions",
                     value: "\(dataManager.completedSessions().count)",
                     icon: "play.fill",
-                    color: .blue
+                    color: themeManager.accentColor
                 )
 
                 StatCard(
@@ -117,13 +119,15 @@ struct StatCard: View {
         .padding()
         .background(
             RoundedRectangle(cornerRadius: 12)
-                .fill(.ultraThinMaterial)
+                .fill(Color(uiColor: .secondarySystemGroupedBackground))
+                .shadow(color: .black.opacity(0.05), radius: 2, x: 0, y: 1)
         )
     }
 }
 
 struct ProgressChartSection: View {
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @State private var selectedSystem: DifficultySystem = .vScale
     @State private var showAllTime: Bool = true
     @State private var cachedGradeCountData: [GradeCount] = []
@@ -178,10 +182,10 @@ struct ProgressChartSection: View {
                             .padding(.vertical, 4)
                             .background(
                                 RoundedRectangle(cornerRadius: 6)
-                                    .fill(showAllTime ? .blue : .clear)
+                                    .fill(showAllTime ? themeManager.accentColor : .clear)
-                                    .stroke(.blue.opacity(0.3), lineWidth: 1)
+                                    .stroke(themeManager.accentColor.opacity(0.3), lineWidth: 1)
                             )
-                            .foregroundColor(showAllTime ? .white : .blue)
+                            .foregroundColor(showAllTime ? themeManager.contrastingTextColor : themeManager.accentColor)
                     }
 
                     Button(action: {
@@ -194,10 +198,10 @@ struct ProgressChartSection: View {
                             .padding(.vertical, 4)
                             .background(
                                 RoundedRectangle(cornerRadius: 6)
-                                    .fill(!showAllTime ? .blue : .clear)
+                                    .fill(!showAllTime ? themeManager.accentColor : .clear)
-                                    .stroke(.blue.opacity(0.3), lineWidth: 1)
+                                    .stroke(themeManager.accentColor.opacity(0.3), lineWidth: 1)
                             )
-                            .foregroundColor(!showAllTime ? .white : .blue)
+                            .foregroundColor(!showAllTime ? themeManager.contrastingTextColor : themeManager.accentColor)
                     }
                 }
 
@@ -215,7 +219,7 @@ struct ProgressChartSection: View {
                                     if selectedSystem == system {
                                         Spacer()
                                         Image(systemName: "checkmark")
-                                            .foregroundColor(.blue)
+                                            .foregroundColor(themeManager.accentColor)
                                     }
                                 }
                             }
@@ -232,10 +236,10 @@ struct ProgressChartSection: View {
                         .padding(.vertical, 6)
                         .background(
                             RoundedRectangle(cornerRadius: 8)
-                                .fill(.blue.opacity(0.1))
+                                .fill(themeManager.accentColor.opacity(0.1))
-                                .stroke(.blue.opacity(0.3), lineWidth: 1)
+                                .stroke(themeManager.accentColor.opacity(0.3), lineWidth: 1)
                         )
-                        .foregroundColor(.blue)
+                        .foregroundColor(themeManager.accentColor)
                     }
                 }
             }
@@ -336,6 +340,7 @@ struct GradeCount {
 
 struct BarChartView: View {
     let data: [GradeCount]
+    @EnvironmentObject var themeManager: ThemeManager
 
     private var sortedData: [GradeCount] {
         data.sorted { $0.gradeNumeric < $1.gradeNumeric }
@@ -367,7 +372,7 @@ struct BarChartView: View {
                             VStack(spacing: 4) {
                                 // Bar
                                 RoundedRectangle(cornerRadius: 4)
-                                    .fill(.blue)
+                                    .fill(themeManager.accentColor)
                                     .frame(
                                         width: barWidth,
                                         height: CGFloat(gradeCount.count) / CGFloat(maxCount)
@@ -377,7 +382,7 @@ struct BarChartView: View {
                                         Text("\(gradeCount.count)")
                                             .font(.caption2)
                                             .fontWeight(.medium)
-                                            .foregroundColor(.white)
+                                            .foregroundColor(themeManager.contrastingTextColor)
                                             .opacity(gradeCount.count > 0 ? 1 : 0)
                                     )
 
@@ -471,6 +476,7 @@ struct FavoriteGymSection: View {
 
 struct RecentActivitySection: View {
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
 
     private var recentSessionsCount: Int {
         dataManager.sessions.count
@@ -485,7 +491,7 @@ struct RecentActivitySection: View {
             HStack {
                 Image(systemName: "clock.fill")
                     .font(.title2)
-                    .foregroundColor(.blue)
+                    .foregroundColor(themeManager.accentColor)
 
                 Text("Recent Activity")
                     .font(.title2)
@@ -499,7 +505,7 @@ struct RecentActivitySection: View {
                     HStack {
                         Image(systemName: "play.circle")
                             .font(.subheadline)
-                            .foregroundColor(.blue)
+                            .foregroundColor(themeManager.accentColor)
 
                         Text("\(recentSessionsCount) sessions")
                             .font(.subheadline)

ios/Ascently/Views/CalendarView.swift

@@ -2,6 +2,7 @@ import SwiftUI
 
 struct CalendarView: View {
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     let sessions: [ClimbSession]
     @Binding var selectedMonth: Date
     @Binding var selectedDate: Date?
@@ -68,7 +69,7 @@ struct CalendarView: View {
                             Image(systemName: "chevron.left")
                                 .font(.title2)
                                 .fontWeight(.semibold)
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                         }
                         .frame(width: 44, height: 44)
 
@@ -84,7 +85,7 @@ struct CalendarView: View {
                             Image(systemName: "chevron.right")
                                 .font(.title2)
                                 .fontWeight(.semibold)
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                         }
                         .frame(width: 44, height: 44)
                     }
@@ -97,10 +98,10 @@ struct CalendarView: View {
                         Text("Today")
                             .font(.subheadline)
                             .fontWeight(.semibold)
-                            .foregroundColor(.white)
+                            .foregroundColor(themeManager.contrastingTextColor)
                             .padding(.horizontal, 20)
                             .padding(.vertical, 8)
-                            .background(Color.blue)
+                            .background(themeManager.accentColor)
                             .clipShape(Capsule())
                     }
                 }
@@ -209,6 +210,7 @@ struct CalendarDayCell: View {
     let isToday: Bool
     let isInCurrentMonth: Bool
     let onTap: () -> Void
+    @EnvironmentObject var themeManager: ThemeManager
 
     var dayNumber: String {
         let formatter = DateFormatter()
@@ -224,9 +226,9 @@ struct CalendarDayCell: View {
                     .fontWeight(sessions.isEmpty ? .regular : .medium)
                     .foregroundColor(
                         isSelected
-                            ? .white
+                            ? themeManager.contrastingTextColor
                             : isToday
-                                ? .blue
+                                ? themeManager.accentColor
                                 : !isInCurrentMonth
                                     ? .secondary.opacity(0.3)
                                     : sessions.isEmpty ? .secondary : .primary
@@ -234,7 +236,7 @@ struct CalendarDayCell: View {
 
                 if !sessions.isEmpty {
                     Circle()
-                        .fill(isSelected ? .white : .blue)
+                        .fill(isSelected ? themeManager.contrastingTextColor : themeManager.accentColor)
                         .frame(width: 4, height: 4)
                 } else {
                     Spacer()
@@ -247,13 +249,13 @@ struct CalendarDayCell: View {
             .background(
                 RoundedRectangle(cornerRadius: 6)
                     .fill(
-                        isSelected ? Color.blue : isToday ? Color.blue.opacity(0.1) : Color.clear
+                        isSelected ? themeManager.accentColor : isToday ? themeManager.accentColor.opacity(0.1) : Color.clear
                     )
             )
             .overlay(
                 RoundedRectangle(cornerRadius: 6)
                     .stroke(
-                        isToday && !isSelected ? Color.blue.opacity(0.3) : Color.clear, lineWidth: 1
+                        isToday && !isSelected ? themeManager.accentColor.opacity(0.3) : Color.clear, lineWidth: 1
                     )
             )
         }

ios/Ascently/Views/Detail/GymDetailView.swift

@@ -3,6 +3,7 @@ import SwiftUI
 struct GymDetailView: View {
     let gymId: UUID
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @Environment(\.dismiss) private var dismiss
     @State private var showingDeleteAlert = false
 
@@ -108,6 +109,7 @@ struct GymDetailView: View {
 
 struct GymHeaderCard: View {
     let gym: Gym
+    @EnvironmentObject var themeManager: ThemeManager
 
     var body: some View {
         VStack(alignment: .leading, spacing: 16) {
@@ -145,9 +147,9 @@ struct GymHeaderCard: View {
                                     .padding(.vertical, 6)
                                     .background(
                                         RoundedRectangle(cornerRadius: 12)
-                                            .fill(.blue.opacity(0.1))
+                                            .fill(themeManager.accentColor.opacity(0.1))
                                     )
-                                    .foregroundColor(.blue)
+                                    .foregroundColor(themeManager.accentColor)
                             }
                         }
                         .padding(.horizontal, 1)
@@ -318,8 +320,8 @@ struct ProblemRowCard: View {
         .padding()
         .background(
             RoundedRectangle(cornerRadius: 12)
-                .fill(.ultraThinMaterial)
+                .fill(Color(uiColor: .secondarySystemGroupedBackground))
-                .stroke(.quaternary, lineWidth: 1)
+                .shadow(color: .black.opacity(0.05), radius: 2, x: 0, y: 1)
         )
     }
 }
@@ -371,8 +373,8 @@ struct SessionRowCard: View {
         .padding()
         .background(
             RoundedRectangle(cornerRadius: 12)
-                .fill(.ultraThinMaterial)
+                .fill(Color(uiColor: .secondarySystemGroupedBackground))
-                .stroke(.quaternary, lineWidth: 1)
+                .shadow(color: .black.opacity(0.05), radius: 2, x: 0, y: 1)
         )
     }
 

ios/Ascently/Views/Detail/ProblemDetailView.swift

@@ -3,6 +3,7 @@ import SwiftUI
 struct ProblemDetailView: View {
     let problemId: UUID
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @Environment(\.dismiss) private var dismiss
     @State private var showingDeleteAlert = false
     @State private var showingImageViewer = false
@@ -125,6 +126,7 @@ struct ProblemDetailView: View {
 struct ProblemHeaderCard: View {
     let problem: Problem
     let gym: Gym
+    @EnvironmentObject var themeManager: ThemeManager
 
     var body: some View {
         VStack(alignment: .leading, spacing: 16) {
@@ -151,7 +153,7 @@ struct ProblemHeaderCard: View {
                     Text(problem.difficulty.grade)
                         .font(.title)
                         .fontWeight(.bold)
-                        .foregroundColor(.blue)
+                        .foregroundColor(themeManager.accentColor)
 
                     Text(problem.climbType.displayName)
                         .font(.subheadline)
@@ -178,9 +180,9 @@ struct ProblemHeaderCard: View {
                                 .padding(.vertical, 4)
                                 .background(
                                     RoundedRectangle(cornerRadius: 8)
-                                        .fill(.blue.opacity(0.1))
+                                        .fill(themeManager.accentColor.opacity(0.1))
                                 )
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                         }
                     }
                     .padding(.horizontal, 1)
@@ -223,6 +225,7 @@ struct ProgressSummaryCard: View {
     let totalAttempts: Int
     let successfulAttempts: Int
     let firstSuccess: (date: Date, result: AttemptResult)?
+    @EnvironmentObject var themeManager: ThemeManager
 
     var body: some View {
         VStack(alignment: .leading, spacing: 16) {
@@ -251,7 +254,7 @@ struct ProgressSummaryCard: View {
                             "\(formatDate(firstSuccess.date)) (\(firstSuccess.result.displayName))"
                         )
                         .font(.subheadline)
-                        .foregroundColor(.blue)
+                        .foregroundColor(themeManager.accentColor)
                     }
                     .padding(.top, 8)
                 }
@@ -396,7 +399,8 @@ struct AttemptHistoryCard: View {
         .padding()
         .background(
             RoundedRectangle(cornerRadius: 12)
-                .fill(.ultraThinMaterial)
+                .fill(Color(uiColor: .secondarySystemGroupedBackground))
+                .shadow(color: .black.opacity(0.05), radius: 2, x: 0, y: 1)
         )
     }
 

ios/Ascently/Views/Detail/SessionDetailView.swift

@@ -4,6 +4,7 @@ import SwiftUI
 struct SessionDetailView: View {
     let sessionId: UUID
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @Environment(\.dismiss) private var dismiss
     @State private var showingDeleteAlert = false
     @State private var showingAddAttempt = false
@@ -35,26 +36,92 @@ struct SessionDetailView: View {
     }
 
     var body: some View {
-        ScrollView {
+        List {
-            LazyVStack(spacing: 20) {
+            if let session = session, let gym = gym {
-                if let session = session, let gym = gym {
+                Section {
                     SessionHeaderCard(
                         session: session, gym: gym, stats: sessionStats)
+                    .listRowInsets(EdgeInsets())
+                    .listRowBackground(Color.clear)
+                    .listRowSeparator(.hidden)
+                    .padding(.bottom, 8)
 
                     SessionStatsCard(stats: sessionStats)
-
+                    .listRowInsets(EdgeInsets())
-                    AttemptsSection(
+                    .listRowBackground(Color.clear)
-                        attemptsWithProblems: attemptsWithProblems,
+                    .listRowSeparator(.hidden)
-                        attemptToDelete: $attemptToDelete,
-                        editingAttempt: $editingAttempt)
-                } else {
-                    Text("Session not found")
-                        .foregroundColor(.secondary)
                 }
-            }
-            .padding()
-        }
 
+                Section {
+                    if attemptsWithProblems.isEmpty {
+                        VStack(spacing: 12) {
+                            Image(systemName: "hand.raised.slash")
+                                .font(.title)
+                                .foregroundColor(.secondary)
+
+                            Text("No attempts yet")
+                                .font(.headline)
+                                .foregroundColor(.secondary)
+
+                            Text("Start attempting problems to see your progress!")
+                                .font(.subheadline)
+                                .foregroundColor(.secondary)
+                                .multilineTextAlignment(.center)
+                        }
+                        .frame(maxWidth: .infinity)
+                        .padding()
+                        .background(
+                            RoundedRectangle(cornerRadius: 16)
+                                .fill(.regularMaterial)
+                        )
+                        .listRowBackground(Color.clear)
+                        .listRowSeparator(.hidden)
+                    } else {
+                        ForEach(attemptsWithProblems.indices, id: \.self) { index in
+                            let (attempt, problem) = attemptsWithProblems[index]
+                            AttemptCard(attempt: attempt, problem: problem)
+                                .listRowBackground(Color.clear)
+                                .listRowSeparator(.hidden)
+                                .listRowInsets(EdgeInsets(top: 6, leading: 16, bottom: 6, trailing: 16))
+                                .swipeActions(edge: .trailing, allowsFullSwipe: true) {
+                                    Button(role: .destructive) {
+                                        let impactFeedback = UIImpactFeedbackGenerator(style: .medium)
+                                        impactFeedback.impactOccurred()
+                                        attemptToDelete = attempt
+                                    } label: {
+                                        Label("Delete", systemImage: "trash")
+                                    }
+                                    .tint(.red)
+                                    .accessibilityLabel("Delete attempt")
+
+                                    Button {
+                                        editingAttempt = attempt
+                                    } label: {
+                                        Label("Edit", systemImage: "pencil")
+                                    }
+                                    .tint(.indigo)
+                                    .accessibilityLabel("Edit attempt")
+                                }
+                                .onTapGesture {
+                                    editingAttempt = attempt
+                                }
+                        }
+                    }
+                } header: {
+                    Text("Attempts (\(attemptsWithProblems.count))")
+                        .font(.title2)
+                        .fontWeight(.bold)
+                        .foregroundColor(.primary)
+                        .textCase(nil)
+                        .padding(.bottom, 8)
+                        .padding(.top, 16)
+                }
+            } else {
+                Text("Session not found")
+                    .foregroundColor(.secondary)
+            }
+        }
+        .listStyle(.plain)
         .navigationTitle("Session Details")
         .navigationBarTitleDisplayMode(.inline)
         .toolbar {
@@ -112,9 +179,9 @@ struct SessionDetailView: View {
                 Button(action: { showingAddAttempt = true }) {
                     Image(systemName: "plus")
                         .font(.title2)
-                        .foregroundColor(.white)
+                        .foregroundColor(.white) // Keep white for contrast on colored button
                         .frame(width: 56, height: 56)
-                        .background(Circle().fill(.blue))
+                        .background(Circle().fill(themeManager.accentColor))
                         .shadow(radius: 4)
                 }
                 .padding()
@@ -162,6 +229,7 @@ struct SessionHeaderCard: View {
     let session: ClimbSession
     let gym: Gym
     let stats: SessionStats
+    @EnvironmentObject var themeManager: ThemeManager
 
     var body: some View {
         VStack(alignment: .leading, spacing: 16) {
@@ -172,7 +240,7 @@ struct SessionHeaderCard: View {
 
                 Text(formatDate(session.date))
                     .font(.title2)
-                    .foregroundColor(.blue)
+                    .foregroundColor(themeManager.accentColor)
 
                 if session.status == .active {
                     if let startTime = session.startTime {
@@ -200,12 +268,12 @@ struct SessionHeaderCard: View {
             // Status indicator
             HStack {
                 Image(systemName: session.status == .active ? "play.fill" : "checkmark.circle.fill")
-                    .foregroundColor(session.status == .active ? .green : .blue)
+                    .foregroundColor(session.status == .active ? .green : themeManager.accentColor)
 
                 Text(session.status == .active ? "In Progress" : "Completed")
                     .font(.subheadline)
                     .fontWeight(.medium)
-                    .foregroundColor(session.status == .active ? .green : .blue)
+                    .foregroundColor(session.status == .active ? .green : themeManager.accentColor)
 
                 Spacer()
             }
@@ -213,7 +281,7 @@ struct SessionHeaderCard: View {
             .padding(.vertical, 6)
             .background(
                 RoundedRectangle(cornerRadius: 8)
-                    .fill((session.status == .active ? Color.green : Color.blue).opacity(0.1))
+                    .fill((session.status == .active ? Color.green : themeManager.accentColor).opacity(0.1))
             )
         }
         .padding()
@@ -264,13 +332,14 @@ struct SessionStatsCard: View {
 struct StatItem: View {
     let label: String
     let value: String
+    @EnvironmentObject var themeManager: ThemeManager
 
     var body: some View {
         VStack(spacing: 4) {
             Text(value)
                 .font(.title2)
                 .fontWeight(.bold)
-                .foregroundColor(.blue)
+                .foregroundColor(themeManager.accentColor)
 
             Text(label)
                 .font(.caption)
@@ -280,85 +349,12 @@ struct StatItem: View {
     }
 }
 
-struct AttemptsSection: View {
+// AttemptsSection removed as it is now integrated into the main List
-    let attemptsWithProblems: [(Attempt, Problem)]
-    @Binding var attemptToDelete: Attempt?
-    @Binding var editingAttempt: Attempt?
-    @EnvironmentObject var dataManager: ClimbingDataManager
-
-    var body: some View {
-        VStack(alignment: .leading, spacing: 16) {
-            Text("Attempts (\(attemptsWithProblems.count))")
-                .font(.title2)
-                .fontWeight(.bold)
-
-            if attemptsWithProblems.isEmpty {
-                VStack(spacing: 12) {
-                    Image(systemName: "hand.raised.slash")
-                        .font(.title)
-                        .foregroundColor(.secondary)
-
-                    Text("No attempts yet")
-                        .font(.headline)
-                        .foregroundColor(.secondary)
-
-                    Text("Start attempting problems to see your progress!")
-                        .font(.subheadline)
-                        .foregroundColor(.secondary)
-                        .multilineTextAlignment(.center)
-                }
-                .frame(maxWidth: .infinity)
-                .padding()
-                .background(
-                    RoundedRectangle(cornerRadius: 16)
-                        .fill(.regularMaterial)
-                )
-            } else {
-                List {
-                    ForEach(attemptsWithProblems.indices, id: \.self) { index in
-                        let (attempt, problem) = attemptsWithProblems[index]
-                        AttemptCard(attempt: attempt, problem: problem)
-                            .listRowBackground(Color.clear)
-                            .listRowSeparator(.hidden)
-                            .listRowInsets(EdgeInsets(top: 6, leading: 0, bottom: 6, trailing: 0))
-                            .swipeActions(edge: .trailing, allowsFullSwipe: true) {
-                                Button(role: .destructive) {
-                                    // Add haptic feedback for delete action
-                                    let impactFeedback = UIImpactFeedbackGenerator(style: .medium)
-                                    impactFeedback.impactOccurred()
-                                    attemptToDelete = attempt
-                                } label: {
-                                    Label("Delete", systemImage: "trash")
-                                }
-                                .accessibilityLabel("Delete attempt")
-                                .accessibilityHint("Removes this attempt from the session")
-
-                                Button {
-                                    editingAttempt = attempt
-                                } label: {
-                                    Label("Edit", systemImage: "pencil")
-                                }
-                                .tint(.blue)
-                                .accessibilityLabel("Edit attempt")
-                                .accessibilityHint("Modify the details of this attempt")
-                            }
-                            .onTapGesture {
-                                editingAttempt = attempt
-                            }
-                    }
-                }
-                .listStyle(.plain)
-                .scrollDisabled(true)
-                .frame(height: CGFloat(attemptsWithProblems.count) * 120)
-            }
-        }
-
-    }
-}
 
 struct AttemptCard: View {
     let attempt: Attempt
     let problem: Problem
+    @EnvironmentObject var themeManager: ThemeManager
 
     var body: some View {
         VStack(alignment: .leading, spacing: 12) {
@@ -370,7 +366,7 @@ struct AttemptCard: View {
 
                     Text("\(problem.difficulty.system.displayName): \(problem.difficulty.grade)")
                         .font(.subheadline)
-                        .foregroundColor(.blue)
+                        .foregroundColor(themeManager.accentColor)
 
                     if let location = problem.location {
                         Text(location)
@@ -399,9 +395,11 @@ struct AttemptCard: View {
             }
         }
         .padding()
-        .background(.regularMaterial)
+        .background(
-        .cornerRadius(12)
+            RoundedRectangle(cornerRadius: 12)
-        .shadow(radius: 2)
+                .fill(Color(uiColor: .secondarySystemGroupedBackground)) // Better contrast in light mode
+                .shadow(color: .black.opacity(0.05), radius: 2, x: 0, y: 1)
+        )
     }
 }
 

ios/Ascently/Views/GymsView.swift

@@ -2,6 +2,7 @@ import SwiftUI
 
 struct GymsView: View {
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @State private var showingAddGym = false
 
     var body: some View {
@@ -19,7 +20,7 @@ struct GymsView: View {
                     if dataManager.isSyncing {
                         HStack(spacing: 2) {
                             ProgressView()
-                                .progressViewStyle(CircularProgressViewStyle(tint: .blue))
+                                .progressViewStyle(CircularProgressViewStyle(tint: themeManager.accentColor))
                                 .scaleEffect(0.6)
                         }
                         .padding(.horizontal, 6)
@@ -48,6 +49,7 @@ struct GymsView: View {
 
 struct GymsList: View {
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @State private var gymToDelete: Gym?
     @State private var gymToEdit: Gym?
 
@@ -62,6 +64,7 @@ struct GymsList: View {
                 } label: {
                     Label("Delete", systemImage: "trash")
                 }
+                .tint(.red)
 
                 Button {
                     gymToEdit = gym
@@ -71,7 +74,7 @@ struct GymsList: View {
                         Text("Edit")
                     }
                 }
-                .tint(.blue)
+                .tint(.indigo)
             }
         }
         .alert("Delete Gym", isPresented: .constant(gymToDelete != nil)) {
@@ -98,6 +101,7 @@ struct GymsList: View {
 struct GymRow: View {
     let gym: Gym
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
 
     private var problemCount: Int {
         dataManager.problems(forGym: gym.id).count
@@ -133,9 +137,9 @@ struct GymRow: View {
                                 .padding(.vertical, 4)
                                 .background(
                                     RoundedRectangle(cornerRadius: 8)
-                                        .fill(.blue.opacity(0.1))
+                                        .fill(themeManager.accentColor.opacity(0.1))
                                 )
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                         }
                     }
                 }

ios/Ascently/Views/ProblemsView.swift

@@ -2,15 +2,22 @@ import SwiftUI
 
 struct ProblemsView: View {
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @State private var showingAddProblem = false
     @State private var selectedClimbType: ClimbType?
     @State private var selectedGym: Gym?
     @State private var searchText = ""
     @State private var showingSearch = false
+    @State private var showingFilters = false
     @FocusState private var isSearchFocused: Bool
 
     @State private var cachedFilteredProblems: [Problem] = []
 
+    // State moved from ProblemsList
+    @State private var problemToDelete: Problem?
+    @State private var problemToEdit: Problem?
+    @State private var animationKey = 0
+
     private func updateFilteredProblems() {
         Task(priority: .userInitiated) {
             let result = await computeFilteredProblems()
@@ -70,61 +77,68 @@ struct ProblemsView: View {
     var body: some View {
         NavigationStack {
             Group {
-                VStack(spacing: 0) {
+                if cachedFilteredProblems.isEmpty {
-                    if showingSearch {
+                    VStack(spacing: 0) {
-                        HStack(spacing: 8) {
+                        headerContent
-                            Image(systemName: "magnifyingglass")
-                                .foregroundColor(.secondary)
-                                .font(.system(size: 16, weight: .medium))
                         
-                            TextField("Search problems...", text: $searchText)
-                                .textFieldStyle(.plain)
-                                .font(.system(size: 16))
-                                .focused($isSearchFocused)
-                                .submitLabel(.search)
-                        }
-                        .padding(.horizontal, 12)
-                        .padding(.vertical, 10)
-                        .background {
-                            if #available(iOS 18.0, *) {
-                                RoundedRectangle(cornerRadius: 12)
-                                    .fill(.regularMaterial)
-                                    .overlay {
-                                        RoundedRectangle(cornerRadius: 12)
-                                            .stroke(.quaternary, lineWidth: 0.5)
-                                    }
-                            } else {
-                                RoundedRectangle(cornerRadius: 10)
-                                    .fill(Color(.systemGray6))
-                                    .overlay {
-                                        RoundedRectangle(cornerRadius: 10)
-                                            .stroke(Color(.systemGray4), lineWidth: 0.5)
-                                    }
-                            }
-                        }
-                        .padding(.horizontal)
-                        .padding(.top, 8)
-                        .animation(.easeInOut(duration: 0.3), value: showingSearch)
-                    }
-
-                    if !dataManager.problems.isEmpty && !showingSearch {
-                        FilterSection(
-                            selectedClimbType: $selectedClimbType,
-                            selectedGym: $selectedGym,
-                            filteredProblems: cachedFilteredProblems
-                        )
-                        .padding()
-                        .background(.regularMaterial)
-                    }
-
-                    if cachedFilteredProblems.isEmpty {
                         EmptyProblemsView(
                             isEmpty: dataManager.problems.isEmpty,
                             isFiltered: !dataManager.problems.isEmpty
                         )
-                    } else {
-                        ProblemsList(problems: cachedFilteredProblems)
                     }
+                } else {
+                    List {
+                        if showingSearch {
+                            Section {
+                                headerContent
+                            }
+                            .listRowInsets(EdgeInsets())
+                            .listRowSeparator(.hidden)
+                            .listRowBackground(Color.clear)
+                        }
+
+                        ForEach(cachedFilteredProblems) { problem in
+                            NavigationLink(destination: ProblemDetailView(problemId: problem.id)) {
+                                ProblemRow(problem: problem)
+                            }
+                            .swipeActions(edge: .trailing, allowsFullSwipe: false) {
+                                Button(role: .destructive) {
+                                    problemToDelete = problem
+                                } label: {
+                                    Label("Delete", systemImage: "trash")
+                                }
+                                .tint(.red)
+
+                                Button {
+                                    withAnimation(.spring(response: 0.5, dampingFraction: 0.8, blendDuration: 0.1))
+                                    {
+                                        let updatedProblem = problem.updated(isActive: !problem.isActive)
+                                        dataManager.updateProblem(updatedProblem)
+                                    }
+                                } label: {
+                                    Label(
+                                        problem.isActive ? "Mark as Reset" : "Mark as Active",
+                                        systemImage: problem.isActive ? "xmark.circle" : "checkmark.circle")
+                                }
+                                .tint(.orange)
+
+                                Button {
+                                    problemToEdit = problem
+                                } label: {
+                                    HStack {
+                                        Image(systemName: "pencil")
+                                        Text("Edit")
+                                    }
+                                }
+                                .tint(.indigo)
+                            }
+                        }
+                    }
+                    .listStyle(.plain)
+                    .animation(
+                        .spring(response: 0.5, dampingFraction: 0.8, blendDuration: 0.1),
+                        value: animationKey
+                    )
                 }
             }
             .navigationTitle("Problems")
@@ -134,7 +148,7 @@ struct ProblemsView: View {
                     if dataManager.isSyncing {
                         HStack(spacing: 2) {
                             ProgressView()
-                                .progressViewStyle(CircularProgressViewStyle(tint: .blue))
+                                .progressViewStyle(CircularProgressViewStyle(tint: themeManager.accentColor))
                                 .scaleEffect(0.6)
                         }
                         .padding(.horizontal, 6)
@@ -162,7 +176,15 @@ struct ProblemsView: View {
                     }) {
                         Image(systemName: showingSearch ? "xmark.circle.fill" : "magnifyingglass")
                             .font(.system(size: 16, weight: .medium))
-                            .foregroundColor(showingSearch ? .secondary : .blue)
+                            .foregroundColor(showingSearch ? .secondary : themeManager.accentColor)
+                    }
+
+                    Button(action: {
+                        showingFilters = true
+                    }) {
+                        Image(systemName: (selectedClimbType != nil || selectedGym != nil) ? "line.3.horizontal.decrease.circle.fill" : "line.3.horizontal.decrease.circle")
+                            .font(.system(size: 16, weight: .medium))
+                            .foregroundColor(themeManager.accentColor)
                     }
 
                     if !dataManager.gyms.isEmpty {
@@ -175,6 +197,32 @@ struct ProblemsView: View {
             .sheet(isPresented: $showingAddProblem) {
                 AddEditProblemView()
             }
+            .sheet(isPresented: $showingFilters) {
+                FilterSheet(
+                    selectedClimbType: $selectedClimbType,
+                    selectedGym: $selectedGym,
+                    filteredProblems: cachedFilteredProblems
+                )
+                .presentationDetents([.height(320)])
+            }
+            .sheet(item: $problemToEdit) { problem in
+                AddEditProblemView(problemId: problem.id)
+            }
+            .alert("Delete Problem", isPresented: .constant(problemToDelete != nil)) {
+                Button("Cancel", role: .cancel) {
+                    problemToDelete = nil
+                }
+                Button("Delete", role: .destructive) {
+                    if let problem = problemToDelete {
+                        dataManager.deleteProblem(problem)
+                        problemToDelete = nil
+                    }
+                }
+            } message: {
+                Text(
+                    "Are you sure you want to delete this problem? This will also delete all associated attempts."
+                )
+            }
         }
         .onAppear {
             updateFilteredProblems()
@@ -191,11 +239,57 @@ struct ProblemsView: View {
         .onChange(of: selectedGym) {
             updateFilteredProblems()
         }
+        .onChange(of: cachedFilteredProblems) {
+            animationKey += 1
+        }
+    }
+
+    @ViewBuilder
+    private var headerContent: some View {
+        VStack(spacing: 0) {
+            if showingSearch {
+                HStack(spacing: 8) {
+                    Image(systemName: "magnifyingglass")
+                        .foregroundColor(.secondary)
+                        .font(.system(size: 16, weight: .medium))
+
+                    TextField("Search problems...", text: $searchText)
+                        .textFieldStyle(.plain)
+                        .font(.system(size: 16))
+                        .focused($isSearchFocused)
+                        .submitLabel(.search)
+                }
+                .padding(.horizontal, 12)
+                .padding(.vertical, 10)
+                .background {
+                    if #available(iOS 18.0, *) {
+                        RoundedRectangle(cornerRadius: 12)
+                            .fill(.regularMaterial)
+                            .overlay {
+                                RoundedRectangle(cornerRadius: 12)
+                                    .stroke(.quaternary, lineWidth: 0.5)
+                            }
+                    } else {
+                        RoundedRectangle(cornerRadius: 10)
+                            .fill(Color(.systemGray6))
+                            .overlay {
+                                RoundedRectangle(cornerRadius: 10)
+                                    .stroke(Color(.systemGray4), lineWidth: 0.5)
+                            }
+                    }
+                }
+                .padding(.horizontal)
+                .padding(.top, 8)
+                .padding(.bottom, 8)
+                .animation(.easeInOut(duration: 0.3), value: showingSearch)
+            }
+        }
     }
 }
 
 struct FilterSection: View {
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @Binding var selectedClimbType: ClimbType?
     @Binding var selectedGym: Gym?
     let filteredProblems: [Problem]
@@ -278,6 +372,7 @@ struct FilterChip: View {
     let title: String
     let isSelected: Bool
     let action: () -> Void
+    @EnvironmentObject var themeManager: ThemeManager
 
     var body: some View {
         Button(action: action) {
@@ -288,93 +383,21 @@ struct FilterChip: View {
                 .padding(.vertical, 6)
                 .background(
                     RoundedRectangle(cornerRadius: 16)
-                        .fill(isSelected ? .blue : .clear)
+                        .fill(isSelected ? themeManager.accentColor : .clear)
-                        .stroke(.blue, lineWidth: 1)
+                        .stroke(themeManager.accentColor, lineWidth: 1)
                 )
-                .foregroundColor(isSelected ? .white : .blue)
+                .foregroundColor(isSelected ? themeManager.contrastingTextColor : themeManager.accentColor)
         }
         .buttonStyle(.plain)
     }
 }
 
-struct ProblemsList: View {
-    let problems: [Problem]
-    @EnvironmentObject var dataManager: ClimbingDataManager
-    @State private var problemToDelete: Problem?
-    @State private var problemToEdit: Problem?
-    @State private var animationKey = 0
 
-    var body: some View {
-        List(problems, id: \.id) { problem in
-            NavigationLink(destination: ProblemDetailView(problemId: problem.id)) {
-                ProblemRow(problem: problem)
-            }
-            .swipeActions(edge: .trailing, allowsFullSwipe: false) {
-                Button(role: .destructive) {
-                    problemToDelete = problem
-                } label: {
-                    Label("Delete", systemImage: "trash")
-                }
-
-                Button {
-                    withAnimation(.spring(response: 0.5, dampingFraction: 0.8, blendDuration: 0.1))
-                    {
-                        let updatedProblem = problem.updated(isActive: !problem.isActive)
-                        dataManager.updateProblem(updatedProblem)
-                    }
-                } label: {
-                    Label(
-                        problem.isActive ? "Mark as Reset" : "Mark as Active",
-                        systemImage: problem.isActive ? "xmark.circle" : "checkmark.circle")
-                }
-                .tint(.orange)
-
-                Button {
-                    problemToEdit = problem
-                } label: {
-                    HStack {
-                        Image(systemName: "pencil")
-                        Text("Edit")
-                    }
-                }
-                .tint(.blue)
-            }
-        }
-        .animation(
-            .spring(response: 0.5, dampingFraction: 0.8, blendDuration: 0.1),
-            value: animationKey
-        )
-        .onChange(of: problems) {
-            animationKey += 1
-        }
-        .listStyle(.plain)
-        .scrollContentBackground(.hidden)
-        .scrollIndicators(.hidden)
-        .clipped()
-        .alert("Delete Problem", isPresented: .constant(problemToDelete != nil)) {
-            Button("Cancel", role: .cancel) {
-                problemToDelete = nil
-            }
-            Button("Delete", role: .destructive) {
-                if let problem = problemToDelete {
-                    dataManager.deleteProblem(problem)
-                    problemToDelete = nil
-                }
-            }
-        } message: {
-            Text(
-                "Are you sure you want to delete this problem? This will also delete all associated attempts."
-            )
-        }
-        .sheet(item: $problemToEdit) { problem in
-            AddEditProblemView(problemId: problem.id)
-        }
-    }
-}
 
 struct ProblemRow: View {
     let problem: Problem
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
 
     private var gym: Gym? {
         dataManager.gym(withId: problem.gymId)
@@ -407,7 +430,7 @@ struct ProblemRow: View {
                         if !problem.imagePaths.isEmpty {
                             Image(systemName: "photo")
                                 .font(.system(size: 14, weight: .medium))
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                         }
 
                         if isCompleted {
@@ -419,7 +442,7 @@ struct ProblemRow: View {
                         Text(problem.difficulty.grade)
                             .font(.title2)
                             .fontWeight(.bold)
-                            .foregroundColor(.blue)
+                            .foregroundColor(themeManager.accentColor)
                     }
 
                     Text(problem.climbType.displayName)
@@ -444,9 +467,9 @@ struct ProblemRow: View {
                                 .padding(.vertical, 2)
                                 .background(
                                     RoundedRectangle(cornerRadius: 4)
-                                        .fill(.blue.opacity(0.1))
+                                        .fill(themeManager.accentColor.opacity(0.1))
                                 )
-                                .foregroundColor(.blue)
+                                .foregroundColor(themeManager.accentColor)
                         }
                     }
                 }
@@ -523,6 +546,71 @@ struct EmptyProblemsView: View {
     }
 }
 
+struct FilterSheet: View {
+    @Binding var selectedClimbType: ClimbType?
+    @Binding var selectedGym: Gym?
+    let filteredProblems: [Problem]
+    @Environment(\.dismiss) var dismiss
+    @EnvironmentObject var themeManager: ThemeManager
+    
+    var body: some View {
+        NavigationStack {
+            ScrollView {
+                FilterSection(
+                    selectedClimbType: $selectedClimbType,
+                    selectedGym: $selectedGym,
+                    filteredProblems: filteredProblems
+                )
+                .padding()
+            }
+            .navigationTitle("Filters")
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .navigationBarTrailing) {
+                    Button(action: {
+                        dismiss()
+                    }) {
+                        Text("Done")
+                            .font(.subheadline)
+                            .fontWeight(.semibold)
+                            .padding(.horizontal, 16)
+                            .padding(.vertical, 6)
+                            .background(.ultraThinMaterial)
+                            .clipShape(Capsule())
+                            .overlay(
+                                Capsule()
+                                    .stroke(Color.secondary.opacity(0.2), lineWidth: 0.5)
+                            )
+                            .foregroundColor(themeManager.accentColor)
+                    }
+                }
+                
+                ToolbarItem(placement: .navigationBarLeading) {
+                    if selectedClimbType != nil || selectedGym != nil {
+                        Button(action: {
+                            selectedClimbType = nil
+                            selectedGym = nil
+                        }) {
+                            Text("Reset")
+                                .font(.subheadline)
+                                .fontWeight(.medium)
+                                .padding(.horizontal, 16)
+                                .padding(.vertical, 6)
+                                .background(.ultraThinMaterial)
+                                .clipShape(Capsule())
+                                .overlay(
+                                    Capsule()
+                                        .stroke(Color.secondary.opacity(0.2), lineWidth: 0.5)
+                                )
+                                .foregroundColor(.red)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
 #Preview {
     ProblemsView()
         .environmentObject(ClimbingDataManager.preview)

ios/Ascently/Views/SessionsView.swift

@@ -142,6 +142,7 @@ struct SessionsList: View {
                             } label: {
                                 Label("Delete", systemImage: "trash")
                             }
+                            .tint(.red)
                         }
                     }
                 } header: {

ios/Ascently/Views/SettingsView.swift

@@ -9,6 +9,7 @@ enum SheetType {
 
 struct SettingsView: View {
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @State private var activeSheet: SheetType?
 
     var body: some View {
@@ -20,6 +21,8 @@ struct SettingsView: View {
                 HealthKitSection()
                     .environmentObject(dataManager.healthKitService)
 
+                AppearanceSection()
+
                 DataManagementSection(
                     activeSheet: $activeSheet
                 )
@@ -75,8 +78,90 @@ extension SheetType: Identifiable {
     }
 }
 
+struct AppearanceSection: View {
+    @EnvironmentObject var themeManager: ThemeManager
+    
+    let columns = [
+        GridItem(.adaptive(minimum: 44))
+    ]
+    
+    var body: some View {
+        Section("Appearance") {
+            VStack(alignment: .leading, spacing: 12) {
+                Text("Accent Color")
+                    .font(.caption)
+                    .foregroundColor(.secondary)
+                    .textCase(.uppercase)
+                
+                LazyVGrid(columns: columns, spacing: 12) {
+                    ForEach(ThemeManager.presetColors, id: \.self) { color in
+                        Circle()
+                            .fill(color)
+                            .frame(width: 44, height: 44)
+                            .overlay(
+                                ZStack {
+                                    if isSelected(color) {
+                                        Image(systemName: "checkmark")
+                                            .font(.headline)
+                                            .foregroundColor(.white)
+                                            .shadow(radius: 1)
+                                    }
+                                }
+                            )
+                            .onTapGesture {
+                                withAnimation {
+                                    themeManager.accentColor = color
+                                }
+                            }
+                            .accessibilityLabel(colorDescription(for: color))
+                            .accessibilityAddTraits(isSelected(color) ? .isSelected : [])
+                    }
+                }
+                .padding(.vertical, 8)
+            }
+            
+            if !isSelected(.blue) {
+                Button("Reset to Default") {
+                    withAnimation {
+                        themeManager.resetToDefault()
+                    }
+                }
+                .foregroundColor(.red)
+            }
+        }
+    }
+    
+    private func isSelected(_ color: Color) -> Bool {
+        // Compare using UIColor to handle different Color initializers
+        let selectedUIColor = UIColor(themeManager.accentColor)
+        let targetUIColor = UIColor(color)
+        
+        // Simple equality check might fail for some system colors, so we check components if needed
+        // But usually UIColor equality is robust enough for system colors
+        return selectedUIColor == targetUIColor
+    }
+    
+    private func colorDescription(for color: Color) -> String {
+        switch color {
+        case .blue: return "Blue"
+        case .purple: return "Purple"
+        case .pink: return "Pink"
+        case .red: return "Red"
+        case .orange: return "Orange"
+        case .green: return "Green"
+        case .teal: return "Teal"
+        case .indigo: return "Indigo"
+        case .mint: return "Mint"
+        case Color(uiColor: .systemBrown): return "Brown"
+        case Color(uiColor: .systemCyan): return "Cyan"
+        default: return "Color"
+        }
+    }
+}
+
 struct DataManagementSection: View {
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @Binding var activeSheet: SheetType?
     @State private var showingResetAlert = false
     @State private var isExporting = false
@@ -100,7 +185,7 @@ struct DataManagementSection: View {
                             .foregroundColor(.secondary)
                     } else {
                         Image(systemName: "square.and.arrow.up")
-                            .foregroundColor(.blue)
+                            .foregroundColor(themeManager.accentColor)
                         Text("Export Data")
                     }
                     Spacer()
@@ -253,6 +338,7 @@ struct DataManagementSection: View {
 }
 
 struct AppInfoSection: View {
+    @EnvironmentObject var themeManager: ThemeManager
     private var appVersion: String {
         Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "Unknown"
     }
@@ -265,7 +351,7 @@ struct AppInfoSection: View {
         Section("App Information") {
             HStack {
                 Image(systemName: "info.circle")
-                    .foregroundColor(.blue)
+                    .foregroundColor(themeManager.accentColor)
                 Text("Version")
                 Spacer()
                 Text("\(appVersion) (\(buildNumber))")
@@ -278,6 +364,7 @@ struct AppInfoSection: View {
 struct ExportDataView: View {
     let data: Data
     @Environment(\.dismiss) private var dismiss
+    @EnvironmentObject var themeManager: ThemeManager
     @State private var tempFileURL: URL?
     @State private var isCreatingFile = true
 
@@ -291,7 +378,7 @@ struct ExportDataView: View {
                     VStack(spacing: 20) {
                         ProgressView()
                             .scaleEffect(1.5)
-                            .tint(.blue)
+                            .tint(themeManager.accentColor)
 
                         Text("Preparing Your Export")
                             .font(.title2)
@@ -330,12 +417,12 @@ struct ExportDataView: View {
                             ) {
                                 Label("Share Data", systemImage: "square.and.arrow.up")
                                     .font(.headline)
-                                    .foregroundColor(.white)
+                                    .foregroundColor(themeManager.contrastingTextColor)
                                     .frame(maxWidth: .infinity)
                                     .padding()
                                     .background(
                                         RoundedRectangle(cornerRadius: 12)
-                                            .fill(.blue)
+                                            .fill(themeManager.accentColor)
                                     )
                             }
                             .padding(.horizontal)
@@ -430,6 +517,7 @@ struct ExportDataView: View {
 struct SyncSection: View {
     @EnvironmentObject var syncService: SyncService
     @EnvironmentObject var dataManager: ClimbingDataManager
+    @EnvironmentObject var themeManager: ThemeManager
     @State private var showingSyncSettings = false
     @State private var showingDisconnectAlert = false
 
@@ -475,7 +563,7 @@ struct SyncSection: View {
             }) {
                 HStack {
                     Image(systemName: "gear")
-                        .foregroundColor(.blue)
+                        .foregroundColor(themeManager.accentColor)
                     Text("Configure Server")
                     Spacer()
                     Image(systemName: "chevron.right")
@@ -594,6 +682,7 @@ struct SyncSection: View {
 
 struct SyncSettingsView: View {
     @EnvironmentObject var syncService: SyncService
+    @EnvironmentObject var themeManager: ThemeManager
     @Environment(\.dismiss) private var dismiss
     @State private var serverURL: String = ""
     @State private var authToken: String = ""
@@ -644,7 +733,7 @@ struct SyncSettingsView: View {
                                     .foregroundColor(.secondary)
                             } else {
                                 Image(systemName: "network")
-                                    .foregroundColor(.blue)
+                                    .foregroundColor(themeManager.accentColor)
                                 Text("Test Connection")
                                 Spacer()
                                 if syncService.isConnected {
@@ -705,6 +794,12 @@ struct SyncSettingsView: View {
 
                         syncService.serverURL = newURL
                         syncService.authToken = newToken
+                        
+                        // Ensure provider type is set to server
+                        if syncService.providerType != .server {
+                            syncService.providerType = .server
+                        }
+                        
                         dismiss()
                     }
                     .fontWeight(.semibold)
@@ -745,6 +840,13 @@ struct SyncSettingsView: View {
 
         Task {
             do {
+                // Ensure we are using the server provider
+                await MainActor.run {
+                    if syncService.providerType != .server {
+                        syncService.providerType = .server
+                    }
+                }
+
                 // Temporarily set the values for testing
                 syncService.serverURL = testURL
                 syncService.authToken = testToken