Extract Base URL from authentication

app/src/main/java/gq/kirmanak/mealient/data/baseurl/BaseURLStorage.kt

@@ -0,0 +1,10 @@
+package gq.kirmanak.mealient.data.baseurl
+
+interface BaseURLStorage {
+
+    suspend fun getBaseURL(): String?
+
+    suspend fun requireBaseURL(): String
+
+    suspend fun storeBaseURL(baseURL: String)
+}

app/src/main/java/gq/kirmanak/mealient/data/baseurl/BaseURLStorageImpl.kt

@@ -0,0 +1,23 @@
+package gq.kirmanak.mealient.data.baseurl
+
+import gq.kirmanak.mealient.data.storage.PreferencesStorage
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class BaseURLStorageImpl @Inject constructor(
+    private val preferencesStorage: PreferencesStorage,
+) : BaseURLStorage {
+
+    private val baseUrlKey by preferencesStorage::baseUrlKey
+
+    override suspend fun getBaseURL(): String? = preferencesStorage.getValue(baseUrlKey)
+
+    override suspend fun requireBaseURL(): String = checkNotNull(getBaseURL()) {
+        "Base URL was null when it was required"
+    }
+
+    override suspend fun storeBaseURL(baseURL: String) {
+        preferencesStorage.storeValues(Pair(baseUrlKey, baseURL))
+    }
+}

app/src/main/java/gq/kirmanak/mealient/data/baseurl/VersionDataSource.kt

@@ -0,0 +1,9 @@
+package gq.kirmanak.mealient.data.baseurl
+
+import gq.kirmanak.mealient.data.network.NetworkError
+
+interface VersionDataSource {
+
+    @Throws(NetworkError::class)
+    suspend fun getVersionInfo(baseUrl: String): VersionInfo
+}

app/src/main/java/gq/kirmanak/mealient/data/baseurl/VersionDataSourceImpl.kt

@@ -0,0 +1,39 @@
+package gq.kirmanak.mealient.data.baseurl
+
+import gq.kirmanak.mealient.data.network.NetworkError
+import gq.kirmanak.mealient.data.network.ServiceFactory
+import gq.kirmanak.mealient.extensions.versionInfo
+import kotlinx.serialization.SerializationException
+import retrofit2.HttpException
+import timber.log.Timber
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class VersionDataSourceImpl @Inject constructor(
+    private val serviceFactory: ServiceFactory<VersionService>,
+) : VersionDataSource {
+
+    override suspend fun getVersionInfo(baseUrl: String): VersionInfo {
+        Timber.v("getVersionInfo() called with: baseUrl = $baseUrl")
+
+        val service = try {
+            serviceFactory.provideService(baseUrl)
+        } catch (e: Exception) {
+            Timber.e(e, "getVersionInfo: can't create service")
+            throw NetworkError.MalformedUrl(e)
+        }
+
+        val response = try {
+            service.getVersion()
+        } catch (e: Exception) {
+            Timber.e(e, "getVersionInfo: can't request version")
+            when (e) {
+                is HttpException, is SerializationException -> throw NetworkError.NotMealie(e)
+                else -> throw NetworkError.NoServerConnection(e)
+            }
+        }
+
+        return response.versionInfo()
+    }
+}

app/src/main/java/gq/kirmanak/mealient/data/baseurl/VersionInfo.kt

@@ -0,0 +1,7 @@
+package gq.kirmanak.mealient.data.baseurl
+
+data class VersionInfo(
+    val production: Boolean,
+    val version: String,
+    val demoStatus: Boolean,
+)

app/src/main/java/gq/kirmanak/mealient/data/baseurl/VersionResponse.kt

@@ -0,0 +1,14 @@
+package gq.kirmanak.mealient.data.baseurl
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class VersionResponse(
+    @SerialName("production")
+    val production: Boolean,
+    @SerialName("version")
+    val version: String,
+    @SerialName("demoStatus")
+    val demoStatus: Boolean,
+)

app/src/main/java/gq/kirmanak/mealient/data/baseurl/VersionService.kt

@@ -0,0 +1,8 @@
+package gq.kirmanak.mealient.data.baseurl
+
+import retrofit2.http.GET
+
+interface VersionService {
+    @GET("api/debug/version")
+    suspend fun getVersion(): VersionResponse
+}