Implement login/logout functionality

app/src/main/java/gq/kirmanak/mealient/data/auth/AuthRepo.kt

@@ -4,13 +4,13 @@ import kotlinx.coroutines.flow.Flow
 
 interface AuthRepo {
 
+    val isAuthorizedFlow: Flow<Boolean>
+
     suspend fun authenticate(username: String, password: String)
 
     suspend fun getAuthHeader(): String?
 
     suspend fun requireAuthHeader(): String
 
-    fun authenticationStatuses(): Flow<Boolean>
-
     suspend fun logout()
 }

app/src/main/java/gq/kirmanak/mealient/data/auth/AuthStorage.kt

@@ -3,11 +3,12 @@ package gq.kirmanak.mealient.data.auth
 import kotlinx.coroutines.flow.Flow
 
 interface AuthStorage {
+
+    val authHeaderFlow: Flow<String?>
+
     suspend fun storeAuthData(authHeader: String)
 
     suspend fun getAuthHeader(): String?
 
-    fun authHeaderObservable(): Flow<String?>
-
     suspend fun clearAuthData()
 }

app/src/main/java/gq/kirmanak/mealient/data/auth/impl/AuthRepoImpl.kt

@@ -15,6 +15,9 @@ class AuthRepoImpl @Inject constructor(
     private val storage: AuthStorage,
 ) : AuthRepo {
 
+    override val isAuthorizedFlow: Flow<Boolean>
+        get() = storage.authHeaderFlow.map { it != null }
+
     override suspend fun authenticate(username: String, password: String) {
         Timber.v("authenticate() called with: username = $username, password = $password")
         val accessToken = dataSource.authenticate(username, password)
@@ -27,11 +30,6 @@ class AuthRepoImpl @Inject constructor(
     override suspend fun requireAuthHeader(): String =
         checkNotNull(getAuthHeader()) { "Auth header is null when it was required" }
 
-    override fun authenticationStatuses(): Flow<Boolean> {
-        Timber.v("authenticationStatuses() called")
-        return storage.authHeaderObservable().map { it != null }
-    }
-
     override suspend fun logout() {
         Timber.v("logout() called")
         storage.clearAuthData()

app/src/main/java/gq/kirmanak/mealient/data/auth/impl/AuthStorageImpl.kt

@@ -1,5 +1,6 @@
 package gq.kirmanak.mealient.data.auth.impl
 
+import androidx.datastore.preferences.core.Preferences
 import gq.kirmanak.mealient.data.auth.AuthStorage
 import gq.kirmanak.mealient.data.storage.PreferencesStorage
 import kotlinx.coroutines.flow.Flow
@@ -12,7 +13,10 @@ class AuthStorageImpl @Inject constructor(
     private val preferencesStorage: PreferencesStorage,
 ) : AuthStorage {
 
-    private val authHeaderKey by preferencesStorage::authHeaderKey
+    private val authHeaderKey: Preferences.Key<String>
+        get() = preferencesStorage.authHeaderKey
+    override val authHeaderFlow: Flow<String?>
+        get() = preferencesStorage.valueUpdates(authHeaderKey)
 
     override suspend fun storeAuthData(authHeader: String) {
         Timber.v("storeAuthData() called with: authHeader = $authHeader")
@@ -26,11 +30,6 @@ class AuthStorageImpl @Inject constructor(
         return token
     }
 
-    override fun authHeaderObservable(): Flow<String?> {
-        Timber.v("authHeaderObservable() called")
-        return preferencesStorage.valueUpdates(authHeaderKey)
-    }
-
     override suspend fun clearAuthData() {
         Timber.v("clearAuthData() called")
         preferencesStorage.removeValues(authHeaderKey)