Add support for temporary migrations

app/src/main/java/org/unifiedpush/distributor/sunup/AppStore.kt

@@ -20,6 +20,22 @@ class AppStore(context: Context) : Store(context, PREF_NAME) {
             .putOrRemove(PREF_API_URL, value)
             .apply()
 
+    var fallbackIntroShown: Boolean
+        get() = sharedPreferences
+            .getBoolean(PREF_FALLBACK_INTRO_SHOWN, false)
+        set(value) = sharedPreferences
+            .edit()
+            .putBoolean(PREF_FALLBACK_INTRO_SHOWN, value)
+            .apply()
+
+    var fallbackService: String?
+        get() = sharedPreferences
+            .getString(PREF_FALLBACK_SERVICE, null)
+        set(value) = sharedPreferences
+            .edit()
+            .putOrRemove(PREF_FALLBACK_SERVICE, value)
+            .apply()
+
     /**
      * Show toasts when a new app is registered or an error occurred
      */
@@ -39,6 +55,8 @@ class AppStore(context: Context) : Store(context, PREF_NAME) {
         internal const val PREF_NAME = "Sunup"
         private const val PREF_UAID = "uaid"
         private const val PREF_API_URL = "api_url"
+        private const val PREF_FALLBACK_INTRO_SHOWN = "fallback_intro_shown"
+        private const val PREF_FALLBACK_SERVICE = "fallback_service"
         private const val PREF_SHOW_TOASTS = "show_toasts"
     }
 }

app/src/main/java/org/unifiedpush/distributor/sunup/activities/AppAction.kt

@@ -20,6 +20,9 @@ class AppAction(private val action: Action) {
         class NewPushServer(val url: String) : Action()
         class ShowToasts(val enable: Boolean) : Action()
         class DeleteRegistration(val registrations: List<String>) : Action()
+        data object FallbackIntroShown : Action()
+        class FallbackDistribSelected(val distributor: String?) : Action()
+        class MigrateToDistrib(val distributor: String) : Action()
     }
 
     fun handle(context: Context) {
@@ -28,6 +31,9 @@ class AppAction(private val action: Action) {
             is Action.NewPushServer -> newPushServer(context, action)
             is Action.ShowToasts -> showToasts(context, action)
             is Action.DeleteRegistration -> deleteRegistration(context, action)
+            is Action.FallbackIntroShown -> fallbackIntroShown(context)
+            is Action.FallbackDistribSelected -> fallbackDistribSelected(context, action)
+            is Action.MigrateToDistrib -> migrateToDistrib(context, action)
         }
     }
 
@@ -54,6 +60,33 @@ class AppAction(private val action: Action) {
             Distributor.deleteApp(context, it)
         }
     }
+
+    private fun fallbackIntroShown(context: Context) {
+        AppStore(context).fallbackIntroShown = true
+    }
+
+    /**
+     * Save fallback service
+     *
+     * If fallback is disabled and we have already send TEMP_UNAVAILABLE:
+     * we send the endpoint again
+     */
+    private fun fallbackDistribSelected(context: Context, action: Action.FallbackDistribSelected) {
+        AppStore(context).fallbackService = action.distributor
+        action.distributor?.let {
+            // Fallback is set
+            if (SourceManager.shouldSendFallback) {
+                Distributor.sendTempFallbackToAll(context, it)
+            }
+        } ?: run {
+            // Fallback is disabled
+            Distributor.sendEndpointToAll(context)
+        }
+    }
+
+    private fun migrateToDistrib(context: Context, action: Action.MigrateToDistrib) {
+        Distributor.migrateAll(context, action.distributor)
+    }
 }
 
 fun ViewModel.publishAction(action: AppAction) {

app/src/main/java/org/unifiedpush/distributor/sunup/activities/AppBarViewModel.kt

@@ -13,10 +13,20 @@ import org.unifiedpush.distributor.sunup.BuildConfig
 import org.unifiedpush.distributor.sunup.activities.ui.AppBarUiState
 import org.unifiedpush.distributor.sunup.utils.TAG
 
-class AppBarViewModel(appBarUiState: AppBarUiState) : ViewModel() {
+/**
+ * Controls AppBar and dialogs open from the app bar
+ *
+ * The AppBar controls the MigrationView model because it provides
+ * the migration entry
+ */
+class AppBarViewModel(
+    appBarUiState: AppBarUiState,
+    val migrationViewModel: DistribMigrationViewModel
+) : ViewModel() {
 
     constructor(context: Context) : this(
-        AppBarUiState.from(context)
+        AppBarUiState.from(context),
+        DistribMigrationViewModel(context)
     )
 
     var state by mutableStateOf(appBarUiState)

app/src/main/java/org/unifiedpush/distributor/sunup/activities/ApplicationRowState.kt

@@ -22,4 +22,4 @@ fun Context.applicationRowState(packageName: String, description: String? = null
         packageName = packageName,
         description = description
     )
-}
+}

app/src/main/java/org/unifiedpush/distributor/sunup/activities/DistribMigrationViewModel.kt

@@ -0,0 +1,47 @@
+package org.unifiedpush.distributor.sunup.activities
+
+import android.content.Context
+import org.unifiedpush.android.distributor.ui.compose.DistribMigrationViewModel as UPDistribMigrationViewModel
+import org.unifiedpush.android.distributor.ui.compose.state.DistribMigrationState
+import org.unifiedpush.distributor.sunup.AppStore
+import org.unifiedpush.distributor.utils.listOtherDistributors
+
+class DistribMigrationViewModel(state: DistribMigrationState) : UPDistribMigrationViewModel(state) {
+    constructor(context: Context) : this(
+        stateFrom(context)
+    )
+
+    override fun onFallbackDistribSelected(distributor: String?) {
+        publishAction(
+            AppAction(AppAction.Action.FallbackDistribSelected(distributor))
+        )
+    }
+
+    override fun onMigrationDistributorSelected(distributor: String) {
+        publishAction(
+            AppAction(AppAction.Action.MigrateToDistrib(distributor))
+        )
+    }
+
+    override fun onFallbackIntroShown() {
+        publishAction(
+            AppAction(AppAction.Action.FallbackIntroShown)
+        )
+    }
+
+    companion object {
+        fun stateFrom(context: Context): DistribMigrationState {
+            val store = AppStore(context)
+            val fallbackDistrib = store.fallbackService
+            val distributors = context.listOtherDistributors().map { packageName ->
+                context.applicationRowState(packageName).copy(
+                    selected = fallbackDistrib == packageName
+                )
+            }.toSet()
+            return DistribMigrationState(
+                distributors,
+                store.fallbackIntroShown
+            )
+        }
+    }
+}

app/src/main/java/org/unifiedpush/distributor/sunup/activities/MainViewModel.kt

@@ -41,6 +41,7 @@ class MainViewModel(
         viewModelScope.launch {
             mainUiState = mainUiState.copy(showPermissionDialog = false)
         }
+        appBarViewModel.migrationViewModel.mayShowFallbackIntro()
     }
     fun refreshRegistrations(context: Context) {
         viewModelScope.launch {

app/src/main/java/org/unifiedpush/distributor/sunup/activities/RegistrationsViewModel.kt

@@ -8,25 +8,17 @@ import org.unifiedpush.distributor.sunup.DatabaseFactory
 
 fun getRegistrationListState(context: Context): RegistrationListState {
     return RegistrationListState(
-        list = emptyList<RegistrationState?>()
+        list = DatabaseFactory.getDb(context).listApps().map { app ->
-            .toMutableList().also { appList ->
+            getRegistrationState(context, app)
-                DatabaseFactory.getDb(context).let { db ->
+        }
-                    db.listTokens().forEach {
-                        appList.add(
-                            getRegistrationState(context, db, it)
-                        )
-                    }
-                }
-            }.filterNotNull()
     )
 }
 
-fun getRegistrationState(context: Context, db: Database, token: String): RegistrationState? {
+fun getRegistrationState(context: Context, app: Database.App): RegistrationState {
-    val app = db.getAppFromCoToken(token) ?: return null
+    return RegistrationState(
-   return RegistrationState(
         app = context.applicationRowState(app.packageName, app.description),
         msgCount = app.msgCount,
-        token = token,
+        token = app.connectorToken,
         copyable = false
     )
 }

app/src/main/java/org/unifiedpush/distributor/sunup/activities/ui/AppBarUi.kt

@@ -19,6 +19,7 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import org.unifiedpush.android.distributor.ui.R as LibR
+import org.unifiedpush.android.distributor.ui.compose.DistribMigrationUi
 import org.unifiedpush.distributor.sunup.R
 import org.unifiedpush.distributor.sunup.activities.AppAction
 import org.unifiedpush.distributor.sunup.activities.AppBarViewModel
@@ -78,6 +79,7 @@ fun AppBarUi(appBarViewModel: AppBarViewModel) {
             onConfirmation = { appBarViewModel.newPushServer(it) }
         )
     }
+    DistribMigrationUi(appBarViewModel.migrationViewModel)
 }
 
 @Composable

app/src/main/java/org/unifiedpush/distributor/sunup/activities/ui/MainUi.kt

@@ -31,8 +31,10 @@ import org.unifiedpush.android.distributor.ui.compose.RegistrationList
 import org.unifiedpush.android.distributor.ui.compose.RegistrationListHeading
 import org.unifiedpush.android.distributor.ui.compose.UnregisterBarUi
 import org.unifiedpush.android.distributor.ui.compose.previewRegistrationsViewModel
+import org.unifiedpush.android.distributor.ui.compose.state.DistribMigrationState
 import org.unifiedpush.distributor.sunup.BuildConfig
 import org.unifiedpush.distributor.sunup.activities.AppBarViewModel
+import org.unifiedpush.distributor.sunup.activities.DistribMigrationViewModel
 import org.unifiedpush.distributor.sunup.activities.MainViewModel
 import org.unifiedpush.distributor.sunup.utils.getDebugInfo
 
@@ -132,7 +134,10 @@ fun MainPreview() {
     MainUi(
         MainViewModel(
             MainUiState(),
-            AppBarViewModel(AppBarUiState(BuildConfig.DEFAULT_API_URL, false)),
+            AppBarViewModel(
+                AppBarUiState(BuildConfig.DEFAULT_API_URL, false),
+                DistribMigrationViewModel(DistribMigrationState())
+            ),
             BatteryOptimisationViewModel(true),
             previewRegistrationsViewModel()
         )