Move SyncManager to uhabits-core

android/uhabits-android/src/androidTest/java/org/isoron/uhabits/BaseAndroidTest.java

@@ -35,10 +35,12 @@ import junit.framework.*;
 import org.isoron.androidbase.*;
 import org.isoron.androidbase.activities.*;
 import org.isoron.androidbase.utils.*;
+import org.isoron.uhabits.core.database.*;
 import org.isoron.uhabits.core.models.*;
 import org.isoron.uhabits.core.preferences.*;
 import org.isoron.uhabits.core.tasks.*;
 import org.isoron.uhabits.core.utils.*;
+import org.isoron.uhabits.utils.*;
 import org.junit.*;
 
 import java.io.*;
@@ -99,9 +101,12 @@ public class BaseAndroidTest extends TestCase
 
         latch = new CountDownLatch(1);
 
+        Context context = targetContext.getApplicationContext();
+        File dbFile = DatabaseUtils.getDatabaseFile(context);
         appComponent = DaggerHabitsApplicationTestComponent
             .builder()
-            .appContextModule(new AppContextModule(targetContext.getApplicationContext()))
+            .appContextModule(new AppContextModule(context))
+            .habitsModule(new HabitsModule(dbFile))
             .build();
 
         HabitsApplication.Companion.setComponent(appComponent);

android/uhabits-android/src/androidTest/java/org/isoron/uhabits/database/AndroidDatabaseTest.java

@@ -39,7 +39,7 @@ public class AndroidDatabaseTest extends BaseAndroidTest
     public void setUp()
     {
         super.setUp();
-        db = new AndroidDatabase(SQLiteDatabase.create(null));
+        db = new AndroidDatabase(SQLiteDatabase.create(null), null);
         db.execute("create table test(color int, name string)");
     }
 

android/uhabits-android/src/androidTest/java/org/isoron/uhabits/sync/RemoteSyncServerTest.kt

@@ -28,11 +28,12 @@ import io.ktor.client.request.*
 import io.ktor.http.*
 import junit.framework.Assert.*
 import kotlinx.coroutines.*
+import org.isoron.uhabits.*
 import org.isoron.uhabits.core.sync.*
 import org.junit.*
 
 @MediumTest
-class RemoteSyncServerTest {
+class RemoteSyncServerTest : BaseAndroidTest() {
 
     private val mapper = ObjectMapper()
     val data = SyncData(1, "Hello world")
@@ -127,7 +128,7 @@ class RemoteSyncServerTest {
                     }
                 }
             }
-        }, baseURL = "")
+        }, preferences = prefs)
     }
 
     private fun MockRequestHandleScope.respondWithJson(content: Any) =

android/uhabits-android/src/main/java/org/isoron/uhabits/HabitsApplication.kt

@@ -43,10 +43,6 @@ class HabitsApplication : Application() {
     override fun onCreate() {
         super.onCreate()
         context = this
-        HabitsApplication.component = DaggerHabitsApplicationComponent
-                .builder()
-                .appContextModule(AppContextModule(context))
-                .build()
 
         if (isTestMode()) {
             val db = DatabaseUtils.getDatabaseFile(context)
@@ -60,6 +56,14 @@ class HabitsApplication : Application() {
             db.renameTo(File(db.absolutePath + ".invalid"))
             DatabaseUtils.initializeDatabase(context)
         }
+
+        val db = DatabaseUtils.getDatabaseFile(this)
+        HabitsApplication.component = DaggerHabitsApplicationComponent
+                .builder()
+                .appContextModule(AppContextModule(context))
+                .habitsModule(HabitsModule(db))
+                .build()
+
         DateUtils.setStartDayOffset(3, 0)
 
         widgetUpdater = component.widgetUpdater

android/uhabits-android/src/main/java/org/isoron/uhabits/HabitsApplicationComponent.java

@@ -28,13 +28,13 @@ import org.isoron.uhabits.core.io.*;
 import org.isoron.uhabits.core.models.*;
 import org.isoron.uhabits.core.preferences.*;
 import org.isoron.uhabits.core.reminders.*;
+import org.isoron.uhabits.core.sync.*;
 import org.isoron.uhabits.core.tasks.*;
 import org.isoron.uhabits.core.ui.*;
 import org.isoron.uhabits.core.ui.screens.habits.list.*;
 import org.isoron.uhabits.core.utils.*;
 import org.isoron.uhabits.intents.*;
 import org.isoron.uhabits.receivers.*;
-import org.isoron.uhabits.sync.*;
 import org.isoron.uhabits.tasks.*;
 import org.isoron.uhabits.widgets.*;
 

android/uhabits-android/src/main/java/org/isoron/uhabits/HabitsDatabaseOpener.kt

@@ -26,10 +26,11 @@ import android.database.sqlite.*
 
 import org.isoron.uhabits.core.database.*
 import org.isoron.uhabits.database.*
+import java.io.*
 
 class HabitsDatabaseOpener(
         context: Context,
-        databaseFilename: String,
+        private val databaseFilename: String,
         private val version: Int
 ) : SQLiteOpenHelper(context, databaseFilename, null, version) {
 
@@ -49,7 +50,7 @@ class HabitsDatabaseOpener(
                            newVersion: Int) {
         db.disableWriteAheadLogging()
         if (db.version < 8) throw UnsupportedDatabaseVersionException()
-        val helper = MigrationHelper(AndroidDatabase(db))
+        val helper = MigrationHelper(AndroidDatabase(db, File(databaseFilename)))
         helper.migrateTo(newVersion)
     }
 

android/uhabits-android/src/main/java/org/isoron/uhabits/HabitsModule.kt

@@ -19,24 +19,34 @@
 
 package org.isoron.uhabits
 
+import android.content.*
 import dagger.*
+import org.isoron.androidbase.*
 import org.isoron.uhabits.core.*
 import org.isoron.uhabits.core.commands.*
 import org.isoron.uhabits.core.database.*
+import org.isoron.uhabits.core.io.*
 import org.isoron.uhabits.core.models.*
 import org.isoron.uhabits.core.models.sqlite.*
 import org.isoron.uhabits.core.preferences.*
 import org.isoron.uhabits.core.reminders.*
+import org.isoron.uhabits.core.sync.*
 import org.isoron.uhabits.core.tasks.*
 import org.isoron.uhabits.core.ui.*
 import org.isoron.uhabits.database.*
 import org.isoron.uhabits.intents.*
+import org.isoron.uhabits.io.*
 import org.isoron.uhabits.notifications.*
 import org.isoron.uhabits.preferences.*
+import org.isoron.uhabits.sync.*
 import org.isoron.uhabits.utils.*
+import java.io.*
 
 @Module
-class HabitsModule {
+class HabitsModule(dbFile: File) {
+
+    val db: Database = AndroidDatabase(DatabaseUtils.openDatabase(), dbFile)
+
     @Provides
     @AppScope
     fun getPreferences(storage: SharedPreferencesStorage): Preferences {
@@ -76,7 +86,7 @@ class HabitsModule {
     @Provides
     @AppScope
     fun getModelFactory(): ModelFactory {
-        return SQLModelFactory(AndroidDatabase(DatabaseUtils.openDatabase()))
+        return SQLModelFactory(db)
     }
 
     @Provides
@@ -90,5 +100,29 @@ class HabitsModule {
     fun getDatabaseOpener(opener: AndroidDatabaseOpener): DatabaseOpener {
         return opener
     }
+
+    @Provides
+    @AppScope
+    fun getLogging(): Logging {
+        return AndroidLogging()
+    }
+
+    @Provides
+    @AppScope
+    fun getNetworkManager(@AppContext context: Context): NetworkManager {
+        return AndroidNetworkManager(context)
+    }
+
+    @Provides
+    @AppScope
+    fun getSyncServer(preferences: Preferences) : AbstractSyncServer {
+        return RemoteSyncServer(preferences)
+    }
+
+    @Provides
+    @AppScope
+    fun getDatabase(): Database {
+        return db
+    }
 }
 

android/uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/list/ListHabitsActivity.kt

@@ -25,11 +25,11 @@ import org.isoron.uhabits.*
 import org.isoron.uhabits.activities.*
 import org.isoron.uhabits.activities.habits.list.views.*
 import org.isoron.uhabits.core.preferences.*
+import org.isoron.uhabits.core.sync.*
 import org.isoron.uhabits.core.tasks.*
 import org.isoron.uhabits.core.ui.ThemeSwitcher.*
 import org.isoron.uhabits.core.utils.*
 import org.isoron.uhabits.database.*
-import org.isoron.uhabits.sync.*
 
 class ListHabitsActivity : HabitsActivity() {
 

android/uhabits-android/src/main/java/org/isoron/uhabits/activities/sync/SyncActivity.kt

@@ -52,7 +52,7 @@ class SyncActivity : BaseActivity(), SyncBehavior.Screen {
 
         val component = (application as HabitsApplication).component
         val preferences = component.preferences
-        val server = RemoteSyncServer(baseURL = preferences.syncBaseURL)
+        val server = RemoteSyncServer(preferences = preferences)
         baseScreen = BaseScreen(this)
         behavior = SyncBehavior(this, preferences, server)
 

android/uhabits-android/src/main/java/org/isoron/uhabits/database/AndroidDatabase.kt

@@ -22,8 +22,12 @@ package org.isoron.uhabits.database
 import android.content.*
 import android.database.sqlite.*
 import org.isoron.uhabits.core.database.*
+import java.io.*
 
-class AndroidDatabase(private val db: SQLiteDatabase) : Database {
+class AndroidDatabase(
+        private val db: SQLiteDatabase,
+        private val file: File?,
+) : Database {
 
     override fun beginTransaction() = db.beginTransaction()
     override fun setTransactionSuccessful() = db.setTransactionSuccessful()
@@ -31,6 +35,10 @@ class AndroidDatabase(private val db: SQLiteDatabase) : Database {
     override fun close() = db.close()
     override fun getVersion() = db.version
 
+    override fun getFile(): File? {
+        return file
+    }
+
     override fun query(query: String, vararg params: String)
             = AndroidCursor(db.rawQuery(query, params))
 

android/uhabits-android/src/main/java/org/isoron/uhabits/database/AndroidDatabaseOpener.kt

@@ -26,7 +26,12 @@ import javax.inject.*
 
 class AndroidDatabaseOpener @Inject constructor() : DatabaseOpener {
     override fun open(file: File): AndroidDatabase {
-        return AndroidDatabase(SQLiteDatabase.openDatabase(
+        return AndroidDatabase(
-                file.absolutePath, null, SQLiteDatabase.OPEN_READWRITE))
+                db = SQLiteDatabase.openDatabase(
+                        file.absolutePath,
+                        null,
+                        SQLiteDatabase.OPEN_READWRITE,
+                ),
+                file = file)
     }
 }

android/uhabits-android/src/main/java/org/isoron/uhabits/io/AndroidLogging.kt

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2016-2020 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.io
+
+import android.util.*
+import org.isoron.uhabits.core.io.*
+
+class AndroidLogging : Logging {
+    override fun getLogger(name: String): Logger {
+        return AndroidLogger(name)
+    }
+}
+
+class AndroidLogger(val name: String) : Logger {
+    override fun info(msg: String) {
+        Log.i(name, msg)
+    }
+
+    override fun debug(msg: String) {
+        Log.d(name, msg)
+    }
+
+    override fun error(msg: String) {
+        Log.e(name, msg)
+    }
+
+    override fun error(exception: Exception) {
+        Log.e(name, "Exception", exception)
+    }
+
+}

android/uhabits-android/src/main/java/org/isoron/uhabits/sync/AndroidNetworkManager.kt

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2016-2020 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.sync
+
+import android.content.*
+import android.net.*
+import org.isoron.uhabits.core.sync.*
+
+class AndroidNetworkManager(
+        val context: Context,
+) : NetworkManager, ConnectivityManager.NetworkCallback() {
+
+    val listeners = mutableListOf<NetworkManager.Listener>()
+    var connected = false
+
+    init {
+        val cm = context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+        cm.registerNetworkCallback(NetworkRequest.Builder().build(), this)
+    }
+
+    override fun addListener(listener: NetworkManager.Listener) {
+        if (connected) listener.onNetworkAvailable()
+        else listener.onNetworkLost()
+        listeners.add(listener)
+    }
+
+    override fun remoteListener(listener: NetworkManager.Listener) {
+        listeners.remove(listener)
+    }
+
+    override fun onAvailable(network: Network) {
+        connected = true
+        for (l in listeners) l.onNetworkAvailable()
+    }
+
+    override fun onLost(network: Network) {
+        connected = false
+        for (l in listeners) l.onNetworkLost()
+    }
+}

android/uhabits-android/src/main/java/org/isoron/uhabits/sync/RemoteSyncServer.kt

@@ -26,10 +26,11 @@ import io.ktor.client.features.*
 import io.ktor.client.features.json.*
 import io.ktor.client.request.*
 import kotlinx.coroutines.*
+import org.isoron.uhabits.core.preferences.*
 import org.isoron.uhabits.core.sync.*
 
 class RemoteSyncServer(
-        private val baseURL: String,
+        private val preferences: Preferences,
         private val httpClient: HttpClient = HttpClient(Android) {
             install(JsonFeature)
         }
@@ -37,7 +38,7 @@ class RemoteSyncServer(
 
     override suspend fun register(): String = Dispatchers.IO {
         try {
-            val url = "$baseURL/register"
+            val url = "${preferences.syncBaseURL}/register"
             Log.i("RemoteSyncServer", "POST $url")
             val response: RegisterReponse = httpClient.post(url)
             return@IO response.key
@@ -48,7 +49,7 @@ class RemoteSyncServer(
 
     override suspend fun put(key: String, newData: SyncData) = Dispatchers.IO {
         try {
-            val url = "$baseURL/db/$key"
+            val url = "${preferences.syncBaseURL}/db/$key"
             Log.i("RemoteSyncServer", "PUT $url")
             val response: String = httpClient.put(url) {
                 header("Content-Type", "application/json")
@@ -66,7 +67,7 @@ class RemoteSyncServer(
 
     override suspend fun getData(key: String): SyncData = Dispatchers.IO {
         try {
-            val url = "$baseURL/db/$key"
+            val url = "${preferences.syncBaseURL}/db/$key"
             Log.i("RemoteSyncServer", "GET $url")
             val data: SyncData = httpClient.get(url)
             return@IO data
@@ -80,7 +81,7 @@ class RemoteSyncServer(
 
     override suspend fun getDataVersion(key: String): Long = Dispatchers.IO {
         try {
-            val url = "$baseURL/db/$key/version"
+            val url = "${preferences.syncBaseURL}/db/$key/version"
             Log.i("RemoteSyncServer", "GET $url")
             val response: GetDataVersionResponse = httpClient.get(url)
             return@IO response.version

android/uhabits-core/src/main/java/org/isoron/uhabits/core/database/Database.java

@@ -19,6 +19,7 @@
 
 package org.isoron.uhabits.core.database;
 
+import java.io.*;
 import java.util.*;
 
 public interface Database
@@ -54,6 +55,8 @@ public interface Database
 
     int getVersion();
 
+    File getFile();
+
     interface ProcessCallback
     {
         void process(Cursor cursor);

android/uhabits-core/src/main/java/org/isoron/uhabits/core/database/JdbcDatabase.java

@@ -21,6 +21,7 @@ package org.isoron.uhabits.core.database;
 
 import org.apache.commons.lang3.*;
 
+import java.io.*;
 import java.sql.*;
 import java.util.*;
 
@@ -203,4 +204,10 @@ public class JdbcDatabase implements Database
             return c.getInt(0);
         }
     }
+
+    @Override
+    public File getFile()
+    {
+        return null;
+    }
 }

android/uhabits-core/src/main/java/org/isoron/uhabits/core/io/Logging.kt

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2016-2020 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.core.io
+
+import java.lang.Exception
+
+interface Logging {
+    fun getLogger(name: String): Logger
+}
+
+interface Logger {
+    fun info(msg: String)
+    fun debug(msg: String)
+    fun error(msg: String)
+    fun error(exception: Exception)
+}

android/uhabits-core/src/main/java/org/isoron/uhabits/core/io/LoopDBImporter.java

@@ -21,6 +21,7 @@ package org.isoron.uhabits.core.io;
 
 import androidx.annotation.*;
 
+import org.isoron.uhabits.core.*;
 import org.isoron.uhabits.core.commands.*;
 import org.isoron.uhabits.core.database.*;
 import org.isoron.uhabits.core.models.*;
@@ -47,10 +48,10 @@ public class LoopDBImporter extends AbstractImporter
     private final CommandRunner runner;
 
     @Inject
-    public LoopDBImporter(@NonNull HabitList habitList,
+    public LoopDBImporter(@AppScope @NonNull HabitList habitList,
-                          @NonNull ModelFactory modelFactory,
+                          @AppScope @NonNull ModelFactory modelFactory,
-                          @NonNull DatabaseOpener opener,
+                          @AppScope @NonNull DatabaseOpener opener,
-                          @NonNull CommandRunner runner)
+                          @AppScope @NonNull CommandRunner runner)
     {
         super(habitList);
         this.modelFactory = modelFactory;

android/uhabits-core/src/main/java/org/isoron/uhabits/core/sync/NetworkManager.kt

@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2016-2020 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.core.sync
+
+interface NetworkManager {
+    fun addListener(listener: Listener)
+    fun remoteListener(listener: Listener)
+    interface Listener {
+        fun onNetworkAvailable()
+        fun onNetworkLost()
+    }
+}

android/uhabits-core/src/main/java/org/isoron/uhabits/core/sync/SyncManager.kt

@@ -17,74 +17,63 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.isoron.uhabits.sync
+package org.isoron.uhabits.core.sync
 
-import android.content.*
-import android.net.*
-import android.util.*
 import kotlinx.coroutines.*
-import org.isoron.androidbase.*
 import org.isoron.uhabits.core.*
 import org.isoron.uhabits.core.commands.*
+import org.isoron.uhabits.core.database.*
+import org.isoron.uhabits.core.io.*
 import org.isoron.uhabits.core.preferences.*
-import org.isoron.uhabits.core.sync.*
-import org.isoron.uhabits.core.tasks.*
-import org.isoron.uhabits.tasks.*
-import org.isoron.uhabits.utils.*
 import java.io.*
 import javax.inject.*
 
 @AppScope
 class SyncManager @Inject constructor(
         val preferences: Preferences,
-        private val importDataTaskFactory: ImportDataTaskFactory,
         val commandRunner: CommandRunner,
-        @AppContext val context: Context
+        val logging: Logging,
-) : Preferences.Listener, CommandRunner.Listener, ConnectivityManager.NetworkCallback() {
+        val networkManager: NetworkManager,
+        val server: AbstractSyncServer,
+        val db: Database,
+        val dbImporter: LoopDBImporter,
+) : Preferences.Listener, CommandRunner.Listener, NetworkManager.Listener {
 
+    private var logger = logging.getLogger("SyncManager")
     private var connected = false
-
+    private val tmpFile = File.createTempFile("import", "")
-    private val server = RemoteSyncServer(baseURL = preferences.syncBaseURL)
-
-    private val tmpFile = File.createTempFile("import", "", context.externalCacheDir)
-
     private var currVersion = 1L
-
     private var dirty = true
-
-    private var taskRunner = SingleThreadTaskRunner()
-
     private lateinit var encryptionKey: EncryptionKey
-
     private lateinit var syncKey: String
 
     init {
         preferences.addListener(this)
         commandRunner.addListener(this)
-        val cm = context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+        networkManager.addListener(this)
-        cm.registerNetworkCallback(NetworkRequest.Builder().build(), this)
     }
 
     fun sync() = CoroutineScope(Dispatchers.Main).launch {
         if (!preferences.isSyncEnabled) {
-            Log.i("SyncManager", "Device sync is disabled. Skipping sync.")
+            logger.info("Device sync is disabled. Skipping sync.")
             return@launch
         }
 
         encryptionKey = EncryptionKey.fromBase64(preferences.encryptionKey)
         syncKey = preferences.syncKey
-        Log.i("SyncManager", "Starting sync (key: $syncKey)")
+        logger.info("Starting sync (key: $syncKey)")
 
         try {
             pull()
             push()
-            Log.i("SyncManager", "Sync finished successfully.")
+            logger.info("Sync finished successfully.")
         } catch (e: ConnectionLostException) {
-            Log.i("SyncManager", "Network unavailable. Aborting sync.")
+            logger.info("Network unavailable. Aborting sync.")
         } catch (e: ServiceUnavailable) {
-            Log.i("SyncManager", "Sync service unavailable. Aborting sync.")
+            logger.info("Sync service unavailable. Aborting sync.")
         } catch (e: Exception) {
-            Log.e("SyncManager", "Unexpected sync exception. Disabling sync.", e)
+            logger.error("Unexpected sync exception. Disabling sync.")
+            logger.error(e)
             preferences.disableSync()
         }
     }
@@ -95,45 +84,55 @@ class SyncManager @Inject constructor(
         }
 
         if (!dirty) {
-            Log.i("SyncManager", "Local database not modified. Skipping push.")
+            logger.info("Local database not modified. Skipping push.")
             return
         }
 
-        Log.i("SyncManager", "Encrypting local database...")
+        logger.info("Encrypting local database...")
-        val db = DatabaseUtils.getDatabaseFile(context)
+        val encryptedDB = db.file.encryptToString(encryptionKey)
-        val encryptedDB = db.encryptToString(encryptionKey)
         val size = encryptedDB.length / 1024
 
         try {
-            Log.i("SyncManager", "Pushing local database (version $currVersion, $size KB)")
+            logger.info("Pushing local database (version $currVersion, $size KB)")
             assertConnected()
             server.put(preferences.syncKey, SyncData(currVersion, encryptedDB))
             dirty = false
         } catch (e: EditConflictException) {
-            Log.i("SyncManager", "Sync conflict detected while pushing.")
+            logger.info("Sync conflict detected while pushing.")
             setCurrentVersion(0)
             pull()
             push(depth = depth + 1)
         }
     }
 
-    private suspend fun pull() {
+    private suspend fun pull() = Dispatchers.IO {
-        Log.i("SyncManager", "Querying remote database version...")
+        logger.info("Querying remote database version...")
         assertConnected()
         val remoteVersion = server.getDataVersion(syncKey)
-        Log.i("SyncManager", "Remote database version: $remoteVersion")
+        logger.info("Remote database version: $remoteVersion")
 
         if (remoteVersion <= currVersion) {
-            Log.i("SyncManager", "Local database is up-to-date. Skipping merge.")
+            logger.info("Local database is up-to-date. Skipping merge.")
         } else {
-            Log.i("SyncManager", "Pulling remote database...")
+            logger.info("Pulling remote database...")
             assertConnected()
             val data = server.getData(syncKey)
             val size = data.content.length / 1024
-            Log.i("SyncManager", "Pulled remote database (version ${data.version}, $size KB)")
+            logger.info("Pulled remote database (version ${data.version}, $size KB)")
-            Log.i("SyncManager", "Decrypting remote database and merging with local changes...")
+            logger.info("Decrypting remote database and merging with local changes...")
             data.content.decryptToFile(encryptionKey, tmpFile)
-            taskRunner.execute(importDataTaskFactory.create(tmpFile) { tmpFile.delete() })
+
+            try {
+                db.beginTransaction()
+                dbImporter.importHabitsFromFile(tmpFile)
+                db.setTransactionSuccessful()
+            } catch (e: Exception) {
+                logger.error("Failed to import database")
+                logger.error(e)
+            } finally {
+                db.endTransaction()
+            }
+
             dirty = true
             setCurrentVersion(data.version + 1)
         }
@@ -144,20 +143,20 @@ class SyncManager @Inject constructor(
     fun onPause() = sync()
 
     override fun onSyncEnabled() {
-        Log.i("SyncManager", "Sync enabled.")
+        logger.info("Sync enabled.")
         setCurrentVersion(1)
         dirty = true
         sync()
     }
 
-    override fun onAvailable(network: Network) {
+    override fun onNetworkAvailable() {
-        Log.i("SyncManager", "Network available.")
+        logger.info("Network available.")
         connected = true
         sync()
     }
 
-    override fun onLost(network: Network) {
+    override fun onNetworkLost() {
-        Log.i("SyncManager", "Network unavailable.")
+        logger.info("Network unavailable.")
         connected = false
     }
 
@@ -172,7 +171,7 @@ class SyncManager @Inject constructor(
 
     private fun setCurrentVersion(v: Long) {
         currVersion = v
-        Log.i("SyncManager", "Setting local database version: $currVersion")
+        logger.info("Setting local database version: $currVersion")
     }
 }