Migrate to multiplatform SQLite library

app/build.gradle.kts

@@ -114,6 +114,10 @@ kotlin {
                 // I/O
                 implementation("org.jetbrains.kotlinx:kotlinx-io-core:0.9.0")
 
+                // SQLite
+                implementation("androidx.sqlite:sqlite:2.6.2")
+                implementation("androidx.sqlite:sqlite-bundled:2.6.2")
+
                 // HTTP client
                 implementation("io.ktor:ktor-client-core:3.4.0")
                 implementation("io.ktor:ktor-client-encoding:3.4.0")

app/src/androidInstrumentedTest/kotlin/de/westnordost/streetcomplete/data/ApplicationDbTestCase.kt

@@ -1,32 +1,31 @@
 package de.westnordost.streetcomplete.data
 
-import android.database.sqlite.SQLiteOpenHelper
+import androidx.sqlite.SQLiteConnection
+import androidx.sqlite.driver.bundled.BundledSQLiteDriver
 import androidx.test.platform.app.InstrumentationRegistry
 import kotlin.test.AfterTest
 import kotlin.test.BeforeTest
 import kotlin.test.Test
 import kotlin.test.assertNotNull
 
 open class ApplicationDbTestCase {
-    protected lateinit var dbHelper: SQLiteOpenHelper
     protected lateinit var database: Database
+    private lateinit var dbConnection: SQLiteConnection
+    private val context get() = InstrumentationRegistry.getInstrumentation().targetContext
 
     @BeforeTest fun setUpHelper() {
-        dbHelper = StreetCompleteSQLiteOpenHelper(
-            InstrumentationRegistry.getInstrumentation().targetContext,
-            DATABASE_NAME
-        )
-        database = AndroidDatabase(dbHelper.writableDatabase)
+        val dbPath = context.getDatabasePath(DATABASE_NAME).path
+        dbConnection = BundledSQLiteDriver().open(dbPath)
+        database = StreetCompleteDatabase(dbConnection)
     }
 
     @Test fun databaseAvailable() {
-        assertNotNull(dbHelper.readableDatabase)
+        assertNotNull(database)
     }
 
     @AfterTest fun tearDownHelper() {
-        dbHelper.close()
-        InstrumentationRegistry.getInstrumentation().targetContext
-            .deleteDatabase(DATABASE_NAME)
+        dbConnection.close()
+        context.deleteDatabase(DATABASE_NAME)
     }
 
     companion object {

app/src/androidInstrumentedTest/kotlin/de/westnordost/streetcomplete/util/ktx/SQLiteDatabaseKtTest.kt

@@ -7,10 +7,10 @@ import kotlin.test.BeforeTest
 class SQLiteDatabaseKtTest : ApplicationDbTestCase() {
 
     @BeforeTest fun setUp() {
-        dbHelper.writableDatabase.execSQL("CREATE TABLE t (a int, b int)")
+        database.exec("CREATE TABLE t (a int, b int)")
     }
 
     @AfterTest fun tearDown() {
-        dbHelper.writableDatabase.execSQL("DROP TABLE t")
+        database.exec("DROP TABLE t")
     }
 }

app/src/androidMain/kotlin/de/westnordost/streetcomplete/AndroidModule.kt

@@ -1,11 +1,12 @@
 package de.westnordost.streetcomplete
 
+import android.content.Context
+import androidx.sqlite.driver.bundled.BundledSQLiteDriver
 import com.russhwolf.settings.ObservableSettings
 import com.russhwolf.settings.SharedPreferencesSettings
-import de.westnordost.streetcomplete.data.AndroidDatabase
 import de.westnordost.streetcomplete.data.CleanerWorker
 import de.westnordost.streetcomplete.data.Database
-import de.westnordost.streetcomplete.data.StreetCompleteSQLiteOpenHelper
+import de.westnordost.streetcomplete.data.StreetCompleteDatabase
 import de.westnordost.streetcomplete.data.connection.InternetConnectionState
 import de.westnordost.streetcomplete.data.download.DownloadController
 import de.westnordost.streetcomplete.data.download.DownloadControllerAndroid
@@ -28,8 +29,9 @@ val androidModule = module {
     // Database on Android
 
     single<Database> {
-        val sqLite = StreetCompleteSQLiteOpenHelper(get(), ApplicationConstants.DATABASE_NAME)
-        AndroidDatabase(sqLite.writableDatabase)
+        val databaseFilePath = get<Context>().getDatabasePath(ApplicationConstants.DATABASE_NAME).path
+        val databaseConnection = BundledSQLiteDriver().open(databaseFilePath)
+        StreetCompleteDatabase(databaseConnection)
     }
 
     // Workmanager-based on Android