Implement migrations

build.gradle.kts

@@ -1,3 +1,4 @@
+import Config.migrationCode
 import Config.serverCode
 import Config.tachideskVersion
 import org.gradle.jvm.tasks.Jar
@@ -228,7 +229,9 @@ buildConfig {
 
     buildConfigField("String", "NAME", project.name.wrap())
     buildConfigField("String", "VERSION", project.version.toString().wrap())
+    buildConfigField("int", "MIGRATION_CODE", migrationCode.toString())
 
+    // Tachidesk
     buildConfigField("boolean", "DEBUG", project.hasProperty("debugApp").toString())
     buildConfigField("String", "TACHIDESK_SP_VERSION", tachideskVersion.wrap())
     buildConfigField("int", "SERVER_CODE", serverCode.toString())

buildSrc/src/main/kotlin/Config.kt

@@ -1,6 +1,9 @@
 import org.gradle.api.JavaVersion
 
 object Config {
+    const val migrationCode = 1
+
+    // Tachidesk
     const val tachideskVersion = "v0.6.0"
     // Match this to the Tachidesk-Server commit count
     const val serverCode = 1049

src/main/kotlin/ca/gosyer/data/DataModule.kt

@@ -12,6 +12,8 @@ import ca.gosyer.data.download.DownloadService
 import ca.gosyer.data.extension.ExtensionPreferences
 import ca.gosyer.data.library.LibraryPreferences
 import ca.gosyer.data.library.LibraryUpdateService
+import ca.gosyer.data.migration.MigrationPreferences
+import ca.gosyer.data.migration.Migrations
 import ca.gosyer.data.reader.ReaderPreferences
 import ca.gosyer.data.server.Http
 import ca.gosyer.data.server.HttpProvider
@@ -65,6 +67,10 @@ val DataModule = module {
         .toProviderInstance { UiPreferences(preferenceFactory.create("ui")) }
         .providesSingleton()
 
+    bind<MigrationPreferences>()
+        .toProviderInstance { MigrationPreferences(preferenceFactory.create("migration")) }
+        .providesSingleton()
+
     bind<Http>()
         .toProvider(HttpProvider::class)
         .providesSingleton()
@@ -104,4 +110,8 @@ val DataModule = module {
     bind<LibraryUpdateService>()
         .toClass<LibraryUpdateService>()
         .singleton()
+
+    bind<Migrations>()
+        .toClass<Migrations>()
+        .singleton()
 }

src/main/kotlin/ca/gosyer/data/migration/MigrationPreferences.kt

@@ -0,0 +1,16 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+package ca.gosyer.data.migration
+
+import ca.gosyer.common.prefs.Preference
+import ca.gosyer.common.prefs.PreferenceStore
+
+class MigrationPreferences(private val preferenceStore: PreferenceStore) {
+    fun version(): Preference<Int> {
+        return preferenceStore.getInt("version", 0)
+    }
+}

src/main/kotlin/ca/gosyer/data/migration/Migrations.kt

@@ -0,0 +1,27 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+package ca.gosyer.data.migration
+
+import ca.gosyer.build.BuildConfig
+import ca.gosyer.data.reader.ReaderPreferences
+import javax.inject.Inject
+
+class Migrations @Inject constructor(
+    private val migrationPreferences: MigrationPreferences,
+    private val readerPreferences: ReaderPreferences
+) {
+
+    fun runMigrations() {
+        val code = migrationPreferences.version().get()
+        if (code <= 0) {
+            readerPreferences.modes().get().forEach {
+                readerPreferences.getMode(it).direction().delete()
+            }
+            migrationPreferences.version().set(BuildConfig.MIGRATION_CODE)
+        }
+    }
+}

src/main/kotlin/ca/gosyer/ui/main/main.kt

@@ -27,6 +27,7 @@ import androidx.compose.ui.window.rememberWindowState
 import ca.gosyer.build.BuildConfig
 import ca.gosyer.core.logging.initializeLogger
 import ca.gosyer.data.DataModule
+import ca.gosyer.data.migration.Migrations
 import ca.gosyer.data.server.ServerService
 import ca.gosyer.data.server.ServerService.ServerResult
 import ca.gosyer.data.translation.XmlResourceBundle
@@ -82,6 +83,8 @@ suspend fun main() {
             DataModule
         )
 
+    scope.getInstance<Migrations>().runMigrations()
+
     val serverService = scope.getInstance<ServerService>()
     val uiPreferences = scope.getInstance<UiPreferences>()