fix: ensure default category

app/src/main/java/ua/acclorite/book_story/data/di/AppModule.kt

@@ -49,9 +49,6 @@ object AppModule {
     @Provides
     @Singleton
     fun provideBookDatabase(app: Application): BookDatabase {
-        // Additional Migrations
-        DatabaseHelper.AUTO_MIGRATION_7_8.removeBooksDir(app)
-
         return Room.databaseBuilder(
             app,
             BookDatabase::class.java,
@@ -63,6 +60,10 @@ object AppModule {
             DatabaseHelper.MANUAL_MIGRATION_13_14, // remove nullability from ColorPresetEntity
             DatabaseHelper.MANUAL_MIGRATION_14_15, // remove author nullability from BookEntity
             DatabaseHelper.MANUAL_MIGRATION_15_16, // merge CategoryEntity and CategorySortEntity
-        ).allowMainThreadQueries().build()
+        ).allowMainThreadQueries().build().also { database ->
+            // Additional Migrations
+            DatabaseHelper.AUTO_MIGRATION_7_8.removeBooksDir(app)
+            database.categoryDao.ensureDefaultCategory()
+        }
     }
 }

app/src/main/java/ua/acclorite/book_story/data/local/room/BookDatabase.kt

@@ -221,12 +221,6 @@ object DatabaseHelper {
                         ON c.id = cs.categoryId
                 """
             )
-            database.execSQL(
-                """
-                    INSERT INTO CategoryEntity_new (id, title, `order`, sortOrder, sortOrderDescending)
-                    VALUES (-1, '', -1, 'LAST_READ', 1)
-                """
-            )
             database.execSQL("DROP TABLE CategoryEntity")
             database.execSQL("DROP TABLE CategorySortEntity")
             database.execSQL("ALTER TABLE CategoryEntity_new RENAME TO CategoryEntity")

app/src/main/java/ua/acclorite/book_story/data/local/room/CategoryDao.kt

@@ -16,6 +16,9 @@ import ua.acclorite.book_story.data.local.dto.CategoryEntity
 
 @Dao
 interface CategoryDao {
+    @Query("INSERT OR IGNORE INTO CategoryEntity (id, title, `order`, sortOrder, sortOrderDescending) VALUES (-1, '', -1, 'LAST_READ', 1)")
+    fun ensureDefaultCategory()
+
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     suspend fun insertCategory(
         category: CategoryEntity