flutter-freaccess-hub/lib/features/storage/services/database_storage_service.dart

95 lines
3.2 KiB
Dart

import 'dart:developer';
import 'package:hub/features/module/index.dart';
import 'package:hub/features/storage/index.dart';
import 'package:sqflite/sqflite.dart';
import 'package:path/path.dart';
class DatabaseService {
static const String _dbName = 'database.db';
static const int _dbVersion = 3;
static final DatabaseService instance = DatabaseService._internal();
factory DatabaseService() => instance;
DatabaseService._internal();
static Database? _database;
static Database get database {
if (_database == null) {
throw Exception('Database has not been initialized. Call init() first.');
}
return _database!;
}
static bool isInitialized = false;
Future<void> init() async {
if (isInitialized) return;
_database = await openDatabase(
join(await getDatabasesPath(), _dbName),
version: _dbVersion,
onCreate: _onCreate,
onUpgrade: _onUpgrade,
onDowngrade: _onDowngrade,
onOpen: _onOpen,
onConfigure: _onConfigure,
);
log('Database initialized');
await LicenseRepositoryImpl().updateLicense();
isInitialized = true;
}
Future<void> _onConfigure(Database database) async {
log('Configuring database...');
}
Future<void> _onOpen(Database database) async {
log('Opening database...');
await _executePragmas(database);
}
Future<void> _onCreate(Database database, int version) async {
log('Creating database...');
await database.execute(createKeychainTable);
await _onUpgrade(database, 1, _dbVersion);
}
Future<void> _onUpgrade(
Database database, int oldVersion, int newVersion) async {
log('Upgrading database from version $oldVersion to $newVersion...');
if (oldVersion < 2 && newVersion >= 2) {
await database.execute(LicenseConstants.createLicenseTable);
await database.execute(LicenseConstants.updatePetsHistoryTrigger);
await database.execute(LicenseConstants.updateDisplayTrigger);
await database.execute(LicenseConstants.insertDisplayTrigger);
await database.execute(LicenseConstants.updatePeopleDisplayTrigger);
}
if (oldVersion < 3 && newVersion >= 3) {
await database.execute(LocalsConstants.createLocalsTable);
}
}
Future<void> _onDowngrade(
Database database, int oldVersion, int newVersion) async {
log('Downgrading database from version $oldVersion to $newVersion...');
if (oldVersion >= 2 && newVersion < 2) {
await database.execute(LicenseConstants.deleteLicenseTable);
await database.execute(LicenseConstants.dropPeopleDisplayTrigger);
await database.execute(LicenseConstants.dropInsertDisplayTrigger);
await database.execute(LicenseConstants.dropUpdateDisplayTrigger);
await database.execute(LicenseConstants.dropPetsHistoryTrigger);
}
if (oldVersion >= 3 && newVersion > 3) {
await database.execute(LocalsConstants.deleteLocalsTable);
}
}
Future<void> _executePragmas(Database database) async {
// await database.execute('PRAGMA journal_mode = WAL;');
// await database.execute('PRAGMA synchronous = NORMAL;');
// await database.execute('PRAGMA temp_store = MEMORY;');
// await database.execute('PRAGMA foreign_keys = ON;');
}
}