init static method
Opens the database and ensures tableName exists.
Implementation
static Future<Database> init(String tableName) async {
final normalizedTableName = normalizeTableName(tableName);
_database ??= await openDatabase(
join(await getDatabasesPath(), 'flow_queue.db'),
version: 1,
);
await _database!.execute('''
CREATE TABLE IF NOT EXISTS $normalizedTableName (
process_id TEXT PRIMARY KEY,
parent_process_id TEXT,
process_name TEXT NOT NULL,
state TEXT NOT NULL,
retry_count INTEGER DEFAULT 0,
priority INTEGER NOT NULL,
created_at INTEGER NOT NULL
)
''');
return _database!;
}