validate static method

Future<Map<String, String>> validate(String serverDir)

Validate .env exists, is complete, and database is reachable. Returns parsed env map on success, exits on failure.

Implementation

static Future<Map<String, String>> validate(String serverDir) async {
  final File envFile = File('$serverDir${PlatformInfo.separator}.env');
  final File exampleFile =
      File('$serverDir${PlatformInfo.separator}.env.example');

  // 1. Check .env exists
  if (!envFile.existsSync()) {
    Logger.fail('.env not found in $serverDir');
    if (exampleFile.existsSync()) {
      Logger.detail('Copy .env.example to .env and fill in values.');
    }
    exit(1);
  }

  // 2. Parse .env
  final Map<String, String> env = _parseEnvFile(envFile);

  // 3. Check completeness against .env.example
  if (exampleFile.existsSync()) {
    final Set<String> requiredKeys = _parseEnvFile(exampleFile).keys.toSet();
    final List<String> missing = requiredKeys
        .where((String key) => !env.containsKey(key))
        .toList();
    if (missing.isNotEmpty) {
      Logger.fail('.env missing keys: ${missing.join(', ')}');
      exit(1);
    }
  }

  // 4. Check key values are not empty
  final List<String> emptyKeys = env.entries
      .where((MapEntry<String, String> e) => e.value.isEmpty)
      .map((MapEntry<String, String> e) => e.key)
      .toList();
  if (emptyKeys.isNotEmpty) {
    Logger.fail('.env has empty values: ${emptyKeys.join(', ')}');
    exit(1);
  }

  Logger.ok('.env validated (${env.length} keys)');

  // 5. Test database connection
  final String? dbUrl = env['DATABASE_URL'];
  if (dbUrl != null) {
    await _testDatabaseConnection(dbUrl);
  }

  return env;
}