saveDecryptedContent function

Implementation

Future<void> saveDecryptedContent(
  String decryptedContent,
  String saveFilePath,
) async {
  final file = File(saveFilePath);

  // Ensure the parent directory exists.

  await file.parent.create(recursive: true);

  try {
    // First, try to detect content type.

    if (_isLikelyJson(decryptedContent)) {
      // Try to parse and save as formatted JSON.

      try {
        final jsonData = jsonDecode(decryptedContent);
        await file.writeAsString(
          const JsonEncoder.withIndent('  ').convert(jsonData),
        );
        return;
      } catch (jsonError) {
        debugPrint('JSON parsing failed despite looking like JSON: $jsonError');
        // Continue to other options if JSON parsing fails
      }
    }

    // For non-text files, try base64 decoding if it looks like base64.

    if (!isTextFile(saveFilePath) && _isLikelyBase64(decryptedContent)) {
      try {
        final bytes = base64Decode(decryptedContent);
        await file.writeAsBytes(bytes);
        return;
      } catch (base64Error) {
        debugPrint(
          'Base64 decode failed despite looking like base64: $base64Error',
        );
        // Continue to text handling if base64 fails
      }
    }

    // Default: treat as plain text.

    await file.writeAsString(decryptedContent);
  } catch (e) {
    throw Exception('Failed to save file: ${e.toString()}');
  }
}