mnemo_cards/mnemo_cards_backend/lib/storage/minio_config.dart

import 'dart:io';

/// Configuration for MinIO connection
class MinioConfig {
  final String endpoint;
  final int port;
  final String accessKey;
  final String secretKey;
  final bool useSSL;
  final String region;

  // Bucket names
  // Note: cardImagesBucket is used for all images (both card images and test images)
  // to simplify bucket management and reduce complexity
  static const String cardImagesBucket = 'card-images';
  static const String voiceAudioBucket = 'voice-audio';

  // Presigned URL expiration (7 days)
  // Increased from 4 hours to prevent 403 errors on cached card data
  static const int presignedUrlExpirySeconds = 1 * 24 * 60 * 60;

  MinioConfig({
    required this.endpoint,
    required this.port,
    required this.accessKey,
    required this.secretKey,
    required this.useSSL,
    required this.region,
  });

  factory MinioConfig.fromEnvironment() {
    return MinioConfig(
      endpoint: Platform.environment['MINIO_SERVER_URL']!,
      port: int.parse(Platform.environment['MINIO_PORT'] ?? '443'),
      accessKey: Platform.environment['SERVICE_USER_MINIO']!,
      secretKey: Platform.environment['SERVICE_PASSWORD_MINIO']!,
      useSSL: Platform.environment['MINIO_USE_SSL'] != 'false',
      region: Platform.environment['MINIO_REGION'] ?? 'us-east-1',
    );
  }
}