/// Represents an asset (image) from Immich API.
class ImmichAsset {
  /// Unique identifier for the asset.
  final String id;

  /// File name of the asset.
  final String fileName;

  /// Creation date/time of the asset.
  final DateTime createdAt;

  /// File size in bytes.
  final int fileSize;

  /// MIME type of the asset.
  final String mimeType;

  /// Width of the image in pixels.
  final int? width;

  /// Height of the image in pixels.
  final int? height;

  /// Creates an [ImmichAsset] instance.
  ImmichAsset({
    required this.id,
    required this.fileName,
    required this.createdAt,
    required this.fileSize,
    required this.mimeType,
    this.width,
    this.height,
  });

  /// Creates an [ImmichAsset] from Immich API JSON response.
  factory ImmichAsset.fromJson(Map<String, dynamic> json) {
    return ImmichAsset(
      id: json['id'] as String,
      fileName: json['originalFileName'] as String? ?? json['fileName'] as String? ?? 'unknown',
      createdAt: DateTime.parse(json['createdAt'] as String),
      fileSize: json['fileSizeByte'] as int? ?? json['fileSize'] as int? ?? 0,
      mimeType: json['mimeType'] as String? ?? 'image/jpeg',
      width: json['exifInfo']?['imageWidth'] as int?,
      height: json['exifInfo']?['imageHeight'] as int?,
    );
  }

  /// Converts [ImmichAsset] to JSON for local storage.
  Map<String, dynamic> toJson() {
    return {
      'id': id,
      'fileName': fileName,
      'createdAt': createdAt.toIso8601String(),
      'fileSize': fileSize,
      'mimeType': mimeType,
      'width': width,
      'height': height,
    };
  }

  /// Creates an [ImmichAsset] from local storage JSON.
  factory ImmichAsset.fromLocalJson(Map<String, dynamic> json) {
    return ImmichAsset(
      id: json['id'] as String,
      fileName: json['fileName'] as String,
      createdAt: DateTime.parse(json['createdAt'] as String),
      fileSize: json['fileSize'] as int,
      mimeType: json['mimeType'] as String,
      width: json['width'] as int?,
      height: json['height'] as int?,
    );
  }

  @override
  String toString() {
    return 'ImmichAsset(id: $id, fileName: $fileName, createdAt: $createdAt)';
  }
}