class TerminalScreenPatch {
  const TerminalScreenPatch({
    required this.sessionId,
    required this.baseScreenVersion,
    required this.screenVersion,
    required this.sourceSequence,
    required this.rows,
    required this.columns,
    required this.cursorRow,
    required this.cursorColumn,
    required this.cursorVisible,
    required this.activeBuffer,
    required this.operations,
  });

  final String sessionId;
  final int baseScreenVersion;
  final int screenVersion;
  final int sourceSequence;
  final int rows;
  final int columns;
  final int cursorRow;
  final int cursorColumn;
  final bool cursorVisible;
  final String activeBuffer;
  final List<TerminalScreenPatchOperation> operations;

  factory TerminalScreenPatch.fromJson(Map<String, dynamic> json) {
    final rawOperations = (json['operations'] as List?) ?? const <dynamic>[];
    return TerminalScreenPatch(
      sessionId: json['sessionId'] as String,
      baseScreenVersion: (json['baseScreenVersion'] as num?)?.toInt() ?? 0,
      screenVersion: (json['screenVersion'] as num?)?.toInt() ?? 0,
      sourceSequence: (json['sourceSequence'] as num?)?.toInt() ?? 0,
      rows: (json['rows'] as num?)?.toInt() ?? 0,
      columns: (json['columns'] as num?)?.toInt() ?? 0,
      cursorRow: (json['cursorRow'] as num?)?.toInt() ?? 0,
      cursorColumn: (json['cursorColumn'] as num?)?.toInt() ?? 0,
      cursorVisible: json['cursorVisible'] as bool? ?? true,
      activeBuffer: (json['activeBuffer'] as String?) ?? 'primary',
      operations: rawOperations
          .map(
            (item) => TerminalScreenPatchOperation.fromJson(
              Map<String, dynamic>.from(item as Map),
            ),
          )
          .toList(growable: false),
    );
  }
}

class TerminalScreenPatchOperation {
  const TerminalScreenPatchOperation({
    required this.type,
    required this.startRow,
    required this.lines,
  });

  final String type;
  final int startRow;
  final List<String> lines;

  factory TerminalScreenPatchOperation.fromJson(Map<String, dynamic> json) {
    final rawLines = (json['lines'] as List?) ?? const <dynamic>[];
    return TerminalScreenPatchOperation(
      type: (json['type'] as String?) ?? '',
      startRow: (json['startRow'] as num?)?.toInt() ?? 0,
      lines: rawLines.map((item) => item as String? ?? '').toList(growable: false),
    );
  }
}