water-management-system/mobile-app/lib/features/patrol/models/patrol_task_model.dart

/// 巡检任务模型
class PatrolTaskModel {
  final String id;
  final String taskName;
  final String taskCode;
  final String routeName;
  final String assignee;
  final String status; // pending, in_progress, completed, overdue
  final DateTime planDate;
  final int checkpointTotal;
  final int checkpointCompleted;
  final String? remark;

  PatrolTaskModel({
    required this.id,
    required this.taskName,
    required this.taskCode,
    required this.routeName,
    required this.assignee,
    required this.status,
    required this.planDate,
    required this.checkpointTotal,
    required this.checkpointCompleted,
    this.remark,
  });

  double get progress =>
      checkpointTotal > 0 ? checkpointCompleted / checkpointTotal : 0;

  factory PatrolTaskModel.fromJson(Map<String, dynamic> json) {
    return PatrolTaskModel(
      id: json['id']?.toString() ?? '',
      taskName: json['taskName'] ?? '',
      taskCode: json['taskCode'] ?? '',
      routeName: json['routeName'] ?? '',
      assignee: json['assignee'] ?? '',
      status: json['status'] ?? 'pending',
      planDate: DateTime.tryParse(json['planDate'] ?? '') ?? DateTime.now(),
      checkpointTotal: json['checkpointTotal'] ?? 0,
      checkpointCompleted: json['checkpointCompleted'] ?? 0,
      remark: json['remark'],
    );
  }

  Map<String, dynamic> toJson() {
    return {
      'id': id,
      'taskName': taskName,
      'taskCode': taskCode,
      'routeName': routeName,
      'assignee': assignee,
      'status': status,
      'planDate': planDate.toIso8601String(),
      'checkpointTotal': checkpointTotal,
      'checkpointCompleted': checkpointCompleted,
      'remark': remark,
    };
  }
}