import 'package:flutter/material.dart';

enum WorkOrderStatus { all, pending, processing, completed }

class WorkOrder {
  final String id;
  final String title;
  final String description;
  final WorkOrderStatus status;
  final String creatorName;
  final String? assigneeName;
  final DateTime createdAt;
  final DateTime? completedAt;
  final String priority;
  final String category;
  final List<String> images;
  final String? location;

  const WorkOrder({
    required this.id,
    required this.title,
    required this.description,
    required this.status,
    required this.creatorName,
    this.assigneeName,
    required this.createdAt,
    this.completedAt,
    required this.priority,
    required this.category,
    required this.images,
    this.location,
  });

  String get statusText {
    switch (status) {
      case WorkOrderStatus.pending:
        return '待接单';
      case WorkOrderStatus.processing:
        return '处理中';
      case WorkOrderStatus.completed:
        return '已完成';
      default:
        return '全部';
    }
  }

  Color get statusColor {
    switch (status) {
      case WorkOrderStatus.pending:
        return const Color(0xFFF59E0B);
      case WorkOrderStatus.processing:
        return const Color(0xFF3B82F6);
      case WorkOrderStatus.completed:
        return const Color(0xFF10B981);
      default:
        return const Color(0xFF64748B);
    }
  }

  WorkOrder copyWith({
    String? id,
    String? title,
    String? description,
    WorkOrderStatus? status,
    String? creatorName,
    String? assigneeName,
    DateTime? createdAt,
    DateTime? completedAt,
    String? priority,
    String? category,
    List<String>? images,
    String? location,
  }) {
    return WorkOrder(
      id: id ?? this.id,
      title: title ?? this.title,
      description: description ?? this.description,
      status: status ?? this.status,
      creatorName: creatorName ?? this.creatorName,
      assigneeName: assigneeName ?? this.assigneeName,
      createdAt: createdAt ?? this.createdAt,
      completedAt: completedAt ?? this.completedAt,
      priority: priority ?? this.priority,
      category: category ?? this.category,
      images: images ?? this.images,
      location: location ?? this.location,
    );
  }

  Map<String, dynamic> toJson() => {
        'id': id,
        'title': title,
        'description': description,
        'status': status.name,
        'creatorName': creatorName,
        'assigneeName': assigneeName,
        'createdAt': createdAt.toIso8601String(),
        'completedAt': completedAt?.toIso8601String(),
        'priority': priority,
        'category': category,
        'images': images,
        'location': location,
      };

  factory WorkOrder.fromJson(Map<String, dynamic> json) => WorkOrder(
        id: json['id'] ?? '',
        title: json['title'] ?? '',
        description: json['description'] ?? '',
        status: WorkOrderStatus.values.byName(json['status'] ?? 'pending'),
        creatorName: json['creatorName'] ?? '',
        assigneeName: json['assigneeName'],
        createdAt: DateTime.tryParse(json['createdAt'] ?? '') ?? DateTime.now(),
        completedAt: json['completedAt'] != null
            ? DateTime.tryParse(json['completedAt'])
            : null,
        priority: json['priority'] ?? 'normal',
        category: json['category'] ?? '',
        images: json['images'] != null ? List<String>.from(json['images']) : [],
        location: json['location'],
      );
}