import 'package:flutter/material.dart';

enum OrderStatus {
  all,
  pendingPayment,
  pendingVerification,
  verified,
  pendingRefund,
  refunded,
}

class OrderItem {
  final String id;
  final String orderNo;
  final String customerName;
  final String customerPhone;
  final String productName;
  final double amount;
  final OrderStatus status;
  final DateTime createdAt;
  final DateTime? paidAt;
  final DateTime? verifiedAt;
  final DateTime? refundedAt;
  final String? verifyCode;
  final int quantity;
  final String? remark;
  final String? scenicSpot;

  const OrderItem({
    required this.id,
    required this.orderNo,
    required this.customerName,
    required this.customerPhone,
    required this.productName,
    required this.amount,
    required this.status,
    required this.createdAt,
    this.paidAt,
    this.verifiedAt,
    this.refundedAt,
    this.verifyCode,
    required this.quantity,
    this.remark,
    this.scenicSpot,
  });

  String get statusText {
    switch (status) {
      case OrderStatus.pendingPayment:
        return '待支付';
      case OrderStatus.pendingVerification:
        return '待核销';
      case OrderStatus.verified:
        return '已核销';
      case OrderStatus.pendingRefund:
        return '待退款';
      case OrderStatus.refunded:
        return '已退款';
      default:
        return '全部';
    }
  }

  Color get statusColor {
    switch (status) {
      case OrderStatus.pendingPayment:
        return const Color(0xFFF59E0B);
      case OrderStatus.pendingVerification:
        return const Color(0xFF3B82F6);
      case OrderStatus.verified:
        return const Color(0xFF10B981);
      case OrderStatus.pendingRefund:
        return const Color(0xFFEF4444);
      case OrderStatus.refunded:
        return const Color(0xFF64748B);
      default:
        return const Color(0xFF64748B);
    }
  }

  bool get canVerify => status == OrderStatus.pendingVerification;
  bool get canRefund => status == OrderStatus.pendingVerification || status == OrderStatus.verified;

  OrderItem copyWith({
    String? id,
    String? orderNo,
    String? customerName,
    String? customerPhone,
    String? productName,
    double? amount,
    OrderStatus? status,
    DateTime? createdAt,
    DateTime? paidAt,
    DateTime? verifiedAt,
    DateTime? refundedAt,
    String? verifyCode,
    int? quantity,
    String? remark,
    String? scenicSpot,
  }) {
    return OrderItem(
      id: id ?? this.id,
      orderNo: orderNo ?? this.orderNo,
      customerName: customerName ?? this.customerName,
      customerPhone: customerPhone ?? this.customerPhone,
      productName: productName ?? this.productName,
      amount: amount ?? this.amount,
      status: status ?? this.status,
      createdAt: createdAt ?? this.createdAt,
      paidAt: paidAt ?? this.paidAt,
      verifiedAt: verifiedAt ?? this.verifiedAt,
      refundedAt: refundedAt ?? this.refundedAt,
      verifyCode: verifyCode ?? this.verifyCode,
      quantity: quantity ?? this.quantity,
      remark: remark ?? this.remark,
      scenicSpot: scenicSpot ?? this.scenicSpot,
    );
  }

  Map<String, dynamic> toJson() => {
        'id': id,
        'orderNo': orderNo,
        'customerName': customerName,
        'customerPhone': customerPhone,
        'productName': productName,
        'amount': amount,
        'status': status.name,
        'createdAt': createdAt.toIso8601String(),
        'paidAt': paidAt?.toIso8601String(),
        'verifiedAt': verifiedAt?.toIso8601String(),
        'refundedAt': refundedAt?.toIso8601String(),
        'verifyCode': verifyCode,
        'quantity': quantity,
        'remark': remark,
        'scenicSpot': scenicSpot,
      };

  factory OrderItem.fromJson(Map<String, dynamic> json) => OrderItem(
        id: json['id'] ?? '',
        orderNo: json['orderNo'] ?? '',
        customerName: json['customerName'] ?? '',
        customerPhone: json['customerPhone'] ?? '',
        productName: json['productName'] ?? '',
        amount: (json['amount'] ?? 0.0).toDouble(),
        status: OrderStatus.values.byName(json['status'] ?? 'pendingPayment'),
        createdAt: DateTime.tryParse(json['createdAt'] ?? '') ?? DateTime.now(),
        paidAt: json['paidAt'] != null ? DateTime.tryParse(json['paidAt']) : null,
        verifiedAt: json['verifiedAt'] != null ? DateTime.tryParse(json['verifiedAt']) : null,
        refundedAt: json['refundedAt'] != null ? DateTime.tryParse(json['refundedAt']) : null,
        verifyCode: json['verifyCode'],
        quantity: json['quantity'] ?? 1,
        remark: json['remark'],
        scenicSpot: json['scenicSpot'],
      );
}