import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:fcs/domain/entities/discount_by_weight.dart';
import 'package:fcs/domain/entities/rate.dart';
import 'package:fcs/domain/entities/shipment.dart';
import 'package:fcs/domain/vo/shipment_status.dart';
import 'package:fcs/domain/vo/delivery_address.dart';

import 'cargo_type.dart';
import 'package.dart';

class Carton {
  String? id;
  String? cartonNumber;
  String? fcsShipmentID;
  String? fcsShipmentNumber;

  String? senderID;
  String? senderFCSID;
  String? senderName;

  String? consigneeFCSID;
  String? consigneeName;
  String? consigneeID;

  double width;
  double height;
  double length;

  String? status;
  String? cargoDesc;
  String? desc;

  int? shipmentWeight;
  bool? isChecked;
  bool? isShipmentCarton;
  String? cartonType;

  String? mixCartonNumber;

  String? lastMile;
  String? cartonSizeType;

  double cartonWeight;
  String? billTo;
  bool isSelected;

  int rate;
  int weight;
  String? packageType;
  String? pickUpID;
  List<String> photoUrls;
  String? remark;
  DateTime? arrivedDate;

  List<String> packageIDs;
  List<Package> packages;
  List<CargoType> cargoTypes = [];
  List<CargoType> surchareItems = [];

  DeliveryAddress? deliveryAddress;
  Shipment? shipment;

  //for mix carton
  List<Carton> cartons;
  List<String> cartonIDs;

  int get amount => (rate * weight);

  // String get packageNumber =>
  //     shipmentNumber + "-" + receiverNumber + " #" + boxNumber;

  double get actualWeight =>
      cargoTypes.isEmpty ? 0 : cargoTypes.fold(0, (p, e) => e.weight + p);

  int getShipmentWeight(double volumetricRatio) {
    if (length <= 0 || width <= 0 || height <= 0 || volumetricRatio <= 0)
      return 0;

    return ((length * width * height) / volumetricRatio).round();
  }

  /// getCargoTypeForCalWeight returns carton with shipment weight
  List<CargoType> getCargoTypeForCalWeight(double volumetricRatio) {
    // get shipment weight
    double volume = length * width * height;
    double sw = volume / volumetricRatio;

    // get actual weight
    double aw = cargoTypes.fold(0.0, (p, c) => p + c.weight);
    if (aw == 0 || sw == 0) return [];

    cargoTypes.forEach((e) {
      double calWeight = aw > sw ? e.weight : (e.weight / aw) * sw;
      e.calWeight = calWeight;
    });
    return cargoTypes;
  }

  /// calAmount returns total amount
  double calAmount(Rate rate) {
    // get shipment weight
    int sw = getShipmentWeight(rate.volumetricRatio);

    // get actual weight
    double aw = cargoTypes.fold(0.0, (p, c) => p + c.weight);
    if (aw == 0 || sw == 0) return 0;

    double wd = sw - aw;
    wd = wd - rate.diffDiscountWeight;
    double wdAmount = wd > 0 ? wd * rate.diffWeightRate : 0;
    DiscountByWeight discountByWeight = rate.getDiscountByWeight(aw);

    double total = 0;
    cargoTypes.forEach((e) {
      double r = e.rate - (discountByWeight.discount);
      double amount = e.weight * r;
      total += amount;
    });
    return total + wdAmount;
  }

  List<ShipmentStatus> shipmentHistory;

  Carton(
      {this.id,
      this.senderID,
      this.senderFCSID,
      this.senderName,
      this.desc,
      this.width = 0,
      this.height = 0,
      this.length = 0,
      this.shipmentWeight,
      this.isChecked = false,
      this.cartonType,
      this.consigneeFCSID,
      this.consigneeID,
      this.consigneeName,
      this.rate = 0,
      this.weight = 0,
      this.packageType,
      this.pickUpID,
      this.remark,
      this.status,
      this.arrivedDate,
      this.cargoDesc,
      this.shipmentHistory = const [],
      this.packages = const [],
      this.cargoTypes = const [],
      this.surchareItems = const [],
      this.cartonNumber,
      this.billTo,
      this.fcsShipmentID,
      this.fcsShipmentNumber,
      this.packageIDs = const [],
      this.mixCartonNumber,
      this.isShipmentCarton = false,
      this.deliveryAddress,
      this.cartonSizeType,
      this.lastMile,
      this.cartons = const [],
      this.cartonIDs = const [],
      this.cartonWeight = 0,
      this.photoUrls = const [],
      this.isSelected = false});

  Map<String, dynamic> toMap() {
    var _types = cargoTypes.where((t) => t.weight != 0).toList();
    var _cargoTypes = _types.map((c) => c.toMapForCargo()).toList();
    
    var _packagesIds = packages.map((c) => c.id).toList();

    var _surchareItems =
        surchareItems.map((c) => c.toMapForSurcharge()).toList();

    return {
      'id': id,
      'carton_type': cartonType,
      'fcs_shipment_id': fcsShipmentID,
      'sender_user_id': senderID,
      'consignee_user_id': consigneeID,
      'bill_to': billTo,
      'last_mile': lastMile,
      'length': length,
      'width': width,
      'height': height,
      'package_ids': _packagesIds,
      'cargo_types': _cargoTypes,
      'surcharge_items': _surchareItems,
    };
  }

  Map<String, dynamic> toMapForMix() {
    var _cartonIds = cartons.map((c) => c.id).toList();

    return {
      'id': id,
      'carton_type': cartonType,
      'fcs_shipment_id': fcsShipmentID,
      'length': length,
      'width': width,
      'height': height,
      'carton_ids': _cartonIds,
    };
  }

  factory Carton.fromMap(Map<String, dynamic> map, String docID) {
    var _arrivedDate =
        map['arrived_date'] == null ? null : (map['arrived_date'] as Timestamp);
    var da = map['delivery_address'];
    var _da = da != null ? DeliveryAddress.fromMap(da, da["id"]) : null;

    var cargoTypesMaps =
        List<Map<String, dynamic>>.from(map['cargo_types'] ?? []);
    var cargoTypes = cargoTypesMaps
        .map((e) => CargoType.fromMapForCargo(e, e["id"]))
        .toList();

    var surchargeItemMaps =
        List<Map<String, dynamic>>.from(map['surcharge_items'] ?? []);
    var surchageItems = surchargeItemMaps
        .map((e) => CargoType.fromMapForsurcharge(e, e["id"]))
        .toList();

    List<String> _photoUrls =
        map['photo_urls'] == null ? [] : List.from(map['photo_urls']);

    return Carton(
        id: docID,
        arrivedDate: _arrivedDate != null ? _arrivedDate.toDate() : null,
        length: double.tryParse(map['length'].toString()) ?? 0,
        width: double.tryParse(map['width'].toString()) ?? 0,
        height: double.tryParse(map['height'].toString()) ?? 0,
        cartonType: map['carton_type'],
        cartonNumber: map['carton_number'],
        fcsShipmentID: map['fcs_shipment_id'],
        fcsShipmentNumber: map['fcs_shipment_number'],
        status: map['status'],
        packageIDs: List<String>.from(map['package_ids'] ?? []),
        deliveryAddress: _da,
        cargoTypes: cargoTypes,
        surchareItems: surchageItems,
        senderID: map['sender_user_id'],
        senderFCSID: map['sender_fcs_id'],
        senderName: map['sender_user_name'],
        consigneeID: map['consignee_user_id'],
        consigneeName: map['consignee_user_name'],
        consigneeFCSID: map['consignee_fcs_id'],
        cartonIDs: List<String>.from(map['carton_ids'] ?? []),
        cartonWeight: (map['carton_weight'] ?? 0).toDouble(),
        photoUrls: _photoUrls,
        billTo: map['bill_to'] ?? '',
        lastMile: map['last_mile'] ?? "");
  }

  @override
  bool operator ==(Object other) => other is Carton && other.id == id;

  @override
  int get hashCode => id.hashCode;
}