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? shipmentID;
  String? shipmentNumber;
  String? senderID;
  String? senderFCSID;
  String? senderName;

  String? boxNumber;
  String? status;
  String? cargoDesc;
  String? desc;
  double width;
  double height;
  double length;
  int? shipmentWeight;
  bool? isChecked;
  bool? isShipmentCarton;
  String? cartonType;
  String? fcsID;
  String? userName;
  String? userID;
  String? fcsShipmentID;
  String? fcsShipmentNumber;
  String? mixCartonID;
  String? mixCartonNumber;
  String? cartonSizeID;
  String? cartonSizeName;
  double? cartonWeight;

  int rate;
  int weight;
  String? packageType;
  String? pickUpID;
  List<String> photos = [];
  String? remark;
  DateTime? arrivedDate;
  String? cartonNumber;

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

  DeliveryAddress? deliveryAddress;
  Shipment? shipment;

  //for mix box
  String? mixBoxType;
  List<Carton> mixCartons;
  List<String> mixCartonIDs;

  int get amount => rate != null && weight != null ? (rate * weight) : 0;

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

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

  int getShipmentWeight(double volumetricRatio) {
    if (length == null ||
        length <= 0 ||
        width == null ||
        width <= 0 ||
        height == null ||
        height <= 0 ||
        volumetricRatio == null ||
        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 != null ? (discountByWeight.discount) : 0);
      double amount = e.weight * r;
      total += amount;
    });
    return total + wdAmount;
  }

  List<ShipmentStatus> shipmentHistory;

  Carton(
      {this.id,
      this.shipmentID,
      this.shipmentNumber,
      this.senderID,
      this.senderFCSID,
      this.senderName,
      this.boxNumber,
      this.desc,
      this.width = 0,
      this.height = 0,
      this.length = 0,
      this.shipmentWeight,
      this.isChecked = false,
      this.cartonType,
      this.fcsID,
      this.userID,
      this.userName,
      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.cartonNumber,
      this.fcsShipmentID,
      this.fcsShipmentNumber,
      this.packageIDs = const [],
      this.mixCartonID,
      this.mixCartonNumber,
      this.isShipmentCarton = false,
      this.deliveryAddress,
      this.cartonSizeID,
      this.cartonSizeName,
      this.mixBoxType,
      this.mixCartons = const [],
      this.mixCartonIDs = const [],
      this.cartonWeight});

  Map<String, dynamic> toMap() {
    List _cargoTypes = cargoTypes.map((c) => c.toMap()).toList();
    List _packages = packages.map((c) => c.toJson()).toList();
    List _mixCartons = mixCartons.map((c) => c.toJson()).toList();
    return {
      'id': id,
      'fcs_shipment_id': fcsShipmentID,
      'user_id': userID,
      'cargo_types': _cargoTypes,
      'packages': _packages,
      'length': length,
      'width': width,
      'height': height,
      'delivery_address': deliveryAddress?.toMap(),
      'carton_type': cartonType,
      'mix_carton_id': mixCartonID,
      'mix_box_type': mixBoxType,
      'mix_cartons': _mixCartons,
      'sender_id': senderID,
      'sender_fcs_id': senderFCSID,
      'sender_name': senderName
    };
  }

  factory Carton.fromMap(Map<String, dynamic> map, String docID) {
    var _arrivedDate = (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.fromMap(e, e["id"])).toList();
    var mixCartonsMaps =
        List<Map<String, dynamic>>.from(map['mix_cartons'] ?? []);
    var _mixCartons =
        mixCartonsMaps.map((e) => Carton.fromMap(e, e["id"])).toList();

    return Carton(
      id: docID,
      arrivedDate: _arrivedDate != null ? _arrivedDate.toDate() : null,
      shipmentID: map['shipment_id'],
      shipmentNumber: map['shipment_number'],
      // receiverNumber: map['receiver_number'],
      boxNumber: map['box_number'],
      length: double.tryParse(map['length'].toString()) ?? 0,
      width: double.tryParse(map['width'].toString()) ?? 0,
      height: double.tryParse(map['height'].toString()) ?? 0,
      userName: map['user_name'],
      fcsID: map['fcs_id'],
      cartonType: map['carton_type'],
      cartonNumber: map['carton_number'],
      userID: map['user_id'],
      fcsShipmentID: map['fcs_shipment_id'],
      fcsShipmentNumber: map['fcs_shipment_number'],
      isShipmentCarton: map['is_shipment_carton'],
      mixCartonID: map['mix_carton_id'],
      mixCartonNumber: map['mix_carton_number'],
      status: map['status'],
      packageIDs: List<String>.from(map['package_ids'] ?? []),
      deliveryAddress: _da,
      cargoTypes: cargoTypes,
      mixBoxType: map['mix_box_type'],
      mixCartons: _mixCartons,
      senderID: map['sender_id'],
      senderFCSID: map['sender_fcs_id'],
      senderName: map['sender_name'],
      mixCartonIDs: List<String>.from(map['mix_carton_ids'] ?? []),
      cartonWeight: (map['carton_weight'] ?? 0).toDouble(),
    );
  }

  Map<String, dynamic> toJson() {
    List _cargoTypes = cargoTypes.map((c) => c.toMap()).toList();
    List _packages = packages.map((c) => c.toJson()).toList();
    List _mixCartons = mixCartons.map((c) => c.toJson()).toList();
    return {
      'id': id,
      'fcs_shipment_id': fcsShipmentID,
      'user_id': userID,
      'cargo_types': _cargoTypes,
      'packages': _packages,
      'length': length,
      'width': width,
      'height': height,
      'delivery_address': deliveryAddress?.toMap(),
      'carton_type': cartonType,
      'mix_carton_id': mixCartonID,
      'mix_box_type': mixBoxType,
      'mix_cartons': _mixCartons,
      'sender_id': senderID,
      'sender_fcs_id': senderFCSID,
      'sender_name': senderName
    };
  }

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

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