import 'dart:convert';

const kFreeProductID = "free";
const kStripe = "stripe";
const kAppStore = "appstore";
const kPlayStore = "playstore";

class Subscription {
  final int id;
  final String productID;
  final int storage;
  final String originalTransactionID;
  final String paymentProvider;
  final int expiryTime;
  final String price;
  final String period;
  final Attributes attributes;

  Subscription({
    this.id,
    this.productID,
    this.storage,
    this.originalTransactionID,
    this.paymentProvider,
    this.expiryTime,
    this.price,
    this.period,
    this.attributes,
  });

  bool isValid() {
    return expiryTime > DateTime.now().microsecondsSinceEpoch;
  }

  bool isYearlyPlan() {
    return 'year' == period;
  }

  Subscription copyWith({
    int id,
    String productID,
    int storage,
    String originalTransactionID,
    String paymentProvider,
    int expiryTime,
    String price,
    String period,
  }) {
    return Subscription(
      id: id ?? this.id,
      productID: productID ?? this.productID,
      storage: storage ?? this.storage,
      originalTransactionID:
          originalTransactionID ?? this.originalTransactionID,
      paymentProvider: paymentProvider ?? this.paymentProvider,
      expiryTime: expiryTime ?? this.expiryTime,
      price: price ?? this.price,
      period: period ?? this.period,
    );
  }

  Map<String, dynamic> toMap() {
    final map = <String, dynamic>{
      'id': id,
      'productID': productID,
      'storage': storage,
      'originalTransactionID': originalTransactionID,
      'paymentProvider': paymentProvider,
      'expiryTime': expiryTime,
      'price': price,
      'period': period,
      'attributes': attributes?.toJson()
    };
    return map;
  }

  factory Subscription.fromMap(Map<String, dynamic> map) {
    if (map == null) return null;
    return Subscription(
      id: map['id'],
      productID: map['productID'],
      storage: map['storage'],
      originalTransactionID: map['originalTransactionID'],
      paymentProvider: map['paymentProvider'],
      expiryTime: map['expiryTime'],
      price: map['price'],
      period: map['period'],
      attributes: map["attributes"] != null
          ? Attributes.fromJson(map["attributes"])
          : null,
    );
  }

  String toJson() => json.encode(toMap());

  factory Subscription.fromJson(String source) =>
      Subscription.fromMap(json.decode(source));

  @override
  String toString() {
    return 'Subscription{id: $id, productID: $productID, storage: $storage, originalTransactionID: $originalTransactionID, paymentProvider: $paymentProvider, expiryTime: $expiryTime, price: $price, period: $period, attributes: $attributes}';
  }

  @override
  bool operator ==(Object o) {
    if (identical(this, o)) return true;

    return o is Subscription &&
        o.id == id &&
        o.productID == productID &&
        o.storage == storage &&
        o.originalTransactionID == originalTransactionID &&
        o.paymentProvider == paymentProvider &&
        o.expiryTime == expiryTime &&
        o.price == price &&
        o.period == period;
  }

  @override
  int get hashCode {
    return id.hashCode ^
        productID.hashCode ^
        storage.hashCode ^
        originalTransactionID.hashCode ^
        paymentProvider.hashCode ^
        expiryTime.hashCode ^
        price.hashCode ^
        period.hashCode;
  }
}

class Attributes {
  bool isCancelled;
  String customerID;

  Attributes({
    this.isCancelled,
    this.customerID});

  Attributes.fromJson(dynamic json) {
    isCancelled = json["isCancelled"];
    customerID = json["customerID"];
  }

  Map<String, dynamic> toJson() {
    var map = <String, dynamic>{};
    map["isCancelled"] = isCancelled;
    map["customerID"] = customerID;
    return map;
  }

  @override
  String toString() {
    return 'Attributes{isCancelled: $isCancelled, customerID: $customerID}';
  }

}