import 'dart:async';
import 'package:flutter/foundation.dart';
import 'package:flutter_evdo_app/entity/my.dart';
import 'package:flutter_evdo_app/generated/locales.g.dart';
import 'package:flutter_evdo_app/http/apis/my.dart';
import 'package:flutter_evdo_app/utils/function.dart';
import 'package:flutter_evdo_app/utils/shared_preferences.dart';
import 'package:flutter_evdo_app/values/defines.dart';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'package:get/get.dart';
import 'package:in_app_purchase/in_app_purchase.dart';
import 'package:in_app_purchase_storekit/in_app_purchase_storekit.dart';
import 'package:in_app_purchase_storekit/store_kit_wrappers.dart';

class ApplePurchaseUtils {
  static void pay(
      {required PurchaseParam purchaseParam,
      required InAppPurchase inAppPurchase,
      required String order}) async {
    inAppPurchase.buyNonConsumable(purchaseParam: purchaseParam);
    var transactions = await SKPaymentQueueWrapper().transactions();
    for (var skPaymentTransactionWrapper in transactions) {
      SKPaymentQueueWrapper().finishTransaction(skPaymentTransactionWrapper);
    }
    SharedPreferencesUtils.setString(Defines.appleOrderInfo, order);
  }

  static dispose({required InAppPurchase inAppPurchase}) {
    //苹果取消代理
    final InAppPurchaseStoreKitPlatformAddition iosPlatformAddition =
        inAppPurchase
            .getPlatformAddition<InAppPurchaseStoreKitPlatformAddition>();
    iosPlatformAddition.setDelegate(null);
    ApplePurchaseUtils.subscription?.cancel();
    ApplePurchaseUtils.subscription = null;
  }

  static PurchaseParam? getPurchaseParam(
      {required List<ProductDetails> productDetails,
      required String productId}) {
    if (productDetails.isEmpty) {
      SmartDialog.showToast("${LocaleKeys.member_noAvailableProducts.tr}!");
      return null;
    }

    List<ProductDetails>? payProducts =
        productDetails.where((element) => element.id == productId).toList();
    if (payProducts.isEmpty) {
      SmartDialog.showToast(
          "${LocaleKeys.member_subscriptionPackageException.tr}!");
      return null;
    }
    PurchaseParam purchaseParam = PurchaseParam(
      productDetails: payProducts[0],
    );
    return purchaseParam;
  }

  static void _listenToPurchaseUpdated(
      List<PurchaseDetails> purchaseDetailsList, ParamVoidCallback onSuccess,
      {required InAppPurchase inAppPurchase}) async {
    for (final PurchaseDetails purchaseDetails in purchaseDetailsList) {
      if (purchaseDetails.status == PurchaseStatus.pending) {
        SmartDialog.showLoading();
      } else {
        SmartDialog.dismiss();
        if (purchaseDetails.status == PurchaseStatus.error) {
          SmartDialog.showToast("${LocaleKeys.member_paymentException.tr}！");
        } else if (purchaseDetails.status == PurchaseStatus.purchased ||
            purchaseDetails.status == PurchaseStatus.restored) {
          AppStorePurchaseDetails appstoreDetail =
              purchaseDetails as AppStorePurchaseDetails;
          String appleOrderReceipt =
              appstoreDetail.verificationData.serverVerificationData;
          SharedPreferencesUtils.setString(
              Defines.appleOrderReceipt, appleOrderReceipt);
          String orderSn = await SharedPreferencesUtils.getString(
              Defines.appleOrderInfo, '');
          debugPrint("订单状态:${purchaseDetails.status}");
          if (orderSn.isEmpty) return;
          await MyApi.applePayVerify(
              orderSn, appleOrderReceipt, Defines.isDebug);
          SharedPreferencesUtils.setString(Defines.appleOrderInfo, "");
          SharedPreferencesUtils.setString(Defines.appleOrderReceipt, "");
          SmartDialog.showToast(LocaleKeys.member_paymentSuccessful.tr);

          onSuccess();
        }

        if (purchaseDetails.pendingCompletePurchase) {
          await inAppPurchase.completePurchase(purchaseDetails);
        }
      }
    }
  }

  static StreamSubscription<List<PurchaseDetails>>? subscription;
  static List<String> getProductIds(List<VipGoodListElement>? list) {
    List<String> products = [];
    if (list == null || list.isEmpty) return products;
    for (var i = 0; i < list.length; i++) {
      VipGoodListElement goods = list[i];
      products.add(goods.productId);
    }
    return products;
  }

  ///根据商品id获取苹果商品详情
  static initApplePay(
    List<VipGoodListElement>? goods, {
    required ParamVoidCallback onPaySuccess,
    required ParamSingleCallback<List<ProductDetails>> onInitSuccess,
    required InAppPurchase inAppPurchase,
  }) async {
    if (goods == null || goods.isEmpty) return;
    List<String> productIds = getProductIds(goods);
    final Stream<List<PurchaseDetails>> purchaseUpdated =
        inAppPurchase.purchaseStream;
    subscription =
        purchaseUpdated.listen((List<PurchaseDetails> purchaseDetailsList) {
      _listenToPurchaseUpdated(purchaseDetailsList, onPaySuccess,
          inAppPurchase: inAppPurchase);
    }, onDone: () {
      subscription?.cancel();
      subscription = null;
    }, onError: (Object error) {
      // handle error here.
    });
    final bool isAvailable = await inAppPurchase.isAvailable();
    if (!isAvailable) {
      SmartDialog.showToast(LocaleKeys.member_paymentUnavailable.tr);
    }
    final InAppPurchaseStoreKitPlatformAddition iosPlatformAddition =
        inAppPurchase
            .getPlatformAddition<InAppPurchaseStoreKitPlatformAddition>();
    await iosPlatformAddition.setDelegate(ExamplePaymentQueueDelegate());

    final ProductDetailsResponse productDetailResponse =
        await inAppPurchase.queryProductDetails(productIds.toSet());
    if (productDetailResponse.error != null) {
      SmartDialog.showToast(
          LocaleKeys.member_failedToRetrievePaymentProduct.tr);
      return;
    }

    if (productDetailResponse.productDetails.isEmpty) {
      return;
    }

    onInitSuccess(productDetailResponse.productDetails);
  }
}

class ExamplePaymentQueueDelegate implements SKPaymentQueueDelegateWrapper {
  @override
  bool shouldContinueTransaction(
      SKPaymentTransactionWrapper transaction, SKStorefrontWrapper storefront) {
    return true;
  }

  @override
  bool shouldShowPriceConsent() {
    return false;
  }
}

    var transactions = await SKPaymentQueueWrapper().transactions();
    for (var skPaymentTransactionWrapper in transactions) {
      SKPaymentQueueWrapper().finishTransaction(skPaymentTransactionWrapper);
    }