//
//  IAPAgnet.m
//  XenonSDK
//
//  Created by SAGESSE on 2019/5/31.
//  Copyright © 2019 SAGESSE. All rights reserved.
//

#if SDK_HAS_IAP_PAYMENT

#import "IAPAgnet.h"
#import "XSNetwork.h"

@interface IAPAgnet ()
@end

@implementation IAPAgnet

- (void)prepare {
    [SKPaymentQueue.defaultQueue addTransactionObserver: self];
}
- (void)clean {
    [SKPaymentQueue.defaultQueue removeTransactionObserver: self];
}

- (void)finishTransaction:(SKPaymentTransaction*)transaction {
    [SKPaymentQueue.defaultQueue finishTransaction:transaction];
}

- (void)failure:(SKPaymentTransaction*)transaction {
    
    //...
    
    [self finishTransaction:transaction];
    
    if (self.callback == nil) {
        return;
    }
    
    if (transaction.error != nil) {
        if (transaction.error.code == SKErrorPaymentCancelled) {
            self.callback(nil, [XSNetwork errorWithCode:-3 message:@"取消购买"]);
        } else {
            self.callback(nil, transaction.error);
        }
    }

}

- (void)success:(SKPaymentTransaction*)transaction {
    
    [self finishTransaction:transaction];

    if (self.callback == nil) {
        return;
    }

    NSURL* url = NSBundle.mainBundle.appStoreReceiptURL;
    NSData* data = [NSData dataWithContentsOfURL:url];
    
    if (data == nil) {
        self.callback(nil, [XSNetwork errorWithCode:-3 message:@"票据丢失"]);
        return;
    }
    if (![transaction.payment.applicationUsername isEqualToString:self.orderId]) {
        self.callback(nil, [XSNetwork errorWithCode:-3 message:@"订单未找到"]);
        return;
    }
    
    self.callback([data base64EncodedStringWithOptions:0], nil);
}

//查询成功后的回调
- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response {
    
    if ([response.invalidProductIdentifiers containsObject:self.productId]) {
        self.callback(nil, [XSNetwork errorWithCode:-3 message:@"产品暂时不可用，请检查苹果后台"]);
        return;
    }
    
    for (SKProduct* product in response.products) {
        
        SKMutablePayment* payment = [SKMutablePayment paymentWithProduct:product];;
        payment.applicationUsername = self.orderId;
        [SKPaymentQueue.defaultQueue addPayment:payment];
        
        // Only one is allowed.
        return;
    }
    
    // No in-app purchase found, purchase failed.
    self.callback(nil, [XSNetwork errorWithCode:-3 message:@"产品未找到, 请查检查后台"]);
}

//回调
- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray<SKPaymentTransaction *> *)transactions {
    
    //NSLog(@"调了几次这个方法~~");
    
    for (SKPaymentTransaction* transaction in transactions) {
        switch (transaction.transactionState) {
            case SKPaymentTransactionStatePurchased:
                [self success:transaction];
                break;
                
            case SKPaymentTransactionStateFailed:
                [self failure:transaction];
                break;
                
            case SKPaymentTransactionStateRestored:
                [self success:transaction];
                break;
                
            default:
                break;
        }
    }
}

@end

#endif