//
//  IAPVerifyTransactionObj.m
//

#import "IAPVerifyTransactionObj.h"
#import "PayVM.h"
#import "KBAuthManager.h"
#import "KBHUD.h"
//#import "KBLoginSheetViewController.h"
#import "KBBizCode.h"

NSNotificationName const KBIAPDidCompletePurchaseNotification = @"KBIAPDidCompletePurchaseNotification";
@interface IAPVerifyTransactionObj ()
@property (nonatomic, strong) PayVM *payVM;
@end

@implementation IAPVerifyTransactionObj

- (instancetype)init {
    if (self = [super init]) {
        _payVM = [PayVM new];
    }
    return self;
}

- (void)verifyReceipt:(NSString *)receipt
           completion:(void (^)(BOOL success, NSString * _Nullable message, NSInteger statusCode))completion {
    if (![receipt isKindOfClass:NSString.class] || receipt.length == 0) {
        if (completion) {
            completion(NO, KBLocalized(@"Receipt missing"), KBBizCodeReceiptError);
        }
        return;
    }
    NSDictionary *params = @{ @"receipt": receipt ?: @"" };
    __weak typeof(self) weakSelf = self;
    [self.payVM applePayReqWithParams:params needShow:NO completion:^(NSInteger sta, NSString * _Nullable msg) {
        dispatch_async(dispatch_get_main_queue(), ^{
            __strong typeof(weakSelf) self = weakSelf;
            (void)self;
            BOOL success = (sta == KBBizCodeSuccess);
            NSString *tip = msg ?: (success ? KBLocalized(@"Success") : KBLocalized(@"Payment failed"));
            if (completion) {
                completion(success, tip, sta);
            }
        });
    }];
}

#pragma mark - FGIAPVerifyTransaction

- (void)pushSuccessTradeReultToServer:(NSString *)receipt
                           transaction:(SKPaymentTransaction *)transaction
                              complete:(FGIAPVerifyTransactionPushCallBack)handler {
    if (![self checkLogin]) { return; }

    KBLOG(@"receipt = %@", receipt);
    KBLOG(@"transactionId = %@, originalId = %@", transaction.transactionIdentifier,transaction.originalTransaction.transactionIdentifier);
#if DEBUG
//    [self kb_debugLogReceipt:receipt transaction:transaction];
#endif
#if DEBUG
//    [self kb_debugLogReceipt:receipt transaction:transaction];
#endif


    __weak typeof(self) weakSelf = self;
    [KBHUD showWithStatus:@"请稍等..."];
    [self verifyReceipt:receipt completion:^(BOOL success, NSString * _Nullable message, NSInteger statusCode) {
        __strong typeof(weakSelf) self = weakSelf;
        (void)self;
        if (success) {
            [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
            [KBHUD showInfo:@"Success"];
            [[NSNotificationCenter defaultCenter] postNotificationName:KBIAPDidCompletePurchaseNotification object:nil];
            if (handler) handler(KBLocalized(@"Success"), nil);
        } else if (statusCode == KBBizCodeReceiptError) {
            [KBHUD dismiss];
            [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
        } else {
            [KBHUD showError:message ?: KBLocalized(@"Failed")];
            if (handler) handler(message ?: KBLocalized(@"Failed"), nil);
        }
    }];
}

#pragma mark - Helpers

- (BOOL)checkLogin {
    BOOL loggedIn = [[KBUserSessionManager shared] isLoggedIn];
    if (!loggedIn) {
        [[KBUserSessionManager shared] goLoginVC];
    }
    return YES;
}

#if DEBUG
- (void)kb_debugLogReceipt:(NSString *)receipt transaction:(SKPaymentTransaction *)transaction {
    if (![receipt isKindOfClass:[NSString class]] || receipt.length == 0) {
        KBLOG(@"[IAPVerifyTransactionObj] debug receipt empty");
        return;
    }
    NSURL *url = [NSURL URLWithString:@"https://sandbox.itunes.apple.com/verifyReceipt"];
    if (!url) { return; }

    NSDictionary *payload = @{ @"receipt-data": receipt, @"exclude-old-transactions": @NO };
    NSError *jsonError = nil;
    NSData *body = [NSJSONSerialization dataWithJSONObject:payload options:0 error:&jsonError];
    if (jsonError || !body) {
        KBLOG(@"[IAPVerifyTransactionObj] debug receipt json error: %@", jsonError);
        return;
    }

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    request.HTTPMethod = @"POST";
    request.HTTPBody = body;
    [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
    request.timeoutInterval = 30;

    NSURLSessionDataTask *task = [[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
        if (error) {
            KBLOG(@"[IAPVerifyTransactionObj] debug receipt request error: %@", error);
            return;
        }
        if (data.length == 0) {
            KBLOG(@"[IAPVerifyTransactionObj] debug receipt empty response");
            return;
        }

        NSError *parseError = nil;
        NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:0 error:&parseError];
        if (!json || parseError) {
            KBLOG(@"[IAPVerifyTransactionObj] debug receipt parse error: %@", parseError);
            return;
        }

        NSNumber *status = json[@"status"];
        KBLOG(@"[IAPVerifyTransactionObj] receipt status: %@, env transaction: %@ / %@", status, transaction.transactionIdentifier, transaction.originalTransaction.transactionIdentifier);

        void (^logEntries)(NSArray *entries, NSString *label) = ^(NSArray *entries, NSString *label) {
            for (NSDictionary *item in entries) {
                KBLOG(@"[IAPVerifyTransactionObj][%@] product:%@ transaction:%@ original:%@ purchase_date:%@", label, item[@"product_id"], item[@"transaction_id"], item[@"original_transaction_id"], item[@"purchase_date"]);
            }
        };

        NSArray *latestInfos = json[@"latest_receipt_info"];
        if ([latestInfos isKindOfClass:[NSArray class]] && latestInfos.count > 0) {
            logEntries(latestInfos, @"latest_receipt_info");
        }

        NSDictionary *receiptDict = json[@"receipt"];
        NSArray *inAppInfos = receiptDict[@"in_app"];
        if ([inAppInfos isKindOfClass:[NSArray class]] && inAppInfos.count > 0) {
            logEntries(inAppInfos, @"receipt.in_app");
        }
    }];
    [task resume];
}
#endif

@end