//
//  UIViewController+Purchase.cpp
//  Unity-iPhone
//
//  Created by Hl Zhang on 2023/3/21.
//

#import "UIViewController+Purchase.h"
#import "UIViewController+Wallet.h"
#import "Utilities.h"
#import "StoreManager.h"
#import "StoreObserver.h"
#import "AppConfiguration.h"
#import <Foundation/Foundation.h>
#import "SKProduct+SKProductAdditions.h"
#include <string>
#import "NSString+Customer.h"
#include "JcWallet.h"

static Utilities *utility = nil;

@interface UIViewController (Purchase)
@property (nonatomic) NSString *currentFunId;
@end

@implementation UIViewController (Purchase)
-(void)initPurchaseEnv {
  utility = [[Utilities alloc] init];
  //  [[NSNotificationCenter defaultCenter] addObserver:self
  //                                           selector:@selector(handleProductRequestNotification:)
  //                                               name:PCSProductRequestNotification
  //                                             object:[StoreManager sharedInstance]];
  
  [[NSNotificationCenter defaultCenter] addObserver:self
                                           selector:@selector(handlePurchaseNotification:)
                                               name:PCSPurchaseNotification
                                             object:[StoreObserver sharedInstance]];
}
#pragma mark - Query products
/// Retrieves product information from the App Store.
- (void)queryProducts:(NSString *) funId products: (NSString *) products {
  if (utility == nil) {
    [self initPurchaseEnv];
  }
  if (products == nil || [products isEqualToString:@""]) {
    NSLog(@"queryProducts with empty products: %@", products);
    [self nativeCb:funId hasErr:YES dataStr:@"queryProducts with empty products"];
    return;
  }
  // split products to array
  NSArray *identifiers = [products componentsSeparatedByString:@","];
  // First, let's check whether the user is allowed to make purchases. Proceed if they are allowed. Display an alert, otherwise.
  if ([StoreObserver sharedInstance].isAuthorizedForPayments) {
    // Fetch the product information.
    [[StoreManager sharedInstance] fetchProductsMatchingIdentifiers:identifiers completionBlock: ^(PCSProductRequestStatus status, NSMutableArray *storeResponse){
      if (status == PCSStoreResponse) {
        // define json array to return
        NSMutableArray *jsonArray = [[NSMutableArray alloc] init];
        for (Section *section in storeResponse) {
          NSArray *content = section.elements;
          if ([section.name isEqualToString:PCSProductsAvailableProducts]) {
            for (SKProduct *product in content) {
              NSMutableDictionary *json = [[NSMutableDictionary alloc] init];
              [json setObject:product.productIdentifier forKey:@"id"];
              [json setObject:product.localizedTitle forKey:@"name"];
              [json setObject:product.localizedDescription forKey:@"description"];
              [json setObject:product.priceLocale.currencyCode forKey:@"currencyCode"];
              [json setObject:product.price.stringValue forKey:@"priceValue"];
              [json setObject:product.regularPrice forKey:@"priceShow"];
              [jsonArray addObject:json];
            }
          } else if ([section.name isEqualToString:PCSProductsInvalidIdentifiers]) {
            // if there are invalid product identifiers, show them.
            NSLog(@"Invalid product identifiers: %@", section.name);
            // [self nativeCb:funId hasErr:YES dataStr: section.name];
          }
        }
        NSError *error;
        NSData *jsonData = [NSJSONSerialization dataWithJSONObject:jsonArray options:NSJSONWritingPrettyPrinted error:&error];
        NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
        if (!jsonData) {
          NSLog(@"Got an error: %@", error);
          [self nativeCb:funId hasErr:YES dataStr: [NSString stringWithFormat:@"%@", error]];
        } else {
          NSLog(@"jsonString: %@", jsonString);
          [self nativeCb:funId hasErr:NO dataStr: jsonString];
        }

      } else if (status == PCSRequestFailed) {
        NSLog(@"Product request failed with message: %@", [StoreManager sharedInstance].message);
        [self nativeCb:funId hasErr:YES dataStr: [StoreManager sharedInstance].message];
      }
    }];
    
  } else {
    // Warn the user that they are not allowed to make purchases.
    NSLog(@"User is not allowed to make payments (Payments are disabled in Settings).");
    [self nativeCb:funId hasErr:YES dataStr: [NSString stringWithFormat:@"%@", PCSMessagesCannotMakePayments]];
  }
  
}

#pragma mark - Query Purchase
- (void)queryPurchase:(NSString *)funId {
  if (utility == nil) {
    [self initPurchaseEnv];
  }
  NSArray *transations = [[StoreObserver sharedInstance] queryPendingTransactions];
  // convert to json string
  NSError *error;
  NSData *jsonData = [NSJSONSerialization dataWithJSONObject:transations options:NSJSONWritingPrettyPrinted error:&error];
  NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
  [self nativeCb:funId hasErr:NO dataStr:jsonString];
}

#pragma mark - Begin Buy Product
- (void)beginBuy:(NSString *)funId productId:(NSString *)productId orderId:(NSString *)orderId {
  if (utility == nil) {
    [self initPurchaseEnv];
  }
  if (productId == nil || [productId isEqualToString:@""]) {
    NSLog(@"beginBy with empty productId: %@", productId);
    [self nativeCb:funId hasErr:YES dataStr:@"beginBy with empty productId"];
    return;
  }
  // check if currentFunId is empty
  if (self.currentFunId != nil && ![self.currentFunId isEqualToString:@""]) {
    NSLog(@"beginBy with currentFunId: %@", self.currentFunId);
    [self nativeCb:funId hasErr:YES dataStr:@"other purchase is processing"];
    return;
  }
  self.currentFunId = funId;
  SKProduct *product = [[StoreManager sharedInstance] productMatchingIdentifier: productId];
  if (product == nil) {
    NSLog(@"beginBy with empty product: %@", productId);
    self.currentFunId = nil;
    [self nativeCb:funId hasErr:YES dataStr:@"beginBy with empty product"];
    return;
  }
  if (orderId == nil || [orderId isEqualToString:@""]) {
    NSLog(@"beginBy with empty orderId: %@", orderId);
    self.currentFunId = nil;
    [self nativeCb:funId hasErr:YES dataStr:@"beginBy with empty orderId"];
    return;
  }
  [[StoreObserver sharedInstance] buy:product orderId: orderId];
}

#pragma mark - Finish Transaction
- (void)finishTransaction:(NSString *)funId transactionId: (NSString *) transactionId {
  [[StoreObserver sharedInstance] finishTransaction: transactionId];
  [self nativeCb:funId hasErr:NO dataStr:@""];
}

/// Creates and displays an alert.
-(void)alertWithTitle:(NSString *)title message:(NSString *)message {
  UIAlertController *alertController = [utility alertWithTitle:title message:message];
  [self.navigationController presentViewController:alertController animated:YES completion:nil];
}

#pragma mark - Handle PCSProductRequest Notification

/// Updates the UI according to the product request notification result.
-(void)handleProductRequestNotification:(NSNotification *)notification {
  StoreManager *productRequestNotification = (StoreManager*)notification.object;
  PCSProductRequestStatus status = (PCSProductRequestStatus)productRequestNotification.status;
  NSLog(@"handleProductRequestNotification status: %ld", (long)status);
}

#pragma mark - Handle PCSPurchase Notification
/// Updates the UI according to the purchase request notification result.
-(void)handlePurchaseNotification:(NSNotification *)notification {
  NSDictionary* dic = notification.userInfo;
  NSNumber *errcode = dic[@"errcode"];
  NSLog(@"handlePurchaseNotification status: %@", errcode);
  // check if errcode is zero or not
  self.currentFunId = nil;
  if (errcode != nil && [errcode intValue] != 0) {
    [self nativeCb:self.currentFunId hasErr:YES dataStr: [NSString stringWithFormat:@"%@", dic[@"errmsg"]]];
  } else {
    NSString *tid = dic[@"dataid"];
    NSMutableArray *transactions = [[NSMutableArray alloc] init];
    [transactions addObject:tid];
    NSError *error;
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:transactions options:NSJSONWritingPrettyPrinted error:&error];
    NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
    [self nativeCb:self.currentFunId hasErr:NO dataStr: jsonString];
  }
}

#pragma mark - Handle Restored Transactions

/// Handles succesful restored transactions. Switches to the Purchases view.
-(void)handleRestoredSucceededTransaction {
  utility.restoreWasCalled = YES;
  
  // Refresh the Purchases view with the restored purchases.
  //    [self switchToViewController:ParentViewControllerSegmentPurchases];
  //    [self.purchases reloadWithData:self.utility.dataSourceForPurchasesUI];
  //    self.segmentedControl.selectedSegmentIndex = ParentViewControllerSegmentPurchases;
}

@end