//
//  PayVM.h
//  支付相关 VM：封装 Apple IAP 验签请求
//

#import <Foundation/Foundation.h>

@class KBPayProductModel;

NS_ASSUME_NONNULL_BEGIN

/// 统一的支付回调：sta 为状态码（0 成功，非 0 失败），msg 为后端返回的消息
typedef void(^KBPayCompletion)(NSInteger sta, NSString * _Nullable msg);

/// In-App 商品列表回调（返回 data 数组）
typedef void(^KBPayProductsCompletion)(NSInteger sta,
                                       NSString * _Nullable msg,
                                       NSArray<KBPayProductModel *> * _Nullable products);

@interface PayVM : NSObject

/// Apple 内购验签
/// params 形如：@{ @"payment": @{ @"receipt": receipt, @"type": @(type) } }
/// needShow：是否显示加载 HUD
- (void)applePayReqWithParams:(NSDictionary *)params
                     needShow:(BOOL)needShow
                   completion:(KBPayCompletion)completion;

/// 查询 type=in-app-purchase 的商品列表
- (void)fetchInAppProductsNeedShow:(BOOL)needShow
                        completion:(KBPayProductsCompletion)completion;

@end

NS_ASSUME_NONNULL_END