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keyBoard/Class/Pay/StoreKit2Manager/Protocols/StoreKitDelegate.swift

@@ -0,0 +1,48 @@
+//
+//  StoreKitDelegate.swift
+//  StoreKit2Manager
+//
+//  Created by xiaopin on 2025/12/6.
+//
+
+import Foundation
+import StoreKit
+
+/// StoreKit 代理协议
+/// 所有方法都在主线程调用
+public protocol StoreKitDelegate: AnyObject {
+    /// 状态更新回调
+    /// - Parameters:
+    ///   - manager: StoreKit2Manager 实例
+    ///   - state: 新的状态
+    func storeKit(_ manager: StoreKit2Manager, didUpdateState state: StoreKitState)
+    
+    /// 产品加载成功回调
+    /// - Parameters:
+    ///   - manager: StoreKit2Manager 实例
+    ///   - products: 加载的产品列表
+    func storeKit(_ manager: StoreKit2Manager, didLoadProducts products: [Product])
+    
+    /// 已购买交易订单更新回调
+    /// - Parameters:
+    ///   - manager: StoreKit2Manager 实例
+    ///   - efficient: 已购买的交易订单（有效的交易）
+    ///   - latests: 每个产品的最新交易记录
+    func storeKit(_ manager: StoreKit2Manager, didUpdatePurchasedTransactions efficient: [Transaction], latests: [Transaction])
+}
+
+// MARK: - 可选方法默认实现
+extension StoreKitDelegate {
+    public func storeKit(_ manager: StoreKit2Manager, didUpdateState state: StoreKitState) {
+        // 默认实现为空，子类可以选择性实现
+    }
+    
+    public func storeKit(_ manager: StoreKit2Manager, didLoadProducts products: [Product]) {
+        // 默认实现为空，子类可以选择性实现
+    }
+    
+    public func storeKit(_ manager: StoreKit2Manager, didUpdatePurchasedTransactions efficient: [Transaction], latests: [Transaction]) {
+        // 默认实现为空，子类可以选择性实现
+    }
+}
+