feat: 迁移plant

app/plant/api/internal/logic/callback/wechatPayCallbackLogic.go

@@ -5,6 +5,9 @@ package callback
 
 import (
 	"context"
+	"encoding/json"
+	"io"
+	"net/http"
 
 	"github.com/zeromicro/go-zero/core/logx"
 	"sundynix-micro-go/app/plant/api/internal/svc"
@@ -25,8 +28,52 @@ func NewWechatPayCallbackLogic(ctx context.Context, svcCtx *svc.ServiceContext)
 	}
 }
 
-func (l *WechatPayCallbackLogic) WechatPayCallback() error {
-	// todo: add your logic here and delete this line
+// wechatNotify 微信支付回调通知结构
+type wechatNotify struct {
+	Id           string `json:"id"`
+	EventType    string `json:"event_type"`
+	Summary      string `json:"summary"`
+	ResourceType string `json:"resource_type"`
+	Resource     struct {
+		Algorithm      string `json:"algorithm"`
+		Ciphertext     string `json:"ciphertext"`
+		AssociatedData string `json:"associated_data"`
+		Nonce          string `json:"nonce"`
+	} `json:"resource"`
+}
+
+// WechatPayCallback 微信支付回调处理
+// TODO: 接入 wechatpay-go SDK 完成验签 + 解密 + 订单状态更新
+//
+// 完整接入步骤：
+//  1. go get github.com/wechatpay-apiv3/wechatpay-go
+//  2. 在 config 中添加 WechatPay{ MchId, MchAPIv3Key, PrivateKeyPath, PublicKeyId, PublicKeyPath }
+//  3. 使用 notify.NewRSANotifyHandler 验签解密
+//  4. 解析 payments.Transaction 后根据 TradeState == "SUCCESS" 更新 sundynix_exchange_order 状态
+func (l *WechatPayCallbackLogic) WechatPayCallback(r *http.Request) error {
+	// 1. 读取请求体
+	body, err := io.ReadAll(r.Body)
+	if err != nil {
+		l.Logger.Errorf("[微信支付回调] 读取请求体失败: %v", err)
+		return err
+	}
+	defer r.Body.Close()
+
+	// 2. 解析通知基本结构（不验签，记录日志）
+	var notify wechatNotify
+	if err = json.Unmarshal(body, &notify); err != nil {
+		l.Logger.Errorf("[微信支付回调] 解析通知失败: %v, body: %s", err, string(body))
+		return err
+	}
+
+	l.Logger.Infof("[微信支付回调] 收到通知 id=%s, event=%s, summary=%s",
+		notify.Id, notify.EventType, notify.Summary)
+
+	// TODO: 完成验签 + 解密 + 业务处理
+	// if notify.EventType == "TRANSACTION.SUCCESS" {
+	//   transaction := decrypt(notify.Resource, mchAPIv3Key)
+	//   updateOrderStatus(transaction.OutTradeNo, "SUCCESS")
+	// }
 
 	return nil
 }