fix(comment): fix comments

Author: hewenguang

src/pay/weixin.service.ts

@@ -144,64 +144,43 @@ export class WeixinService {
   }
 
   callback(body: WeixinCallbackBody) {
-    throw new Error(JSON.stringify(body));
-    try {
-      // Decrypt the callback data
-      // Note: wechatpay-node-v3 library handles signature verification internally
-      const data = this.pay.decipher_gcm(
-        body.resource.ciphertext,
-        body.resource.associated_data,
-        body.resource.nonce,
-      );
-
-      console.log(body, data);
-
-      const { out_trade_no, transaction_id, trade_state, amount } = data as {
-        out_trade_no: string;
-        transaction_id: string;
-        trade_state: string;
-        amount: { total: number };
-      };
+    const data = this.pay.decipher_gcm(
+      body.resource.ciphertext,
+      body.resource.associated_data,
+      body.resource.nonce,
+    );
 
-      // Process business logic asynchronously to avoid timeout
-      // According to WeChat Pay docs, we should respond immediately and process business logic asynchronously
-      setImmediate(() => {
-        void (async () => {
-          try {
-            const order = await this.ordersService.findByOrderNo(out_trade_no);
+    const { out_trade_no, transaction_id, trade_state, amount } = data as {
+      out_trade_no: string;
+      transaction_id: string;
+      trade_state: string;
+      amount: { total: number };
+    };
 
-            if (amount.total !== order.amount) {
-              console.error(
-                `[WeChat Pay Callback] Order amount mismatch: ${out_trade_no}`,
-              );
-              return;
-            }
+    setImmediate(() => {
+      void (async () => {
+        try {
+          const order = await this.ordersService.findByOrderNo(out_trade_no);
 
-            if (trade_state === 'SUCCESS') {
-              await this.ordersService.markAsPaid(out_trade_no, transaction_id);
-            } else if (trade_state === 'CLOSED') {
-              await this.ordersService.close(out_trade_no);
-            }
-          } catch (error) {
+          if (amount.total !== order.amount) {
             console.error(
-              `[WeChat Pay Callback] Error processing callback: ${error}`,
+              `[WeChat Pay Callback] Order amount mismatch: ${out_trade_no}`,
             );
+            return;
           }
-        })();
-      });
-
-      // According to WeChat Pay V3 API docs:
-      // For successful verification, return HTTP 200 or 204 with no response body
-      return;
-    } catch (error) {
-      console.log(body, error);
 
-      throw new AppException(
-        error.message,
-        'SIGNATURE_VERIFICATION_FAILED',
-        HttpStatus.BAD_REQUEST,
-      );
-    }
+          if (trade_state === 'SUCCESS') {
+            await this.ordersService.markAsPaid(out_trade_no, transaction_id);
+          } else if (trade_state === 'CLOSED') {
+            await this.ordersService.close(out_trade_no);
+          }
+        } catch (error) {
+          console.error(
+            `[WeChat Pay Callback] Error processing callback: ${error}`,
+          );
+        }
+      })();
+    });
   }
 
   async query(userId: string, orderId: string) {