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server/dukang-api/src/callbacks/wechat-refund.controller.ts

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+import { Controller, Headers, Post, Req, Res } from '@nestjs/common';
+import type { Request, Response } from 'express';
+import { PrismaService } from '../common/prisma/prisma.module';
+
+@Controller('callbacks/wechat')
+export class WechatRefundCallbackController {
+  constructor(private readonly prisma: PrismaService) {}
+
+  @Post('refund')
+  async refundNotify(
+    @Req() req: Request,
+    @Headers() _headers: Record<string, string | string[] | undefined>,
+    @Res() res: Response,
+  ) {
+    try {
+      const body = typeof req.body === 'object' ? req.body : {};
+      const outRefundNo = String((body as Record<string, unknown>).out_refund_no ?? '');
+      const refundId = String((body as Record<string, unknown>).refund_id ?? outRefundNo);
+
+      const existing = await this.prisma.logThirdParty.findFirst({
+        where: { provider: 'WECHAT_REFUND', externalNo: refundId, status: 'SUCCESS' },
+      });
+      if (existing) {
+        return res.status(200).json({ code: 'SUCCESS', message: '成功' });
+      }
+
+      await this.prisma.logThirdParty.create({
+        data: {
+          provider: 'WECHAT_REFUND',
+          scene: 'ORDER_REFUND_CALLBACK',
+          refType: 'TICKET',
+          refId: BigInt(0),
+          externalNo: refundId,
+          status: 'SUCCESS',
+        },
+      });
+
+      return res.status(200).json({ code: 'SUCCESS', message: '成功' });
+    } catch (err) {
+      const message = err instanceof Error ? err.message : '处理失败';
+      return res.status(500).json({ code: 'FAIL', message });
+    }
+  }
+}