53 lines
2.0 KiB
TypeScript
53 lines
2.0 KiB
TypeScript
import { Controller, Headers, Inject, Post, Req, Res } from '@nestjs/common';
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import type { Request, Response } from 'express';
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import { TradeService } from '../modules/trade/trade.service';
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import { WECHAT_PROVIDER } from '../integrations/integrations.constants';
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import type { IWechatProvider } from '../integrations/wechat/wechat.interface';
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import { AlertService } from '../common/alert/alert.service';
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type RawBodyRequest = Request & { body: Buffer };
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@Controller('callbacks/wechat')
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export class WechatRefundCallbackController {
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constructor(
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private readonly tradeService: TradeService,
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@Inject(WECHAT_PROVIDER) private readonly wechat: IWechatProvider,
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private readonly alert: AlertService,
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) {}
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@Post('refund')
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async refundNotify(
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@Req() req: RawBodyRequest,
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@Headers() headers: Record<string, string | string[] | undefined>,
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@Res() res: Response,
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) {
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let outRefundNo: string | undefined;
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try {
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const rawBody =
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(req as Request & { rawBody?: Buffer }).rawBody?.toString('utf8') ??
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(typeof req.body === 'string' ? req.body : JSON.stringify(req.body ?? {}));
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const notify = await this.wechat.parseRefundNotification(headers, rawBody);
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outRefundNo = notify.outRefundNo;
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await this.tradeService.handleRefundSuccess({
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outRefundNo: notify.outRefundNo,
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refundId: notify.refundId,
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amountFen: notify.amountFen,
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remark: '微信退款回调确认',
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actorType: 'WECHAT_REFUND',
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});
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return res.status(200).json({ code: 'SUCCESS', message: '成功' });
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} catch (err) {
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const message = err instanceof Error ? err.message : '处理失败';
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this.alert.notify({
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level: 'P0',
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category: 'pay',
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title: '退款回调处理失败',
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detail: `${outRefundNo ? `退款单 ${outRefundNo}\n` : ''}${message}`,
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dedupeKey: `refund_callback_fail|${outRefundNo ?? message.slice(0, 40)}`,
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dedupeTtlSec: 120,
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});
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return res.status(500).json({ code: 'FAIL', message });
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}
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}
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}
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