feat: 支持秒杀活动

packages/server/src/scheduler/scheduler.service.ts

@@ -1,12 +1,16 @@
 import { Injectable, Logger } from '@nestjs/common'
 import { Cron } from '@nestjs/schedule'
 import { SlotGeneratorService } from '../time-slot/slot-generator.service'
+import { FlashSaleService } from '../flash-sale/flash-sale.service'
 
 @Injectable()
 export class SchedulerService {
   private readonly logger = new Logger(SchedulerService.name)
 
-  constructor(private readonly slotGenerator: SlotGeneratorService) {}
+  constructor(
+    private readonly slotGenerator: SlotGeneratorService,
+    private readonly flashSaleService: FlashSaleService,
+  ) {}
 
   /** 02:00 daily — generate slots 14 days ahead from week templates */
   @Cron('0 2 * * *')
@@ -51,4 +55,17 @@ export class SchedulerService {
       this.logger.error('[handleCompleteBookings] Failed to complete bookings', err)
     }
   }
+
+  /** Every 5 min — expire unpaid flash sale reservations older than 15min */
+  @Cron('*/5 * * * *')
+  async handleExpireFlashSaleReservations(): Promise<void> {
+    try {
+      const count = await this.flashSaleService.expireUnpaidReservations(15)
+      if (count > 0) {
+        this.logger.log(`[handleExpireFlashSaleReservations] Expired ${count} unpaid reservations`)
+      }
+    } catch (err) {
+      this.logger.error('[handleExpireFlashSaleReservations] Failed', err)
+    }
+  }
 }