第一次提交

src/bids/services/bid.service.ts

@@ -0,0 +1,68 @@
+import { Injectable } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { Repository, LessThan } from 'typeorm';
+import { BidItem } from '../entities/bid-item.entity';
+
+@Injectable()
+export class BidsService {
+  constructor(
+    @InjectRepository(BidItem)
+    private bidRepository: Repository<BidItem>,
+  ) {}
+
+  async findAll(query?: any) {
+    const { page = 1, limit = 10, source, keyword } = query || {};
+    const qb = this.bidRepository.createQueryBuilder('bid');
+
+    if (source) {
+      qb.andWhere('bid.source = :source', { source });
+    }
+
+    if (keyword) {
+      qb.andWhere('bid.title LIKE :keyword', { keyword: `%${keyword}%` });
+    }
+
+    qb.orderBy('bid.publishDate', 'DESC')
+      .skip((page - 1) * limit)
+      .take(limit);
+
+    const [items, total] = await qb.getManyAndCount();
+    return { items, total };
+  }
+
+  getHighPriority() {
+    return this.bidRepository.find({
+      where: { priority: LessThan(0) }, // This is just a placeholder logic, priority should be > 0
+      order: { priority: 'DESC', publishDate: 'DESC' },
+      take: 10,
+    });
+  }
+
+  // Update logic for priority
+  async getHighPriorityCorrected() {
+    return this.bidRepository.createQueryBuilder('bid')
+      .where('bid.priority > 0')
+      .orderBy('bid.priority', 'DESC')
+      .addOrderBy('bid.publishDate', 'DESC')
+      .limit(10)
+      .getMany();
+  }
+
+  async createOrUpdate(data: Partial<BidItem>) {
+    // Use URL or a hash of URL to check for duplicates
+    let item = await this.bidRepository.findOne({ where: { url: data.url } });
+    if (item) {
+      Object.assign(item, data);
+      return this.bidRepository.save(item);
+    }
+    return this.bidRepository.save(data);
+  }
+
+  async cleanOldData() {
+    const thirtyDaysAgo = new Date();
+    thirtyDaysAgo.setDate(thirtyDaysAgo.getDate() - 30);
+    return this.bidRepository.delete({
+      createdAt: LessThan(thirtyDaysAgo),
+    });
+  }
+}