Initial commit: Supermarket scraper MVP

2025-12-28 23:29:30 +05:00
commit 19c0426cdc
30 changed files with 4839 additions and 0 deletions
--- a/src/services/parser/ProductParser.ts
+++ b/src/services/parser/ProductParser.ts
@@ -0,0 +1,84 @@
+import { ProductItem } from '../../scrapers/api/magnit/types.js';
+import { CreateProductData } from '../product/ProductService.js';
+
+export class ProductParser {
+  /**
+   * Конвертация цены из копеек в рубли
+   */
+  private static priceFromKopecks(kopecks: number): number {
+    return kopecks / 100;
+  }
+
+  /**
+   * Парсинг даты из строки
+   */
+  private static parseDate(dateString?: string): Date | undefined {
+    if (!dateString) return undefined;
+    try {
+      return new Date(dateString);
+    } catch {
+      return undefined;
+    }
+  }
+
+  /**
+   * Преобразование массива бейджей в JSON строку
+   */
+  private static badgesToJson(badges: Array<{ text: string; backgroundColor: string }>): string | undefined {
+    if (!badges || badges.length === 0) return undefined;
+    return JSON.stringify(badges);
+  }
+
+  /**
+   * Преобразование ProductItem из API в CreateProductData для БД
+   */
+  static parseProductItem(
+    item: ProductItem,
+    storeId: number,
+    categoryId?: number
+  ): CreateProductData {
+    return {
+      externalId: item.productId,
+      storeId,
+      categoryId,
+      name: item.name,
+      description: item.description,
+      url: item.url,
+      imageUrl: item.gallery && item.gallery.length > 0 ? item.gallery[0].url : undefined,
+      currentPrice: this.priceFromKopecks(item.price),
+      unit: item.unit,
+      weight: item.weight,
+      brand: item.brand,
+      oldPrice: item.promotion?.oldPrice
+        ? this.priceFromKopecks(item.promotion.oldPrice)
+        : undefined,
+      discountPercent: item.promotion?.discountPercent
+        ? item.promotion.discountPercent
+        : undefined,
+      promotionEndDate: this.parseDate(item.promotion?.endDate),
+      rating: item.ratings?.rating,
+      scoresCount: item.ratings?.scoresCount,
+      commentsCount: item.ratings?.commentsCount,
+      quantity: item.quantity,
+      badges: this.badgesToJson(item.badges),
+    };
+  }
+
+  /**
+   * Парсинг массива товаров
+   */
+  static parseProductItems(
+    items: ProductItem[],
+    storeId: number,
+    categoryMap: Map<number, number> // Map<externalCategoryId, categoryId>
+  ): CreateProductData[] {
+    return items.map(item => {
+      const categoryId = item.category?.id
+        ? categoryMap.get(item.category.id)
+        : undefined;
+
+      return this.parseProductItem(item, storeId, categoryId);
+    });
+  }
+}
+