feat: 开发采集、采集箱和商品编辑功能

extension-v2/src/collector/jsonld.ts

@@ -0,0 +1,107 @@
+/**
+ * JSON-LD 提取器（schema.org/Product）
+ *
+ * Ozon 是 SSR 站点，商品页 HTML 里带 application/ld+json，
+ * 是 DOM 之外最稳定的结构化来源（比哈希类名稳定一个数量级）。
+ *
+ * 参考实现（毛子ERP）也解析 application/ld+json 取 description / offers.url。
+ */
+
+export interface JsonLdProduct {
+  title?: string;
+  description?: string;
+  brand?: string;
+  sku?: string;
+  price?: string;
+  currency?: string;
+  images: string[];
+  rating?: string;
+  reviewCount?: string;
+}
+
+function asString(v: unknown): string | undefined {
+  if (typeof v === 'string') return v;
+  if (typeof v === 'number') return String(v);
+  return undefined;
+}
+
+function findProduct(node: unknown): any | null {
+  if (Array.isArray(node)) {
+    for (const item of node) {
+      const r = findProduct(item);
+      if (r) return r;
+    }
+    return null;
+  }
+  if (!node || typeof node !== 'object') return null;
+
+  const obj = node as Record<string, unknown>;
+  const type = obj['@type'];
+  const types = Array.isArray(type) ? type : [type];
+  if (types.some((t) => t === 'Product')) return obj;
+
+  // @graph 包裹
+  if (Array.isArray(obj['@graph'])) {
+    for (const g of obj['@graph']) {
+      const r = findProduct(g);
+      if (r) return r;
+    }
+  }
+  return null;
+}
+
+function collectImages(node: unknown, out: string[]): void {
+  if (!node) return;
+  if (typeof node === 'string') {
+    if (/^(https?:)?\/\/.+/i.test(node) && !out.includes(node)) out.push(node);
+    return;
+  }
+  if (Array.isArray(node)) {
+    node.forEach((n) => collectImages(n, out));
+    return;
+  }
+  if (typeof node === 'object') {
+    for (const v of Object.values(node as Record<string, unknown>)) {
+      collectImages(v, out);
+    }
+  }
+}
+
+export function extractJsonLd(): JsonLdProduct | null {
+  try {
+    const scripts = document.querySelectorAll('script[type="application/ld+json"]');
+    for (const script of Array.from(scripts)) {
+      const text = script.textContent?.trim();
+      if (!text) continue;
+      let data: unknown;
+      try {
+        data = JSON.parse(text);
+      } catch {
+        continue;
+      }
+      const product = findProduct(data);
+      if (!product) continue;
+
+      const offers = Array.isArray(product.offers) ? product.offers[0] : product.offers;
+      const brandName = product.brand?.name ?? (typeof product.brand === 'string' ? product.brand : undefined);
+
+      const images: string[] = [];
+      if (product.image) collectImages(product.image, images);
+
+      return {
+        title: asString(product.name),
+        description: asString(product.description),
+        brand: asString(brandName),
+        sku: asString(product.sku),
+        price: asString(offers?.price),
+        currency: asString(offers?.priceCurrency),
+        images,
+        rating: asString(product.aggregateRating?.ratingValue),
+        reviewCount: asString(product.aggregateRating?.reviewCount),
+      };
+    }
+  } catch (err) {
+    console.warn('[JSON-LD] 提取失败:', err);
+  }
+  return null;
+}