feat: 开发采集、采集箱和商品编辑功能

extension-v2/src/collector/text.ts

@@ -0,0 +1,110 @@
+/**
+ * 文本提取 - 标题、价格、参数表、卖点、描述、品牌
+ * 从 extension-v1 移植（DOM 兜底路径）
+ */
+import type { SiteProfile, TextRule } from '../profiles/types';
+
+export interface TextMaterial {
+  kind: TextRule['kind'];
+  content: string;
+  pairs?: Array<{ key: string; value: string }>; // table 模式的结构化结果
+}
+
+function clean(s: string): string {
+  return s.replace(/\s+/g, ' ').trim();
+}
+
+function extractOne(rule: TextRule): TextMaterial | null {
+  for (const sel of rule.selectors) {
+    let nodes: NodeListOf<Element>;
+    try {
+      nodes = document.querySelectorAll(sel);
+    } catch {
+      continue;
+    }
+    if (!nodes.length) continue;
+
+    // table 模式：参数表
+    if (rule.extract === 'table') {
+      const pairs: Array<{ key: string; value: string }> = [];
+      nodes.forEach((row) => {
+        const k = clean(row.querySelector(rule.tableKeySelector ?? '')?.textContent ?? '');
+        const v = clean(row.querySelector(rule.tableValueSelector ?? '')?.textContent ?? '');
+        if (k && v) pairs.push({ key: k.replace(/[:：]$/, ''), value: v });
+      });
+      if (pairs.length) {
+        return {
+          kind: rule.kind,
+          content: pairs.map((p) => `${p.key}: ${p.value}`).join('\n'),
+          pairs,
+        };
+      }
+      continue;
+    }
+
+    // join 模式：标题被拆成多个 span
+    if (rule.extract === 'join') {
+      let text = '';
+      nodes.forEach((n) => {
+        text += n.textContent ?? '';
+      });
+      text = clean(text);
+      if (text) return { kind: rule.kind, content: text };
+      continue;
+    }
+
+    // first 模式：只取第一个
+    const first = clean(nodes[0].textContent ?? '');
+    if (first) return { kind: rule.kind, content: first };
+  }
+  return null;
+}
+
+export function collectTexts(profile: SiteProfile): {
+  materials: TextMaterial[];
+  missingRequired: string[];
+} {
+  const materials: TextMaterial[] = [];
+  const missingRequired: string[] = [];
+
+  for (const rule of profile.textRules) {
+    const m = extractOne(rule);
+    if (m) materials.push(m);
+    else if (rule.required) missingRequired.push(rule.kind);
+  }
+
+  return { materials, missingRequired };
+}
+
+/** 合并去重：以 kind 为键，结构化来源优先，DOM 来源兜底。
+ *  参数表（params）特殊处理：两边的 pairs 做并集合并（按 key 去重），
+ *  因为「关于商品」只给前几项，完整「特征」在 DOM 里，需要合并才能拿全。
+ */
+export function mergeTexts(
+  primary: TextMaterial[],
+  fallback: TextMaterial[]
+): TextMaterial[] {
+  const map = new Map<string, TextMaterial>();
+  for (const m of [...primary, ...fallback]) {
+    if (m.kind === 'params') {
+      const existing = map.get('params');
+      if (!existing) {
+        map.set('params', { ...m, pairs: [...(m.pairs ?? [])] });
+      } else {
+        const merged = [...(existing.pairs ?? [])];
+        const seen = new Set(merged.map((p) => p.key));
+        for (const p of m.pairs ?? []) {
+          if (!seen.has(p.key)) {
+            merged.push(p);
+            seen.add(p.key);
+          }
+        }
+        existing.pairs = merged;
+        existing.content = merged.map((p) => `${p.key}: ${p.value}`).join('\n');
+      }
+      continue;
+    }
+    if (!map.has(m.kind)) map.set(m.kind, m);
+  }
+  return Array.from(map.values());
+}