first commit

src/lib/fetchVideoDetail.ts

@@ -0,0 +1,51 @@
+import { getAvailableApiSites } from '@/lib/config';
+import { SearchResult } from '@/lib/types';
+
+import { getDetailFromApi, searchFromApi } from './downstream';
+
+interface FetchVideoDetailOptions {
+  source: string;
+  id: string;
+  fallbackTitle?: string;
+}
+
+/**
+ * 根据 source 与 id 获取视频详情。
+ * 1. 若传入 fallbackTitle，则先调用 /api/search 搜索精确匹配。
+ * 2. 若搜索未命中或未提供 fallbackTitle，则直接调用 /api/detail。
+ */
+export async function fetchVideoDetail({
+  source,
+  id,
+  fallbackTitle = '',
+}: FetchVideoDetailOptions): Promise<SearchResult> {
+  // 优先通过搜索接口查找精确匹配
+  const apiSites = await getAvailableApiSites();
+  const apiSite = apiSites.find((site) => site.key === source);
+  if (!apiSite) {
+    throw new Error('无效的API来源');
+  }
+  if (fallbackTitle) {
+    try {
+      const searchData = await searchFromApi(apiSite, fallbackTitle.trim());
+      const exactMatch = searchData.find(
+        (item: SearchResult) =>
+          item.source.toString() === source.toString() &&
+          item.id.toString() === id.toString()
+      );
+      if (exactMatch) {
+        return exactMatch;
+      }
+    } catch (error) {
+      // do nothing
+    }
+  }
+
+  // 调用 /api/detail 接口
+  const detail = await getDetailFromApi(apiSite, id);
+  if (!detail) {
+    throw new Error('获取视频详情失败');
+  }
+
+  return detail;
+}