fix: 用户手动输入query条件导致的搜索异常问题

src/pages/search.astro

@@ -10,15 +10,9 @@ const searchParams = Astro.url.searchParams;
 const t = searchParams.get("t") ?? "";
 const c = searchParams.get("c") ?? "";
 
-const [{data: categories}, {data: tags}, {data: posts}] = await Promise.all([
+const [{data: categories}, {data: tags}] = await Promise.all([
   http.get<ApiResponse<CategoriesStats[]>>("categories/stats"),
   http.get<ApiResponse<Tag[]>>("posts/tags"),
-  http.get<ApiResponse<Post[]>>("posts/search", {
-    searchParams: {
-      category_code: c ?? "",
-      tag_code: t ?? "",
-    }
-  }),
 ] as const)
 
 let f_count = 0
@@ -36,6 +30,14 @@ const findTag = tags.find(item => {
   return item.code === t
 })
 
+// 搜索条件必须匹配 不允许非法值
+const {data:posts} = await http.get<ApiResponse<Post[]>>("posts/search", {
+  searchParams: {
+    category_code: findCategory?.code ?? "",
+    tag_code: findTag?.code ?? "",
+  }
+})
+
 const count = posts.length
 
 const pageTitle =
@@ -49,24 +51,33 @@ const pageDescription =
     : `浏览${pageTitle}相关文章，共 ${count} 篇。`
 
 const buildSearchUrl = (type: 'category' | 'tag', code: string) => {
-  const params = {
-    t: t,
-    c: c,
+  const params = new URLSearchParams()
+
+  if (findTag?.code) {
+    params.set('t', findTag.code)
+  }
+
+  if (findCategory?.code) {
+    params.set('c', findCategory.code)
   }
 
   if (type === 'category') {
-    params.c = c === code ? "" : code
+    if (c === code) {
+      params.delete('c')
     } else {
-    params.t = t === code ? "" : code
+      params.set('c', code)
+    }
+  } else {
+    if (t === code) {
+      params.delete('t')
+    } else {
+      params.set('t', code)
+    }
   }
 
-  const searchParams = new URLSearchParams(
-    Object.entries(params).filter(([, value]) => value !== '')
-  );
+  const query = params.toString()
 
-  const query = searchParams.toString();
-
-  return query ? `/search?${query}` : '/search';
+  return query ? `/search?${query}` : '/search'
 }
 ---
 <Layout title={pageTitle} description={pageDescription}>