add the search function to website

pages/_app.tsx

@@ -4,13 +4,16 @@ import { SpeedInsights } from "@vercel/speed-insights/next";
 import "katex/dist/katex.min.css";
 import { ThemeProvider } from "next-themes";
 import type { AppProps } from "next/app";
-
+import { QueryClient, QueryClientProvider } from "react-query";
+const queryClient = new QueryClient();
 export default function App({ Component, pageProps }: AppProps) {
   return (
-    <ThemeProvider attribute="class" enableColorScheme enableSystem={false}>
-      <Analytics />
-      <SpeedInsights />
-      <Component {...pageProps} />
-    </ThemeProvider>
+    <QueryClientProvider client={queryClient}>
+      <ThemeProvider attribute="class" enableColorScheme enableSystem={false}>
+        <Analytics />
+        <SpeedInsights />
+        <Component {...pageProps} />
+      </ThemeProvider>
+    </QueryClientProvider>
   );
 }

pages/api/search/[keyword].ts

@@ -0,0 +1,20 @@
+import { SearchIndex } from "@/lib/search";
+import { isEmptyString } from "@/lib/utils";
+import { TSearchResultItem } from "@/types/search-result";
+import type { NextApiRequest, NextApiResponse } from "next";
+
+type ResponseData = TSearchResultItem[];
+
+export default function handler(req: NextApiRequest, res: NextApiResponse<ResponseData>) {
+  const searchText = req.query.keyword as string;
+  if (isEmptyString(searchText)) {
+    res.status(200).json([]);
+    return;
+  }
+  const result: TSearchResultItem[] = SearchIndex.search(searchText).map((item) => ({
+    id: item.id,
+    title: item.title,
+    tags: item.tags,
+  }));
+  res.status(200).json(result);
+}

pages/search.tsx

@@ -0,0 +1,102 @@
+import { ContentContainer, Page } from "@/components/layouts/layouts";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Toaster } from "@/components/ui/toaster";
+import { useToast } from "@/components/ui/use-toast";
+import { Footer } from "@/components/utils/Footer";
+import { NavBar } from "@/components/utils/NavBar";
+import { SEO } from "@/components/utils/SEO";
+import { Config } from "@/data/config";
+import { fontFangZhengXiaoBiaoSongCN, fontSourceSerifScreenCN } from "@/styles/font";
+import { TSearchResultItem } from "@/types/search-result";
+import axios from "axios";
+import { nanoid } from "nanoid";
+import Link from "next/link";
+import { ChangeEvent, KeyboardEvent, useState } from "react";
+import { useQuery } from "react-query";
+
+export default function SearchPage() {
+  const [searchText, setSearchText] = useState<string>("");
+  const [searchResult, setSearchResult] = useState<TSearchResultItem[]>([]);
+  const { toast } = useToast();
+
+  const fetchAPI = async (param: string) => {
+    const response = (await axios.get<TSearchResultItem[]>(`/api/search/${param}`)).data;
+    return response;
+  };
+
+  const querySearch = useQuery("searchData", () => fetchAPI(searchText), {
+    enabled: false,
+    onSuccess: (data) => {
+      setSearchResult(data);
+      if (data.length === 0) {
+        toast({ title: "Empty Result", description: "Change the keyword please." });
+      }
+    },
+    onError: () => {
+      toast({ title: "Network Error", description: "Please try it later." });
+    },
+  });
+
+  const handleInputSearchText = (event: ChangeEvent<HTMLInputElement>) => {
+    setSearchText(event.target.value);
+  };
+
+  const handleEnterKeySearch = (event: KeyboardEvent<HTMLInputElement>) => {
+    (event.key === "Go" || event.key === "Enter") && handleMakeSearch();
+  };
+
+  const handleMakeSearch = () => {
+    querySearch.refetch();
+  };
+
+  return (
+    <Page>
+      <SEO title={`${Config.SiteTitle} - Search`} description={"Search the posts on your demand."} />
+      <NavBar />
+      <Toaster />
+      <ContentContainer>
+        <h2 className={`my-5 flex justify-center text-2xl font-bold ${fontFangZhengXiaoBiaoSongCN.className}`}>
+          {"SEARCH POSTS"}
+        </h2>
+        <div className="flex my-10 h-1/2">
+          <Input
+            className="my-auto py-0"
+            placeholder="Input the keyword"
+            value={searchText}
+            onKeyDown={handleEnterKeySearch}
+            onChange={handleInputSearchText}
+          />
+          <Button className="mx-3 my-auto" disabled={querySearch.isLoading} onClick={handleMakeSearch}>
+            {querySearch.isLoading ? "Loading" : "Search"}
+          </Button>
+        </div>
+        <div className="flex flex-col justify-center">
+          <div className={`min-h-full flex flex-col ${fontSourceSerifScreenCN.className}`}>
+            {querySearch.isSuccess &&
+              searchResult.map((item, index) => (
+                <Link
+                  className={`py-2 px-5 border-t ${
+                    index === searchResult.length - 1 && "border-b"
+                  } hover:bg-gray-50 dark:hover:bg-gray-900 flex flex-col`}
+                  key={nanoid()}
+                  href={`/blog/${item.id}`}
+                  target="_blank"
+                >
+                  <div className="my-1 capitalize">{item.title}</div>
+                  <div className="flex space-x-2 flex-wrap">
+                    {item.tags?.map((tagitem) => (
+                      <div className="text-sm text-gray-500 dark:text-gray-400" key={nanoid()}>
+                        {tagitem}
+                      </div>
+                    ))}
+                  </div>
+                </Link>
+              ))}
+          </div>
+        </div>
+      </ContentContainer>
+      <Footer />
+    </Page>
+  );
+}