make a demo home page

app/page.tsx

@@ -1,65 +1,94 @@
-import Image from "next/image";
+"use client";
+
+import { useState } from "react";
+import ReactMarkdown from "react-markdown";
 
 export default function Home() {
+  const [url, setUrl] = useState("");
+  const [loading, setLoading] = useState(false);
+  const [markdown, setMarkdown] = useState("");
+  const [error, setError] = useState("");
+
+  const handleGenerate = async () => {
+    setLoading(true);
+    setError("");
+    setMarkdown("");
+
+    try {
+      const response = await fetch("/api/generate", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ url }),
+      });
+
+      const data = await response.json();
+
+      if (!response.ok) throw new Error(data.error || "Failed to generate");
+
+      setMarkdown(data.markdown);
+    } catch (err:  unknown) {
+      if (err instanceof Error) {
+    setError(err.message);
+  } else {
+    setError(String(err));
+  }
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const copyToClipboard = () => {
+    navigator.clipboard.writeText(markdown);
+    alert("Copied to clipboard!");
+  };
+
   return (
-    <div className="flex min-h-screen items-center justify-center bg-zinc-50 font-sans dark:bg-black">
-      <main className="flex min-h-screen w-full max-w-3xl flex-col items-center justify-between py-32 px-16 bg-white dark:bg-black sm:items-start">
-        <Image
-          className="dark:invert"
-          src="/next.svg"
-          alt="Next.js logo"
-          width={100}
-          height={20}
-          priority
-        />
-        <div className="flex flex-col items-center gap-6 text-center sm:items-start sm:text-left">
-          <h1 className="max-w-xs text-3xl font-semibold leading-10 tracking-tight text-black dark:text-zinc-50">
-            To get started, edit the page.tsx file.
-          </h1>
-          <p className="max-w-md text-lg leading-8 text-zinc-600 dark:text-zinc-400">
-            Looking for a starting point or more instructions? Head over to{" "}
-            <a
-              href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-              className="font-medium text-zinc-950 dark:text-zinc-50"
-            >
-              Templates
-            </a>{" "}
-            or the{" "}
-            <a
-              href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-              className="font-medium text-zinc-950 dark:text-zinc-50"
-            >
-              Learning
-            </a>{" "}
-            center.
-          </p>
+    <main className="min-h-screen bg-slate-950 text-slate-50 p-8">
+      <div className="max-w-4xl mx-auto space-y-8">
+        {/* Header */}
+        <div className="text-center space-y-2">
+          <h1 className="text-4xl font-bold tracking-tight text-blue-400">ReadmeGenAI</h1>
+          <p className="text-slate-400">Turn any GitHub URL into a professional README in seconds.</p>
         </div>
-        <div className="flex flex-col gap-4 text-base font-medium sm:flex-row">
-          <a
-            className="flex h-12 w-full items-center justify-center gap-2 rounded-full bg-foreground px-5 text-background transition-colors hover:bg-[#383838] dark:hover:bg-[#ccc] md:w-[158px]"
-            href="https://vercel.com/new?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            <Image
-              className="dark:invert"
-              src="/vercel.svg"
-              alt="Vercel logomark"
-              width={16}
-              height={16}
-            />
-            Deploy Now
-          </a>
-          <a
-            className="flex h-12 w-full items-center justify-center rounded-full border border-solid border-black/[.08] px-5 transition-colors hover:border-transparent hover:bg-black/[.04] dark:border-white/[.145] dark:hover:bg-[#1a1a1a] md:w-[158px]"
-            href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
+
+        {/* Input Section */}
+        <div className="flex gap-4">
+          <input
+            type="text"
+            placeholder="https://github.com/username/repo"
+            className="flex-1 bg-slate-900 border border-slate-800 rounded-lg px-4 py-2 focus:outline-none focus:ring-2 focus:ring-blue-500"
+            value={url}
+            onChange={(e) => setUrl(e.target.value)}
+          />
+          <button
+            onClick={handleGenerate}
+            disabled={loading || !url}
+            className="bg-blue-600 hover:bg-blue-500 disabled:opacity-50 px-6 py-2 rounded-lg font-medium transition-all"
           >
-            Documentation
-          </a>
+            {loading ? "Generating..." : "Generate"}
+          </button>
         </div>
-      </main>
-    </div>
+
+        {error && <div className="p-4 bg-red-900/20 border border-red-900 text-red-400 rounded-lg">{error}</div>}
+
+        {/* Output Section */}
+        {markdown && (
+          <div className="space-y-4 animate-in fade-in duration-700">
+            <div className="flex justify-between items-center">
+              <h2 className="text-xl font-semibold text-slate-300">Preview</h2>
+              <button 
+                onClick={copyToClipboard}
+                className="text-sm bg-slate-800 hover:bg-slate-700 px-3 py-1 rounded border border-slate-700"
+              >
+                Copy Markdown
+              </button>
+            </div>
+            <div className="prose prose-invert max-w-none bg-slate-900 p-6 rounded-xl border border-slate-800 shadow-xl">
+              <ReactMarkdown>{markdown}</ReactMarkdown>
+            </div>
+          </div>
+        )}
+      </div>
+    </main>
   );
-}
+}