feat : add auto chat redirect

app/api/chat/route.ts

@@ -0,0 +1,45 @@
+import { NextResponse } from "next/server";
+
+type APISearchResponse = {
+  items?: {
+    id?: {
+      videoId?: string;
+    };
+  }[];
+};
+
+const channelId = "UCC80OcUEuutVW37MC190JJg";
+
+export async function GET() {
+  const apiKey = process.env.YOUTUBE_API_KEY;
+
+  if (!apiKey) {
+    return new NextResponse("YOUTUBE_API_KEY is not configured.", {
+      status: 500,
+    });
+  }
+
+  const response = await fetch(
+    `https://www.googleapis.com/youtube/v3/search?part=snippet&channelId=${channelId}&eventType=live&type=video&maxResults=1&key=${apiKey}`,
+    { cache: "no-store" },
+  );
+
+  if (!response.ok) {
+    return new NextResponse("Failed to search for live stream.", {
+      status: 502,
+    });
+  }
+
+  const data: APISearchResponse = await response.json();
+  const videoId = data.items?.[0]?.id?.videoId;
+
+  if (!videoId) {
+    return new NextResponse("No live stream found for this channel.", {
+      status: 404,
+    });
+  }
+
+  return NextResponse.redirect(
+    `https://www.youtube.com/live_chat?is_popout=${videoId}`,
+  );
+}