socket.io works

app/[gameID]/page.tsx

@@ -0,0 +1,94 @@
+"use client";
+
+import { useEffect, useState } from "react";
+import { useParams } from 'next/navigation';
+import { socket } from "../../socket";
+
+//import Card from '@/components/Card';
+
+//import type { GameCard } from '@/types';
+
+export default function GamePage() {
+  const { gameID } = useParams();
+
+  const [cards, setCards] = useState();
+
+  useEffect(() => {
+    socket.emit('join', gameID);
+
+    socket.on('init', data => {
+      console.log('init', data);
+      setCards(data.id);
+    });
+
+    socket.on('card-flipped', (data) => {
+      console.log('>>>', data);
+      setCards(data.id);
+    });
+
+    return () => {
+      socket.off('init');
+      socket.off('card-flipped');
+    };
+  }, []);
+
+  return <h1>A Page! {cards}</h1>
+}
+
+/*
+export default function GamePage() {
+  const { gameID } = useParams();
+
+  const [cards, setCards] = useState<GameCard[]>([]);
+
+  useEffect(() => {
+    socket.emit('join', gameID);
+
+    socket.on('init', data => {
+      console.log('init', data);
+      setCards(data.cards);
+    });
+
+    socket.on('card-flipped', (data) => {
+      console.log('>>>', data);
+      setCards(data.cards);
+    });
+
+    return () => {
+      socket.off('init');
+      socket.off('card-flipped');
+    };
+  }, []);
+
+  const flipCard = (cardID: string) => {
+    socket.emit('flip-card', {
+      cardID,
+      gameID,
+    });
+  };
+
+  return cards.length ? (
+    <main className="min-h-screen flex flex-col items-center justify-center gap-4">
+      <h1 className="text-2xl font-bold">Game ID: {gameID}</h1>
+
+      <div className="grid grid-cols-3 gap-4">
+        <div className="col-start-2">
+          <Card id={cards[0].id} flipped={cards[0].flipped} onFlip={flipCard} />
+        </div>
+        <div className="col-start-1">
+          <Card id={cards[1].id} flipped={cards[1].flipped} onFlip={flipCard} />
+        </div>
+        <div>
+          <Card id={cards[2].id} flipped={cards[2].flipped} onFlip={flipCard} />
+        </div>
+        <div>
+          <Card id={cards[3].id} flipped={cards[3].flipped} onFlip={flipCard} />
+        </div>
+        <div className="col-start-2">
+          <Card id={cards[4].id} flipped={cards[4].flipped} onFlip={flipCard} />
+        </div>
+      </div>
+    </main>
+  ) : null;
+}
+*/

app/page.tsx

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+'use client';
+import { useRouter } from 'next/navigation';
+//import generateID from '@/tools/simpleID';
+
+export default function Home() {
+  const router = useRouter();
+
+  const handleCreateGame = () => {
+    const id = 'abc123'; //generateID();
+    router.push(`/${id}`);
+  };
+
+  return (
+    <main className="min-h-screen flex items-center justify-center">
+      <button
+        onClick={handleCreateGame}
+        className="bg-blue-600 text-white text-lg px-6 py-3 rounded-xl shadow hover:bg-blue-700 transition"
+      >
+        Create New Game
+      </button>
+    </main>
+  );
+}
+