From d43fa3768c5e9eee06c0af3b093c84aa38aedbf8 Mon Sep 17 00:00:00 2001
From: MikunoNaka <bokuwakanojogahoshii@yahoo.com>
Date: Sat, 31 Jul 2021 20:06:30 +0530
Subject: Added basic rooms support

---
 src/components/MultiplayerGrid.js | 12 +++++++++++-
 src/server/index.js               | 39 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/src/components/MultiplayerGrid.js b/src/components/MultiplayerGrid.js
index 88a8259..3db9dc6 100644
--- a/src/components/MultiplayerGrid.js
+++ b/src/components/MultiplayerGrid.js
@@ -28,9 +28,19 @@ const MultiplayerGrid = (props) => {
   const [board, setBoard] = useState([2,2,2,2,2,2,2,2,2]);
   const turn = props.turn;
 
+  const isHost = props.isHost;
+  useEffect(() => {
+    if (isHost) {
+      socket.emit("host");
+      socket.on("set-host-id", (id) => alert(id));
+    } else {
+      socket.emit("join", prompt("Enter ID"));
+    }
+  }, [isHost]);
+
   const getBoard = (index) => {
     // if it's not your turn you can't play
-    if ((turn === 0) === props.isHost) return;
+    if ((turn === 0) === isHost) return;
 
     const newBoard = board.slice(0, index).concat(turn).concat(board.slice(index+1, 9));
     socket.emit("update-remote-data", {
diff --git a/src/server/index.js b/src/server/index.js
index 2799805..c770e15 100644
--- a/src/server/index.js
+++ b/src/server/index.js
@@ -37,6 +37,8 @@ const getScore = (winner, scoreX, scoreO, board) => ({
   scoreO: winner === 0 ? scoreO + 1 : scoreO
 })
 
+// old WORKING code
+/*
 io.on('connection', (socket) => {
   socket.on('update-remote-data', (data) => {
     if (data.board.includes(0) || data.board.includes(1)) {
@@ -57,6 +59,43 @@ io.on('connection', (socket) => {
     };
   });
 });
+*/
+
+const getID = () => Math.floor(1000 + Math.random() * 9000);
+
+io.on('connection', (socket) => {
+  socket.on('host', () => {
+    const id = (`${getID()}`);
+    socket.join(id);
+    io.to(id).emit('set-host-id', id)
+  });
+
+  socket.on('join', (id) => {
+    socket.join(id)
+    // TODO: send confirmation
+  });
+
+  socket.on('update-remote-data', (data) => {
+    const room = Array.from(socket.rooms)[1]
+
+    if (data.board.includes(0) || data.board.includes(1)) {
+      const rows = getRows(data.board);
+      const winner = (rows.some((i) => allEqual(i))
+        || getCols(rows).some((i) => allEqual(i))
+        || [getLeftDiagonal(data.board), getRightDiagonal(data.board)].some((i) => allEqual(i))
+      ) ? data.turn : 2;
+
+      const score = getScore(winner, data.scoreX, data.scoreO, data.board)
+      io.to(room).emit('update-client-data', {
+        board: data.board, 
+        turn: score.winner ? data.turn : (data.turn === 0 ? 1 : 0),
+        score: score
+      });
+      
+      score.winner && io.to(room).emit('update-winner', score)
+    };
+  });
+});
 
 // serve static front end
 app.use(express.static(path.join(__dirname, '../../build')));
-- 
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