added rooms operations

joining, creating new if full

backend/routes/room.js

@@ -4,22 +4,44 @@ var router = express.Router();
 var RoomModel = require('../schemas/room');
 
 //creating new room in db
-router.post('/add', function (req, res) {
-
-    //setting values from request to object
-    let newRoom = new RoomModel({
-        id: req.body.id,
-        createDate: req.body.createDate,
-        started: req.body.started,
-        players: req.body.players,
-        positions: req.body.positions
+router.post('/add', async function (req, res) {
+    RoomModel.findOne( { full: false, started: false }, function (err, results) {
+        if (err) { 
+            console.log(err);
+        }
+        if (!results) {
+            let newRoom = new RoomModel({
+                createDate: new Date,
+                full: false,
+                started: false,
+                players: [req.body.name],
+            });
+            newRoom.save()
+                .then(() => res.status(200).json('Added new room'))
+                .catch(err => res.status(400).json('Error: ' + err));
+        }else {
+            
+            let players = results.players;
+            players.push(req.body.name);
+            let updateObj = {
+                players: players,
+            }
+            players.length === 4 ? updateObj.full = true : updateObj.full = false;
+            RoomModel.findOneAndUpdate(
+                { _id: results._id }, 
+                updateObj,
+                function (err, docs) { 
+                    if (err){ 
+                        console.log(err) 
+                    } 
+                    else{ 
+                        console.log("Updated Docs : ", docs); 
+                    } 
+                }
+            );
+            
+        }
     });
-
-    //saving room in db
-    newRoom.save()
-    .then(() => res.status(200).json('Added new room'))
-    .catch(err => res.status(400).json('Error: ' + err));
-
 });
 
 //deleting room after game ends