Check if Cards still exist for a room. Return -1 as new card if no new card exist

events.js

@@ -148,6 +148,40 @@ function createRouter(db) {
         );
     };
 
+    const cardsExist = function cardExist(req, res, next) {
+        const spielname = req.body.spielname;
+        if (spielname.match(/^[0-9a-z]+$/) != null) {
+            const sql = 'SELECT Card.CardID, Solution, Tabu1, Tabu2, Tabu3, Tabu4, Tabu5 \n' +
+                'FROM Card \n' +
+                'WHERE Card.CardID NOT IN \n' +
+                '(\n' +
+                ' SELECT S2C.CardID\n' +
+                ' FROM S2C\n' +
+                ' WHERE S2C.CardID IS NOT NULL AND S2C.SessionID = (SELECT SessionID FROM Session WHERE SessionName = \"'+spielname+'\")\n' +
+                ');';
+            console.log('getS2C1: ', sql);
+            db.query(
+                sql,
+                (error, results) => {
+                    if (error) {
+                        console.log(error);
+                        res.header('Access-Control-Allow-Origin', "*").status(500).json({status: 'false'});
+                    } else {
+                        if (results.length > 0) {
+                            next();
+                        } else {
+                            res.header('Access-Control-Allow-Origin', "*").status(502).json({
+                                status: 'false',
+                                reason: 'Alle Karten sind durchgespielt'
+                            });
+                        }
+                    }
+                });
+        } else {
+            res.header('Access-Control-Allow-Origin', "*").status(500).json({status: 'error'});
+        }
+    };
+
     const getS2C = async function getS2C(req, res) {
         const spielname = req.body.spielname;
         if (spielname.match(/^[0-9a-z]+$/) != null) {
@@ -195,7 +229,7 @@ function createRouter(db) {
                                 (error, results) => {
                                     if (error) {
                                         console.log(error);
-                                        res.header('Access-Control-Allow-Origin', "*").status(500).json({status: 'false'});
+                                        res.header('Access-Control-Allow-Origin', "*").status(502).json({status: 'false', reason: 'Alle Karten sind durchgespielt'});
                                     } else {
                                         const checkUpdate = results[0].affectedRows;
                                         console.log('CheckUpdate: ', results[0].affectedRows);
@@ -227,7 +261,11 @@ function createRouter(db) {
                                     }
                                 });
                         } else {
-                            res.header('Access-Control-Allow-Origin', "*").status(500).json({status: 'error alle Karten durch'});
+                            socket.emit('newCard', {
+                                'sessionName': spielname,
+                                'cardID': -1
+                            });
+                            res.header('Access-Control-Allow-Origin', "*").status(502).json({status: 'error alle Karten durch'});
                         }
                     }
                 });
@@ -678,7 +716,7 @@ function createRouter(db) {
     router.post('/getS2C', [getS2C]);
 
     //Start a new Round and lock the game positions
-    router.post('/newRound', [isSession, isActiveExplainer, newRound]);
+    router.post('/newRound', [cardsExist, isSession, isActiveExplainer, newRound]);
 
     //End a Round and unlock the game positions and invert RedTurn
     router.post('/endRound', [endRound]);