Added Crud Rest API for guest players, unknown players in saved games are automatically added as guests. Games are now as such saved correctly. More decoupling from models. Updated express for better error handling.

src/routers/mainRouter.ts

@@ -2,19 +2,18 @@ import express from "express";
 import {requireAuthenticated} from "../passport-config";
 import routers from "./routers";
 import {IDbUser} from "../models/dbUser";
+import {ModelParameterError} from "../models/utils";
 
 const router = express.Router();
 
 router.use("/account", routers.signup);
 router.use("/api", routers.api);
-
 router.get("/game", requireAuthenticated, (req, res) => {
     res.render("gameIndex.ejs", {
         username: (req.user as IDbUser).username,
         rootUrl: req.app.locals.rootUrl
     });
 });
-
 router.get("/**", requireAuthenticated, (req, res) => {
     res.render("frontendIndex.ejs", {
         username: (req.user as IDbUser).username,
@@ -22,4 +21,16 @@ router.get("/**", requireAuthenticated, (req, res) => {
     });
 });
 
+const genericErrorHandler: express.ErrorRequestHandler =
+    (err, req, res, next) => {
+        if (err instanceof ModelParameterError) {
+            res.status(500).send({message: "An internal error occurred in the database."});
+        }
+        else {
+            res.status(500).send({message: "An unknown error occurred."});
+        }
+    };
+
+router.use(genericErrorHandler);
+
 export default router;