add controller and routes definition for game management

add endpoint for creating a PublicState

app/controllers/PublicStateController.js

@@ -0,0 +1,50 @@
+const { v4: uuidv4 } = require('uuid');
+
+class PublicStateController {
+
+  constructor(database) {
+    this.database = database;
+  };
+
+  create(data, user, onSuccess, onError) {
+    console.log('PublicStateController.create');
+    let collection = this.database.collection('publicStates');
+    collection.findOne({name: data.name}, {}, (dbErr, dbRes) => {
+      if (dbErr === null) {
+        if (dbRes === null) {
+          let title = data.tile | data.name;
+          let pubState = {
+            id: uuidv4(),
+            name: data.name,
+            title: title,
+            createdBy: user.id,
+            ts: new Date().getTime(),
+            v: 1
+          };
+          collection.insertOne(pubState, (insertErr, insertRes) => {
+            if (insertErr === null) {
+              onSuccess(pubState);
+            } else {
+              onError({
+                error: 'database error: could not create public state',
+                message: insertErr.message
+              })
+            }
+          });
+        } else {
+          onError({
+            code: 'app error',
+            message: 'a public state with that name already exists'
+          });
+        }
+      } else {
+        onError({
+          code: 'database error',
+          message: dbErr.message
+        });
+      }
+    });
+  };
+};
+
+module.exports = PublicStateController;

app/routes/api.js

@@ -1,13 +1,38 @@
 const express = require('express');
 const router = express.Router();
-const UserController = require('../controllers/UserController');
 const Authenticator = require('../Authenticator');
+const UserController = require('../controllers/UserController');
+const PublicStateController = require('../controllers/PublicStateController');
 
 router.get('/', function (req, res, next) {
   let rnd = Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 5);
   res.send('respond with some api calls - ' + rnd);
 });
 
+router.post('/state', (req, res, next) => {
+  app = req.app;
+  db = app.locals.database;
+
+  let authenticator = new Authenticator(db);
+  let ctrl = new PublicStateController(db);
+
+  let scb = (data) => {
+    res.json(data);
+  };
+
+  let ecb = (error) => {
+    res.status(400).send(err);
+  };
+
+  authenticator.getAuthenticatedUser(req, (user) => {
+    if (user) {
+      ctrl.create(req.body, scb, ecb);
+    } else {
+      ecb({ code: 'auth error', message: 'user not logged in.' });
+    }
+  });
+});
+
 router.get('/user', function (req, res, next) {
   app = req.app;
   db = app.locals.database;
@@ -27,7 +52,7 @@ router.get('/user', function (req, res, next) {
     if (user) {
       ctrl.getUserData(user, scb, ecb);
     } else {
-      ecb({ code: 'app error', message: 'user not logged in.' });
+      ecb({ code: 'auth error', message: 'user not logged in.' });
     }
   });
 });