Update index.js web server class

index.js

@@ -1,24 +1,46 @@
+/* Import modules */
 require('dotenv').config();
 const express = require('express');
 const cors = require('cors');
 const app = express();
 
-// Basic Configuration
-const port = process.env.PORT || 3000;
+const ShortenAPI = require('./scripts/API').ShortenAPI;
 
-app.use(cors());
+class WebServer {
+    // Basic Configuration
+    static port = process.env.PORT || 3000;
+    
+    /*
+        Initiate the web server. 
 
-app.use('/public', express.static(`${process.cwd()}/public`));
+        @param {function} callback - The callback run before activating the server
+    */
 
-app.get('/', function(req, res) {
-  res.sendFile(process.cwd() + '/views/index.html');
-});
+        constructor(callback) {
+            app.use(cors({ optionsSuccessStatus: 200 })); // some legacy browsers choke on 204
+            // app.use(cors());
+            
+            this.#setDefaults();
+            (callback) ? this[`activity`] = callback() : null;
 
-// Your first API endpoint
-app.get('/api/hello', function(req, res) {
-  res.json({ greeting: 'hello API' });
-});
+            var listener = app.listen(WebServer.port, () => {
+                console.log(`Active on port ${listener.address().port}.`);
+            });
+    }
 
-app.listen(port, function() {
-  console.log(`Listening on port ${port}`);
-});
+    /* Configure the default responses for the web server. */
+    #setDefaults() {
+        app.use(WebServer.paths['assets'], express.static(__dirname + WebServer.paths['assets']));
+
+        app.get("/", function (REQUEST, RESPONSE) {
+            RESPONSE.sendFile(__dirname + WebServer[`paths`][`default`]);
+        });
+    }
+    
+    static paths = {
+        "assets": "/public",
+        "default": '/views/index.html'
+    }
+}
+
+new WebServer(() => {return (new ShortenAPI(app))});