app default endpoints

src/app.js

@@ -1,5 +1,7 @@
 const express = require('express');
 const app = express();
+const fs = require('fs');
+const path = require('path');
 
 const cons = {
     ok: '\x1b[32m✔\x1b[0m %s',
@@ -10,8 +12,17 @@ const cons = {
 module.exports = (config) => {
     const fw = require('./file_walker')(config);
 
+    app.set('view engine', config['view_engine']);
+    app.set('views', path.join(__dirname, '..'));
+
     const articles = [];
 
+    const log = (status, msg) => {
+        if (config['test'])
+            return;
+        console.log(status, msg);
+    };
+
     const reload = (callback) => {
         fw.fetchArticles((err, list) => {
             if (err) {
@@ -20,22 +31,55 @@ module.exports = (config) => {
             }
             articles.splice(0, articles.length, ...list);
             if (articles.length > 0)
-                console.log(cons.ok, `loaded ${articles.length} article${articles.length > 1 ? 's' : ''}`);
+                log(cons.ok, `loaded ${articles.length} article${articles.length > 1 ? 's' : ''}`);
             else
-                console.log(cons.warn, `no articles loaded, check your configuration`);
+                log(cons.warn, `no articles loaded, check your configuration`);
             callback(true);
         });
     };
 
+    const render = (res, path, data, code = 200) => {
+        res.render(path, data, (err, html) => {
+            if (err) {
+                res.sendStatus(500);
+                log(cons.error, `failed to render ${path} : ${err}`);
+            } else
+                res.status(code).send(html);
+        });
+    };
+
+    const showError = (path, code, res) => {
+        const errorPath = `${config['data_dir']}/${config['home']['error']}`;
+        if (fs.existsSync(errorPath))
+            render(res, errorPath, {error: code, path: path}, code);
+        else
+            res.sendStatus(code);
+    };
+
     app.get('/', (req, res) => {
-        res.status(200).send('Hello World!');
+        const homePath = `${config['data_dir']}/${config['home']['index']}`;
+        if (fs.existsSync(homePath))
+            render(res, homePath, {articles: articles});
+        else {
+            showError(req.path, 404, res);
+        }
+    });
+
+    app.get('*', express.static(config['data_dir']));
+
+    app.get('*', (req, res) => {
+        showError(req.path, 404, res);
+    });
+
+    app.all('*', (req, res) => {
+        res.status(400).send('bad request');
     });
 
     app.start = () => {
         reload((res) => {
             if (res)
                 app.listen(config['node_port'], () => {
-                    console.log(cons.ok, `gitblog.md server listening on port ${config['node_port']}`);
+                    log(cons.ok, `gitblog.md server listening on port ${config['node_port']}`);
                 });
         });
     };