Popup Templates Support

.gitignore

@@ -125,3 +125,7 @@ static/locales/*
 
 # No docker-compose.yml files
 docker-compose.yml
+
+# Only keep example templates
+/templates/*
+!/templates/*.example.ejs

package.json

@@ -28,6 +28,7 @@
     "compression": "^1.7.4",
     "discord-oauth2": "^2.5.0",
     "discord.js": "^12.3.1",
+    "ejs": "^3.1.5",
     "eslint": "^7.9.0",
     "express": "^4.17.1",
     "express-mysql-session": "^2.1.4",

src/routes/api.js

@@ -25,6 +25,13 @@ router.post('/search', async (req, res) => {
     res.json({ data: data });
 });
 
+router.post('/get_template/:name', async (req, res) => {
+    const template = req.params.name;
+    const view = req.body.data;
+    const templateData = await utils.render(template, view);
+    res.send(templateData);
+});
+
 router.get('/get_settings', async (req, res) => {
     const data = getSettings();
     res.json({ data: data });

src/services/utils.js

@@ -1,5 +1,10 @@
 'use strict';
 
+const fs = require('fs');
+const path = require('path');
+const ejs = require('ejs');
+
+const TemplatesDir = path.resolve(__dirname, '../../templates');
 const config = require('../services/config.js');
 
 const generateString = () => {
@@ -46,9 +51,44 @@ const hasRole = (userRoles, requiredRoles) => {
 
 const zeroPad = (num, places) => String(num).padStart(places, '0');
 
+const fileExists = async (path) => {
+    return new Promise((resolve, reject) => {
+        try {
+            fs.exists(path, (exists) => {
+                resolve(exists);
+            });
+        } catch (e) {
+            return reject(e);
+        }
+    });
+};
+
+const render = async (name, data) => {
+    const filePath = path.resolve(TemplatesDir, name + '.ejs');
+    if (!await fileExists(filePath)) {
+        throw `Template ${filePath} does not exist!`;
+    }
+    return new Promise((resolve, reject) => {
+        try {
+            ejs.renderFile(filePath, data, (err, str) => {
+                if (err) {
+                    console.error('Template render error:', err);
+                    //return reject(err);
+                }
+                resolve(str);
+            });
+        } catch (e) {
+            console.error('Template error:', e);
+            return reject(e);
+        }
+    });
+};
+
 module.exports = {
     generateString,
     hasGuild,
     hasRole,
-    zeroPad
+    zeroPad,
+    fileExists,
+    render
 };

src/views/header.mustache

@@ -28,6 +28,7 @@
     <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/leaflet-easyprint@2.1.9/dist/bundle.min.js"></script>
     <script type="text/javascript" src="https://unpkg.com/leaflet.markercluster@1.4.1/dist/leaflet.markercluster.js"></script>
     <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/leaflet.locatecontrol@v0.70.0/dist/L.Control.Locate.min.js" charset="utf-8"></script>
+    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mustache.js/4.0.1/mustache.min.js"></script>
     {{#google_analytics_id}}
         <script type="text/javascript" src="//google-analytics.com/analytics.js"></script>
     {{/google_analytics_id}}