Refactor utils and organize routes/schema

utils/mail.js

@@ -0,0 +1,83 @@
+const fs = require('fs');
+const nodemailer = require("nodemailer");
+const config = require('../config');
+let Message = require('../schema/message.model');
+
+// loadDefaultTemplates() load the default email templates into the database
+// if no template exists for that name
+const loadDefaultTemplates = () => {
+    console.log("Loading default email templates...")
+    fs.readdir('./templates', (err, files) => {
+        files.forEach(file => {
+            fs.readFile('./templates/' + file, 'utf8', function (err, data) {
+                if (err) {
+                    console.log(err);
+                }
+                let name = file.substring(0, file.indexOf('.'));
+                Message.findOne({ name: name }, (err, msg) => {
+                    if (err) {
+                        console.log(err);
+                        return;
+                    }
+                    if (msg) {
+
+                    } else {
+                        let newMsg = Message();
+                        newMsg.name = name;
+                        newMsg.subject = data.substring(0, data.indexOf("\n"));
+                        newMsg.body = data.substring(data.indexOf("\n") + 1);
+                        newMsg.save()
+                            .then(() => {
+                                console.log("Loaded " + name + " message");
+                            })
+                            .catch(() => {
+                                console.log("Error loading messages from file.");
+                            });
+                    }
+                });
+            });
+        });
+    });
+}
+
+// sendMail(user, message, replacements) send an email with message to the user, making
+// replacements in the message
+// replacements is an array of data {from, to}
+const sendMail = async (user, message, replacements) => {
+    console.log("Sending mail...");
+
+    let transporter = nodemailer.createTransport({
+        host: config.mail.host,
+        port: config.mail.port,
+        secure: config.mail.secure,
+        auth: {
+            user: config.mail.user,
+            pass: config.mail.pass,
+        },
+    });
+    Message.findOne({ name: message }, (err, message) => {
+        let msgBody = message.body;
+
+        for (let i = 0; i < replacements.length; i++) {
+            msgBody = msgBody.replace(replacements[i].from, replacements[i].to);
+        }
+
+        console.log(message);
+
+        try {
+            transporter.sendMail({
+                from: config.mail.from,
+                to: user.email,
+                subject: message.subject,
+                text: msgBody,
+            });
+
+        } catch (error) {
+            console.log("Error sending mail: ")
+            console.error(error);
+        }
+    })
+}
+
+module.exports.loadDefaultTemplates = loadDefaultTemplates;
+module.exports.sendMail = sendMail;