/*
 * Email and Free mobile credentials.
 */

let config = {
    free_user: xxxxxxx,
    free_password: "XXXXXXX",
    username: "xxxxxxxxxxxxxx",
    password: "xxxxxxxxxxxxxx",
    host: "imap.gmail.com",
    port: 993, // imap port
    tls: true,
};

/*
 * !!!!!!!!!!!!!!!!!!!!!!!!!!!
 * DO NOT EDIT FOLLOWING LINES, EXCEPT THE MESSAGE AT LINE 66!
 * !!!!!!!!!!!!!!!!!!!!!!!!!!!
 */

var MailListener = require("mail-listener2");
const freemobile = require('freemobile-sms');
const publicIp = require('public-ip');

/*
 * We make all new messages incoming fetched as read.
 */
config = {
    ...config,
    connTimeout: 10000,
    authTimeout: 5000,
    debug: console.log,
    tlsOptions: { rejectUnauthorized: false },
    mailbox: "INBOX",
    searchFilter: ["UNSEEN"],
    markSeen: true,
    fetchUnreadOnStart: false,
    mailParserOptions: {streamAttachments: true},
    attachments: false,
    attachmentOptions: { directory: "attachments/" }
};

/*
 *  For Free Mobile dependency
 */
var credentials = {
    user: config.free_user,
    password: config.free_password
};

var mailListener = new MailListener(config);

mailListener.start(); // start listening

mailListener.on("server:connected", function(){
    console.log("imapConnected");
});

mailListener.on("mail", async function (mail, seqno, attributes) {
    // when a mail is received
    console.log("emailParsed", mail);
    if (mail.from[0].address === config.username) {
        console.log("Alert has been raised!");
        var ip = await publicIp.v4(); // we get the public IP address

        freemobile.send('Alarm. Something weird is happening. Date: \n' + mail.date + '\n Admin interface: ' + ip, credentials)
            .then(() => {
                console.log("Message sent!");
            })
            .catch(error => {
                console.error('An error has occurred while sending the message.');
            });
    }
});

mailListener.on("error", function(err){

});

mailListener.on("server:disconnected", function(){
    console.log("imapDisconnected");
});

mailListener.on("attachment", function(attachment){
    console.log(attachment.path);
});