index.js

const https = require('https')
const Discord = require('discord.js')
const schedule = require('node-schedule')
const cheerio = require('cheerio')
const client = new Discord.Client();
const fs = require('fs');

client.on('ready', () => {
    console.log(`Logged in succesfully as ${client.user.tag}`);
    var today = new Date(Date.now());
    fillQuests(today);
})


/**
 * Gets from an https url
 * @param {String} url Url to get (https)
 * @param {Function(String)} callback Function to call with data
 * @param {Function(String, String)} [error=()=>{throw `error getting ${url}`}] Error callback
 */

function getData(url, callback, error) {
    https.get(url, (res) => {
        var rawData = '';
        res.on('data', (chunk) => {
            rawData += chunk;
        });
        res.on('end', () => {
            callback();
        });
        res.on('error', () => {
            if (error) {
                error(url, rawData);
            } else {
                throw `error getting ${url}`;
            }
        });
    })
}


/**
 * 
 * @param {Date} startDate Start date
 */

function fillQuests(startDate) {
    getData(
        'https://pso2.com/news/urgent-quests',
        (rawData) => {
            const $ = cheerio.load(rawData)
            page = $("li.sr:nth-child(1) > div:nth-child(2) > div:nth-child(3) > a:nth-child(4)").attr('onclick').replace(/\(ShowDetails\('/gi, '').replace(/'.*/gi, '')
            url = "https://pso2.com/news/urgent-quests/" + page
            console.log(url)
            getData(
                url,
                (rawData) => {
                    const $ = cheerio.load(rawData)
                    var iframes = $("iframe")
                    var src = ''
                    for (let i = 0; i < iframes.length; i++) {
                        const iframe = iframes[i];
                        if (iframe.attribs['src'].includes("calendar.google.com")) {
                            src = iframe.attribs['src']
                            break
                        }
                    }
                    if (src == '') {
                        throw 'calendar not found'
                    }
                    src = src.replace(/.*&src=/gi, '').replace(/&.*/gi, '')
                    var calendarId = Buffer.from(src, 'base64');
                    var endDate = new Date(startDate.getTime())
                    endDate.setMonth(endDate.getMonth() + 1)
                    getData(
                        `https://clients6.google.com/calendar/v3/calendars/pso2.schedule@gmail.com/events?calendarId=${calendarId}&singleEvents=true&timeZone=Europe%2FMadrid&maxAttendees=1&maxResults=250&sanitizeHtml=true&timeMin=${startDate.getFullYear()}-${startDate.getMonth() + 1}-${startDate.getDate()}T00%3A00%3A00%2B02%3A00&timeMax=${endDate.getFullYear()}-${endDate.getMonth() + 1}-${endDate.getDate()}T00%3A00%3A00%2B02%3A00&key=AIzaSyBNlYH01_9Hc5S1J9vuFmu2nUqBZJNAXxs`,
                        (rawData) => {
                            schheduleCalendar(rawData);
                        });
                });
        });
}


/**
 * 
 * @param {String} txt 
 */

function schheduleCalendar(txt) {
    fs.writeFile('./res.json', rawData, 'utf8')
    const cal = JSON.parse(rawData);
    var i = 0;
    for (i = 0; i < cal.items.length; i++) {
        const event = cal.items[i];
        var date = new Date(Date.parse(event.start.dateTime));
        var remind = new Date(date.getTime()).setMinutes(date.getMinutes() - 30);
        if (event["description"]) {
            var description = String(event["description"])
                .replace(/<[^>]*>|\n|\r|\ \ /gi, (x) => {
                    switch (x[1]) {
                        case '/':
                            switch (x[2]) {
                                case 'p':
                                    return '\n';
                                case 'b':
                                    return '**';
                                case 'a':
                                    return '';
                                default:
                                    return x;
                            }
                            case 'a':
                            case 'p':
                                return '';
                            case 'b':
                                switch (x[2]) {
                                    case 'r':
                                        return '\n';
                                    default:
                                        return '**';
                                }
                                case '\n':
                                case '\r':
                                    return '';
                                default:
                                    return x;
                    }
                });
            description = description.replace(/\s\s|[\n|\s]+$/gi, '');
            console.log((i + 1) + " " + description);
            schedule.scheduleJob(remind, () => {
                sendquest(date, event["summary"], description);
            });
        } else {
            console.log((i + 1) + " NO DESCRIPTION");
            schedule.scheduleJob(remind, () => {
                sendquest(date, event["summary"]);
            });
        }
    }
    console.log(`Scheduled ${i} events`);

    var resetTime = Date.parse(cal.items[cal.items.length - 1].end.dateTime);
    schedule.scheduleJob(resetTime, () => {
        fillQuests(resetTime);
    });
    console.log(`Will fetch calendar again at ${cal.items[cal.items.length - 1].end.dateTime}`);
}


/**
 * 
 * @param {Date} date
 * @returns {String}
 */

function emojiHour(date) {
    const emojiConvert = {
        0: '0️⃣',
        1: '1️⃣',
        2: '2️⃣',
        3: '3️⃣',
        4: '4️⃣',
        5: '5️⃣',
        6: '6️⃣',
        7: '7️⃣',
        8: '8️⃣',
        9: '9️⃣'
    };
    const hour = date.getHours();
    const minute = date.getMinutes();
    return `${emojiConvert[parseInt(hour / 10)]}${emojiConvert[hour % 10]}💠${emojiConvert[parseInt(minute / 10)]}${emojiConvert[minute % 10]}`;
}


/**
 * 
 * @param {Date} date
 * @param {String} title 
 * @param {String} [description='']
 */

function sendquest(date, title, description) {
    if (description) {
        description = `\n${description}`;
    } else {
        description = '';
    }
    client.channels.fetch(process.env.channelId).then((channel) => {
        channel.send(`${emojiHour(date)}\n**${title}**${description}`)
            .then(() => {
                console.log(`sent event ${title}`)
            })
            .catch(console.error);
    }).catch(console.error)
}

client.login(process.env.BOT_TOKEN)
    .catch(() => {
        console.error("Error login in, check secrethub");
    });