const Discord = require('discord.js');
const puppeteer = require('puppeteer-extra');
const fs = require('fs');
const https = require('https');
const StealthPlugin = require('puppeteer-extra-plugin-stealth')
const Client = require('@infosimples/node_two_captcha')
const RecaptchaPlugin = require('puppeteer-extra-plugin-recaptcha')

const client = new Discord.Client();

global.username = ''
global.password = ''
global.discordlogin = ''
global.sitekey = ''
global.twocaptchakey = ''

var queue = false;

puppeteer.use(StealthPlugin())
puppeteer.use(
    RecaptchaPlugin({
        provider: {
            id: '2captcha',
            token: global.twocaptchakey

        },
        visualFeedback: true // colorize reCAPTCHAs (violet = detected, green = solved)
    })
)

const download = (url, destination) => new Promise((resolve, reject) => {
    const file = fs.createWriteStream(destination);

    https.get(url, response => {
        response.pipe(file);

        file.on('finish', () => {
            file.close(resolve(true));
        });
    }).on('error', error => {
        fs.unlink(destination);

        reject(error.message);
    });
});

client.on('ready', () => {
    login_chegg()
    console.log(`Logged in as ${client.user.tag}!`);
});

client.on('message', message => {

    if (message.content.startsWith(`-chegg`)) {

        var s = message.content.replace('-chegg', '')

        if (!s.includes('https://www.chegg.com/homework-help')) {
            const errorEmbed = new Discord.MessageEmbed()
                .setColor('#C91019')
                .setTitle('Error')
                .setURL('https://pain.rip')
                .setDescription('No! Chegg links only!')
                .setThumbnail('https://images-ext-1.discordapp.net/external/9yiAQ7ZAI3Rw8ai2p1uGMsaBIQ1roOA4K-ZrGbd0P_8/https/cdn1.iconfinder.com/data/icons/web-essentials-circle-style/48/delete-512.png?width=461&height=461')
                .setTimestamp()
                .setFooter('Powered by Pain Calendar');
            message.channel.send(message.author.toString(), {
                embed: errorEmbed
            });
            return;
        }

        if (queue) {
            const errorEmbed = new Discord.MessageEmbed()
                .setColor('#C91019')
                .setTitle('Error')
                .setURL('https://pain.rip')
                .setDescription('Wait your turn!')
                .setThumbnail('https://images-ext-1.discordapp.net/external/9yiAQ7ZAI3Rw8ai2p1uGMsaBIQ1roOA4K-ZrGbd0P_8/https/cdn1.iconfinder.com/data/icons/web-essentials-circle-style/48/delete-512.png?width=461&height=461')
                .setTimestamp()
                .setFooter('Powered by Pain Calendar');
            message.channel.send(message.author.toString(), {
                embed: errorEmbed
            });
            return;
        }

        process_answer(s)

        async function process_answer(url) {
            queue = true;
            const processEmbed = new Discord.MessageEmbed()
                .setColor('#F85B00')
                .setTitle('Processing')
                .setURL('https://pain.rip')
                .setDescription('Your request is being processed!')
                .setTimestamp()
                .setFooter('Powered by Pain Calendar');
            var msg = message.channel.send(message.author.toString(), {
                embed: processEmbed
            });
            await page[0].goto(url, {
                waitUntil: 'networkidle2'
            });
            global.screenshot = await page[0].screenshot({
                path: 'test.png',
                fullPage: true
            });


            const images = await page[0].evaluate(() => Array.from(document.images, e => e.src));
            let result;
            var question = false;
           /*for (let i = 0; i < images.length; i++) {
                if (images[i].includes('media.cheggcdn.com')) {
                    result = await download(images[i], `image-${i}.png`);

                    if (result === true) {
                        if (!question) {
                            message.author.send("INDIVIDUAL IMAGES:", {
                                files: [images[i]]
                            })
                            question = true;
                        } else {
                            message.author.send({
                                files: [images[i]]
                            })
                        }
                        console.log('Success:', images[i], 'has been downloaded successfully.');
                    } else {
                        console.log('Error:', images[i], 'was not downloaded.');
                        console.error(result);
                    }
                }
            }*/

            const element = await page[0].$('.question-body-text');
            element_property = await element.getProperty('innerHTML');
            const inner_html = await element_property.jsonValue();

            const element2 = await page[0].$('.answer-body');
            element_property2 = await element2.getProperty('innerHTML');
            const inner_html2 = await element_property2.jsonValue();

            await fs.writeFile("answer.html", inner_html.concat('\n', inner_html2), function(err) {
                if (err) return console.log(err);

            });
            message.author.send("PAGE SCREENSHOT:", {
                files: ['./test.png']
            })
            message.author.send("HTML ANSWER:", {
                files: ['./answer.html']
            })

            const successEmbed = new Discord.MessageEmbed()
                .setColor('#00F800')
                .setTitle('Success')
                .setURL('https://pain.rip')
                .setDescription('Your request has been processed, check your DMs!')
                .setThumbnail('https://images-ext-2.discordapp.net/external/OVUlwF6n8j6wANCkwDzG_Rb2ivqCd9bRF10DC2Z8lS0/https/s5.gifyu.com/images/ezgif.com-optimized7ce94c5d4a783cb.gif')
                .setTimestamp()
                .setFooter('Powered by Pain Calendar');
            message.channel.send(message.author.toString(), {
                embed: successEmbed
            });

            queue = false;
        }
    }

})
client.login(discordlogin);
async function login_chegg() {
    global.browser = await puppeteer.launch({
        headless: false,
        slowMo: 20,
        userDataDir: 'C:\\userData',
    });

    global.page = await browser.pages();
    var userAgent = require('user-agents');

    await page[0].setUserAgent(userAgent.toString());
    // await page[0].setUserAgent('5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36');
    console.log("Going to Chegg");
    await page[0].goto("https://www.chegg.com/auth?action=login&redirect=https%3A%2F%2Fwww.chegg.com%2F", {
        waitUntil: 'networkidle2'
    });

    console.log("Logging in");
    try {
        if (await page[0].$eval('.page-title > h1', el => el.innerText) === "Please verify you are a human") {
            console.log("Solving Captcha");

            // await page[0].solveRecaptchas();

            twoClient = new Client(global.twocaptchakey, {
                timeout: 300000,
                polling: 5000,
                throwErrors: true
            });

            const response = await twoClient.decodeRecaptchaV2({
                googlekey: global.sitekey,
                pageurl: page[0].url()
            });

            const answer = response._text;

            console.log("Captcha Answer:");
            console.log(answer);
            page[0].evaluate(`handleCaptcha("${answer}")`);
            // page[0].evaluate(answer => {
            //     handleCaptcha(answer);
            // }, answer)
            await page[0].waitFor(10000);
        }
    }
    catch (error) {
        console.log(error);
    }
    await page[0].type('#emailForSignIn', username, {
        delay: 100
    });
    await page[0].type('#passwordForSignIn', password, {
        delay: 100
    });
    await page[0].click('form > div > div > div > footer > button');
    console.log("Ready!");
}