/* eslint-disable consistent-return */
const formidable = require('formidable');
const fs = require('fs-extra');
const ejs = require('ejs');

async function paste(req, res) {
    res.setHeader('Content-Type', 'text/text');
    const fileName = this.randomToken(5); // 916,132,832 possible file names
    const form = new formidable.IncomingForm();
    const protocol = this.protocol();
    form.parse(req, (err, fields, files) => {
        const userIP = req.headers['x-forwarded-for'] || req.connection.remoteAddress || req.socket.remoteAddress || req.connection.socket.remoteAddress;
        if (!this.auth(this.c.key, fields.key, this.c)) {
            res.statusCode = 401;
            res.write('Unauthorized');
            res.end();
            return this.log.warning(`Unauthorized User | File Upload | ${userIP}`);
        }
        this.db.get('files')
            .push({
                path: `/${fileName}`,
                ip: userIP,
                views: 0,
            })
            .write();
        const oldpath = files.fdata.path;
        const newpath = `${__dirname}/../uploads/${fileName + files.fdata.name.toString().match(/(\.)+([a-zA-Z0-9]+)+/g, '').toString()}`;
        if (Math.round((files.fdata.size / 1024) / 1000) > this.c.paste.max_upload_size) {
            if (this.monitorChannel !== null) this.bot.createMessage(this.monitorChannel, `\`\`\`MARKDOWN\n[FAILED PASTE][USER]\n[FILE](${files.fdata.name})\n[SIZE](${Math.round(files.fdata.size / 1024)}KB)\n[TYPE](${files.fdata.type})\n[IP](${userIP})\n\n[ERROR](ERR_FILE_TOO_BIG)\`\`\``);
            res.statusCode = 413;
            res.write(`${protocol}://${req.headers.host}/ERR_FILE_TOO_BIG`);
            return res.end();
        }
        fs.move(oldpath, newpath, () => {
            fs.readFile(newpath, 'utf-8', (_err, data) => {
                const stream = fs.createWriteStream(`${__dirname}/../uploads/${fileName}.html`);
                stream.once('open', () => {
                    // eslint-disable-next-line no-unused-vars
                    let cleaned = data.replace(/>/g, '&gt');
                    cleaned = cleaned.replace(/</g, '&lt');
                    ejs.renderFile(`${__dirname}/../views/paste.ejs`, {
                        ogDesc: data.match(/.{1,297}/g)[0],
                        pData: data,
                    }, {}, (_renderErr, str) => {
                        stream.write(str);
                    });
                    stream.end();
                    fs.unlink(newpath, delErr => {
                        if (delErr) return this.log.warning(delErr);
                    });
                    res.write(`${protocol}://${req.headers.host}/${fileName}`);
                    return res.end();
                });
            });
        });
        if (this.monitorChannel !== null) this.bot.createMessage(this.monitorChannel, `\`\`\`MARKDOWN\n[NEW PASTE][USER]\n[SIZE](${Math.round(files.fdata.size / 1024)}KB)\n[IP](${userIP})\n\`\`\`\n${protocol}://${req.headers.host}/${fileName}`);
    });
}
module.exports = paste;