import { exec } from "child_process";

const randomUserAgent = require("random-useragent");

const browsers = [
    {
        name: "Chrome",
        minVersion: 55
    },
    {
        name: "Firefox",
        minVersion: 50
    },
];

const folders = [
    "/Browsers - Linux",
    "/Browsers - Mac",
    // "Browsers - Windows",
];

const getRandomUserAgent = (): string => {
    return randomUserAgent.getRandom((ua: any) => {
        return folders.some(e => e === ua.folder) &&
            browsers.some(e => ua.browserName === e.name && parseInt(ua.browserMajor, 10) > e.minVersion);
    }) as string;
};

const killChromium = (): Promise<void> => {
    return new Promise((resolve, reject) => {
        console.log("Killing Chromium processes");
        const cmd = "ps aux | grep -v grep | grep -i \"chromium\" | awk -F ' +' '{print $2}' | xargs kill -9 || :";
        exec(cmd, (err, stdout, stderr) => {
            if (err) {
                console.error(err);
                return reject(err);
            }

            console.log(stdout);
            return resolve();
        });
    });
};

export {
    getRandomUserAgent,
    killChromium,
};