#!/usr/bin/env node
/*eslint no-console: ["error", { allow: ["log", "warn", "error"] }] */
const args = process.argv.slice(2);
const { DownloaderHelper } = require('../dist');
const { byteHelper, color, COLOR_RED, COLOR_GREEN,
    COLOR_YELLOW, COLOR_CYAN, COLOR_MAGENTA,
    isValidPath, isValidUrl, inlineLog
} = require('./helpers');
const pkg = require('../package.json');

// Arguments
if (!args.length || args.length < 2) {
    return console.log('USAGE: ndh [destination] [url]');
}

const dest = args[0];
const url = args[1];

if (!isValidPath(dest)) {
    return console.error(color(COLOR_RED, 'Please use an existing folder or valid path'));
}

if (!isValidUrl(url)) {
    return console.error(color(COLOR_RED, 'Please use a valid URL'));
}

let progressLog = '';
const dl = new DownloaderHelper(url, dest, {
    headers: {
        'user-agent': pkg.name + '@' + pkg.version
    },
});

dl
    .on('end', _ =>
        inlineLog(progressLog + ' - ' + color(COLOR_GREEN, 'Download Completed'))
    )
    .on('retry', (attempt, opts) => {
        let count = Math.floor(opts.delay / 1000);
        const retryLog = () => {
            inlineLog(color(COLOR_YELLOW, `Retry Attempt: ${attempt}/${opts.maxRetries} | Starts on: ${count} secs`));
            if (count > 0) {
                setTimeout(() => retryLog(), 1000);
            }
            count--;
        };
        retryLog();
    })
    .on('resume', isResumed => {
        if (!isResumed) {
            console.warn(color(COLOR_YELLOW, "\nThis URL doesn't support resume, it will start from the beginning"));
        }
    })
    .on('progress.throttled', stats => {
        const progress = stats.progress.toFixed(1);
        const speed = byteHelper(stats.speed);
        const downloaded = byteHelper(stats.downloaded);
        const total = byteHelper(stats.total);

        const cName = color(COLOR_YELLOW, stats.name);
        const cSpeed = color(COLOR_MAGENTA, speed + '/s');
        const cProgress = color(COLOR_MAGENTA, progress + '%');
        const cSize = color(COLOR_CYAN, `[${downloaded}/${total}]`);
        progressLog = `${cName}: ${cSpeed} - ${cProgress} ${cSize}`;
        inlineLog(progressLog);
    });

dl.start().catch(err => console.error(color(COLOR_RED, 'Something happend'), err));