var bytesjs = require('component-bytes.js');

exports.getCounter = (fileLength, dotStep) => {
    var total = 0;
    var step = dotStep || (1024 * 64);
    var percentPrintFlag = {};
    var percentN = (fileLength > (60 * 1024 * 1024)) ? 100 : 10;
    return (len) => {
        var t = total;
        total += len;
        var n = parseInt(total / step) - parseInt(t / step);
        if (n > 0) { n.times(() => { print('.') }); }
        if (fileLength) {
            var updatePercentN = parseInt((total * percentN) / fileLength);
            if (updatePercentN && (!(percentPrintFlag[updatePercentN]))) {
                percentPrintFlag[updatePercentN] = 1;
                print('[' + parseInt((total * 100) / fileLength) + '%]');
            }
        }
    };
};

exports.getCounter2 = (dotStep) => {
    var total = 0;
    var step = dotStep || (1024 * 64);
    var percentPrintFlag = {};
    return (len, fileLength) => {
        var t = total;
        total += len;
        var n = parseInt(total / step) - parseInt(t / step);
        if (n > 0) { n.times(() => { print('.') }); }
        if (fileLength > 0) {
            var updatePercent10 = parseInt((total * 10) / fileLength);
            if (updatePercent10 && (!(percentPrintFlag[updatePercent10]))) {
                percentPrintFlag[updatePercent10] = 1;
                print('[' + parseInt((total * 100) / fileLength) + '%]');
            }
        }
    };
};

exports.getCounter2Bar = (dotStep) => {
    Packages.me.hatter.tools.jssp.main.StandaloneMainInteractive.initJLine(); // require jline
    var total = 0;
    var start = $$.date().millis();
    var step = dotStep || (1024 * 64);
    var percentPrintFlag = {};
    return (len, fileLength) => {
        var t = total; total += len;
        var diff = $$.date().millis() - start;
        var download = bytesjs.showBytes(total);
        var speed = 'unknown';
        if (diff > 0) {
            speed = bytesjs.showBytes(parseInt(total * 1000 / diff)) + '/s';
        }
        if (fileLength > 0) {
            var width = Packages.jline.TerminalFactory.get().getWidth();
            var per = ' ' + $$.num(total).mul(100).divr(fileLength, 2, null) + '% [' + download + ' - ' + speed + ']';
            var w = $$.num(total).divr((fileLength), 10, null).mul(width - 2 - per.length).floor().aint();
            reprint(repeat('>', w) + per);
        } else {
            reprint('Downloaded: ' + download + ', speed: ' + speed);
        }
    };
};

exports.getCounterBar = (fileLength) => {
    Packages.me.hatter.tools.jssp.main.StandaloneMainInteractive.initJLine(); // require jline
    var total = 0;
    return (len) => {
        var width = Packages.jline.TerminalFactory.get().getWidth();
        total += len;
        var per = ' ' + $$.num(total).mul(100).divr(fileLength, 2, null) + '%';
        var w = $$.num(total).divr((fileLength), 10, null).mul(width - 1 - per.length).floor().aint();
        print('\r' + repeat('>', w) + per + '\033[K');
    };
};