const convert = require("xml-js");

const content_template = {
    timepoint: 0,
    content: '',
    ct: 1,
    size: 20,
    color: 16777215,
    unixtime: Math.floor(Date.now() / 1000),
    uid: 0,
};

function time_to_second(time) {
    const t = time.split(':');
    let s = 0;
    let m = 1;
    while (t.length > 0) {
        s += m * parseInt(t.pop(), 10);
        m *= 60;
    }
    return s;
}

function make_response(contents) {
    let xml = {
        _declaration: {
            _attributes: {
                version: '1.0',
                encoding: 'utf-8'
            }
        },
        i: {
            d: []
        }
    }
    for (let content of contents) {
        xml.i.d.push({
            _attributes: {
                p: `${content.timepoint},${content.ct},${content.size},${content.color},${content.unixtime},${content.uid},26732601000067074`
            },
            _text: content.content
        });
    }


    const res = convert.js2xml(xml, {compact: true, spaces: 4})
    return res
}

module.exports = {time_to_second, make_response, content_template};