var pdate = function(timestamp){
    timestamp = parseInt(timestamp, 10)
    if (timestamp < 1000000000000){
        timestamp = timestamp * 1000;
    }
    return new Date(timestamp).toLocaleString().replace(',', '');
}

var pdate_short = function (timestamp) {
    var z = pdate(timestamp);
    return z.split('/')[0] + '/' + z.split('/')[1] + ' ' + z.split(' ')[1].split(':')[0] + ':' + z.split(' ')[1].split(':')[1] + ' ' + z.split(' ')[2];
}

var ptime = function(timestamp){
    timestamp = parseInt(timestamp, 10)
    if (timestamp < 1000000000000){
        timestamp = timestamp * 1000;
    }
    var d = new Date(timestamp);
    h = d.getHours();
    m = d.getMinutes();
    s = d.getSeconds();
    if (h < 10){
        h = "0" + h;
    }
    if (m < 10){
        m = "0" + m;
    }
    if (s < 10){
        s = "0" + s;
    }

    return h + ":" + m + ":" + s
}

function toFixed(n, fixed) {
    return ~~(Math.pow(10, fixed) * n) / Math.pow(10, fixed);
}

function niceDuration(seconds) {
    var result = ''
    remaining = seconds;
    if (remaining >= 3600){
        result += toFixed(remaining / 3600, 0) + 'h';
    }
    remaining = remaining % 3600;
    if (remaining >= 60) {
        result += toFixed(remaining / 60, 0) + 'm';
    }
    remaining = remaining % 60;
    if (remaining > 0) {
        result += toFixed(remaining, 0) + 's';
    }
    return result;
}

function niceDurationFractional(seconds) {
    if (seconds >= 3600) {
        return '' + toFixed(seconds / 3600 , 1) + 'h';
    }
    if (seconds >= 60) {
        return '' + toFixed(seconds / 60 , 1) + 'm';
    } else {
        return '' + seconds + 's';
    }
}

function horizBarChart(canvas, values, maxVal, bgColor='#010101', colors=["#14cc70", 'blue', 'red'], border=true, borderColor='#14cc70') {
    var ctx = canvas.getContext("2d");
    ctx.fillStyle = bgColor;
    ctx.fillRect(0, 0, canvas.width, canvas.height);
    barHeight = canvas.height / values.length;
    for (var i=0; i<values.length; i++) {
        ctx.fillStyle = colors[i % colors.length];
        ctx.fillRect(0, i * barHeight, canvas.width * (values[i] / maxVal), (i + 1) * barHeight);
    }
    if (border) {
        ctx.strokeStyle = borderColor;
        ctx.strokeRect(0, 0, canvas.width, canvas.height);

    }
}

function stringToColor (string, saturation = 80, lightness = 60) {
    if (string === 'UNKNOWN') {
        return 'rgb(128,128,128)';
    }
    let hash = 0;
    string = string + string + string + string + string + string + string;
    for (let i = 0; i < string.length; i++) {
  hash = string.charCodeAt(i) + ((hash << 5) - hash);
  hash = hash & hash;
    }
    return `hsl(${(hash % 360)}, ${saturation}%, ${lightness}%)`;
  }


function talkerIdPlusSystemToColor (talkerId, systemName) {
    if (talkerId === 'UNKNOWN') {
        return 'rgb(128,128,128)';
    }
    let string = talkerId + talkerId.split('').reverse().join('');
    for (var i=0; i<talkerId.length; i++) {
        string += systemName[parseInt(talkerId[i])];
    }
    let lightness = 30 + parseInt(talkerId) % 50;
    let saturation = 50 + parseInt(talkerId) % 20;

    let hash = 0;
    for (var i=0; i<string.length; i++) {
        hash = string.charCodeAt(i) + ((hash << 5) - hash);
        hash = hash & hash;
    }

    return `hsl(${(hash % 360)}, ${saturation}%, ${lightness}%)`;
}

function generateColorTalkerSpan(talkerId, systemName) {
    //const c = stringToColor(talkerId + systemName);
    const c = talkerIdPlusSystemToColor(talkerId, systemName);
    if (talkerId === 'UNKNOWN') {
        return '<span>?</span>'
    } else {
        return '<span style="background-color:' + c +'">🙍‍♂️</span>'
    }
}

function nbspByCount(count) {
    let result = '';
    for (let i=0; i<count; i++) {
        result += '&nbsp;';
    }
    return result;
}