UPTIME (JS)

const Discord = require('discord.js');
client.on('message', message=> {
  if(message.content.startsWith('=uptime')) {
    let ms = client.uptime;
    let cd = 24 * 60 * 60 * 1000;
    let ch = 60 * 60 * 1000;
    let cm = 60 * 1000;
    let cs = 1000;
    let days = Math.floor(ms / cd);
    let dms = days * cd;
    let hours = Math.floor((ms - dms) / ch);
    let hms = hours * ch;
    let minutes = Math.floor((ms - dms - hms) / cm);
    let mms = minutes * cm;
    let seconds = Math.round((ms - dms - hms - mms) / cs);
    if (seconds === 60) {
        minutes++;
        seconds = 0;
    }
    if (minutes === 60) {
        hours++;
        minutes = 0;
    }
    if (hours === 24) {
        days++;
        hours = 0;
    }
    let dateStrings = [];

    if (days === 1) {
        dateStrings.push('**1** day');
    } else if (days > 1) {
        dateStrings.push('**' + String(days) + '** days');
    }

    if (hours === 1) {
        dateStrings.push('**1** hour');
    } else if (hours > 1) {
        dateStrings.push('**' + String(hours) + '** hours');
    }

    if (minutes === 1) {
        dateStrings.push('**1** minute');
    } else if (minutes > 1) {
        dateStrings.push('**' + String(minutes) + '** minutes');
    }

    if (seconds === 1) {
        dateStrings.push('**1** second');
    } else if (seconds > 1) {
        dateStrings.push('**' + String(seconds) + '** seconds');
    }
    let dateString = '';
    for (let i = 0; i < dateStrings.length - 1; i++) {
        dateString += dateStrings[i];
        dateString += ', ';
    }
    if (dateStrings.length >= 2) {
        dateString = dateString.slice(0, dateString.length - 2) + dateString.slice(dateString.length - 1);
        dateString += 'and ';
    }
    dateString += dateStrings[dateStrings.length - 1];
    const embed = new Discord.RichEmbed()
  .setTimestamp()
  .setThumbnail(message.author.iconURL)
  .addField(':clock: مدة تشغيل البوت', 'Bot\'s uptime', true)
  .addField(':runner: عدد السيرفرات:', `**${client.guilds.size}** servers`, true)
  .addField(':white_check_mark: مدة التشغيل:', dateString, true)
  .setColor(6583245);
    message.channel.send({embed})
  .catch(console.error);
}})