add emoji

client.on('message', message => {
const args = message.content.slice(prefix.length).trim().split(/ +/);
    const command = args.shift().toLowerCase();
if(command === 'addemoji') {
    if(!message.member.hasPermission("ADMINSTRATOR")) return;
    if(!args[0]) return message.channel.send(new Discord.MessageEmbed()
          .setColor('#850101')
          .setDescription(`> usage: ${prefix}emoji [emoji] [Name]`))
          if(!args[1]) return message.channel.send(new Discord.MessageEmbed()
          .setColor('#850101')
          .setDescription(`> usage: ${prefix}emoji [emoji] [Name]`))
          if(args[2]) return message.channel.send(new Discord.MessageEmbed()
          .setColor('#850101')
          .setDescription(`> usage: ${prefix}emoji [emoji] [Name]`))

           const hasEmoteRegex = /<a?:.+:\d+>/gm
  const emoteRegex = /<:.+:(\d+)>/gm
  const animatedEmoteRegex = /<a:.+:(\d+)>/gm

  const messages = await message.channel.messages.fetch()
  const message1 = message.content.match(hasEmoteRegex)
if(!message1) return message.channel.send(new Discord.MessageEmbed()
          .setColor('#850101')
          .setDescription('invalid emoji'))
  if (emoji = emoteRegex.exec(message1)) {
          const url = "https://cdn.discordapp.com/emojis/" + emoji[1] + ".png?v=1"
  .then(emoji => { message.channel.send(new Discord.MessageEmbed()
          .setColor('#850101')
          .setDescription(`added : ${emoji.name}!`)
          .setImage(url))
            message.guild.emojis.create(url, args[1])

  })
  .catch(console.error)
  }
  else if (emoji = animatedEmoteRegex.exec(message1)) {
          const url = "https://cdn.discordapp.com/emojis/" + emoji[1] + ".gif?v=1"
  message.guild.emojis.create(url, args[1])
  .then(emoji => message.channel.send(new Discord.MessageEmbed()
          .setColor('#850101')
          .setDescription(`added : ${emoji.name}!`)
          .setImage(url)))
  .catch(console.error)
  }
  else {
  message.channel.send("Couldn't find an emoji to paste!")
  }
  }
});