var discord = require('discord.js');
var roblox = require('roblox-js');
var client = new discord.Client();
var token = ""

client.on('guildMemberAdd', member => {
  let guild = member.guild;
  let user = member.user
  console.log(`${user.tag} joined ${guild}`)
});

client.on('guildMemberRemove', member => {
  let guild = member.guild;
  let user = member.user
  console.log(`${user.tag} left ${guild}`)
});

var prefix = '-';
var groupId = 4232087;
var maximumRank = 140;

function isCommand(command, message){
    var command = command.toLowerCase();
    var content = message.content.toLowerCase();
    return content.startsWith(prefix + command);
}

client.on('message', (message) => {
    if (message.author.bot) return; // Dont answer yourself.
    var args = message.content.split(/[ ]+/)

    if(isCommand('setRank', message)){
        if (message.author.id !== '238419054581252096' && message.author.id !== '249266594461515776' && !message.member.roles.get('462961781564768278')) return message.reply("you do not have permission to use that command")
        var username = args[1]
        var rankIdentifier = Number(args[2]) ? Number(args[2]) : args[2];
        if (!rankIdentifier) return message.channel.send("Please enter a rank");
        if (username){
            message.channel.send(`Checking ROBLOX for ${username}`)
            roblox.getIdFromUsername(username)
            .then(function(id){
                roblox.getRankInGroup(groupId, id)
                .then(function(rank){
                    if(maximumRank <= rank){
                        message.channel.send(`${id} is rank ${rank} and not promotable.`)
                    } else {
                        message.channel.send(`${id} is rank ${rank} and promotable.`)
                        roblox.setRank(groupId, id, rankIdentifier)
                        .then(function(newRole){
                            message.channel.send(`Changed rank to ${newRole.Name}`)
                        }).catch(function(err){
                            console.error(err)
                            message.channel.send("Failed to change rank.")
                        });
                    }
                }).catch(function(err){
                    message.channel.send("Couldn't get him in the group.")
                });
            }).catch(function(err){
                message.channel.send(`Sorry, but ${username} doesn't exist on ROBLOX.`)
           });
       } else {
           message.channel.send("Please enter a username.")
       }
       return;
   }

   if (isCommand('transfer', message)) {
     var oldGroup = 2710984
     var newGroup = 4234366

     var scope = args[1];
     if (!scope) scope = 'all';
     else var username = scope;

     if (scope.toLowerCase() === 'all') {
      if (message.author.id !== '238419054581252096') return message.reply("you do not have permission to use that command")
       message.channel.send("Fetching players")
       return roblox.getPlayers(newGroup)
       .then(function(group){
         message.channel.send("Transferring")
         for (let player of group.players){
           roblox.getRankInGroup(oldGroup, player.id)
           .then(function(rank){
             if (rank < maximumRank && rank > player.parent.role.Rank && rank !== player.parent.role.Rank) {
               roblox.setRank(newGroup, player.id, rank)
               .then(function(newRole){
                 message.author.send("Set " + player.name + "'s rank to " + newRole.Name)
               });
             }
           });
         }
       }).catch(function(err){
         console.error(err)
         message.channel.send("Failed to transfer.")
       });
     } else {
       message.channel.send(`Checking ROBLOX for ${username}`)
       return roblox.getIdFromUsername(username)
       .then(function(id){
         return roblox.getRankInGroup(oldGroup, id)
         .then(function(rank){
           if (rank >= maximumRank) return message.channel.send(`${id} is rank ${rank} in old group and not promotable.`);

           return roblox.setRank(newGroup, id, rank)
           .then(function(newRole){
             return message.channel.send(`Changed rank to ${newRole.Name} in new group`)
           })
           .catch(function(err) {
             console.error(err)
             message.channel.send("Failed to change rank.")
           })
         }).catch(function(err){
           message.channel.send("Couldn't get him in the group.")
         });
       }).catch(function(err){
           message.channel.send(`Sorry, but ${username} doesn't exist on ROBLOX.`)
        });
      }
    }
});

client.login(token)

roblox.login({username: "", password: ""}).then((success) => {
}).catch(() => {console.log("Sorry, it failed.");});