from collections import deque

play_queue=deque()
play_set=set()

def joinQueue(bot, nick, msg):
	args=msg.split(None, 1)
	name=args[1]
	for pair in play_set:
		if nick ==pair[0]:
			bot.say(nick+": you are already in queue as "+pair[1])
			return
		if name == pair[1]:
			bot.say(name+": is already registered to the user "+pair[0])
			return
	play_queue.append((nick, name))
	play_set.add((nick, name))
	bot.say(nick+" you have joined the queue as "+name)
joinQueue.commands=["^!joinQueue [^\s].+"]
joinQueue.privilege="regular"
joinQueue.usage=("joinQueue", "!joinQueue inGameName -- add your name to the queue to play in upcoming games")

def getPlayers(bot, nick, msg):
	args=msg.split()
	num= int(args[1])
	length=min(len(play_set), num)
	results=[]
	for x in range(length):
		pair = play_queue.popleft()
		play_set.remove(pair)
		results.append(pair[1])
	end=", ".join(results)
	if len(play_set) ==0:
		end+=" --queue is now empty"
	bot.say(end)
getPlayers.commands=["^!getPlayers [1-9]$"]
getPlayers.privilege="owners"

def removeNickOwner(bot, nick, msg):
	args=msg.split(None, 1)
	name=args[1]
	for pair in play_set:
		if pair[0] == name:
			play_set.remove(pair)
			play_queue.remove(pair)
			bot.say(name+" has been removed from the queue by "+nick)
			return
	bot.say("no such person in the queue")
removeNickOwner.commands=["^!removePerson [^\s].+"]
removeNickOwner.privilege="owners"

def exitQueue(bot, nick, msg):
	for pair in play_set:
		if pair[0] == nick:
			play_set.remove(pair)
			play_queue.remove(pair)
			bot.say(nick+" has been removed him/herself from the queue")
			return
	bot.say(nick+", you are not in the queue!")
exitQueue.commands=["^!exitQueue$"]	
exitQueue.usage=("exitQueue", "!exitQueue - remove yourself from the queue to play in upcoming games")