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import time
import threading
import irctk
import random

class Bot(threading.Thread):
    host = 'tolkien.freenode.net'
    port = 6697
    ssl  = True
    password = None

    def __init__(self, channel, threads, queue, name, rate, per):
        threading.Thread.__init__(self)
        self.threads = threads
        self.queue = queue
        self.name  = name
        self.channel = channel
        # following for rate limiting:
        self.rate  = rate
        self.per   = per
        self.last_check = time.time()
        self.allowance  = rate 

        self.log('starting up')
        self.ready = False

        self.client = irctk.Client(nickname=name, ident=name, realname=name, password=Bot.password)
        self.client.delegate = self
        self.client.connect(Bot.host, Bot.port, use_tls=Bot.ssl)

    def irc_raw(self, client, line):
        try:
            self.log('IRC: ' + line)
        except:
            self.log('failed to log')
        #pass

    def log(self, line):
        print "{} [{}] {}".format(time.strftime('%H:%M'), self.name, line)

    def irc_registered(self, client):
        self.log('joining ' + self.channel)
        channel = client.add_channel(self.channel)
        channel.join()

    def irc_channel_join(self, client, nick, channel):
        if str(nick) == str(client.get_nickname()):
            self.log('im ready :)')
            self.ready = True

    def can_send(self):
        current = time.time()
        time_passed = current - self.last_check;
        self.last_check = current
        self.allowance += time_passed * (self.rate / self.per)

        if self.allowance > self.rate:
            self.allowance = self.rate

        if self.allowance > 1.0:
            self.allowance -= 1.0
            return True

        return False

    def run(self):
        self.log('run() called')

        while True:
            waiting = True
            while waiting:
                for thread in self.threads:
                    if not thread.ready:
                        waiting = True
                        break
                    else:
                        waiting = False

            time.sleep(random.random())

            # start flushing the queue 
            while self.can_send():
                try:
                    line = self.queue.popleft()
                    self.client.send_line(
                        'PRIVMSG ' + self.channel + ' :' + line
                    )
                    time.sleep(0.25)
                except IndexError:
                    # end of queue
                    self.log('done working')
                    self.client.quit('bye bye')
                    return

            time.sleep(0.1)