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import webkitpy.tool.bot.irc_command as irc_command

from webkitpy.common.net.irc.ircbot import IRCBotDelegate

from webkitpy.common.thread.threadedmessagequeue import ThreadedMessageQueue

class _IRCThreadTearoff(IRCBotDelegate):

    def __init__(self, password, message_queue, wakeup_event):

        self._password = password

        self._message_queue = message_queue

        self._wakeup_event = wakeup_event

    # IRCBotDelegate methods

    def irc_message_received(self, nick, message):

        self._message_queue.post([nick, message])

        self._wakeup_event.set()

    def irc_nickname(self):

        return "sheriffbot"

    def irc_password(self):

        return self._password

class SheriffIRCBot(object):

    def __init__(self, tool, sheriff):

        self._tool = tool

        self._sheriff = sheriff

        self._message_queue = ThreadedMessageQueue()

    def irc_delegate(self):

        return _IRCThreadTearoff(self._tool.irc_password,

                                 self._message_queue,

                                 self._tool.wakeup_event)

    def process_message(self, message):

        (nick, request) = message

        tokenized_request = request.strip().split(" ")

        if not tokenized_request:

            return

        command = irc_command.commands.get(tokenized_request[0])

        args = tokenized_request[1:]

        if not command:

            # Give the peoples someone to talk with.

            command = irc_command.Eliza

            args = tokenized_request

        response = command().execute(nick, args, self._tool, self._sheriff)

        if response:

            self._tool.irc().post(response)

    def process_pending_messages(self):

        (messages, is_running) = self._message_queue.take_all()

        for message in messages:

            self.process_message(message)