from django.utils import timezone
from datetime import timedelta
from ircbot.utils import add_irc_message
import logging
logger = logging.getLogger("bornhack.%s" % __name__)


def handle_team_event(eventtype, irc_message=None, irc_timeout=60, email_template=None, email_formatdict=None):
    """
    This method is our basic event handler.
    The type of event determines which teams receive notifications.
    TODO: Add some sort of priority to messages
    """
    logger.info("Inside handle_team_event, eventtype %s" % eventtype)

    # get event type from database
    from .models import Type
    try:
        eventtype = Type.objects.get(name=eventtype)
    except Type.DoesNotExist:
        # unknown event type, do nothing
        logger.error("Unknown eventtype %s" % eventtype)
        return

    if not eventtype.teams:
        # no routes found for this eventtype, do nothing
        logger.error("No routes round for eventtype %s" % eventtype)
        return

    # loop over routes (teams) for this eventtype
    for team in eventtype.teams:
        logger.info("Handling eventtype %s for team %s" % (eventtype, team))
        team_irc_notification(team=team, eventtype=eventtype, irc_message=irc_message, irc_timeout=irc_timeout)
        team_email_notification(team=team, eventtype=eventtype, email_template=None, email_formatdict=None)
        # handle any future notification types here..


def team_irc_notification(team, eventtype, irc_message=None, irc_timeout=60):
    """
    Sends IRC notifications for events to team IRC channels
    """
    logger.info("Inside team_irc_notification, message %s" % irc_message)
    if not irc_message:
        logger.error("No IRC message found")
        return

    if not eventtype.irc_notification:
        logger.error("IRC notifications not enabled for eventtype %s" % eventtype)
        return

    if not team.irc_channel or not team.irc_channel_name:
        logger.error("team %s is not IRC enabled" % team)
        return

    # send an IRC message to the the channel for this team
    add_irc_message(
        target=team.irc_channel_name,
        message=irc_message,
        timeout=60
    )
    logger.info("Added new IRC message for channel %s" % team.irc_channel_name)


def team_email_notification(team, eventtype, email_template=None, email_formatdict=None):
    """
    Sends email notifications for events to team mailinglists (if possible,
    otherwise directly to the team responsibles)
    """
    if not email_template or not email_formatdict or not eventtype.email_notification:
        # no email message found, or email notifications are not enabled for this event type
        return

    if team.mailing_list:
        # send notification to the team mailing list
        recipient_list = [team.mailing_list]
    else:
        # no team mailinglist, send to the team responsibles instead
        recipient_list = [resp.email for resp in team.responsible_members.all()]

    # TODO: actually send the email here