#!/bin/bash /usr/scripts/python.sh
# -*- coding: utf-8 -*-
#
# Trigger library, designed to send events messages.
#
# Author    : Pierre-Elliott Bécue <becue@crans.org>
# License   : GPLv3
# Date      : 18/05/2014

import cmb
import cPickle
import gestion.config.trigger as trigger_config
import cranslib.clogger as clogger
import pika

logger = clogger.CLogger("trigger", "info")

class Event(cmb.BasicProducer):
    """
    Event tracker
    """
    def __init__(self, app_id):
        """Extended

        """
        logger.info("Starting trigger Event program…")
        super(Event, self).__init__(trigger_config.master, 'trigger.event', app_id)
        self._connection = self.connect()
        self.get_chan()

    def send_message(self, routing_key, body):
        """Sends basic message with app_id and body

        """
        try:
            logger.info("Sending message %s with routing_key %s.", body, routing_key)
            body = cPickle.dumps(body)
            self._channel.basic_publish(exchange=self._exchange_name,
                                        routing_key=routing_key,
                                        body=body,
                                        properties=pika.BasicProperties(
                                            delivery_mode=2,
                                            app_id=self._app_id,
                                        ))
        except:
            print "Failure in trigger.event"
            raise

    def announce(self, body):
        self.send_message("trigger.announce", body)