#!/usr/bin/python
#
# twitter:
# Twitter Iridium flares and ISS flybys above Birmingham
#
# Copyright (c) 2009 Matthew Somerville. http://www.dracos.co.uk/

import urllib, urllib2, sys, codecs
from datetime import datetime, timedelta
import tweepy
from config import *
dir = sys.path[0] + '/'

def main():
    soon = datetime.today() + timedelta(minutes=30)

    weather = open(dir + 'weather.tsv').read()
    weather_epoch, weather_clear, weather_desc, weather_code = weather.strip().split("\t")

    flares = open(dir + 'iridium.tsv')
    for row in flares:
        epoch, mag, altitude, azimuth, compass, name = row.strip().split("\t")
        epoch = datetime.fromtimestamp(float(epoch))
        if soon >= epoch and soon < epoch + timedelta(minutes=5):
            s = u"Iridium flare: magnitude %s at %s, altitude %d\u00b0, in direction %d\u00b0 (%s), from %s. Weather: %s." % (
                mag, epoch.strftime('%H:%M:%S'), float(altitude), float(azimuth), compass, name, weather_desc )
            twitter(s)

    iss = codecs.open(dir + 'iss.tsv', encoding='utf-8')
    for row in iss:
        epoch, mag, start_time, end_time, start_az, end_az, max_time, max_alt, max_az = row.strip().split("\t")
        epoch = datetime.fromtimestamp(float(epoch))
        if soon >= epoch and soon < epoch + timedelta(minutes=5):
            s = u"ISS pass: magnitude %.1f, %s\u2013%s from %s to %s, maximum altitude %s at %s in %s. Weather: %s." % (
                float(mag), start_time, end_time, start_az, end_az, max_alt, max_time, max_az, weather_desc)
            twitter(s)

def twitter(line):
    line = line.encode('utf-8')
    auth = tweepy.OAuthHandler(CONSUMER_KEY, CONSUMER_SECRET)
    auth.set_access_token(ACCESS_TOKEN, ACCESS_TOKEN_SECRET)
    print line
    return tweepy.API(auth).update_status(line)

main()