#!/usr/bin/python

import optparse
import os
import re
import string
import subprocess
import sys
import urllib2

__author__ = "nosmo@netsoc.tcd.ie (nosmo)"

clients = ["o2sms", "meteorsms", "vodasms"]
CLIENTCHOICE = 0

def GetTrack(user):
    """Gets a user's last listened to track.

    Uses the handy dandy audioscrobbler feed and parses out the track.
    En-dashes are for losers.

    Args:
     user: the last.fm username

    Returns:
     track: the last listened to track
    """

    f = urllib2.urlopen("http://ws.audioscrobbler.com/1.0/user/%s/recenttracks.txt" % user)
    track = re.compile("\n").split(f.read())[0]

    # get rid of that filthy en-dash
    track = track.decode( 'utf-8')
    track = track.replace( u'\u2013', '-')

    track = re.compile(",").split(track)[1]

    return track

def GetNumber(person):
    """Gets the number for a contact name in the o2sms config.

    This needs to be updated for people who use other silly networks.

    Args:
     person: a nickname for a number

    Returns:
     number: a string containing the person's number
    """

    o2smsrc = open("%s/.%s/config" % (os.environ["HOME"], clients[CLIENTCHOICE]),"r")
    o2name = " %s " % person
    number = ""

    for line in o2smsrc.readlines():
	if string.find(line, o2name) >= 0:
	    line = line.rsplit(" ")[2]
	    number = line.rstrip("\n")
	    break
    return number

def SendMessage(number, track, o2name):
    """Sends the message with the track affixed.

    Seriously, this is fucking stupid.

    Args:
     number: the number to send to
     track: the track name and artist
     o2name: the username of the person to send to

    """

    try:
	lastline = raw_input("[ recipient : %s (%s) ]\n" % (o2name, number))
	message = []
	
	while lastline and lastline != ".":
	    message.append(lastline)
	    lastline = raw_input()

    except EOFError:
	None

    message.append(track)
    message = "\n".join(message)

    #Need to surpress output here or something

    text = subprocess.Popen("echo \"%s\" | %s %s" % (message, clients[CLIENTCHOICE], number), shell=True)
    text.wait()

    #Need to check exit code

def main():

    parser = optparse.OptionParser(usage="Usage: -l <last.fm username> -n <o2sms username>")
    parser.add_option("-l", "--lastfm",action="store", type="string", dest="lastfm",
		      help=("The last.fm username for the song to be grabbed from"))
    parser.add_option("-n", "--number", action="store", type="string", dest="o2num",
		      help="The number to which you wish to text with this filth")
    parser.add_option("-c", "--client", action="store", type="int", dest="client",
		      help="0 - o2sms (default), 1 - meteorsms, 2 - vodasms",
		      default=0)

    (optparse.options, optparse.args) = parser.parse_args()

    global CLIENTCHOICE
    CLIENTCHOICE = optparse.options.client

    if optparse.options.o2num and optparse.options.lastfm:
	song = GetTrack(optparse.options.lastfm)
	number = GetNumber(optparse.options.o2num)
	SendMessage(number, song, optparse.options.o2num)
    elif not optparse.options.o2num and not optparse.options.lastfm:
	sys.stderr.write("No o2sms target specified!\n")
	sys.stderr.write("No last.fm username specified!\n")
	sys.exit(-1)
    elif not optparse.options.o2num:
	sys.stderr.write("No o2sms target specified!\n")
	sys.exit(-1)
    elif not optparse.options.lastfm:
	sys.stderr.write("No last.fm username specified!\n")
	sys.exit(-1)
	

if __name__ == "__main__":
    main()