# -*- coding: utf-8 -*-

#  ****************************************************************************
#  Copyright (c) 2008 INdT/Fucapi.
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU Lesser General Public License for more details.
#
#  You should have received a copy of the GNU Lesser General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
#  ============================================================================
#  Project Name : PC Remote
#  Author       : Jonatas Isvi 
#  Email        : jonatas.nona@gmail.com
#  Reviewer     :
#  Email        :
#  Version      : 1.0
#  Package      : players
#  Description  : Playlist
#  ============================================================================

import plistparser
import pydcop

class Playlist():

    """ Playlist
    make the interpreter and manipulation
    of the player playlist, creates a composite
    with any player class. 
    """

    # some importants variables
    # analyze if file is a playlist
    def __init__(self, file):
       	if self.isPlaylist(file):
	    self.file = file
	    self.songs = self.load()
	    self.currentSong = 0
	    self.fix()
	else:
	    raise("Argument is not a playlist file")

    # analyzes the file
    def isPlaylist(self, file):
	if not file:
	    return False
	else:
	    return True

    # make a list of dicts songs
    def load(self):
	self.songs = plistparser._request(self.file)	
	return self.songs

    # get the length of the current playlist
    def length(self):
	return len(self.songs)

    # update the current song in songs list and return a song dict
    def update(self, track, title, artist, path, ext):
       	self.currentSong = track
	if self.songs[self.currentSong - 1]['title'] == 'Unknown Title':
	    self.songs[self.currentSong - 1]['title'] = title
	if self.songs[self.currentSong - 1]['artist'] == 'Unknown Artist':
	    self.songs[self.currentSong - 1]['artist'] = artist
	self.songs[self.currentSong - 1]['path'] = path
	self.songs[self.currentSong - 1]['extension'] = ext
	print self.songs[self.currentSong - 1]


    # show the current song
    def show_playing_now(self):
       	return ('TITLE: %s' % self.songs[self.currentSong - 1]['title'],  \
		'ARTIST: %s' % self.songs[self.currentSong - 1]['artist'],\
		'TRACK: %s' % self.songs[self.currentSong - 1]['track']
	        )

    # get the current song filename if index is None
    def song_filename(self, index=None):
	if index == None:
	    return self.songs[self.currentSong-1]['title'] +" - "+\
		   self.songs[self.currentSong-1]['artist'] +     \
	           self.songs[self.currentSong-1]['extension']

	else:
	    return self.songs[index-1]['title'] +" - "+\
	           self.songs[index-1]['artist'] +     \
	           self.songs[index-1]['extension']
	
    # get thr current song filesize if index is None
    def song_size(self, index=None):
	if index == None:
       	    return int(self.songs[self.currentSong-1]['filesize'])
	else:
	    return int(self.songs[index-1]['filesize'])

    # show all songs of the playlist
    def show(self):
	for i in range(self.length()):
	    print self.songs[i]['track'], " - ", \
	          self.songs[i]['title'], " | ", \
	          self.songs[i]['artist'],       \
		  "\n"

    # fix some problems of musics tags
    def fix(self):
	for i in range(self.length()):
	    if self.songs[i]['title'] == None:
	       self.songs[i]['title'] = 'Unknown Title'
	    elif self.songs[i]['artist'] == None:
	       	self.songs[i]['artist'] = 'Unknown Artist'
		

    # get the porperties of any song of ther playlist	
    def song_properties(self, index=None, track=False, title=False,\
                        artist=False, ext=False, filesize=False, \
			duration=False, path=False):
	props = {}
	if index == None:
	    if track:
	    	props['track'] = self.songs[self.currentSong-1]['track']
	    if title:
	        props['title'] = self.songs[self.currentSong-1]['title']
	    if artist:
	       	props['artist'] = self.songs[self.currentSong-1]['artist']
	    if ext:
		props['ext'] = self.songs[self.currentSong-1]['extension']
	    if filesize:
		props['filesize'] = self.songs[self.currentSong-1]['filesize']
	    if duration:
		props['duration'] = self.songs[self.currentSong-1]['duration']
	    if path:
		props['path'] = self.songs[self.currentSong-1]['path']
			
	    return props
	else:
	    if track:
	    	props['track'] = self.songs[index-1]['track']
	    if title:
		props['title'] = self.songs[index-1]['title']
	    if artist:
		props['artist'] = self.songs[index-1]['artist']
	    if ext:
		props['ext'] = self.songs[index-1]['extension']
	    if filesize:
		props['filesize'] = self.songs[index-1]['filesize']
	    if duration:
		props['duration'] = self.songs[index-1]['duration']
	    if path:
		props['path'] = self.songs[index-1]['path']

            return props