# -*- 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
#  Packge       : players
#  Description  : Amarok Player
#  ============================================================================

import os
import commands
import random
from playlist import Playlist
import pydcop

# command line
def shell(command):
    return commands.getoutput(command)

# starts the amarok player application
def start():
    os.popen('amarok')

# close the amarok player application
def shutdown():
    shell('dcop amarok player stop')
    pid = shell('pidof amarokapp')
    shell('kill -9 %s' % pid)

# verifies if the amarok is running 
def isRunning():
    pid = shell('pidof amarokapp')
    if pid > 0:
        return True
    else:
        return False

class AmarokPlayer():

    """ Amarok
    Define all states and functions of amarok player.
    This class will build to support PCRemote Player,
    receiving messages from any devices with a bluetooth 
    connection.
    """
	
    # some importants variables 
    def __init__(self):
       	self.amarok = pydcop.anyAppCalled("amarok")
        self.playlist = Playlist(self.amarok.playlist.saveCurrentPlaylist())
        self.isPlaying()

    # refresh playlist, accessing the Playlist class instance
    def refresh_playlist(self):
        self.playlist = Playlist(self.amarok.playlist.saveCurrentPlaylist())
	self.isPlaying()

    # get all songs of playlist
    def song_list(self):
        self.playlist.show()

    # show current song, acessing the Playlist class instance
    def current_song(self):
    	self.isPlaying()

    # verifies if this amarok app is running
    def isRunning(self):
	aux = pydcop.anyAppCalled("amarok")
        if aux:
	    return aux
	else:
	    return None

    # verifies if this amarok app is playing and update the 
    # Playlist with current song
    def isPlaying(self):
       	if not self.amarok.player.isPlaying() == 'true':
	    self.playlist.update(self.amarok.playlist.getActiveIndex() + 1,\
		                 self.amarok.player.title(),               \
			         self.amarok.player.artist(),              \
			         self.amarok.player.path(),                \
			         "." + self.amarok.player.type(),          \
				)
            return True
	else:
	    return False    	

    # get the players name
    def getName(self):
	return "Amarok"

    # send audio files to the N810 device
    def audio_file_properties(self, index=None):
 	audiofile = (self.playlist.song_filename(index),\
	             self.playlist.song_size(index))
	return audiofile

    # next button and sets current song
    def next(self):
	self.amarok.player.next()
	self.playlist.update(self.amarok.playlist.getActiveIndex() + 1,\
	                     self.amarok.player.title(),               \
	           	     self.amarok.player.artist(),              \
			     self.amarok.player.path(),                \
			     "." + self.amarok.player.type(),          \
			     )
	
    # prev button and sets current song
    def prev(self):
	self.amarok.player.prev()        	
	self.playlist.update(self.amarok.playlist.getActiveIndex() + 1,\
	                     self.amarok.player.title(),               \
	 		     self.amarok.player.artist(),              \
			     self.amarok.player.path(),                \
			     "." + self.amarok.player.type(),          \
			     )
	
    # play button and sets current song
    def play(self):
	self.amarok.player.play()
	self.playlist.update(self.amarok.playlist.getActiveIndex() + 1,\
		             self.amarok.player.title(),               \
			     self.amarok.player.artist(),              \
		             self.amarok.player.path(),                \
			     "." + self.amarok.player.type(),          \
			     )
	
    # play button with index song and sets current song
    def play_track(self, index):
	self.amarok.playlist.playByIndex(index-1)	
	self.playlist.update(index,                          \
		             self.amarok.player.title(),     \
			     self.amarok.player.artist(),    \
		             self.amarok.player.path(),      \
			     "." + self.amarok.player.type(),\
			     )

    # random play songs
    def play_random(self):
	index = random.randint(0, self.playlist.length() - 1)
	self.amarok.playlist.playByIndex(index)
	self.playlist.update(index+1,                        \
		             self.amarok.player.title(),     \
			     self.amarok.player.artist(),    \
			     self.amarok.player.path(),      \
			     "." + self.amarok.player.type(),\
		             )
		
    # pause button
    def pause(self):
	self.amarok.player.pause()

    # mute button
    def mute(self):
	self.amarok.player.mute()

    # stop button
    def stop(self):
	self.amarok.player.stop()

    # get the current volume value
    def get_volume(self):
	return self.amarok.player.getVolume()

    # set up volume
    def volume_up(self, increase=1):
	if (self.get_volume() + increase) <= 100:
	    up = self.get_volume() + increase
	    self.amarok.player.setVolume(up)
	else:
	    print "erro!"

    # set down volume
    def volume_down(self, decrement=1):
        if (self.get_volume() - decrement) >= 0:
	    down = self.get_volume() - decrement
	    self.amarok.player.setVolume(down)
	else:
	    print "erro!"
	
    # set seek value 
    def seek(self, value):
       	self.amarok.player.seek(value)