Tünz2.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

#Tünz
#Adam Knuckey February 2015

#TODO
#Add multithreading to support queueing and checking when song ends. needed for playlists#categorize songs (eg list songs rock would show all songs that you've given the attribute 'rock' to)
#add artists to songs (eg list songs by (artist) will show all the songs that you've said are by that artist)
#info (song) will show complete info on characteristics you've given it (ie title, artist, attributes)
#auto complete (eg type in just the first word of the title and if there are no other ones with that starting word it will know to play that song)
#going to need to make a text file to store the information given on the songs so it can be loaded in later instances of the program
#for downloading split at commas and download each of the ones in the list to streamline downloading
#relevant to one above - clean inputs so there are no commas or other special characters
#figure out how to download to a specific directory with youtube-dl
#when saving playlist or song information to a file, save it to a temp file and then rename the temp file while deleting the old one just so if it crashes part way through, it still there in the original. Add a character at the end of the file like a & or $ to show that the operation completed so when reading it doesnt read from an incomplete file
#pull song info from online dataabases, such as release year and lyrics. lyrics would be cool to have only a couple of words away
#when renaming a song make sure there isn't a song by that name left
#pull song length from the youtube video
#add command "song info (song)" or something like it that prints information on the song
#add feature of queue that when no argument is given with it it prints out songs that are queued
#add command to deque a song ("use 'dq' to dequeue, since 'q' will be to queue")
#change storage of song info to SQLite3 database
#add command to show what is on the queue. something like list queue
#show the name of the youtube video when the download begins with the link

print "Starting Tünz..."
import os
import sys
import datetime
import urllib2
from threading import Thread


from Library import *
from MusicPlayer import *
from Playlist import *
from Song import *
from Download import *


class Tunz:

	def __init__(self):
		self.dir = os.getcwd()
		self.library = Library(self.dir)
		#self.musicPlayer = threading.Thread(target=MusicPlayer.__init__, args = [self.library])
		self.musicPlayer = MusicPlayer(self.library)
		self.musicPlayer.start()
		self.commandList = "download (song) - downloads a song to your library \nlist (songs/playlists) [start] - Lists your songs or playlists, optionally starting with certain character(s) \ncreate playlist (name) - creates a playlist with given name \nadd (song) :: (playlist) - adds given song in your library to given playlist \nshuffle [playlist] - shuffles your main library or a specific playlist \nplay (song/playlist) - plays the current music if no argument give, or plays a song or a playlist \ndelete (song/playlist) - removes a song or a playlist \npause - pauses the music \nrewind - rewinds the music \nskip - skips to the next song\ninfo - gives info about Tünz \nexit - exits Tünz"


	#A method to change directories to the main Tünz directory. It will first check if it is in that directory, and if it's not it cds into it
	def mainDir(self):
		print ""+os.getcwd()
		print self.dir
		if os.cwdir() == self.dir:
			print "in directory"
		else:
			print "changing"
			os.chdir('..')

	#A method to change directories to the Tünz Library directory. It will first check if it is in that directory, and if it's not it cds into it
	def libDir(self):
		print ""+os.getcwd()
		print self.dir
		if os.getcwd() != self.dir:
			print "in directory"
		else:
			print "changing"
			os.chdir('Tünz Library')

	#loads all the songs in your library into an array to be used for playing the songs and displaying them
	def updateLibrary(self):
		self.library = []
		for song in next(os.walk('.'))[1]:
			self.library.append(song)
		self.library.sort()

	def queueSongs(self):
		i = self.library.index(self.currentSong)
		for song in self.library[i:]:
			mixer.music.queue(song+"/"+song+".mp3")

	def queueSong(self,song):
		mixer.music.queue(song+"/"+song+".mp3")

	#download a song based by the name given in the command
	def download(self,command):
		#NOTE check input
		currentDL = Download(command,self.library) #passes reference to library so it can check if things are already in the library and stop the process
		if currentDL.downloadedSuccessfully():
			self.library.addSong(currentDL.getSong())
			print "[!] DONE!"
		else:
			print "[!] ERROR WHILE DOWNLOADING"

	def goto(self,command):
		if len(command) == 2:
			if self.playing:
				mixer.music.play(0,(int(command[1])))
			else:
				print "[x] Nothing playing!"
		else:
			print "[x] format of 'goto' is goto (time)"

	def play(self,command):
		self.musicPlayer.play(command)

	def add(self,command):
		if self.manualQueue:
			if len(command) == 1:
				print ("[x] Syntax for add - 'add (song)")
			else:
				command.remove(command[0])
				command = "_".join(command)
				if command in self.library:
					#try:
					#mixer.music.load(command+"/"+command+".mp3")
					self.queueSong(command)
					print "[+] Song queued!"
					#except:
				else:
					print "[x] Song isn't in your library"
		else:
			print "[x] manual queue is not on. Use 'queue manual' to switch"

	def pause(self):
		self.musicPlayer.pause()

	def stop(self):
		self.musicPlayer.stop()

	def list(self,command):
		if len(command) == 2:
			if command[1] == "songs":
				self.library.listSongs()
			elif command[1] == "playlists":
				self.library.listPlaylists()
			else:
				print "[x] format for 'list' - list (song/playlist) [start/contains]"
		elif len(command) == 3 and len(command[2]) == 1:
			if command[1] == "songs":
				self.library.listSongs(command[2])
			elif command[1] == "playlists":
				self.library.listPlaylists(command[2])
			else:
				print "[x] format for 'list' - list (song/playlist) [start/contains]"
		elif len(command) >= 3:
			if command[1] == "songs":
				self.library.listSongs(" ".join(command[2:len(command)]))
			elif command[1] == "playlists":
				self.library.listPlaylists(" ".join(command[2:len(command)]))
			else:
				print "[x] format for 'list' - list (song/playlist) [start/contains]"
		else:
			print "[x] format for 'list' - list (song/playlist) [start/contains]"


	def start(self):
		while True:
			command = raw_input("[♫] ").split(" ")

			if command[0] == "help": #HELP -----------
				print self.commandList

			elif command[0] == "download": #DOWNLOAD -----------
				self.download(command)

			elif command[0] == "list": #LIST ----------
				self.list(command)

			elif command[0] == "add":
				self.add(command)

			elif command[0] == "goto":
				self.goto(command)

			elif command[0] == "play":
				self.play(command)

			elif command[0] == "pause":
				self.pause()

			elif command[0] == "stop":
				self.stop()

			elif command[0] == "create":
				if len(command) == 2:
					if command[1] == "create playlist":
						print "create it yourself"

			elif command[0] == "queue":
				if len(command) == 2:
					if command[1] == "manual":
						self.stop()
						self.manualQueue = True
						print "[+] Now on manual queue"
					elif command[0] == "auto":
						self.stop()
						self.manualQueue = False
						print "[+] Now on auto queue"
					else:
						print "[x] format for queue - 'queue (manual/auto)'"
				else:
					print "[x] format for queue - 'queue (manual/auto)'"

			elif command[0] == "current":
				if len(command) == 1:
					if self.currentSong != "No Song Selected":
						print "[+] Current Song is "+self.currentSong.replace("_"," ")+" ("+str(datetime.timedelta(seconds=mixer.music.get_pos()/1000))+")"
					else:
						print "[x]"+self.currentSong
				elif len(command) == 2 and command[1] == "playlist":
					if self.currentPlaylist != "No Playlist Selected":
						print "[+] Current playlist is "+self.currentPlaylist
					else:
						print "[x] No Playlist Selected"

			elif command[0] == "exit" or command[0] == "quit": #EXIT -----------
				print "Stopping music player thread..."
				#may need to have a method call to musicPlayer here
				self.musicPlayer.join()
				print "Exiting..."
				sys.exit(0)    

if __name__ == "__main__":
	os.system("\nmkdir \"Tünz Library\"")
	os.chdir("Tünz Library")
	print "path is "+os.getcwd()+"\n" 
	print "---------------Tünz--------------"
	print "    Command Line Music Player    "
	print "         By Adam Knuckey         "
	print "---------------------------------"
	#open("Tünz_Playlists.txt",'w').close()
	print "\n Type 'help' for a list of commands"
	tunz = Tunz()
	tunz.start()