lullpy - pythonista script for bedtime

lulla.py

import os, sys, time
from objc_util import *
import webbrowser

### Tested with:
### Pythonista 3.2
### iOS 11.3

### The script performs various functions in order to prepare the device for bedtime:
### - lowers volume
### - opens Sleep Cycle app
### - waits a few seconds for you to start the alarm 
### - begins playing a song of choice stored in the Music app (Sleep cycle pauses any music playing upon the alarm being started) 
### - sets screen brightness all the way down

### credit to github.com/lukaskollmer for virtually all of the Objective-C here. The only Pythonista use of Music-related ObjC I managed to find.


class Song(object):
	def __init__(self, title, albumTitle, playCount, persistentID, objcMediaItem):
		self.title = title
		self.albumTitle = albumTitle
		self.playCount = playCount
		self.persistentID = persistentID
		self.objcMediaItem = objcMediaItem
	
	
	def __str__(self):
		return '{0} | {1} ({2})'.format(self.playCount, self.title, self.albumTitle)
		
		

def main():
	NSBundle.bundleWithPath_('/System/Library/Frameworks/MediaPlayer.framework').load()
	
	set_volume(.2) # value between 0.0 and 1.0
	open_sleep_cycle_app() # change URL scheme to your liking if you have another Sleep app
	time.sleep(5) # waits for user to start alarm before starting music
	play_music_track("Weightless") # song title
	set_bright(0)  # value between 0.0 and 1.0

	os.abort()
	sys.exit()
	
	
def set_bright(value):
	UIScreen = ObjCClass('UIScreen')
	screen = UIScreen.mainScreen()
	screen.setBrightness_(value)


def set_volume(value):
	MPVolumeView = ObjCClass('MPVolumeView')
	volume_view = MPVolumeView.new().autorelease()
	for subview in volume_view.subviews():
		if subview.isKindOfClass_(ObjCClass('UISlider')):
			subview.value = value
			break
		

def play_music_track(track_title):
	MPMediaQuery = ObjCClass('MPMediaQuery')
  MPMediaItemCollection = ObjCClass('MPMediaItemCollection')
  MPMusicPlayerController = ObjCClass('MPMusicPlayerController')
	
  songsQuery = MPMediaQuery.songsQuery()
	player = MPMusicPlayerController.systemMusicPlayer()
	
	
	songs = []
	
	for n, collections in enumerate(songsQuery.valueForKey_('collections')):
		for i, mediaItem in enumerate(collections.valueForKey_('items')):
			title = mediaItem.valueForKey_('title')
			album = mediaItem.valueForKey_('albumTitle')
			playCount = int(str(mediaItem.valueForKey_('playCount')))
			persistentID = mediaItem.valueForKey('persistentID')
			
			song = Song(title, album, playCount, persistentID, mediaItem)
			if track_title in str(title):
				songs.append(song)
	
	song_mediaItem = MPMediaItemCollection.collectionWithItems_(ns([songs[0].objcMediaItem]))
	player.setQueueWithItemCollection_(song_mediaItem)
	player.play()

def open_sleep_cycle_app():
	webbrowser.open('fb162575247235:')
	
if __name__ == '__main__':
	main()