# PiQRAP Copyright (C) 2021 Andy Jones - teardrop@zen.co.uk

#!/usr/bin/env python3

from pathlib import Path

from time import sleep

import time

import logging, logging.handlers

import signal, sys, os, getopt

import os.path

import curses

from modules.config import Configuration

from modules.mediaPlayerSingle import Player

from modules.media import MediaFile, PlayList

from modules.musicFolder import MusicFolder

from modules.events import Events

from modules.camera import Camera

# Global variables

requestSwitchMediaFolder = False

requestVolumeUp = False

requestVolumeDown = False

requestPlayOrPause = False

requestPlayNext = False

requestPlayPrevious = False

requestShuffle = False

# Signal handler - Cleans up in case of control C

def signal_handler(sig, frame):

quit = True

def cleanUp():

sys.exit(0)

def qrDataReceived(qrData):

requestPlayOrPause = True

# Load root config/s

# First load from the root directory of the program

config = Configuration().loadConfig(os.path.join(os.getcwd(), "piqrap.yml"))

# Now load from /boot so settings can be easily overridden

config.mergeConfig("/boot/piqrap.yml")

# Get config values falling back to defaults

outputDevice = config.outputDevice or "alsa:hw:0,0"

debug = config.debug

loglevel = config.logLevel or "INFO"

shuffle = config.shuffle

# Setup logging

logger = logging.getLogger('__name__')

# If debugging then use the log file handler. - Make sure partition is r/w when doing this

if debug:

logger.setLevel(getattr(logging, loglevel.upper()))

logFormatter = logging.Formatter("%(asctime)s [%(threadName)-12.12s] [%(levelname)-5.5s] %(message)s -> %(filename)s:%(funcName)s:%(lineno)s")

fileHandler = logging.handlers.RotatingFileHandler("piqrap.log", maxBytes=(1048576 * 1), backupCount=2)

fileHandler.setFormatter(logFormatter)

logger.addHandler(fileHandler)

# Not debugging so direct all logging to NullHandler as in theory partition won't be writtable.

else:

logger.addHandler(logging.NullHandler())

logger.info("PiQRAP starting....")

logger.info("PiQRAP Copyright (C) 2021 Andy Jones - teardrop@zen.co.uk")

# Catch CTRL C

signal.signal(signal.SIGINT, signal_handler)

stdscr = curses.initscr()

curses.noecho()

curses.cbreak()

stdscr.nodelay(1)

# Create the player

logger.debug("Creating player")

player = Player(outputDevice)

# Get the music folder object

musicFolder = MusicFolder(player)

# Get a list of all folders in the /pi/home/Music folder and set player to the first

playList = musicFolder.getPlayList(0)

if shuffle:

playList.shuffle()

indexMediaFolder = 0

player.switchMedia(playList)

player.togglePlayPause()

# Set up camera object

camera = Camera(player, logger)

# Subcribe to state received event so that when the Arduino updates us with state we update controls

camera.events.onQRDataReceived += qrDataReceived

camera.start()

player.playFile(MediaFile(os.path.join(os.getcwd(), 'assets', 'audio', 'player-ready.ogg')))

quit = False

while quit == False:

# Work out position and duration and loop to start if at end

pos = player.position()

dur = player.duration()

if pos > (dur - 1):

player.playNext()

# Process any key presses

key = stdscr.getch()

if key != -1:

logger.debug("Keypress - Key value = " + str(key))

# Esc or Q

if key == 27 or key == 113:

logger.debug("Keypress - Quit")

quit = True

# S

elif key == 115:

logger.debug("Keypress - Shuffle playlist")

requestShuffle = True

# B or P

elif key == 98 or key == 112:

logger.debug("Keypress - Play previous")

requestPlayPrevious = True

# N or Space

elif key == 110 or key == 32:

logger.debug("Keypress - Play next")

requestPlayNext = True

# F

elif key == 102:

logger.debug("Keypress - Switch mediaFolder")

requestSwitchMediaFolder = True

# Minus

elif key == 45:

logger.debug("Keypress - Volume down")

requestVolumeDown = True

# Equals

elif key == 61:

logger.debug("Keypress - Volume up")

requestVolumeUp = True

# H

elif key == 104:

logger.debug("Keypress - Play/Pause")

requestPlayOrPause = True

# Process requests from key presses or QR Event

if requestSwitchMediaFolder:

logger.info("Switching playlist to " + musicFolder.getPlayListRoot(indexMediaFolder))

# Get all media files for the choosen folder

playList = musicFolder.getPlayList(indexMediaFolder)

if shuffle:

playList.shuffle()

player.switchMedia(playList)

requestSwitchMediaFolder = False

if requestShuffle:

logger.info("Shuffling playlist")

# Get all media files for the choosen folder

playList = musicFolder.getPlayList(indexMediaFolder)

playList.shuffle()

player.switchMedia(playList)

requestShuffle = False

if requestPlayPrevious:

logger.info("Switching mediaFile to previous")

player.playPrevious()

requestPlayPrevious = False

if requestPlayNext:

logger.info("Switching mediaFile to next")

player.playNext()

requestPlayNext = False

if requestVolumeUp:

logger.debug("Increasing volume")

player.volume(0.1)

requestVolumeUp = False

if requestVolumeDown:

logger.debug("Decreasing volume")

player.volume(-0.1)

requestVolumeDown = False

if requestPlayOrPause:

logger.debug("Play/Pause")

player.togglePlayPause()

requestPlayOrPause = False

sleep(0.1)

cleanUp()