#!/bin/bash

PLAYLIST='/home/Fedora11'

function mk_playlist
{

  AUDIOPATH='/home/Fedora11/MP3'

  touch /home/Fedora11/playlist
  touch /home/Fedora11/temporaryplaylist

  find $AUDIOPATH -print -type f > /home/Fedora11/temporaryplaylist
  grep -i 'mp3$' /home/Fedora11/temporaryplaylist > /home/Fedora11/playlist

  rm /home/Fedora11/temporaryplaylist

  echo Total files: `wc -l /home/Fedora11/playlist`
}

# Echo some help
if [ "$1" == "-h" -o "$1" == "--help" ]; then
  echo "Usage: doze [OPTION]"
  echo
  echo "<minutes> Doze for <minutes> and start playing"
  echo "-c | --create Create playlist w/o playing it"
  echo "-h | --help Show this help"
  echo
  echo "W/o option playing starts immediately"
  echo
  exit 0
fi

# Just create playlist w/o playing it
if [ "$1" == "-c" -o "$1" == "--create" ]; then
  mk_playlist
  exit 0
fi

# Start playing immediately
if [ "$#" -ne 1 ]; then
  if [ ! -f "$PLAYLIST" ]; then
    mk_playlist
    mplayer -shuffle -playlist $PLAYLIST
  else
    mplayer -shuffle -playlist $PLAYLIST
  fi
else
  # Or after a while
  if [ ! -f "$PLAYLIST" ]; then
    mk_playlist
    TIME_IN_MINS=$(($1 * 60))
    sleep $TIME_IN_MINS
    mplayer -shuffle -playlist $PLAYLIST
  else
    TIME_IN_MINS=$(($1 * 60))
    sleep $TIME_IN_MINS
    mplayer -shuffle -playlist $PLAYLIST
  fi
fi