#!/bin/bash -e
#
# playstream -- smart handler for m3u/pls files for mpd
# version 2006.03.15.0005
#
# (c) 2006 martin f. krafft <playstream@pobox.madduck.net>
# Released under the terms of the artistic licence.
#

### begin host configuration
# do whatever you want here. note that my default below automatically
# decides where to play the music based on the ARP cache. it ignores
# existing MPD_HOST values. i am sure you know what to do if you don't
# like that.
#
export MPD_HOST=localhost

if ip neigh | grep -q '192\.168\.14\.1 .\+ 08:00:46:b1:2d:ee REACHABLE'; then
  MPD_HOST="XXXXXXXXX@yy.cccccc.net"
fi
### end host configuration

declare -a lists
unset verbose

LONGOPTS=replace,append,queue,verbose
SHORTOPTS=raqv
ME=${0##*/}

for opt in $(getopt -u -n $ME -l $LONGOPTS -o $SHORTOPTS -- $@); do
  case $opt in
    -r) # replace list immediately
      mpc clear;;
    -a) # append to list
      :;;
    -q) # append, but queue next
      mpc crop;;
    -v) # verbose
      verbose=1;;
    --) :;;
    *.m3u|*.pls)
      if [ -r $opt ]; then
        lists=(${lists[@]} $opt)
      else
        echo "$ME: unreadable file -- $opt" >&2
        exit 2
      fi;;
    *)
      echo "$ME: invalid argument -- $opt" >&2
      exit 1;;
  esac
done

if [ -z "${lists[@]}" ]; then
  [ -n "$verbose" ] && echo $ME: no input files. >&2
  exit 0
fi

if [ -n "$verbose" ]; then
  echo "I: playing on host ${MPD_HOST#*@}:"
  for i in ${lists[@]}; do
    echo "I:   $i"
  done
fi

# pls files have annoying File[[:digit:]]* prefixes
# m3u files are fine, mpc ignores commented lines
# thus, the following takes care of all:
sed -e 's/^File[[:digit:]]*=//' ${lists[@]} | mpc add >/dev/null
mpc play # doesn't do anything if already playing

exit 0