#!/bin/bash
prog_name=XpowerRack
help_file_name=xpowerrack.hlp
about()
{
	echo "  This is the $prog_name an example script for the `xstep-shell -v` package ">$HOME/$help_file_name
	echo "  based on the XSTEP 3.5.1 - Toolkit for X Window System - ">>$HOME/$help_file_name
	echo "  Copyright (C) 1996-2000 by Marcelo Samsoniuk">>$HOME/$help_file_name
	echo " ">>$HOME/$help_file_name
	echo "  This program is free software; you can redistribute it and/or modify">>$HOME/$help_file_name
	echo "  it under the terms of the GNU General Public License as published by">>$HOME/$help_file_name
	echo "  the Free Software Foundation; either version 2 of the License, or">>$HOME/$help_file_name
	echo "  (at your option) any later version.">>$HOME/$help_file_name
	echo "  ">>$HOME/$help_file_name
	echo "  This program is distributed in the hope that it will be useful,">>$HOME/$help_file_name
	echo "  but WITHOUT ANY WARRANTY; without even the implied warranty of">>$HOME/$help_file_name
	echo "  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the">>$HOME/$help_file_name
	echo "  GNU General Public License for more details.">>$HOME/$help_file_name
	echo "  ">>$HOME/$help_file_name
	echo "  You should have received a copy of the GNU General Public License">>$HOME/$help_file_name
	echo "  along with this program; if not, write to the Free Software">>$HOME/$help_file_name
	echo "  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA">>$HOME/$help_file_name
	echo " ">>$HOME/$help_file_name
	echo "  `xstep-shell -v` (C) 2001-2003 by Tito Ragusa email: tito-wolit@tiscalinet.it">>$HOME/$help_file_name
	echo "  ">>$HOME/$help_file_name
	xstep-shell -t $prog_name -vf $HOME/$help_file_name
	rm -f $HOME/$help_file_name
}
x_click_exit_click()
{
# this to kill the process if x or exit is clicked
set -- $out 
 if [ "$1" = "Exit" ] 2>/dev/null ; then  
	if [ $child_pid -gt 0 ] 2>/dev/null ;then
		kill $child_pid
	fi
	close_it=0
	kill  $$ 
fi
if [ $1 =  ] 2>/dev/null ; then  
	if [ $child_pid -gt 0 ] 2>/dev/null ;then
		kill $child_pid
	fi
	close_it=0
	kill  $$ 
fi
}

clean_out()
{
out=
}

close_win()
{
# close the last window, but let script run
check=`ps | grep -c xstep-shell`
pid=`ps | grep xstep-shell| cut -b 1-6`
# checking if window was already closed by clicking x or exit
if [ $check = 1 ] ; then 
	kill $pid
else
kill $$
fi
}


play_mp3()
{
text1=` mp3info "$song" | grep Title | cut -b 10-40 `
text2=` mp3info "$song" | grep Artist | cut -b 10-40 `
mpg123  "$song"	&
child_pid=` ps | grep mpg123 | cut -b 1-6 `
clean_out
if [ "$text1" != "" ] ; then
	out=`xstep-shell -q Artist Title -qv "$text2" "$text1" -l Playing... -bf -b Exit Stop -sy 180 -t XpowerRack `
else
	name=` basename "$song" `
	out=`xstep-shell -t XpowerRack -l "Playing $name " -bf  -b Exit Stop `
fi
set -- $out
out=$1
x_click_exit_click 
if [ $1 = Stop ]; then
	if [ $child_pid -gt 0 ] 2>/dev/null ;then
		kill $child_pid
	fi	
fi
}

# main 
close_it=1 
while [ $close_it = 1 ]
do
	out=`xstep-shell -t XpowerRack -l XpowerRack -bf -b Exit Scan Select PlayList About`
	x_click_exit_click
	case $out in 
	Scan)
		clean_out
		if [ -f $HOME/mp3list ] ; then
			out=`xstep-shell -t XpowerRack -l "Overwrite existing Playlist?" -bf -b Yes No`
			x_click_exit_click
		else
			out=Yes
		fi
		if [ $out = Yes ] ;then
			clean_out
			out=`xstep-shell -t XpowerRack -l "Scanning user's home dir for mp3's" -bf -sx 420` &
			find $HOME -name '*.mp3' > $HOME/mp3list
			sleep 2
			close_win
			clean_out
			out=`xstep-shell -t XpowerRack -vf $HOME/mp3list -pl `
			song="$out"
			x_click_exit_click
		fi
		;;
	Select)	
		clean_out
		out=`xstep-shell -t XpowerRack -fs `
		song="$out"
		check=`echo $out | grep -c .mp3`
		if [ $check = 1 ] ; then
			play_mp3
		else
			clean_out
			xstep-shell -t XpowerRack -l "No mp3 file selected" -bf -b Ok
		fi
	;;
	PlayList)
		clean_out
		out=`xstep-shell -t XpowerRack -l "XpowerRack Playlist" -bf -b Select "Play All"`
		case $out in
		Select)
			clean_out
			out=`xstep-shell -t XpowerRack -vf $HOME/mp3list -pl -b Cancel `
			echo $out
			set -- $out
			if [ $1 = Ok ] ; then
				shift 1
				echo $out
				song=$*
				check=`echo $song | grep -c .mp3`
				if [ $check = 1 ] ; then
						play_mp3
				fi
			fi
		;;
		"Play All")
			clean_out
			mpg123 -@ $HOME/mp3list &
			echo
			child_pid=` ps | grep mpg123 | cut -b 1-6 `
			out=`xstep-shell -t XpowerRack -vf $HOME/mp3list  -b Next`
			while [ $out != "Ok" ] 2>/dev/null
			do
				if [ $out = Next  ] ; then
					kill -2 $child_pid
					out=`xstep-shell -t XpowerRack -vf $HOME/mp3list  -b Next`
				fi
			done
			kill -9 $child_pid
			child_pid=0
		;;
		*)
		close_it=0
		;;
		esac
	;;
	About)
		about
	;;
	*)
	;;
	esac 
done