#!/bin/bash

#	
#
#	simple script to make amarok to work with some of my media buttons on the mouse.
#	this script i wrote to work with xbindkeys 
#	
#	Needed stuff:
#	xbindkeys 
#	evdev module compiled for Xorg "already bult in kubuntu's xorg server"
#	kernel usbstuff- "evdev" module
#
#	cat /proc/bus/input/devices
#	looks something like:
#
#	I: Bus=0003 Vendor=046d Product=c50e Version=0111
#	N: Name="Logitech USB RECEIVER"
#	P: Phys=usb-0000:00:0b.0-4/input0
#	S: Sysfs=/class/input/input4
#	U: Uniq=
#	H: Handlers=mouse0 event1 ts0
#	B: EV=20007
#	B: KEY=ffff0000 0 0 0 0 0 0 0 0
#	B: REL=143
#	B: LED=ff00
#
#	Find your mouse event. usaly event0 or event1
#	Now edit /etc/X11/xorg.conf and replace 
#
#	Driver "mouse" 
#		with  
#	Driver "evdev"
#		and
#	Option "Device" "/dev/psaux" #mice or whatever whats written there..
#		with
#	Option "Device" "/dev/input/event1"
#
#	Now use "xev" to find the button numbers.
#	then make a new file called ".xbindkeysrc" in your home dir, 
#	
#	the file may look something like.
#	
#	############# .XBINDKEYSRC #############	
#
#	"/usr/bin/mediamouse start"
#	b:17 + Release
#
#	"/usr/bin/mediamouse stop"
#	b:10 + Release
#
#	"/usr/bin/mediamouse next"
#	b:15 + Release
#
#	"/usr/bin/mediamouse prev"
#	b:16 + Release
#
#	"/usr/bin/mediamouse up"
#	b:13 + Release
#
#	"/usr/bin/mediamouse down"
#	b:14 + Release
#	
#	#########################################
#
#	copy the script to /usr/bin or change the path in .xbindkeysrc to where the script it located. 
#	also run "sudo chmod 755 mediamouse"
#	this script is GPL and made by nuxil.
#

ARG=$1
function start() 
{
	
	## play/pause button toggle function. 
	## if no amarok found running. start it up and play song from playlist.
	if [[ ! `pgrep amarokapp` ]] 
	
	## start it up and sleep 3 secs. give it some time to load up
	then exec amarokapp & sleep 3
	     exec dcop amarok player play 

	## if amarok is running.then we need a toogle function to toggle play pause..
	else 
		## if a song is playing then pause.
		if [[ `dcop amarok player status` -eq "2" ]] 
			then exec dcop amarok player pause
			else exec dcop amarok player play
		fi
	fi
}

function stop()
{
	if [[ `pgrep amarokapp` ]] 
	then exec dcop amarok player stop
	fi
}

function next()
{
	if [[ `pgrep amarokapp` ]] 
	then exec dcop amarok player next
	fi
}

function prev()
{
	if [[ `pgrep amarokapp` ]] 
	then exec dcop amarok player prev
	fi
}

function up()
{
	if [[ `pgrep amarokapp` ]] 
	then exec dcop amarok player volumeUp
	fi
}

function down()
{
	if [[ `pgrep amarokapp` ]] 
	then exec dcop amarok player volumeDown
	fi
}

## forward 5 sec's
function pfwd()
{
	if [[ `pgrep amarokapp` ]] 
	then CT=`dcop amarok player currentTime`

	     # current minutte(s) time 
	     CTM=`echo ${CT}  | tr ":" " " | awk '{print $1}'`
	     # current second(s) time
	     CTS=`echo ${CT}  | tr ":" " " | awk '{print $2}'`
	     
	     # 01, 02 so one. sometimes errors "bash outputs errors." . so we remove the 1st position of the string
	     # when its under 10,  and the lenght of the string to 1 position only
             if [[ ${CTS:0:1} == "0" ]]
	     
	     then CTS=${CTS:1:1}
	     fi
	     
	     # make minutes and seconds to seconds only and forward 5 secs
	      MTS=$((${CTM:0} * 60))
	      ST=$((${MTS} + ${CTS}))
	      FWD=$(($ST + 5))
	      exec dcop amarok player seek $FWD
	fi
}

## backwards 5 sec-. and under 10 sec playtime. 2 sec back
function pbwd()
{
	if [[ `pgrep amarokapp` ]] 
	then CT=`dcop amarok player currentTime`

	     # current minutte(s) time 
	     CTM=`echo ${CT}  | tr ":" " " | awk '{print $1}'`
	     # current second(s) time
	     CTS=`echo ${CT}  | tr ":" " " | awk '{print $2}'`
	     # make minutes and seconds to seconds only
	     MTS=$((${CTM:0} * 60))
	     ST=$((${MTS} + ${CTS}))	     
	     # 01, 02 so one. sometimes errors "bash outputs errors." . so we remove the 1st position of the string
	     # when its under 10,  and the lenght of the string to 1 position only
             if [[ ${CTS:0:1} == "0" ]]
	     then CTS=${CTS:1:1}
	          BWD=$(($ST - 2))
		  exec dcop amarok player seek $BWD
	    # over 10 means over 10 sec. then we increase time backwards to -5
	    else CTS=${CTS:0}
	          BWD=$(($ST - 5))
		  exec dcop amarok player seek $BWD
	     fi
	fi
}

case $ARG in start)
	start
	;;
	stop)
	stop
	;;
	next)
	next
	;;
	prev)
	prev
	;;
	up)
	up
	;;
	down)
	down
	;;
	pfwd)
	pfwd
	;;
	pbwd)
	pbwd
	;;
	*)
	exit 0
	;;
esac