#!/bin/bash -login
# This program is used to manage USB devices using the usbwatch binary
# to display icons and xmessage to also show text updates.

PRG_USER=`whoami`

if ! [[ -d $HOME/.usbwatch ]] ; then
 mkdir -p $HOME/.usbwatch
 cp /etc/X11/usbwatch/usbwatchrc.default $HOME/.usbwatch/usbwatchrc
 cp /etc/X11/usbwatch/links/usbwatch-idle.lnk $HOME/.usbwatch/usbwatch.lnk
 cp /etc/X11/usbwatch/prog.prefs $HOME/.usbwatch/prog.prefs
fi

if [[ "`pgrep -u $PRG_USER usbwatch`" = "" ]] ; then
 rm -f $HOME/.usbwatch/usbwatch.lnk
 cp /etc/X11/usbwatch/links/usbwatch-idle.lnk $HOME/.usbwatch/usbwatch.lnk 
else
 pkill -u $PRG_USER usbwatch 2> /dev/null
 rm -f $HOME/.usbwatch/usbwatch.lnk
 cp /etc/X11/usbwatch/links/usbwatch-idle.lnk $HOME/.usbwatch/usbwatch.lnk 
fi

# sleep .5

# The only way to get rights to mount and unmount is to run the final
# program from this script and not exit . We set a trap for SIGINT (-2)
# and use that to keep the icons refreshed. When an event is triggered
# by usb-hotmount or the device handler, they send an interrupt to
# usbwatch on the users desktop. This way avoids contantly polling
# and preserves the login environment of the user. 


MY_PID=$$

trap_int() {
 sleep .5
 usbwatch &> /dev/null

}

while [ -d /proc/$MY_PID ] ; do
 trap trap_int 2
 # note that leaving out this initial start of the program means that the loop waits for
 # an INT signal before starting the program above.
 usbwatch &> /dev/null
done