~/.bin/dock

#!/bin/bash
# ~/.bin/dock
#

# constants
PID=$(pgrep dbus-launch)
USER=$(ps -o user --no-headers $PID)
[ -z $USER ] && export USER=demian
USERHOME=$(getent passwd $USER | cut -d: -f6)
SUSPCAT=$(cat /sys/bus/usb/devices/usb1/power/autosuspend)
HDMI2=$(xrandr | grep HDMI2)
DOCKED=$(cat /sys/devices/platform/dock.0/docked)
DATEN=$(ls /dev/disk/by-uuid | grep 212A2E340D494014 | wc -l)
LOG=$USERHOME/.logs/dock.log
EXTOFF=$(xrandr | grep 'HDMI2 disconnected' | wc -l)
export XAUTHORITY="$USERHOME/.Xauthority"
for x in /tmp/.X11-unix/*; do
    DISPLAYNUM=$(echo $x | sed s#/tmp/.X11-unix/X##)
    if [ x"$XAUTHORITY" != x"" ]; then
            export DISPLAY=":$DISPLAYNUM"
    fi
done

# utilities
logger() { echo "$(date +'[ %d %b %Y %H %M ]') :: $*" | tee -a $LOG; }
errorout() { logger "error: $*"; exit 1; }

# must be root
[[ $(id -u) -ne 0 ]] && errorout 'you must be root'
[[ $DOCKED = 0 ]] && errorout 'no docking station found'
[[ "$1" = '-v' ]] && verbose=true || verbose=false

##################################
logger "starting docking process:"
##################################

$verbose && logger "switching monitor"
case "$HDMI2" in
    "HDMI2 connected ("*)   xrandr --output LVDS1 --off --output HDMI2 --auto
                sh $USERHOME/.wallpaper &;;
    "HDMI2 disconnected"*)  $verbose && logger "-> no display connected"
                $verbose && logger "-> retrying in 2, 5 and 20 seconds"
                (sleep 2 && xrandr --output LVDS1 --off --output HDMI2 --auto
                sleep 3 && xrandr --output LVDS1 --off --output HDMI2 --auto && sh $USERHOME/.wallpaper
                sleep 7 && xrandr --output LVDS1 --off --output HDMI2 --auto && sh $USERHOME/.wallpaper)&;;
    "HDMI2 connected 1"*)   $verbose && logger "-> display already in use";;
    *)              $verbose && logger "-> undefined display state";;
esac

$verbose && logger "changing network profile to home"
(rmmod e1000e && modprobe e1000e
netcfg -a && netcfg home) >/dev/null 2>&1 &

$verbose && logger "mounting /media/daten"
case "$DATEN" in
  1)  if [ $(cat /proc/mounts | grep '/media/daten' | wc -l) = 0 ];then
          (hdparm -B 127 -S 36 -W 0 -M 128 /dev/disk/by-uuid/212A2E340D494014
      echo 1500 > /proc/sys/vm/dirty_writeback_centisecs
          sleep 5 && mount /media/daten) >/dev/null 2>&1 &
      else
          $verbose && logger "-> drive already mounted"
      fi;;
  0)  $verbose && logger "-> drive not present";;
esac

if [ $SUSPCAT -ge 1 ];then
    $verbose && logger "toggling usb suspend twice"
    (sh $USERHOME/.bin/usbsuspend && sleep .5 && sh $USERHOME/.bin/usbsuspend) &
else
    $verbose && logger "-> usb suspend not enabled"
fi

$verbose && logger "restarting conky"
su -c "killall conky" $USER
LANG=en_US.UTF-8 su -c "conky -q -c $USERHOME/.conkydock &" $USER &

logger 'success.'
echo >> $LOG