#!/usr/bin/env fish

function set_device

set -g DEVICE "Wacom USB Bamboo PAD Pen stylus"
set -g DEVICETOUCH "Wacom USB Bamboo PAD Finger touch"

set -g WACOMPROPTOUCHSPEED "Device Accel Velocity Scaling"
set -g WACOMPROPSCROLLPSEED "ScrollDistance"

xsetwacom set "$DEVICE" ResetArea

set -l AREATOT (xsetwacom get "$DEVICE" Area)
set -g AREAX (echo $AREATOT | awk '{print $3}')
set -g AREAY (echo $AREATOT | awk '{print $4}')

end

function set_screen

set CONNECTED_DISPLAYS (xrandr -q --current | \
sed -n 's/^\([^ ]\+\) connected .*/\1/p') desktop

set -g SCREEN (for d in $CONNECTED_DISPLAYS
    echo $d
end | rofi -dmenu -i -p "Select your dispaly" | tr -d '\n')

set -l LINE (xrandr -q --current | if [ "$SCREEN" = "desktop" ]
    sed -n 's/^Screen 0:.*, current \([0-9]\+\) x \([0-9]\+\),.*/\1 \2/p'
else
    sed -n "s/^$SCREEN"' connected \(primary \)\{0,1\}\([0-9]\+\)x\([0-9]\+\)+.*/\2 \3/p'
end)

echo $LINE | read -g WIDTH HEIGHT

if test -z $WIDTH || test -z $HEIGHT
    exit 1
end

end

function adjust_device

set RATIOAREAY (math ceil \($AREAX \* $HEIGHT \/ $WIDTH\))
set RATIOAREAX (math ceil \($AREAY \* $WIDTH \/ $HEIGHT\))

if test $AREAY -gt $RATIOAREAY
    set -g NEWAREAX $AREAX
    set -g NEWAREAY $RATIOAREAY
else
    set -g NEWAREAX $RATIOAREAX
    set -g NEWAREAY $AREAY
end

xsetwacom set "$DEVICE" Area 0 0 $NEWAREAX $NEWAREAY
xsetwacom set "$DEVICE" MapToOutput "$SCREEN"

xinput set-float-prop $DEVICETOUCH $WACOMPROPTOUCHSPEED 0.5

xsetwacom set $DEVICETOUCH $WACOMPROPSCROLLPSEED "90"

end

set_device
set_screen
adjust_device