#!/bin/bash
set -x
#Set this values on new system!
##########################################
NOTE_PATH="/sys/class/drm/card0-eDP-1"
EXT1_PATH="/sys/class/drm/card0-DP-1"
EXT2_PATH="/sys/class/drm/card0-DP-3"
NOTE_NAME="eDP1"
EXT1_NAME="DP1-1"
EXT2_NAME="DP1-3"
##########################################

NOTE_STATUS=$(cat "$NOTE_PATH/status")
EXT1_STATUS=$(cat "$EXT1_PATH/status")
EXT2_STATUS=$(cat "$EXT2_PATH/status")

XRANDR_OUT=$(xrandr -q)
NOTE_MAX=$(echo "$XRANDR_OUT" | grep -A 1 $NOTE_NAME | tail -n1 | awk '{ print $1 }')
EXT2_MAX=$(echo "$XRANDR_OUT" | grep -A 1 $EXT2_NAME | tail -n1 | awk '{ print $1 }')
EXT1_MAX=$(echo "$XRANDR_OUT" | grep -A 1 $EXT1_NAME | tail -n1 | awk '{ print $1 }')

COMMAND="$1"

function handle_non_exist_mode {
	xrandr --dpi 96 --output $2 --mode $4 --output $1 --mode $3 --left-of $2
}

if [[ ("$COMMAND" == "external") && ("$EXT2_STATUS" == "connected") ]]; then
	xrandr --dpi 96 --output "$EXT2_NAME" --mode "$EXT2_MAX" --output "$NOTE_NAME" --off

elif [[ ("$COMMAND" == "external") && ("$EXT1_STATUS" == "connected") ]]; then
	xrandr --dpi 96 --output "$EXT1_NAME" --mode "$EXT1_MAX" --output "$NOTE_NAME" --off

elif [[ ("$EXT2_STATUS" == "connected") && ("$NOTE_STATUS" == "connected") && ("$EXT1_STATUS" == "disconnected") ]]; then
	handle_non_exist_mode "$EXT2_NAME" "$NOTE_NAME" "$EXT2_MAX" "$NOTE_MAX"

elif [[ ("$EXT2_STATUS" == "disconnected") && ("$NOTE_STATUS" == "connected") && ("$EXT1_STATUS" == "connected") ]]; then
	handle_non_exist_mode "$EXT1_NAME" "$NOTE_NAME" "$EXT1_MAX" "$NOTE_MAX"

elif [[ ("$EXT2_STATUS" == "connected") && ("$NOTE_STATUS" == "connected") && ("$EXT1_STATUS" == "connected") ]]; then
	xrandr --dpi 96 --output "$NOTE_NAME" --mode "$NOTE_MAX" --output "$EXT2_NAME" --mode "$EXT2_MAX" --left-of "$NOTE_NAME" --output "$EXT1_NAME" --mode "$EXT1_MAX" --left-of "$EXT2_NAME"

elif [[ ("$EXT2_STATUS" == "disconnected") && ("$NOTE_STATUS" == "connected") && ("$EXT1_STATUS" == "disconnected") ]]; then
	~/bin/dnote.sh

fi