#!/bin/bash

#Set this values on new system!
##########################################
eDP1_PATH="/sys/class/drm/card0-eDP-1"
DP1_PATH="/sys/class/drm/card0-DP-1"
HDMI_PATH="/sys/class/drm/card0-HDMI-A-1"
eDP1_NAME="eDP1"
DP1_NAME="DP1"
HDMI_NAME="HDMI1"
##########################################

eDP1_STATUS=$(cat "$eDP1_PATH/status")
DP1_STATUS=$(cat "$DP1_PATH/status")
HDMI_STATUS=$(cat "$HDMI_PATH/status")

XRANDR_OUT=$(xrandr -q)
eDP1_MAX=$(echo "$XRANDR_OUT" | grep -A 1 $eDP1_NAME | tail -n1 | awk '{ print $1 }')
HDMI_MAX=$(echo "$XRANDR_OUT" | grep -A 1 $HDMI_NAME | tail -n1 | awk '{ print $1 }')
DP1_MAX=$(echo "$XRANDR_OUT" | grep -A 1 $DP1_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 [[ ($COMMAND == "external") && ($HDMI_STATUS == "connected") ]]; then
	xrandr --dpi 96 --output $HDMI_NAME --mode $HDMI_MAX --output $eDP1_NAME --off

elif [[ ($COMMAND == "external") && ($DP1_STATUS == "connected") ]]; then
	xrandr --dpi 96 --output $DP1_NAME --mode $DP1_MAX --output $eDP1_NAME --off

elif [[ ($HDMI_STATUS == "connected") && ($eDP1_STATUS == "connected") && ($DP1_STATUS == "disconnected") ]]; then
	handle_non_exist_mode $HDMI_NAME $eDP1_NAME $HDMI_MAX $eDP1_MAX

elif [[ ($HDMI_STATUS == "disconnected") && ($eDP1_STATUS == "connected") && ($DP1_STATUS == "connected") ]]; then
	handle_non_exist_mode $DP1_NAME $eDP1_NAME $DP1_MAX $eDP1_MAX

elif [[ ($HDMI_STATUS == "connected") && ($eDP1_STATUS == "connected") && ($DP1_STATUS == "connected") ]]; then
	xrandr --dpi 96 --output $eDP1_NAME --mode $eDP1_MAX --output $HDMI_NAME --mode $HDMI_MAX --left-of $eDP1_NAME --output $DP1_NAME --mode $DP1_MAX --left-of $HDMI_NAME

elif [[ ($HDMI_STATUS == "disconnected") && ($eDP1_STATUS == "connected") && ($DP1_STATUS == "disconnected") ]]; then
	~/bin/dnote.sh

fi