#!/bin/bash

if [ $# != 3 ]; then
  echo "Usage: $0 <width> <height> <rotation>"
  exit 1
fi

WIDTH="$1"
HEIGHT="$2"
ROTATION="$3"

if [[ ! "$WIDTH" =~ ^[0-9]+$ ]]; then
  echo "Invalid width '$WIDTH'."
  exit 1
fi

if [[ ! "$HEIGHT" =~ ^[0-9]+$ ]]; then
  echo "Invalid height '$HEIGHT'."
  exit 1
fi

if [[ ! "$ROTATION" =~ ^[0-3]$ ]]; then
  echo "Invalid rotation '$ROTATION'."
  exit 1
fi


OPTIONS="framebuffer_width=$WIDTH "
OPTIONS+="framebuffer_height=$HEIGHT "
OPTIONS+="display_rotate=$ROTATION"

edit-boot-config $OPTIONS