#!/usr/bin/env bash

# exit if a command fails
set -o errexit

# select which source to switch to
if [ "$#" -ne 1 ]; then
  echo -e "\\nUsage: $0 <input>\\n"
  exit 1
fi

# select which device to talk to via cec
DEVICE="0.0.0.0"

# if input is 0 and tv is on, turn off tv
if [ "$1" == "0" ]; then
  echo "standby ${DEVICE}" | cec-client -s -d 1
else
  echo "on ${DEVICE}" | cec-client -s -d 1
  echo "tx 4F:82:{$1}0:00" | cec-client -s
fi