#!/bin/sh
set -e -u

SCRIPTNAME=termux-infrared-transmit
show_usage () {
    echo "Usage: $SCRIPTNAME -f frequency pattern"
    echo "Transmit an infrared pattern. The pattern is specified in comma-separated on/off intervals, such as '20,50,20,30'. Only patterns shorter than 2 seconds will be transmitted."
    echo ""
    echo "  -f frequency  IR carrier frequency in Hertz"
    echo ""
    exit 0
}

FREQUENCY=""
while getopts :hf: option
do
    case "$option" in
	h) show_usage;;
	f) FREQUENCY="--ei frequency $OPTARG";;
	?) echo "$SCRIPTNAME: illegal option -$OPTARG"; exit 1;
    esac
done
shift $(($OPTIND-1))

if [ -z "$FREQUENCY" ]; then echo "$SCRIPTNAME: No frequency specified"; exit 1; fi

if [ $# -lt 1 ]; then echo "$SCRIPTNAME: too few arguments"; exit 1; fi
if [ $# -gt 1 ]; then echo "$SCRIPTNAME: too many arguments"; exit 1; fi

@TERMUX_API@ InfraredTransmit $FREQUENCY --eia pattern $1