termux-api: Cleanup and improve consistency

[termux-packages] / packages / termux-api / termux-notification

#!/bin/sh
set -e -u

SCRIPTNAME=termux-notification
show_usage () {
    echo "Usage: termux-notification [-c content] [-i id] [-t title] [-u url]"
    echo "Display a system notification."
    echo ""
    echo "  -c content notification content to show"
    echo "  -i id      notification id (will overwrite any previous notification"
    echo "               with the same id)"
    echo "  -t title   notification title to show"
    echo "  -u url     notification url when clicking on it"
    echo ""
    exit 0
}

CONTENT_OR_TITLE_SET=no
ARG_C=""
OPT_C=""
ARG_I=""
OPT_I=""
ARG_T=""
OPT_T=""
ARG_U=""
OPT_U=""

while getopts :hc:i:t:u: option
do
	case "$option" in
		h) show_usage;;
		c) ARG_C="--es content"; OPT_C="$OPTARG"; CONTENT_OR_TITLE_SET=yes;;
		i) ARG_I="--es id"; OPT_I="$OPTARG";;
		t) ARG_T="--es title"; OPT_T="$OPTARG"; CONTENT_OR_TITLE_SET=yes;;
		u) ARG_U="--es url"; OPT_U="$OPTARG";;
		?) echo "$SCRIPTNAME: illegal option -$OPTARG"; exit 1;
	esac
done
shift $(($OPTIND-1))

if [ $# != 0 ]; then echo "$SCRIPTNAME: too many arguments"; exit 1; fi

if [ $CONTENT_OR_TITLE_SET = "no" ]; then
	echo "$SCRIPTNAME: no title or content set"
	exit 1
fi

set --
if [ -n "$ARG_C" ]; then set -- "$@" $ARG_C "$OPT_C"; fi
if [ -n "$ARG_I" ]; then set -- "$@" $ARG_I "$OPT_I"; fi
if [ -n "$ARG_T" ]; then set -- "$@" $ARG_T "$OPT_T"; fi
if [ -n "$ARG_U" ]; then set -- "$@" $ARG_U "$OPT_U"; fi

@TERMUX_API@ Notification "$@"