#!/bin/bash

cd "$(dirname "$0")"
SEARCHPATH="@DATA_INSTALL_DIR@"
[ ! -e "$SEARCHPATH" -a -e ./modules ] && SEARCHPATH="."

for i in $(find $SEARCHPATH/modules/ -type f | sort); do
	source $i
done

function print_usage()
{
cat <<EOF >&2
$(basename $0):

 -ni
        NonInteractive mode, no prompt is shown and INSTALLER_OUTPUT is set to 1
 -e command
        Run "command"

EOF
exit 0
}

function set_debug()
{
    case $1 in
    on)
        PS4="<acritoxinstaller debug> "
        set -x
        ;;
    off)
        set +x
        PS4="+"
        ;;
    esac
}

if ((UID)); then
	p="$PWD/$(basename "$0")"
	if [ -x /usr/bin/sudo ]; then
		if /usr/bin/sudo -n -l "$p" &>/dev/null; then
			/usr/bin/sudo "$p" "$@"
			exit $?
		fi
	fi
	if [ -x /usr/lib/kde4/libexec/kdesu ]; then
		/usr/lib/kde4/libexec/kdesu --noignorebutton -d -- "$p" --pid $$ "$@" &>/dev/null
		exit $?
	fi
	if [ -z "$as_root" ]; then
		for as_root in /usr/bin/kdesu /usr/bin/gksu exec
		do
			[ -x $as_root ] && break
		done
	fi
	$as_root "$p" --pid $$ "$@" &>/dev/null
	exit $?
fi

while [ "$1" ]
do
	case $1 in
	"-ni")
		export INSTALLER_OUTPUT=1
		;;
	"-e")
		shift
		eval "$@"
		exit $?
		;;
	"--pid")
		exec 0<"/proc/$2/fd/0" 1>"/proc/$2/fd/1" 2>"/proc/$2/fd/2"
		shift
		;;
	"-h")
		print_usage
		;;
	esac
	shift
done

EOT="$(echo -e '\004')"
while true
do
	if ((INSTALLER_OUTPUT)); then
	        echo "<acritoxinstaller prompt>"
		IFS=" " read -d "$EOT" -r command params
	else
		IFS=" " read -er -p "installer> " command params
	fi
	declare -F ${command}_pre &>/dev/null && eval "${command}_pre"
	eval "$command $params"
	declare -F ${command}_post &>/dev/null && eval "${command}_post"
done