#!/bin/bash

usage_create_lvpxml() {
	echo -n
}

process_create_lvpxml() {
	unset files
	unset title
	unset titleold
	offset=0

	for x in `printenv | grep ^file_ | cut -f1 -d=` ; do
		[ ! -z "${files}" ] && files="${files}\n"
		files="${files}${x}"
	done

	files=`echo -e ${files} | sort`

	rm -f ${lvpxml}
	touch ${lvpxml}

	echo "Creating lvp.xml file"
	echo "<lvp>" >${lvpxml}
	item=0
	for file in ${files} ; do
		eval "file=\${${file}}" # dereference the variable to get the real file

		title=${file##*/}
		title=${title%% -*}
		if [ "${title}" != "${titleold}" ] ; then
			titleold=${title}
			echo "Found possible new title \"${title}\""
			confirm "Do you want to start a new headline?"
			if [ ${?} -eq 0 ] ; then
				[ ${offset} -gt 0 ] && offset=$(( ${offset} + 2 ))
				[ $(( ${item} % 4 )) -gt 0 ] && item=$(( ${item} + ( 4 - ( ${item} % 4 ) ) ))
				read -p "Please enter new title [${title}]: " tmp
				[ ! -z "${tmp}" ] && title="${tmp}"
				cat >> ${lvpxml} <<-EOF
				<item type="text">
					<position x="0" y="$(( 95 - ((${item} - (${item} % 4)) / 4) * 15 - ${offset} ))">
					<size w="5" h="5">
					<text>${title}</text>
				</item>
				EOF
				offset=$(( ${offset} + 10 ))
			fi
		fi

		button_text=${file%.*}
		button_text=${button_text##*- }
		read -p "Enter button text for ${file} [${button_text}]: " tmp
		[ ! -z "${tmp}" ] && button_text=${tmp}
		cat >> ${lvpxml} << EOF
	<item type="button">
		<position x="$(( (${item} % 4) * 50 - 75 ))" y="$(( 95 - ((${item} - (${item} % 4)) / 4) * 15 - ${offset} ))" />
		<action>/usr/bin/mplayer -fs -zoom ${mplayer_param} '${file}'</action>
		<size w="40" h="10" />
		<text>${button_text}</text>
	</item>
EOF
# a little "special" for multi-language anime
#if [ "${file##*.}" == "avi" ] ; then
#cat >> ${lvpxml} << EOF
#<item type="button">
#<position x="$(( (${item} % 4) * 50 - 75 ))" y="$(( 95 - ((${item} - (${item} % 4)) / 4) * 15 - 7 - ${offset} ))" />
#<action>/usr/bin/mplayer -aid 2 -sid 3 -fs -zoom '${file}'</action>
#<size w="40" h="4" />
#<text>jap</text>
#</item>
#EOF
#fi
		item=$(( ${item} + 1 ))
	done
	echo "</lvp>" >> ${lvpxml}

	echo "done creating lvp.xml file"
	echo "Please check that the file is correct!"

	if [ ! -z ${DISPLAY} ] ; then
		echo "Trying to show menu now on ${DISPLAY}"
		lvp=`which lvp`
		[ -z "${lvp}" ] && lvp="livesystem/usr/bin/lvp"
		if ! test -x ${lvp} ; then
			echo "Can't execute ${lvp}... this doesn't look good..."
		else
			${lvp} ${lvpxml}
		fi
	fi
}