#!/bin/bash

usage_create_lvpxml() {
	echo -n
}

create_thumbnail() {
	tmp="`mktemp`"
	rm -f $tmp
	file="$1"
	item=$2
	time=$3

	mplayer -nosound -vo png -ss $time -frames 2 "livesystem/$file" >/dev/null 2>&1
	orig="00000002.png"
	[ ! -f "${orig}" ] && orig="00000001.png"
	[ ! -f "${orig}" ] && return 1
	convert -resize '128x128!' ${orig} SGI:$tmp
	convert -depth 8 -size 128x128 SGI:$tmp gray:$tmp.tmp
	convert -depth 8 -size 128x128 gray:$tmp.tmp SGI:$tmp.gray
	mv $tmp $item.color.rgb
	mv $tmp.gray $item.gray.rgb
	rm -f $tmp*
	rm -f 000*
	return 0
}

process_create_lvpxml() {
	unset files
	unset title
	unset titleold
	time="00:02:00"
	offset=0

	for x in ${!file_*} ; do
		[ -z "${files}" ] || files="${files}\n"
		files="${files}${x}"	# note: we're not dereferencing the variables here to keep the order the user specified
	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 - ( ${item} % 4 ) ) ))
				lvp_read tmp "${title}" Please enter new title [${title}]:
				[ -z "${tmp}" ] || title="${tmp}"
				cat >> ${lvpxml} <<-EOF
					<item type="text">
						<position x="0" y="$(( 95 - ((${item} - (${item} % 4)) / 4) * 50 - ${offset} ))">
						<size w="5" h="5">
						<text>${title}</text>
					</item>
				EOF
				offset=$(( ${offset} + 10 ))
			fi
		fi

		echo "File is ${file##*/}"
		lvp_read tmp "${time}" Time to get thumbnail from [${time}]:
		[ -n "${tmp}" ] && time="${tmp}"
		echo -n "Creating thumbnail ... "
		if create_thumbnail "$file" $item "$time" ; then
			mv $item.color.rgb livesystem/${file%/*}/
			mv $item.gray.rgb livesystem/${file%/*}/
			echo "done"
		else
			echo "failed"
			echo "Using traditional display."
		fi
		
		button_text=${file%.*}
		button_text=${button_text##*- }
		lvp_read tmp "${button_text}" Enter button text for ${file} [${button_text}]:
		[ -z "${tmp}" ] || button_text=${tmp}
		if [ -e livesystem/${file%/*}/$item.color.rgb ] ; then
			cat >> ${lvpxml} <<-EOF
				<item type="buttontexture">
					<texture normal=".${file%/*}/$item.gray.rgb" over=".${file%/*}/$item.color.rgb" pressed=".${file%/*}/$item.color.rgb" />
					<position x="$(( (${item} % 4) * 50 - 75 ))" y="$(( 75 - ((${item} - (${item} % 4)) / 4) * 50 - ${offset} ))" />
					<action>/usr/bin/mplayer -fs -zoom -alang en ${mplayer_param} '${file}'</action>
					<size w="40" h="40" />
				</item>
				<item type="text">
					<position x="$(( (${item} % 4) * 50 - 75 ))" y="$(( 75 - ((${item} - (${item} % 4)) / 4) * 50 - ${offset} - 25))"
					<size w="5" h="5">
					<text>${button_text}</text>
				</item>
			EOF
		else
			cat >> ${lvpxml} <<-EOF
				<item type="button">
					<position x="$(( (${item} % 4) * 50 - 75 ))" y="$(( 75 - ((${item} - (${item} % 4)) / 4) * 50 - ${offset} ))" />
					<action>/usr/bin/mplayer -fs -zoom ${mplayer_param} '${file}'</action>
					<size w="40" h="40" />
					<text>${button_text}</text>
				</item>
			EOF
		fi
#a little "special" for multi-language anime
		if [ "${file##*.}" == "mkv" -o "${file##*.}" == "ogm" ] ; then
			echo "This looks like a multi-languaged file."
			confirm "Do you want to add a small button with a second language?"
			if [ ${?} -eq 0 ] ; then
				lvp_read alang "ja" Audio language [ja]:
				lvp_read slang "en" Sub language [en]:
				cat >> ${lvpxml} <<-EOF
					<item type="button">
					<position x="$(( (${item} % 4) * 50 - 75 ))" y="$(( 75 - ((${item} - (${item} % 4)) / 4) * 50 - 22 - ${offset} ))" />
					<action>/usr/bin/mplayer -alang ${alang} -slang ${slang} -fs -zoom ${mplayer_param} '${file}'</action>
					<size w="40" h="4" />
					<text>jap</text>
					</item>
				EOF
			fi
		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
}