#!/bin/bash
# Author : Ismael Barros² <ismael@barros2.org>
# License : BSD http://en.wikipedia.org/wiki/BSD_license

pg4l_dir=$(dirname $(readlink -f $0))
. "$pg4l_dir/util.sh"

OIFS=$IFS
NIFS=$'\n'


[ -z "$*" ] && {
	echo "Usage: "
	echo "  $0 <lgp_installer.run> [options]"
	echo "Options:"
	echo "  --skip-extract: Skip extract of the makeself package"
	echo "  --skip-cleanup: Skip cleanup of temporal directories"
	echo "  --skip-appimage: Skip creation of AppImage"
	echo "  --lgp-unpacker: Use lgp installer to extract the package data"
	exit
}

EXTRACT=1
CLEANUP=1
APPIMAGE=1
USE_LGP_UNPACKER=

for i in $@; do
        case $i in
                --skip-extract) EXTRACT=; shift ;;
                --skip-cleanup) CLEANUP=; shift ;;
                --skip-appimage) APPIMAGE=; shift ;;
                --lgp-unpacker) USE_LGP_UNPACKER=1; shift ;;
		*) pkg=$i; shift ;;
	esac
done

[ -n "$pkg" ] || die "No lgp installer specified"

target="$PWD/${pkg}_uncompressed"
appDirPath="$PWD/${pkg}.AppDir"

installScript=$(sh "$pkg" --info | tail -n2 | head -n1 | trimp)
[ -n "$installScript" ] || die "Could not find 'install script'"

if [ $EXTRACT ]; then
	sh "$pkg" --noexec --target "$target" || die "Could not unpack package"
fi

cd "$target" || exit 1

# Removing useless setup.xml's
find -name lgp_update -type d -exec rm -rvf {} +
find -name lgp_uninstall -type d -exec rm -rvf {} +

configFile="$(find -iname setup.xml)"
[ -n "$configFile" ] || die "Could not find config file"

configDir=$(dirname $(dirname $configFile))
cd "$configDir" || die "Directory $configDir doesn't exist"

configFile="$(find -iname setup.xml)"
[ -n "$configFile" ] || die "Could not find setup.xml"

# Find package name
IFS=$NIFS
for configBinLine in $(xml_extract_node "install" "$configFile"); do
	configBinLine=$(trim "$configBinLine")
	echo _$configBinLine
	case "$configBinLine" in
		"<install"*)
			packageName=$(xml_extract_property desc "$configBinLine")
			;;
		*) ;;
	esac
done
IFS=$OIFS

[ -n "$packageName" ] || die "Could not find package name"
echo "Package name: $packageName"

# Find binaries
binaries=
main=
IFS=$NIFS
for configBinLine in $(xml_extract_node "binary" "$configFile"); do
	configBinLine=$(trim "$configBinLine")
	case "$configBinLine" in
		"<binary"*)
			filename=$(xml_extract_property symlink "$configBinLine")
			[ $filename ] || continue


			play=$(xml_extract_property play "$configBinLine")
			if [ "$play" = "yes" ]; then
				main=1
				binIconName=$(xml_extract_property icon "$configBinLine")
				iconPath=$(find -iname "$binIconName" | head -n1)

				echo "Main binary: '$filename' with icon '$binIconName'"
			fi
			;;
		"</binary>") ;;
		*)
			binPath="bin/Linux/x86/$configBinLine"
			[ -f "$binPath" ] || die "$binPath does not exist"
			echo "Adding binary $binPath"
			binaries+=" $configBinLine"

			if [ $main ]; then
				binFilename="$configBinLine"
				main=
			fi
			;;
	esac
done
IFS=$OIFS

[ -n "$binFilename" ] || die "Could not find binary name"
[ -n "$binIconName" ] || die "Could not find icon name"
[ -n "$iconPath" ] || die "Could not find icon path"


if [ $USE_LGP_UNPACKER ]; then
	cd "$target"
	binDir="$PWD/_BIN_"
	option="lololoki"
	echo "Running $installScript ..."
	./$installScript -v 0 -i "$appDirPath" -b "$binDir" -o "$option"
	reset # Just in case lgp installer fucks shit up

else
	mkdir -p "$appDirPath"

	IFS=$NIFS
	for i in $(xml_extract_node "files" "$configFile" | grep -v "<files" | grep -v "</files>"); do
		i=$(echo "$i" | sed -e "s/\*//g")
		i=$(trim "$i")
		echo "Installing file '$i' ..."
		case "$i" in
			*.tar*)
				tar -xvf "$i" -C "$appDirPath" || die "Could not extract $i" || die
				;;
			*)
				if [ -f "$i" ]; then
					install -Dv "$i" "$appDirPath/$i" || die "Could not copy $i" || die
				elif [ -d "$i" ]; then
					mkdir -p "$appDirPath/$i"
					cp -a "$i"/* "$appDirPath/$i"/ || die "Could not copy $i" || die
				else
					die "Don't know what to do with '$i'"
				fi
				;;
		esac
	done
	IFS=$OIFS

	for i in $binaries; do
		echo "Installing binary '$i' ..."
		install -Dv "bin/Linux/x86/$i" "$appDirPath/$i" || die "Could not copy binary $i" || die
		chmod a+x "$appDirPath/$i"
	done
fi

#pushd "$appDirPath"
#realBinFilename=$(find -name "$binFilename" -type f -perm /a+x)
#[ -n "$realBinFilename" ] || die "Could not find real binary path for '$binFilename'"
#popd

convert -resize 32x "$iconPath" "$appDirPath"/AppRun.png || die "Could not copy icon"
[ -f "AppRun-0.png" ] && {
	mv -v AppRun-0.png AppRun.png
	rm -v AppRun-?.png
}
optipng "$appDirPath"/AppRun.png >/dev/null


cd "$appDirPath"
cp $pg4l_dir/data/AppRun.desktop .
Suffix=-lgp
desktopFile_setParameter "AppRun.desktop" "Name" "$packageName r1$Suffix"
desktopFile_setParameter "AppRun.desktop" "X-AppImage-Release" "1"
desktopFile_setParameter "AppRun.desktop" "X-AppImage-SourcePackages" "$(basename "$pkg")"
desktopFile_setParameter "AppRun.desktop" "X-AppImage-Tags" "LGP"

echo "Creating AppRun with Exec='$binFilename'..."

echo '#!/bin/bash' > AppRun
echo 'cd $(dirname "$(readlink -f "$0")")' >> AppRun
#for i in $(for i in $(find -iname *.so*); do dirname "$i"; done | sort | uniq); do
#	echo "export LD_LIBRARY_PATH=\$LD_LIBRARY_PATH:$i" >> AppRun	
#done
echo "./$binFilename" >> AppRun
chmod +x AppRun

if [ $APPIMAGE ]; then
	$pg4l_dir/buildAppImage || die "Could not build AppImage"
fi

if [ $CLEANUP ]; then
	echo "Removing $target"
	rm -rf "$target"
	echo "Removing $appDirPath"
	rm -rf "$appDirPath"
fi