#!/bin/bash

if [ $# = 0 ] || [ $1 = --help ] ; then
	echo "USAGE: apertium-pack-j modefile..."
	echo -e "  modefile\t.mode file(s) for which to create the package" 
	exit
fi
if [ -z "$LTTOOLBOX_JAVA_PATH" ] ; then
	# Try the standard location
	LTTOOLBOX_JAVA_PATH="/usr/local/share/apertium/lttoolbox.jar"
fi
if [ -z "$LTTOOLBOX_JAVA_PATH" ] || [ ! -e $LTTOOLBOX_JAVA_PATH ] ; then
	echo "ERROR: lttoolbox-java not found."
	echo "Specify the correct path for your lttoolbox-java installation as follows:"
	echo -e "\texport LTTOOLBOX_JAVA_PATH=\"/path/to/your/lttoolbox.jar\""
	exit
fi
if [ -z "$ANDROID_SDK_PATH" ] || [ ! -e $ANDROID_SDK_PATH ] ; then
	echo "WARNING: Android SDK not found."
	echo "The generated package will not be compatible with Android."
	echo "Specify the correct path for your Android SDK installation as follows:"
	echo -e "\texport ANDROID_SDK_PATH=\"/path/to/your/android-sdk-linux\""
	echo
fi


PACK_ID=`echo ${1//*\/}`
PACK_ID=`echo ${PACK_ID%.*}`
JAR_FILE=`echo apertium-${PACK_ID%.*}.jar`

CURRENT_DIR=$( pwd )
TEMP_DIR=$( mktemp -d )
trap "{ cd $CURRENT_DIR ; rm -rf $TEMP_DIR; }" INT TERM EXIT

cd $TEMP_DIR
mkdir transfer_classes
mkdir data
mkdir data/modes
cp $LTTOOLBOX_JAVA_PATH $JAR_FILE

for MODE_FILE in "$@"
do
	cd $CURRENT_DIR
	if [ ! -e $MODE_FILE ] ; then
		echo "$MODE_FILE: File not found. Skipping..."
		cd $TEMP_DIR
		continue
	fi
	if [[ ! $MODE_FILE = *.mode ]] ; then
		echo "$MODE_FILE: Invalid mode file (you must use Apertium .mode files). Skipping..."
		cd $TEMP_DIR
		continue
	fi
	MODE_CONTENT=`cat $MODE_FILE`
	OLD_IFS="$IFS"
	IFS="|"
	PROGRAM_ARRAY=( $MODE_CONTENT )
	IFS="$OLD_IFS"
	cd $TEMP_DIR

	NEW_MODE_FILE=data/modes/`echo ${MODE_FILE//*\/}`

	FIRST_PROGRAM=true
	for PROGRAM in "${PROGRAM_ARRAY[@]}"
	do
		if $FIRST_PROGRAM; then
			FIRST_PROGRAM=false
		else
			echo -n " |" >> $NEW_MODE_FILE
		fi
		FIRST_ARG=true
		TRANSFER_FILE_EXPECTED=false
		for ARG in $PROGRAM
		do
			if $FIRST_ARG; then
				FIRST_ARG=false
				echo -n " ${ARG//*\/}" >> $NEW_MODE_FILE
				if [[ ${ARG//*\/} == apertium-transfer || ${ARG//*\/} == apertium-interchunk || ${ARG//*\/} == apertium-postchunk ]]; then
					TRANSFER_FILE_EXPECTED=true
				fi
			elif [[ $ARG == -* || $ARG == \$* ]] ; then
				echo -n " $ARG" >> $NEW_MODE_FILE
			else
				if $TRANSFER_FILE_EXPECTED; then
					TRANSFER_FILE_EXPECTED=false
					CLASS_NAME=${ARG//*\/}
					CLASS_NAME=${CLASS_NAME//./_}
					CLASS_NAME=${CLASS_NAME//-/_}.class
					java -Dlttoolbox.jar=$JAR_FILE -client -Dfile.encoding=UTF-8 -jar $JAR_FILE apertium-preprocess-transfer-bytecode-j $ARG transfer_classes/$CLASS_NAME
					zip $JAR_FILE transfer_classes/$CLASS_NAME
				fi
				TEMP_FILE=data/${ARG//*\/}
				echo -n " $TEMP_FILE" >> $NEW_MODE_FILE
				cp $ARG $TEMP_FILE
				zip $JAR_FILE $TEMP_FILE
			fi
		done
	done

	zip $JAR_FILE $NEW_MODE_FILE

	echo $NEW_MODE_FILE >> modes
done

if [ ! -e modes ] ; then
	echo "Nothing to do!"
	exit
fi

zip -j $JAR_FILE modes

#Convert to Dalvik bytecode for Android
if [ -n "$ANDROID_SDK_PATH" ] && [ -e $ANDROID_SDK_PATH ] ; then
	$ANDROID_SDK_PATH/platform-tools/dx --dex --verbose --output classes.dex transfer_classes/*
	zip $JAR_FILE classes.dex
fi

#Delete unnecessary classes for runtime
zip -d $JAR_FILE org/apertium/transfer/old/* org/apertium/transfer/generation/* org/apertium/charlifter/* Playground.class Profiling.class xsd/acx.xsd xsd/dix.xsd

#Create the README file
echo >  README "Content of the package:"
echo >> README
echo >> README "- data/ -> This directory contains the language pair itself. You could extract it and use with your local installation of Apertium."
echo >> README
echo >> README "- transfer_classes/ -> This directory contains the Java bytecode classes for transfer. This is only used when using the package from standard Java so, if you are going to use it exclusively from Android, you can delete it."
echo >> README
echo >> README "- org/ -> This directory contains the lttoolbox-java engine, which makes the package self-executable. If you are not interested on this feature (for instance, because you are going to use the package exclusively from Android), you can delete it."
echo >> README
echo >> README "- META-INF/ -> Contains the MANIFEST.MF of this Jar, which is used by Java. It takes a few bytes and can rarely be removed, so please don't touch it unless you know what you are doing."
echo >> README
echo >> README "- classes.dex -> Dalvik bytecode of the transfer classes, used by Android instead of the standard Java bytecode classes at transfer_classes. If you are not going to use the package from Android, you can delete it."
echo >> README
echo >> README "- modes -> This simply lists the path of the available modes inside the package, and its used by lttoolbox-java. It takes a few bytes and can rarely be removed, so please don't touch it unless you know what you are doing."
echo >> README
echo >> README "- README -> This readme file."
zip $JAR_FILE README


mv $JAR_FILE $CURRENT_DIR