#!/bin/bash

################################################################################
# GENLANGSEL
#	THE REALLY REALLY BIG VERSION
################################################################################
#
#  Created: 01 July 2008
#
#  DESCRIPTION
#   Converts encoding from UTF8 master files to their proper encodings, and
#   concatenates them.
#
#  ENCODINGS USED
#   Bulgarian - CP1251 (Windows, Mac, Unix)
#   Chinese   - GB18030 (Windows, Mac, Unix)
#   French    - Latin 1 (Windows, Unix)
#             - MacRoman (Mac)
#   Italian   - Latin 1 (Windows, Unix)
#             - MacRoman (Mac)
#   Japanese  - Shift_JIS (Windows)
#			  - CP932 (Mac)
#             - EUC_JP (Unix)
#   Russian   - GB18030 (Windows, Mac, Unix)
#   Spanish   - Latin 1 (Windows, Unix)
#             - MacRoman
#
################################################################################

# No longer being used.
function clean()
{
	LANGS="Bulgarian Chinese English Italian Japanese French Russian Spanish"
	for LANG in $LANGS
	do
		if [ $1 = "mac" ]; then
			FILE=langsel.${LANG}.mac.c
		else
			FILE=langsel.${LANG}.c
		fi

		if [ ${LANG} = "Japanese" ]; then
			if [ $1 = "unix" ]; then
				FILE="langsel.Japanese.EUC.c"
			fi
		fi
		if [ -f ${FILE} ]; then
			echo "Deleting temp file $FILE."
			rm ${FILE}
		fi
	done
	if [ -f *~ ]; then
		rm *~
	fi
}

function jp2win ()
{
	#convert japanese to windows -- requires some tweaks.

	#clear temp files.
	if [ -f tmp_jp ]; then
		rm tmp_jp
	fi
	if [ -f tmp_jp2 ]; then
		rm tmp_jp2
	fi

	tr \\ \\$ < langsel.Japanese.utf.c > tmp_jp
	iconv -f utf8 -t sjis < tmp_jp > tmp_jp2
	tr \\$ \\ < tmp_jp2 > conversions/langsel.Japanese.c

	rm tmp_jp tmp_jp2
}

function catunix
{

	cat header.c > output/langsel_unix.c
	cat conversions/langsel.English.c >> output/langsel_unix.c
	echo "" >> output/langsel_unix.c
	cat conversions/langsel.Spanish.c >> output/langsel_unix.c
	echo "" >> output/langsel_unix.c
	cat conversions/langsel.Italian.c >> output/langsel_unix.c
	echo "" >> output/langsel_unix.c
	cat conversions/langsel.French.c >> output/langsel_unix.c
	echo "" >> output/langsel_unix.c
	cat conversions/langsel.Russian.c >> output/langsel_unix.c
	echo "" >> output/langsel_unix.c
	cat conversions/langsel.Bulgarian.c >> output/langsel_unix.c
	echo "" >> output/langsel_unix.c
	cat conversions/langsel.Chinese.c >> output/langsel_unix.c
	echo "" >> output/langsel_unix.c
	cat conversions/langsel.Japanese.EUC.c >> output/langsel_unix.c
	cat footer.c >> output/langsel_unix.c
}

function iconvit()
{
	#does iconv AND concatenates files.
	echo "iconv-ing files for mswin..."

	#latin1 files.
	iconv -f utf8 -t latin1 < langsel.English.utf.c > conversions/langsel.English.c
	iconv -f utf8 -t latin1 < langsel.French.utf.c > conversions/langsel.French.c
	iconv -f utf8 -t latin1 < langsel.Italian.utf.c > conversions/langsel.Italian.c
	iconv -f utf8 -t latin1 < langsel.Spanish.utf.c > conversions/langsel.Spanish.c

	iconv -f utf8 -t cp1251 < langsel.Bulgarian.utf.c > conversions/langsel.Bulgarian.c
	iconv -f utf8 -t gb18030 < langsel.Chinese.utf.c > conversions/langsel.Chinese.c
	if [ $1 = "unix" ]; then
		iconv -f utf8 -t eucjp < langsel.Japanese.utf.c > conversions/langsel.Japanese.EUC.c
	else
		jp2win
	fi

	iconv -f utf8 -t cp1251 < langsel.Russian.utf.c > conversions/langsel.Russian.c	
	
	echo "concatenating files..."

	if [ $1 = "unix" ]; then
		catunix
	else
		cat header.c > output/langsel_mswin.c
		cat conversions/langsel.English.c >> output/langsel_mswin.c
		echo "" >> output/langsel_mswin.c
		cat conversions/langsel.Spanish.c >> output/langsel_mswin.c
		echo "" >> output/langsel_mswin.c
		cat conversions/langsel.Italian.c >> output/langsel_mswin.c
		echo "" >> output/langsel_mswin.c
		cat conversions/langsel.French.c >> output/langsel_mswin.c
		echo "" >> output/langsel_mswin.c
		cat conversions/langsel.Russian.c >> output/langsel_mswin.c
		echo "" >> output/langsel_mswin.c
		cat conversions/langsel.Bulgarian.c >> output/langsel_mswin.c
		echo "" >> output/langsel_mswin.c
		cat conversions/langsel.Chinese.c >> output/langsel_mswin.c
		echo "" >> output/langsel_mswin.c
		cat conversions/langsel.Japanese.c >> output/langsel_mswin.c
		cat footer.c >> output/langsel_mswin.c
	fi

	echo "Done."
}

function iconvmac()
{
	#does iconv AND concatenates files.
	echo "iconv-ing files for mac..."

	#latin1 files.
	iconv -f utf8 -t latin1 < langsel.English.utf.c > conversions/langsel.English.mac.c
	iconv -f utf8 -t latin1 < langsel.French.utf.c > conversions/langsel.French.mac.c
	iconv -f utf8 -t latin1 < langsel.Italian.utf.c > conversions/langsel.Italian.mac.c
	iconv -f utf8 -t latin1 < langsel.Spanish.utf.c > conversions/langsel.Spanish.mac.c

	iconv -f utf8 -t cp1251 < langsel.Bulgarian.utf.c > conversions/langsel.Bulgarian.mac.c
	iconv -f utf8 -t gb18030 < langsel.Chinese.utf.c > conversions/langsel.Chinese.mac.c
	iconv -f utf8 -t cp932 < langsel.Japanese.utf.c > conversions/langsel.Japanese.mac.c
	iconv -f utf8 -t cp1251 < langsel.Russian.utf.c > conversions/langsel.Russian.mac.c
	
	echo "concatenating files..."
	cat header.c > output/langsel_mac.c
	cat conversions/langsel.English.mac.c >> output/langsel_mac.c
	echo "" >> output/langsel_mac.c
	cat conversions/langsel.Spanish.mac.c >> output/langsel_mac.c
	echo "" >> output/langsel_mac.c
	cat conversions/langsel.Italian.mac.c >> output/langsel_mac.c
	echo "" >> output/langsel_mac.c
	cat conversions/langsel.French.mac.c >> output/langsel_mac.c
	echo "" >> output/langsel_mac.c
	cat conversions/langsel.Russian.mac.c >> output/langsel_mac.c
	echo "" >> output/langsel_mac.c
	cat conversions/langsel.Bulgarian.mac.c >> output/langsel_mac.c
	echo "" >> output/langsel_mac.c
	cat conversions/langsel.Chinese.mac.c >> output/langsel_mac.c
	echo "" >> output/langsel_mac.c
	cat conversions/langsel.Japanese.mac.c >> output/langsel_mac.c
	cat footer.c >> output/langsel_mac.c

}

if [ ! -d conversions ]; then
	mkdir conversions
fi
if [ ! -d output ]; then
	mkdir output
fi

# Clean up old stuff... if it's still there ;)
clean mac
clean win
clean unix

case $1 in

	--help)
		echo "genlangsel v1.0."
		echo "DESCRIPTION"
		echo -e "\tGenerates langsel.c files using proper encodings."
		echo
		echo "USAGE"
		echo -e "\tgenlangsel [platform]"
		echo
		echo -e "\tIf no platform is specified, ALL platform langsel files"
		echo -e "\twill be generated"
		echo
		echo "PLATFORMS"
		echo "Acceptable arguments for 'platform' are:"
		echo -e "\tmswin - generate windows langsel.c"
		echo -e "\tunix - generate unix langsel_unix.c"
		echo -e "\tmac - generate mac langsel_mac.c"
		echo -e "\tall - generate all langsel files."
		echo -e "\tIf no platform is specified the script defaults to 'all'"
		echo
		echo "Using: genlangsel --help will bring up this message."
		echo
		echo "NOTES"
		echo -e "\tIf this script is not in \$PATH, run with the ./ prefix:"
		echo -e "\t./genlangsel all"
		echo -e "\tAll temporary converted files are located in conversions/ path."
		echo -e "\tThe final output is stored in output/ and should be moved up to the rasmol/src directory after compiling."

		exit 0;

		;;

	mac)
		iconvmac
		;;

	mswin)
		iconvit mswin
		;;

	unix)
		iconvit unix
		;;

	all)
		iconvit mswin
		iconvit unix
		iconvmac
		;;

	*)
		iconvit mswin
		iconvit unix
		iconvmac
		;;
esac