#!/bin/bash

# Frontend for ejabberd's extract-tr.sh

# How to create template files for a new language:
# NEWLANG=zh
# cp priv/msgs/ejabberd.pot priv/msgs/$NEWLANG.po
# echo \{\"\",\"\"\}. > priv/msgs/$NEWLANG.msg
# make translations

extract_lang_src2pot ()
{
	./tools/extract-tr.sh src deps/xmpp/src > $PO_DIR/ejabberd.pot
}

extract_lang_popot2po ()
{
	LANG_CODE=$1
	PO_PATH=$PO_DIR/$LANG_CODE.po
	POT_PATH=$PO_DIR/$PROJECT.pot

	msgmerge $PO_PATH $POT_PATH >$PO_PATH.translate 2>>$LOG
	mv $PO_PATH.translate $PO_PATH
}

extract_lang_po2msg ()
{
	LANG_CODE=$1
	PO_PATH=$LANG_CODE.po
	MS_PATH=$PO_PATH.ms
	MSGID_PATH=$PO_PATH.msgid
	MSGSTR_PATH=$PO_PATH.msgstr
	MSGS_PATH=$LANG_CODE.msg

	cd $PO_DIR

	# Check PO has correct ~
	# Let's convert to C format so we can use msgfmt
	PO_TEMP=$LANG_CODE.po.temp
	cat $PO_PATH | sed 's/%/perc/g' | sed 's/~/%/g' | sed 's/#:.*/#, c-format/g' >$PO_TEMP
	msgfmt $PO_TEMP --check-format
	result=$?
	rm $PO_TEMP
	if [ $result -ne 0 ] ; then
		exit 1
	fi

	msgattrib $PO_PATH --translated --no-fuzzy --no-obsolete --no-location --no-wrap | grep "^msg" | tail --lines=+3 >$MS_PATH
	grep "^msgid" $PO_PATH.ms | sed 's/^msgid //g' >$MSGID_PATH
	grep "^msgstr" $PO_PATH.ms | sed 's/^msgstr //g' >$MSGSTR_PATH
	echo "%% -*- coding: utf-8 -*-" >$MSGS_PATH
	paste $MSGID_PATH $MSGSTR_PATH --delimiter=, | awk '{print "{" $0 "}."}' | sort -g >>$MSGS_PATH

	rm $MS_PATH
	rm $MSGID_PATH
	rm $MSGSTR_PATH

	mv $MSGS_PATH $MSGS_DIR
}

extract_lang_updateall ()
{
	echo ""
	echo "Generating POT..."
	extract_lang_src2pot

	cd $MSGS_DIR
	echo ""
	echo -e "File Missing (fuzzy) Language     Last translator"
	echo -e "---- ------- ------- --------     ---------------"
	for i in $( ls *.msg ) ; do
                LANG_CODE=${i%.msg}
		echo -n $LANG_CODE | awk '{printf "%-6s", $1 }'

		PO=$PO_DIR/$LANG_CODE.po

		extract_lang_popot2po $LANG_CODE
		extract_lang_po2msg $LANG_CODE

		MISSING=`msgfmt --statistics $PO 2>&1 | awk '{printf "%5s", $4+$7 }'`
		echo -n " $MISSING"

		FUZZY=`msgfmt --statistics $PO 2>&1 | awk '{printf "%7s", $4 }'`
		echo -n " $FUZZY"

		LANGUAGE=`grep "X-Language:" $PO | sed 's/\"X-Language: //g' | sed 's/\\\\n\"//g' | awk '{printf "%-12s", $1}'`
		echo -n " $LANGUAGE"

		LASTAUTH=`grep "Last-Translator" $PO | sed 's/\"Last-Translator: //g' | sed 's/\\\\n\"//g'`
		echo " $LASTAUTH"
	done
	echo ""
	rm messages.mo
	grep -v " done" $LOG
	rm $LOG

	cd ..
}

EJA_DIR=`pwd`
PROJECT=ejabberd
MSGS_DIR=$EJA_DIR/priv/msgs
LOG=/tmp/ejabberd-translate-errors.log
if [ -f $EJA_DIR/deps/ejabberd_po/src/ejabberd.pot ]; then
    PO_DIR=$EJA_DIR/deps/ejabberd_po/src/
else
    if [ -f $EJA_DIR/_build/default/lib/ejabberd_po/src/ejabberd.pot ]; then
        PO_DIR=$EJA_DIR/_build/default/lib/ejabberd_po/src
    else
        echo "Couldn't find the required ejabberd_po repository."
        echo "Run: ./configure --enable-tools; ./rebar get-deps"
        exit 1
    fi
fi
echo "Using PO files found in $PO_DIR."

extract_lang_updateall