#!/bin/bash

# Based on KDE messages.sh by Thomas Nagy
# Inspired by Makefile.common from coolo
# This script is used to update the .po files.

# To update the translations, you will need a specific gettext 
# patched for kde and a lot of patience, tenacity, luck, time ..

# I guess one should only update the .po files when all .cpp files 
# are generated (after a make or scons)

if [ -z "$KDE_GETTEXT_BIN" ]; then
    if [ -f ./xgettext ] && ./xgettext --help 2>&1 | grep -q extract; then
	KDE_GETTEXT_BIN=.
    elif [ -d /opt/gettext-kde/bin ]; then
	KDE_GETTEXT_BIN=/opt/gettext-kde/bin
    fi
fi
if [ ! -d "$KDE_GETTEXT_BIN" ]; then
    echo 1>&2
    echo "WARNING: Environment variable KDE_GETTEXT_BIN must be set" 1>&2
    echo "such that the KDE patched version of gettext is found in " 1>&2
    echo "KDE_GETTEXT_BIN/." 1>&2
    echo 1>&2
    echo "Falling back to default gettext, but plural translations " 1>&2
    echo "will probably be wrong." 1>&2
    echo 1>&2
    echo "See ftp://ftp.kde.org/devel/gettext-kde/ for the patched gettext." 1>&2
    echo 1>&2
else
    KDE_GETTEXT_PATH=${KDE_GETTEXT_BIN}/
fi

SRCDIR=../src # srcdir is the directory containing the source code
TIPSDIR=../docs/en # tipsdir is the directory containing the tips
DATADIR=../data # datadir is the directory containing fonts/mappings & styles

KDEDIR=`kde-config --prefix`
EXTRACTRC=extractrc # from tdesdk-scripts (on Debian Sarge)
KDEPOT=$KDEDIR/include/kde.pot
if [ ! -f "$KDEPOT" ] && [ -f /usr/include/kde/kde.pot ]; then
    KDEPOT=/usr/include/kde/kde.pot
fi
XGETTEXT="${KDE_GETTEXT_PATH}xgettext -C -ki18n -ktr2i18n -kI18N_NOOP -ktranslate -kaliasLocale -x $KDEPOT "

## check that kde.pot is available
if ! test -e $KDEPOT; then
	echo "$KDEPOT does not exist, there is something wrong with your installation!"
	XGETTEXT="${KDE_GETTEXT_PATH}xgettext -C -ki18n -ktr2i18n -kI18N_NOOP -ktranslate -kaliasLocale "
fi

> rc.cpp

## extract the strings
echo "extracting the strings"

# process the .ui and .rc files
$EXTRACTRC `find $SRCDIR -iname *.rc` >> rc.cpp
$EXTRACTRC `find $SRCDIR -iname *.ui` >> rc.cpp
echo -e 'i18n("_: NAME OF TRANSLATORS\\n"\n"Your names")\ni18n("_: EMAIL OF TRANSLATORS\\n"\n"Your emails")' > $SRCDIR/_translatorinfo.cpp

# process the tips - $SRCDIR is supposed to be where the tips are living
pushd $TIPSDIR; preparetips >tips.cpp; popd

# process the fonts mapping attributes
FONTSDIR=$DATADIR/fonts/mappings
pushd $FONTSDIR
cat *.xml | perl -e 'while (<STDIN>) { if(/(encoding name|origin|copyright|mapped-by|type)\s*=\s*\"(.*)\"/) { print "i18n(\"$2\")\;\n";} }' > fonts.cpp
popd

# process the note head style names
STYLEDIR=$DATADIR/styles
pushd $STYLEDIR
ls *.xml | perl -e 'while (<STDIN>) { if(/(.*)\.xml/) { print "i18n(\"$1\")\;\n";} }' > styles.cpp
popd

# extract the strings
$XGETTEXT `find $SRCDIR \( -name "*.cpp" -o -name "*.h" \)` rc.cpp $TIPSDIR/tips.cpp $FONTSDIR/fonts.cpp $STYLEDIR/styles.cpp -o tmp.pot

# remove the intermediate files
rm -f $TIPSDIR/tips.cpp 
rm -f $FONTSDIR/fonts.cpp 
rm -f $STYLEDIR/styles.cpp
rm -f rc.cpp
rm -f $SRCDIR/_translatorinfo.cpp

## now merge the .po files ..
echo "merging the .po files"

for i in `ls *.po`; do
    echo $i
    msgmerge $i tmp.pot -o $i || exit 1
done

# replacing the old template by the new one
rm -f rosegarden.pot
mv tmp.pot rosegarden.pot

## finished
echo "Done"