#!/bin/sh

if [ "$1" = "--help" ] ; then
    echo "Usage: $0 <language>"
fi

language=${1:-nl}

basedir="$(pwd)/$(dirname $0)"
TARGET="./integrated"

cd $TARGET/
[ ! -d ./$language/ ] && exit 1
[ ! -d ./po/ ] && mkdir po/

cd ./$language/
XMLLIST=$(find . -name "*.xml")

cd ./../
echo "Creating .po files for language '$language'..."
for XMLFILE in $XMLLIST ; do
    DIR=$(echo $XMLFILE | sed "s/\/[^/]*$//")
    if [ ! -d $language/$DIR/ ] ; then
        echo "Skipping $DIR; directory does not exist under ./po/"
        continue
    fi
    XML=$(basename $XMLFILE)
    PO=$(basename $XML .xml).$language.po

    echo "Converting translated $DIR/$XML to .po file"
    
    split2po en/$DIR/$XML $language/$DIR/$XML >po/$DIR/$PO
    if [ $? -ne 0 ] ; then
        echo "** Error during conversion."
        continue
    fi

    # Remove strange references created by split2po
    if grep -q "POXML_" po/$DIR/$PO ; then
        echo "   Converting "POXML_" references..."
        cat po/$DIR/$PO | \
            sed "s/!POXML_AMP!/\&/g" | \
            sed "s/        /\\\t/g" | \
            sed "s/&POXML_SPACE;/ /g" | \
            sed "s/&POXML_LINEFEED;/\\\n\"\n      \"/g" | \
            sed "s/&POXML_LT;/</g" | \
            sed "s/&POXML_GT;/>/g" \
            >/tmp/$$.po
        cp /tmp/$$.po po/$DIR/$PO
    fi
    # Check if there are any we don't yet know about
    if grep "POXML_" po/$DIR/$PO ; then
        echo "** Error: file contains unknown "POXML_" references."
    fi

    # Remove spurious msgid's created by split2po (drop last 6 lines)
    if grep "ROLES_OF_TRANSLATORS" po/$DIR/$PO >/dev/null; then
        LINES=$(cat po/$DIR/$PO | wc -l)
        head -n $(($LINES - 6)) po/$DIR/$PO >/tmp/$$.po
        cp /tmp/$$.po po/$DIR/$PO
    fi
done

# Check the results
echo ""
echo "Checking whether translation matches corresponding .pot file..."
for PO in `find po/ -name "*.$language.po"` ; do
    PODIR=$(dirname $PO); POFILE=$(basename $PO ".$language.po")
    if [ -f $PODIR/$POFILE.pot ] ; then
        count_PO=$(grep "^msgid " $PO | wc -l)
        count_POT=$(grep "^msgid " $PODIR/$POFILE.pot | wc -l)
        if [ ! $count_PO = $count_POT ] ; then
            echo "** Warning: translation for $PO has $count_PO strings, while original has $count_POT strings."
        fi
    else
        echo "** Error: Corresponding .pot file not found for $PO."
    fi
done
echo "Done."

# Checking for untranslated strings
echo ""
echo "Checking for untranslated strings in the .po files..."
for PO in `find po/ -name "*.$language.po"` ; do
    echo "Checking $PO..."
    awk -f $basedir/mark_untranslated.awk $PO
done

echo ""
echo "The conversion has finished successfully."
echo "The .po files for $language have been saved in './integrated/po/'."
echo ""
echo "Please check all messages above very carefully."
echo "If any translations are shown to have a different amount of strings than the original,"
echo "you should probably correct the cause of this and run the conversion again."
echo ""
echo "Strings that are shown as 'looking untranslated', this could just be a string that"
echo "does not need translation, but could also indicate parts of the original that really"
echo "are untranslated but are not marked as such."
echo "In that case, you can use the set_untranslated script to mark these strings as"
echo "untranslated (enter 'set_untranslated --help' for usage)."

rm /tmp/$$.po /tmp/$$.xml &>/dev/null
exit 0