#!/bin/sh

function usage()
{
    echo "$0 <file1> <file2> [xmlfile]"
}

function extract()
{
    # First unzip all
    mkdir -p $2
    unzip $1 -d $2 >/dev/null 2>&1

    # Then convert the XML files to PYX
    find $2 -type f | while read F
    do
        mime=`file -b --mime-type $F`
        if [ "z$mime" = "zapplication/xml" ]
        then
            python `dirname $0`/xml2pyx.py $F $F.pyx
            mv $F.pyx $F
        fi
    done
}

if [ $# != 2 -a $# != 3 ]
then
    usage
    exit 1
fi

FILE1=$1
FILE2=$2

TMP=/tmp/ooxmldiff

# Extract both files
TMP1=$TMP/`basename $FILE1`1
extract $FILE1 $TMP1

TMP2=$TMP/`basename $FILE2`2
extract $FILE2 $TMP2

if [ $# == 3 ]
then
    TMP1=$TMP1$3
    TMP2=$TMP2$3
    diff -u $TMP1 $TMP2
else
    diff -ru $TMP1 $TMP2
fi

# Clean up the whole place
rm -r $TMP

exit 0