#! /bin/sh

## saxon [--b|--sa]? [--catalogs=...]* [--catalog-verbose[=...]]* \
##     [--add-cp=...]* [--cp=...]* [--mem=...]? \
##     [--proxy=[user:password@]host:port]? <original Saxon options>
##
## Order of options is not significant, but the options to be
## forwarded to Saxon must be at the end.  See below for an
## explanation of the options.  Options --catalogs and --proxy
## are mutually exclusive.
##
## Depends on the following environment variables:
##
##   - APACHE_XML_RESOLVER_JAR (if catalogs are used)
##   - FG_JAVA_LIBS
##   - SAXON_SCRIPT_HOME (if different from $HOME, for tilde "~"
##     substitution)

JAVA=/System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home/bin/java

if [[ -f "${FG_JAVA_LIBS}/com/saxonica/saxon9/saxon9sa.jar" ]]; then
    SAXON_JAR="${FG_JAVA_LIBS}/com/saxonica/saxon9/saxon9sa.jar";
else
    SAXON_JAR="${FG_JAVA_LIBS}/com/saxonica/saxon9/saxon9.jar";
fi

if [[ sa.jar = `echo ${SAXON_JAR} | sed 's/.\+[89]\(\(sa\)\?.jar\)/\1/'` ]]; then
    SAXON_CLASS=com.saxonica.Transform;
else
    SAXON_CLASS=net.sf.saxon.Transform;
fi
USE_CAT=false
CATALOG_VERB=1
if [[ -z "$SAXON_SCRIPT_HOME" ]]; then
    MY_HOME=$HOME
else
    MY_HOME=$SAXON_SCRIPT_HOME
fi
JAVA_OPT=
CP_DELIM=":"
MEMORY=512m
PROXY=$FG_PROXY
PROXY_USER=
PROXY_PWD=
PROXY_HOST=
PROXY_PORT=

while echo "$1" | grep -- ^-- >/dev/null 2>&1; do
    case "$1" in
        # XSLT Basic version.
        --b)
            SAXON_CLASS=net.sf.saxon.Transform
            SAXON_JAR="${FG_JAVA_LIBS}/com/saxonica/saxon9/saxon9.jar";;
        # XSLT Schema-Aware version.
        --sa)
            SAXON_CLASS=com.saxonica.Transform
            SAXON_JAR="${FG_JAVA_LIBS}/com/saxonica/saxon9/saxon9sa.jar";;
        # Add XML Catalogs URI resolution, by adding a catalog to the
        # catalog list.  Resolve "~" only on the head of the option.
        # May be repeated.
        --catalogs=*)
            USE_CAT=true
            # Add separator.
            if [[ -n $CATALOGS ]]; then
                CATALOGS="${CATALOGS}${CP_DELIM}"
            fi
            # Resolve "~".
            TMP_CAT=`echo $1 | sed s/^--catalogs=//`
            if echo "$TMP_CAT" | grep -- '^~' >/dev/null 2>&1; then
                TMP_CAT="$MY_HOME"`echo $TMP_CAT | sed s/^~//`;
            fi
            CATALOGS="$CATALOGS$TMP_CAT";;
        # Set the XML Catalogs resolver verbosity.
        --catalog-verbose=*)
            USE_CAT=true
            CATALOG_VERB=`echo $1 | sed s/^--catalog-verbose=//`;;
        # Set the XML Catalogs resolver verbosity to 3.
        --catalog-verbose)
            USE_CAT=true
            CATALOG_VERB=3;;
        # Add some path to the class path.  Resolve "~" only on the
        # head of the option.  May be repeated.
        --add-cp=*)
            # Resolve "~".
            TMP_CP=`echo $1 | sed s/^--add-cp=//`
            if echo "$TMP_CP" | grep -- '^~' >/dev/null 2>&1; then
                TMP_CP="$MY_HOME"`echo $TMP_CP | sed s/^~//`;
            fi
            ADD_CP="$ADD_CP$CP_DELIM$TMP_CP";;
        # Set the class path.  Resolve "~" only on the head of the
        # option.  May be repeated.
        --cp=*)
            # Resolve "~".
            TMP_CP=`echo $1 | sed s/^--cp=//`
            if echo "$TMP_CP" | grep -- '^~' >/dev/null 2>&1; then
                TMP_CP="$MY_HOME"`echo $TMP_CP | sed s/^~//`;
            fi
            CP="${CP}${CP_DELIM}${TMP_CP}";;
        # The memory space to give to the JVM
        --mem=*)
            MEMORY=$1;;
        # Add support for --proxy=user:password@host:port (in fgeorges.jar)
        --proxy=*)
            # TODO: Check the format of $1
            PROXY=`echo $1 | sed "s/^--proxy=\(.*\)$/\1/"`;;
        # Additional option for the JVM        
        --java=*)
            JAVA_OPT="$JAVA_OPT `echo $1 | sed s/^--java=//`";;
        # Unknown option!
        --*)
            echo "Unknown option: $1" 1>&2
            exit 1;;
    esac
    shift;
done

if [[ -z "$CP" ]]; then
    CP="$SAXON_JAR"
    for jar in ${FG_JAVA_LIBS}/com/saxonica/saxon9/saxon9*-*.jar; do
        CP="${CP}${CP_DELIM}${jar}";
    done
fi

if [[ "$SAXON_CLASS" = com.saxonica.Transform ]]; then
    CP="${CP}${CP_DELIM}${FG_JAVA_LIBS}/com/saxonica/saxon9/"
fi

if [[ "$USE_CAT" = true ]]; then
    CP="${CP}${CP_DELIM}${APACHE_XML_RESOLVER_JAR}"
fi

if [[ -n "$FGEORGES_JAR" ]]; then
    CP="${CP}${CP_DELIM}${FGEORGES_JAR}"
fi

CP="${CP}${ADD_CP}"

SAXON_OPT=

if [[ "$USE_CAT" = true ]]; then
    JAVA_OPT="$JAVA_OPT -Dxml.catalog.files=$CATALOGS -Dxml.catalog.verbosity=$CATALOG_VERB"
    SAXON_OPT="$SAXON_OPT -r org.apache.xml.resolver.tools.CatalogResolver -x org.apache.xml.resolver.tools.ResolvingXMLReader -y org.apache.xml.resolver.tools.ResolvingXMLReader"
fi

# TODO: Check the format of the PROXY value
if [[ -n "$PROXY" ]]; then
    PROXY_USER=`echo $PROXY | sed "s/^\(\(.*\):\(.*\)@\)\?\(.*\):\([0-9]*\)$/\2/"`
    PROXY_PWD=`echo $PROXY | sed "s/^\(\(.*\):\(.*\)@\)\?\(.*\):\([0-9]*\)$/\3/"`
    PROXY_HOST=`echo $PROXY | sed "s/^\(\(.*\):\(.*\)@\)\?\(.*\):\([0-9]*\)$/\4/"`
    PROXY_PORT=`echo $PROXY | sed "s/^\(\(.*\):\(.*\)@\)\?\(.*\):\([0-9]*\)$/\5/"`
fi

# TODO: Try to solve this problem.
if [[ "$USE_CAT" = true && -n "$PROXY_HOST" ]]; then
    echo "Impossible to use --catalogs with --proxy (both use Saxon's -r option)" 1>&2
    exit 1
fi

if [[ -n "$PROXY_HOST" ]]; then
    JAVA_OPT="$JAVA_OPT -Dhttp.proxyHost=$PROXY_HOST -Dhttp.proxyPort=$PROXY_PORT"
    JAVA_OPT="$JAVA_OPT -Dhttps.proxyHost=$PROXY_HOST -Dhttps.proxyPort=$PROXY_PORT"
#    SAXON_OPT="$SAXON_OPT -r org.fgeorges.saxon.HttpProxyUriResolver"
fi

if [[ -n "$PROXY_USER" ]]; then
    JAVA_OPT="$JAVA_OPT -Dfgeorges.httpProxyUser=$PROXY_USER -Dfgeorges.httpProxyPwd=$PROXY_PWD"
    SAXON_OPT="$SAXON_OPT -r org.fgeorges.saxon.HttpProxyUriResolver"
fi

echo Using ${SAXON_CLASS}... 1>&2

# echo "$JAVA" "-Xmx$MEMORY" \
#     -cp "$CP" \
#     $JAVA_OPT \
#     $SAXON_CLASS \
#     $SAXON_OPT \
#     "$@" 1>&2

"$JAVA" "-Xmx$MEMORY" \
    -cp "$CP" \
    $JAVA_OPT \
    $SAXON_CLASS \
    $SAXON_OPT \
    "$@"