## Function used to parse through the command-line arguments.
parse_cmdline_args ()
{
    # If command-line arguments were provided, parse them.
    #
    while [ $# -gt 0 ]; do
        # -tempdir flag was used to specify BIFF_install_temp_folder
        #
        if [ $1 = "-tempdir" ]; then
            shift
            # Remove any trailing directory separators
            BIFF_install_temp_folder=`echo "$1" | sed 's/\/*$//'`
            shift
        # -ui flag was used to specify BIFF_installer_ui
        #
        elif [ $1 = "-ui" ]; then
            shift
            # Set the installer UI
            if [ $1 = "console" ]; then
                BIFF_installer_ui="console"
            elif [ $1 = "swing" ]; then
                BIFF_installer_ui="swing"
            elif [ $1 = "silent" ]; then
                BIFF_installer_ui="silent"
            else
                #do nothing (use default setting)
                echo "Warning: Unrecognized installer UI mode: "$1
                echo "Using default installer UI instead (${BIFF_installer_ui})"
            fi
            shift
        # if an invalid flag was provided,  show a warning message
        else
            echo "Unrecognized flag: $1"
            shift
            shift
        fi
    done

} # parse_cmdline_args

# - :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
# -  End of Function Definition Section
# - :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

# - Set the installer UI to console by default
BIFF_installer_ui="console"
# - If the $DISPLAY variable is set, set the installer UI to swing (GUI)
if [ ! "${DISPLAY}" = "" ]; then
    BIFF_installer_ui="swing"
fi

# - :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
# -  Read the command line arguments
# - :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
parse_cmdline_args $*
# - Ask the user if they wish to resume an unfinished installation
if [ -f INSTALLER.ERROR ]; then
    echo Previous installation did not complete.
    echo [r]esume from failure point, [s]tart over from the beginning, or [q]uit? r/s/q:
    read INPUT
    if [ "$INPUT" = "q" ]; then
        exit 0;
    fi
    if [ "$INPUT" = "r" ]; then
        if test ! -f "installer.properties.orig" ; then
            cp installer.properties installer.properties.orig
        fi
        cp installer.properties.cache installer.properties
    fi
    if [ "$INPUT" = "s" ]; then
        cp installer.properties.orig installer.properties
    fi
fi

# - :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
# -  Script actions go here
# - :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

echo "Please wait while the installation tool is starting up..."
if [ "${JAVA_HOME}" = "" ]; then
    echo "ERROR: JAVA_HOME environment variable needs to be set to run this application"
else
    # - Update PATH variable to use the JVM stored at JAVA_HOME as the 1st available JVM
    PATH=${JAVA_HOME}/bin:${PATH}
    export PATH
    if [ "${BIFF_install_temp_folder}" = "" ]; then
        ${JAVA_HOME}/bin/java -jar install.jar -i ${BIFF_installer_ui}
    else
        if [ -d $BIFF_install_temp_folder ]; then
            echo "Installer temporary disk space location is now: ${BIFF_install_temp_folder}"
            ${JAVA_HOME}/bin/java -Dlax.nl.env.iatempdir=${BIFF_install_temp_folder} -jar install.jar -i ${BIFF_installer_ui}
        else
            echo "ERROR: -tempdir must define an existing directory"
        fi
    fi
fi
# - cleanup installer temp dir
if [ -f cleanup ]; then
    mv cleanup cleanup.sh
    chmod 744 cleanup.sh
    ./cleanup.sh
    rm ./cleanup.sh
fi
# - restore original installer properties on successful installation
if [ ! -f INSTALLER.ERROR ]; then
    if test  -f "installer.properties.orig" ; then
        cp installer.properties.orig installer.properties
    fi
fi