#! /bin/csh -f

# The system configuration for configure script
set PERLBIN = ""
set PYBIN = ""

if ($PERLBIN == "") then
    if (-x /home/jsoc/bin/linux_x86_64/activeperl) then
        set PERLBIN = "/home/jsoc/bin/linux_x86_64/activeperl"
    else
        set PERLBIN = "perl"
    endif
endif

if ($PYBIN == "") then
    if (-x /home/jsoc/bin/linux_x86_64/activepython) then
        set PYBIN = "/home/jsoc/bin/linux_x86_64/activepython"
    else
        set PYBIN = "python"
    endif
endif

# set up $JSOC_MACHINE
set JSOC_MACHINE = `build/jsoc_machine.csh`
echo "Machine type is $JSOC_MACHINE"
echo ""

set CLEAN = "no"
set PROJCONFIG = ""
set CLEANCMD = "d"
set CFGSERVER = "no"
set CFGSERVERARG = "s"
set CUSTOMDEFSFILE = ""

foreach THEARG ($argv)
    set LITERALSTR = '{ my($argin) = "'${THEARG}'"; my($flagout); $flagout = ($argin =~ /^-(.+)/)[0]; print $flagout; }'
    set FLAG = `$PERLBIN -e "$LITERALSTR"`
    
    if ($FLAG == $CLEANCMD) then
        set CLEAN = "yes"
    else if ($FLAG == $CFGSERVERARG) then
        set CFGSERVER = "yes"
    else if (-e $THEARG) then
        set PROJCONFIG = $THEARG
    endif
end

# Usage:
#   configure [ -c ] [ <project config file> ]

# Backward compatibility - remove the links to the old make files in projconf
if (-d proj) then	 
    cd proj	 
    if (-e configure) then	 
        rm configure	 
    endif	 
    if (-e make_basic.mk) then	 
        rm make_basic.mk	 
    endif	 
    if (-e Rules.mk) then	 
        rm Rules.mk	 
    endif	 
    if (-e target.mk) then	 
        rm target.mk	 
    endif	 
    cd ..	 
endif

    echo -n "Remove links to man pages..."
    if (-e man) then
	rm -rf man
    endif
    echo "done"

    echo -n "Removing links to headers..."
    if (-d base/include) then
	cd base/include
	find . -name "*.h" -exec rm {} \;
	cd ../..

    # Special link from base/drms/apps/serverdefs.h to localization/drmsparams.h
    cd base/drms/apps
    rm serverdefs.h
    cd ../../..

    endif

    if (-d include) then
	cd include
	find . -name "*.h" -exec rm {} \;
        find . -name "drmsparams*" -exec rm {} \;
	cd ..
    endif
    echo "done"

    echo -n "Removing links to scripts..."
    if (-d scripts) then
	cd scripts
        if ($? == 0) then
            find . -type l -exec rm {} \;
        endif
	cd ..
    endif
    echo "done"

    echo -n "Removing links to jsds..."
    if (-d jsds) then
	cd jsds
        if ($? == 0) then
            find . -type l -exec rm {} \;
        endif
	cd ..
    endif
    echo "done"
    echo

    if ($CLEAN == "yes") then
	if (-x base/local/libs/dsds/scripts/rmlinks.csh) then
	    base/local/libs/dsds/scripts/rmlinks.csh
	endif

	if (-x base/local/libs/soi/scripts/rmlinks.csh) then
	    base/local/libs/soi/scripts/rmlinks.csh
	endif
    else
        # Make include directories here, since they are used by multiple script blocks below
        if (!(-d base/include)) then
            mkdir -p base/include
        endif

        if (!(-d include)) then
            mkdir -p include
        endif

	echo "Setting links to man pages..."
	if (-d /home/jsoc/man) then
	    if (!(-e man)) then
		ln -s /home/jsoc/man man
	    endif
	endif
	echo "done"
        echo
	
	echo "Setting links to jsds..."
	if (!(-d jsds)) then
	    mkdir jsds
	endif
	cd jsds
	find ../base \( -name \*.jsd -exec ln -s {} . \; -a -exec echo "  " {} " OK" \; \) -o \( -name \*.jsd -exec echo "  " {} " ERROR - couldn't create link" \; \)
	cd ..
	echo "done"
	echo

	# generate links for DSDS/SOI dynamic libraries - only do this if 
	# user's environment has access to /home/soi/CM
	if (-d /home/soi/CM/include && -d /home/soi/CM/src) then
	    if (-x base/local/libs/dsds/scripts/genlinks.csh) then
		base/local/libs/dsds/scripts/genlinks.csh
	    endif

	    if (-x base/local/libs/soi/scripts/genlinks.csh) then
		base/local/libs/soi/scripts/genlinks.csh
	    endif
	endif

	echo "done"
	echo

        # Site Localization

        # Path to the configuration file - at some point, make this an argument to the configure script
        set LOCALIZATIONDIR = ""
        set RELLOCALIZATIONDIR = ""
        set conflocal = "config.local"

        if (-e $conflocal) then
            set RELLOCALIZATIONDIR = `perl -n -e 'if ($_ =~ /^LOCALIZATIONDIR\s+(.+)/) { print $1; }' $conflocal`
        endif

        if ($LOCALIZATIONDIR == "") then
            set RELLOCALIZATIONDIR = localization
        endif

        # Make the path absoluate
        set LOCALIZATIONDIR = ${PWD}/${RELLOCALIZATIONDIR}

        # Eventually, dump all these generated files into a user-specified location.
        # This script will need to read the config.local file to get the 
        # localization directory. Otherwise, just use JSOC/localization as the default.
        if (!(-d ${LOCALIZATIONDIR})) then
            mkdir ${LOCALIZATIONDIR}
            if ($? != 0) then
                echo "Error creating localization directory."
            endif
        endif

        if (-e ${LOCALIZATIONDIR}/drmsparams.h) then
            rm ${LOCALIZATIONDIR}/drmsparams.h
        endif

        if (-e ${LOCALIZATIONDIR}/drmsparams.mk) then
            rm ${LOCALIZATIONDIR}/drmsparams.mk
        endif

        if (-e ${LOCALIZATIONDIR}/drmsparams.pm) then
            rm ${LOCALIZATIONDIR}/drmsparams.pm
        endif

        if (-e ${LOCALIZATIONDIR}/drmsparams.py) then
            rm ${LOCALIZATIONDIR}/drmsparams.py
        endif


        # Must create the scripts subdirectory before the call to gen_init.csh
        if (!(-d scripts)) then
            mkdir scripts
        endif

        if (!(-e configsdp.txt)) then
            # This is NetDRMS.
            if (!(-e config.local)) then
                echo "Error: config.local not found. If you have a saved version of this"
                echo "       file from a previous installation, you should copy that into"
                echo "       this directory and rerun configure. Otherwise, copy the file"
                echo "       config.local.template to config.local and edit the config.local"
                echo "       file to contain site-appropriate values."
                echo 
                echo "*** IMPORTANT *** The edited config.local will contain site-specific"
                echo "    values that should not be modified during subsequent updates to"
                echo "    NetDRMS. Keep a safe copy of it somewhere outside of the DRMS"
                echo "    directory tree, for example in /usr/local. After each NetDRMS"
                echo "    update, ensure this file is in place."
                exit 1;
            endif
        endif
        
        # We now call localize.py for both Stanford and NetDRMS builds.
        if ($CFGSERVER == "yes") then
            $PYBIN ./localize.py -d ${LOCALIZATIONDIR} -b drmsparams -s
        else
            $PYBIN ./localize.py -d ${LOCALIZATIONDIR} -b drmsparams
        endif

        echo "Setting links to scripts..."
        cd scripts

        # Sums scripts
        find ../base/sums/scripts -mindepth 1 \( -path \*CVS -prune -o -exec ln -s {} . \; -a -exec echo "  " {} " OK" \; \) -o -exec echo "  " {} " ERROR - couldn't create link" \;

        # Util scripts
        find ../base/util/scripts -mindepth 1 \( -path \*CVS -prune -o -exec ln -s {} . \; -a -exec echo "  " {} " OK" \; \) -o -exec echo "  " {} " ERROR - couldn't create link" \;

        # Export scripts
        find ../base/export/scripts -mindepth 1 \( -path \*CVS -prune -o -exec ln -s {} . \; -a -exec echo "  " {} " OK" \; \) -o -exec echo "  " {} " ERROR - couldn't create link" \;

        # DRMS / IDL-interface scripts
        find ../base/drms/scripts -mindepth 1 \( -path \*CVS -prune -o -exec ln -s {} . \; -a -exec echo "  " {} " OK" \; \) -o -exec echo "  " {} " ERROR - couldn't create link" \;

        # Project-specific scripts - these won't show up if you don't have the project source.
        if (-x ${LOCALIZATIONDIR}/configure) then
            ${LOCALIZATIONDIR}/configure
        endif

        cd ..
        echo "done"
        echo

        echo "Setting links to headers..."

        # When localize.py was added, we removed the repository version of serverdefs.h, and we stopped generating JSOC/base/include/localization.h.
        # To support legacy code, we need to make a link from serverdefs.h to ${LOCALIZATIONDIR}/drmsparams.h (the replacement for serverdefs.h
        # at Stanford) and from JSOC/base/include/localization.h to ${LOCALIZATIONDIR}/drmsparams.h (the replacement for localization.h
        # for NetDRMs builds). However, some files are looking for JSOC/base/drms/apps/serverdefs.h (instead of JSOC/base/include, the correct path).
        # If we make a link from JSOC/base/drms/apps/serverdefs.h to ${LOCALIZATIONDIR}/drmsparams.h, then the script below will make links from 
        # JSOC/base/include/serverdefs.h and JSOC/include/serverdefs.h to JSOC/base/drms/apps/serverdefs.h, which then links to ${LOCALIZATIONDIR}/drmsparams.h.
        cd base/drms/apps
            ln -s ../../../${RELLOCALIZATIONDIR}/drmsparams.h serverdefs.h
        cd ../../..

        cd base/include
            ln -s ../../${RELLOCALIZATIONDIR}/drmsparams.h localization.h
        cd ../..

        cd base/include
        find .. -path '../include' -prune -o -name \*.h  \( \( -exec ln -s {} . \; -a -exec echo "  " {} " OK" \; \) -o -exec echo "  " {} " ERROR - couldn't create link" \; \)
        cd ../..

        cd include
        if (-d ../base/include) then
            find ../base/include -name \*.h -exec ln -s {} . \;
        endif

        # ${LOCALIZATIONDIR} is an absolute path
        ln -s ../${RELLOCALIZATIONDIR}/drmsparams.h
        ln -s ../${RELLOCALIZATIONDIR}/drmsparams.pm
        ln -s ../${RELLOCALIZATIONDIR}/drmsparams.py

        cd ..
        echo "done"
        echo

    endif