#!/bin/bash

# Script to make the FGSL libraries.
# Exit Codes found in /usr/include/sysexits.h

#set -x


# Function to configure, make and then install the Package - contains Package Specific build configuration

func_configure_make_install () {

    case "${ACC_CONDA_BUILD}" in
        "Y" | "y" | "1" )
            CONDA_BUILD=1
            ;;
    esac

    # Added support for SHARED only library builds, as requested in RT#63875
    CONFIGURE_FLAGS=${SHARED_LIB_CONFIGURE_FLAGS}

    # Fix setting OpenMP configure flag 12-Sep-2022
    [ "${BUILD_OPENMP}" -eq "1" ] && CONFIGURE_FLAGS="${CONFIGURE_FLAGS} --enable-openmp"

    cd ${WORK_DIR}

    if [ ! -e ALREADY_BUILT ] ; then

	if ( [[ "${CONDA_BUILD}" ]] ) ; then
		export GSLLIBDIR=${ACC_CONDA_PATH}/lib
		export GSLINCDIR=${ACC_CONDA_PATH}/include
		echo -e "Using GSL library from conda in ${GSLLIBDIR}\n"
	else
		if [ ${DIST_BUILD} ] ; then
		    GSL_VERSION=$(cat ${DIST_BASE_DIR}/gsl/VERSION | awk ' { print $3 } ')
		else
		    GSL_VERSION=$(cat ${ACC_BASE}/packages/gsl/VERSION | awk ' { print $3 } ')
		fi

		if ( [ -d ${ACC_BASE}/packages ] && [[ "${ACC_BASE}/packages/${BUILD_TYPE}/lib/libgsl*" ]] ) ; then
		    export GSLLIBDIR=${ACC_BASE}/packages/${BUILD_TYPE}/lib
		    export GSLINCDIR=${ACC_BASE}/packages/${BUILD_TYPE}/include
		    echo -e "Using GSL version ${GSL_VERSION} library in ${ACC_BASE}/packages/${BUILD_TYPE}/lib\n"
		elif [ "${OUTPUT_DIR}/lib/libgsl*" ] ; then
		    export GSLLIBDIR=${OUTPUT_DIR}/lib
		    export GSLINCDIR=${OUTPUT_DIR}/include
		    echo -e "Using GSL version ${GSL_VERSION} library in ${OUTPUT_DIR}/lib\n"
		else
		    echo -e "Required GSL version ${GSL_VERSION} not found, exiting...\n"
		    exit 72
		fi
	fi

	export gsl_LIBS="-L${GSLLIBDIR} -lgsl -lgslcblas -lm"
	export gsl_CFLAGS="-I${GSLINCDIR}"
	export PKG_CONFIG_PATH=${GSLLIBDIR}/pkgconfig

	# required for some macOS systems 
	#[ "$(uname -s)" == "Darwin" ] \
	#    && autoreconf -i

	mkdir m4

	autoreconf -i

	./configure \
	    --prefix=${OUTPUT_DIR} \
	    ${CONFIGURE_FLAGS} \
	    "${CONFIG_OPTIONS[@]}" 

	export RETVAL=$?
	[ "${RETVAL}" -eq 0 ] || exit ${RETVAL}

	func_print_compiler_linker_flags

	# Adding ACC_SET_GMAKE_JOBS to build as requested in RT#67548 
	${GMAKE} -j ${ACC_SET_GMAKE_JOBS}
	${GMAKE} install

	export RETVAL=$?
	[ "${RETVAL}" -eq 0 ] || exit ${RETVAL}
    fi

    if [ "${ARGUMENTS[1]}" == "-test" ] ; then 
	echo -e "\nBuilding tests for `echo ${PACKAGE_VERSION}`...\n" 

	export LD_LIBRARY_PATH=${OUTPUT_DIR}/lib:${LD_LIBRARY_PATH}

	${GMAKE} -j ${ACC_SET_GMAKE_JOBS} check

	export RETVAL=$?

	if ( [ -e ${WORK_DIR}/tests/test-suite.log ] && [ ${RETVAL} -eq 0 ] ) ; then
	    echo -e "\nCheck for test logs in: \n\n      ${WORK_DIR}/tests/ \n"
	fi
    fi 

    if ( [ -e ${OUTPUT_DIR}/include/fgsl/fgsl.mod ] && [ ${RETVAL} -eq 0 ] ) ; then
	[ ! -L ${OUTPUT_DIR}/modules/fgsl.mod ] && cd ${OUTPUT_DIR}/modules && ln -s ../include/fgsl/fgsl.mod .
    fi

}


# Function that contains Package Specific files and directories to be removed

func_remove_package () {

    rm -f ${OUTPUT_DIR}/lib/libfgsl*
    rm -f ${OUTPUT_DIR}/lib/pkgconfig/fgsl*
    rm -rf ${OUTPUT_DIR}/include/fgsl
    rm -f ${OUTPUT_DIR}/modules/fgsl.mod
    rm -rf ${OUTPUT_DIR}/share/examples/fgsl
    rm -rf ${OUTPUT_DIR}/share/doc/fgsl
    rm -rf ${BUILD_TYPE}

}