#!/bin/sh
#------------------------------------------------------------------------------
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | www.openfoam.com
#    \\/     M anipulation  |
#------------------------------------------------------------------------------
#     Copyright (C) 2024 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
#     This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
#
# Script
#     makeHDF5
#
# Description
#     Build script for HDF5
#
# ----------------------------------------------
# NO USER-CONFIGURABLE SETTINGS WITHIN THIS FILE
#------------------------------------------------------------------------------
# Dynamic library ending (default is .so)
[ "$(uname -s)" = Darwin ] && EXT_SO=.dylib || EXT_SO=.so

# Short-circuit test for an installation
if [ "$1" = "-test" ]
then
    [ "$#" -eq 2 ] || { echo "${0##*/} -test : needs 1 argument"; exit 1; }
    dir="${2%/}" # <- *_ARCH_PATH
    [ -d "$dir/include" ] || exit 2

    package="hdf5"
    libName="hdf5"
    for lib in \
        "$dir/lib/$libName$EXT_SO" \
        "$dir/lib$WM_COMPILER_LIB_ARCH/$libName$EXT_SO" \
        ;
    do
        if [ -r "$lib" ]
        then
            echo "    $package include: $dir/include"
            echo "    $package library: ${lib%/*}"
            exit 0
        fi
    done
    exit 2
fi
#------------------------------------------------------------------------------
if :    # Run from third-party directory
then
    cd "${0%/*}" || exit
    wmakeCheckPwd "$WM_THIRD_PARTY_DIR" 2>/dev/null || {
        echo "Error (${0##*/}) : not located in \$WM_THIRD_PARTY_DIR"
        echo "    Check your OpenFOAM environment and installation"
        exit 1
    }
fi
. "${WM_THIRD_PARTY_DIR:?}"/etc/tools/ThirdPartyFunctions
. "${WM_THIRD_PARTY_DIR:?}"/etc/tools/CMakeFunctions
#------------------------------------------------------------------------------
# Obtain version from OpenFOAM etc/config.sh file:
_foamConfig hdf5

PACKAGE="${hdf5_version:-none}"

# Hint for cmake findMPI
if [ -d "$MPI_ARCH_PATH" ]
then
    export MPI_HOME="$MPI_ARCH_PATH"
fi

#------------------------------------------------------------------------------
printVersions() { listPackageVersions hdf5; exit 0; }
printHelp() {
    cat<<USAGE

Usage: ${0##*/} [OPTION] [HDF5-VERSION]
options:
  -force            Force compilation, even if include/library already exists
  -gcc              Force use of gcc/g++
  -cmake PATH       With cmake from the given path
  -mpi-home PATH    With hint for MPI_HOME
  -DNAME=VALUE      add cmake variable
  -list             List available unpacked source versions
  -help             Display usage help

* Build HDF5
      ${PACKAGE:-[unspecified]}

USAGE
    showDownloadHint hdf5
    exit 0  # Clean exit
}
#------------------------------------------------------------------------------
exportCompiler minimal  # Minimal compiler info for CMake/configure

unset optForce

# Parse options
while [ "$#" -gt 0 ]
do
    case "$1" in
    '') ;;      # Ignore empty
    -h | -help*) printHelp;;
    -list)      printVersions;;
    -gcc)       useGcc  ;;
    -force)     optForce=true ;;

    -cmake)
        [ "$#" -ge 2 ] || die "'$1' option requires an argument"
        CMAKE_PATH="${2%%/}"
        shift
        ;;
    -mpi-home) # mpi with hint
        [ "$#" -ge 2 ] || die "'$1' option requires an argument"
        export MPI_HOME="${2%%/}"
        case "${MPI_HOME:-none}" in (false|none) unset MPI_HOME;; esac
        shift
        ;;

    hdf/* | hdf5/* | sources/hdf* | \
    hdf5[-_][0-9]* | hdf5-git* )
        PACKAGE="${1%%/}"
        ;;
    -D[A-Z]*=* | [A-Z]*=*)  # cmake variables
        addCMakeVariable "$1"
        ;;
    *)
        die "unknown option/argument: '$1'"
        ;;
    esac
    shift
done

if [ -z "$PACKAGE" ]
then
    die "The HDF5 package/version not specified"
elif _foamIsNone "$PACKAGE" || _foamIsSystem "$PACKAGE"
then
    echo "Using none/system (skip ThirdParty build of HDF5)"
    exit 0
fi

# Known build issues for mingw (various things)
case "$WM_COMPILER" in
(Mingw*)
    if [ "$optForce" = true ]
    then
        echo "Warning: hdf5 - likely compilation issues with $WM_COMPILER"
    else
        echo "Skipping hdf5 - likely compilation issues with $WM_COMPILER"
        exit 0
    fi
    ;;
esac

#------------------------------------------------------------------------------
#
# Build HDF5
#   *PACKAGE : name-version of the package
#   *SOURCE  : location of original sources
#   *PREFIX  : installation directory

PKG_SOURCE="$(findSourceDir "$PACKAGE")"
PACKAGE="$(basename "$PACKAGE")"
PKG_PREFIX="$installBASE/$PACKAGE"
export GIT_DIR="$PKG_SOURCE/.git"

: "${FOAM_MPI:=dummy}"

# FUTURE:
#
# Manual installation of parallel libraries
# from libdir to -> $FOAM_EXT_LIBBIN/$FOAM_MPI
#

echo
echo ========================================
echo "Build hdf5 library $PACKAGE for $FOAM_MPI"
echo

# Needs future adjustment
# - for mpi-specific library locations
if [ -z "$optForce" ] \
&& [ -f "$PKG_PREFIX/include/hdf5.h" ] \
&& {
    [ -r "$PKG_PREFIX/lib/libhdf5$EXT_SO" ] \
 || [ -r "$PKG_PREFIX/lib$WM_COMPILER_LIB_ARCH/libhdf5$EXT_SO" ]
}
then
    echo "    HDF5 already built : $PKG_PREFIX"
else
    # CMake options often lag the configure ones
    echo "Starting build: $PACKAGE (using cmake)"
    echo
    (
        PKG_BUILD="$buildBASE/$PACKAGE"
        cd "$PKG_SOURCE" || exit

        applyPatch "$PACKAGE" "$PKG_SOURCE"

        # Remove any existing build folder and recreate
        rm -rf "$PKG_PREFIX"
        rm -rf "$PKG_BUILD"
        mkdir -p "$PKG_BUILD"

        # May not work properly with FOAM_MPI = dummy
        if [ "$FOAM_MPI" != dummy ]
        then
            CC=mpicc
            CXX=mpicxx
        fi

        cmake=$(findCMake)

        # Installs into lib64/
        cd "$PKG_BUILD" && set -x && \
        ${cmake:?} \
            -DCMAKE_INSTALL_PREFIX="$PKG_PREFIX" \
            -DCMAKE_BUILD_TYPE=Release \
            -DHDF5_BUILD_FORTRAN=FALSE \
            -DHDF5_BUILD_TESTING=FALSE \
            -DHDF5_BUILD_STATIC_LIBS=FALSE \
            ${WM_QUIET:+-DCMAKE_RULE_MESSAGES=OFF} \
            "$PKG_SOURCE" \
        && make -j $WM_NCOMPPROCS all \
        && make install \
        && echo "Built: $PACKAGE"
    ) || {
        echo "Error building: $PACKAGE"
        exit 1
    }
fi

# -----------------------------------------------------------------------------