#----------------------------------*-sh-*--------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | www.openfoam.com
#    \\/     M anipulation  |
#------------------------------------------------------------------------------
#     Copyright (C) 2019-2021 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
#     This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
#
# File
#     bin/tools/source-bashrc
#
# Description
#     Source user ~/.bashrc and OpenFOAM etc/bashrc.
#     Not normally sourced manually, but from bash with the --rcfile option.
#
#------------------------------------------------------------------------------
# Hard-coded directory path (eg, autoconfig)
projectDir="@PROJECT_DIR@"

if [ -z "$projectDir" ] || [ "${projectDir#@}" != "$projectDir" ]
then
    # Auto-detect location (as per OpenFOAM etc/bashrc)
    # --
    # Assuming this file is $WM_PROJECT_DIR/bin/tools/source-bashrc,
    # the next lines should work when sourced by BASH or ZSH shells.
    # --

    projectDir="${BASH_SOURCE:-${ZSH_NAME:+$0}}"
    if [ -n "$projectDir" ]
    then
        projectDir="$(\cd "$(dirname "$projectDir")"/../.. && \pwd -L)" || \
        unset projectDir
    fi
fi

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

if [ -d "$projectDir" ]
then
    _foamSourceBashEnv="$projectDir/etc/bashrc"
else
    unset _foamSourceBashEnv
fi


# Source the user bashrc first.
# Simply hope that they don't unset/reset _foamSourceBashEnv !!

if [ -f "$HOME/.bashrc" ]
then
    . "$HOME/.bashrc"
fi


# Source the OpenFOAM etc/bashrc

if [ -f "$_foamSourceBashEnv" ]
then
    . "$_foamSourceBashEnv" $FOAM_SETTINGS

    # Avoid further inheritance
    unset FOAM_SETTINGS

    # Some feedback
    if [ -n "$PS1" ] && [ -d "$WM_PROJECT_DIR" ]
    then
        _foam_api="$("$WM_PROJECT_DIR"/bin/foamEtcFile -show-api 2>/dev/null)"
        _foam_patch="$("$WM_PROJECT_DIR"/bin/foamEtcFile -show-patch 2>/dev/null)"
        _foam_build="$("$WM_PROJECT_DIR"/bin/foamEtcFile -show-build 2>/dev/null)"

        if [ "${_foam_patch:-0}" = 0 ]
        then
            unset _foam_patch
        fi
        if [ -n "$_foam_build" ]
        then
            # Everything there - format like binary -help output
            _foam_build="${_foam_build}${_foam_patch:+ (patch=${_foam_patch})}"
            _foam_verinfo="${_foam_api}"
        else
            # Missing build info - combine api and patch info together
            _foam_verinfo="${_foam_api}${_foam_patch:+ patch=${_foam_patch}}"
        fi

        echo "Using: OpenFOAM-$WM_PROJECT_VERSION (${_foam_verinfo}) - visit www.openfoam.com" 1>&2
        if [ -n "$_foam_build" ]
        then
            echo "Build: ${_foam_build}" 1>&2
        fi
        echo "Arch:  $WM_OPTIONS (mpi=$FOAM_MPI)" 1>&2
        # Arch:  LSB;label=32;scalar=64

        ## echo 1>&2

        # Set prompt as reminder that this is a shell session

        # Chalmers likes this one:
        # PS1="openfoam${_foam_api}:"'$(foamPwd)\n\u\$ '

        PS1="openfoam${_foam_api}:"'\w/\n\u\$ '
        unset _foam_api _foam_patch _foam_build _foam_verinfo
    fi
else
    echo "Could not locate OpenFOAM etc/bashrc in '$projectDir'" 1>&2
fi

echo 1>&2
echo "openfoam = $WM_PROJECT_DIR" 1>&2
echo "OpenFOAM shell session - use exit to quit" 1>&2
echo 1>&2

# Cleanup variables (done as final statement for a clean exit code)
unset _foamSourceBashEnv projectDir

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