#----------------------------------*-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

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

_com_openfoam_projectDir="$projectDir"
if [ -d "$_com_openfoam_projectDir" ]
then
    _com_openfoam_bashrcFile="${_com_openfoam_projectDir}/etc/bashrc"
else
    unset _com_openfoam_bashrcFile
fi


# Source the user bashrc first. Improbable they use the following variables:
# * _com_openfoam_bashrcFile
# * _com_openfoam_projectDir

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


# Source the OpenFOAM etc/bashrc

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

    # Avoid further inheritance
    unset FOAM_SETTINGS
else
    echo "Missing OpenFOAM etc/bashrc in '${_com_openfoam_projectDir}'" 1>&2
fi
unset _com_openfoam_bashrcFile _com_openfoam_projectDir


# Welcome banner - format somewhat like Ubuntu welcome
#----
## Welcome to Ubuntu VER (GNU/Linux ... x86_64)
##
## * Documentation:  ...
#----

if [ -n "$PS1" ]  ## Interactive
then
    if [ -d "$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)"

        unset _foam_arch1
        case "$WM_OPTIONS" in  # Or WM_LABEL_SIZE?
        (*Int32*) _foam_arch1="label=32" ;;
        (*Int64*) _foam_arch1="label=64" ;;
        esac

        unset _foam_arch2
        case "$WM_OPTIONS" in  # Or WM_PRECISION_OPTION?
        (*SPDPInt*) _foam_arch2="scalar=32;solveScalar=64" ;;
        (*SPInt*)   _foam_arch2="scalar=32" ;;
        (*DPInt*)   _foam_arch2="scalar=64" ;;
        esac

        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 "openfoam = $WM_PROJECT_DIR" 1>&2
        echo 1>&2
        echo " * Using:     OpenFOAM-$WM_PROJECT_VERSION (${_foam_verinfo}) - visit www.openfoam.com" 1>&2
        if [ -n "$_foam_build" ]
        then
            echo " * Build:     ${_foam_build}" 1>&2
        fi
        # Arch:   LSB;label=32;scalar=64
        echo " * Arch:      $_foam_arch1;$_foam_arch2" 1>&2
        echo " * Platform:  $WM_OPTIONS (mpi=$FOAM_MPI)" 1>&2
        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_arch1 _foam_arch2
        unset _foam_api _foam_patch _foam_build _foam_verinfo
    else
        # Adjust prompt if not found - reminder that it is a shell session
        PS1="openfoam(not-found):"'\w/\n\u\$ '
    fi

    echo "OpenFOAM shell session - use 'exit' to quit" 1>&2
    echo 1>&2
fi

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

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