#!/bin/sh
#------------------------------------------------------------------------------
# =========                 |
# \\      /  F ield         | foam-extend: Open Source CFD
#  \\    /   O peration     | Version:     4.0
#   \\  /    A nd           | Web:         http://www.foam-extend.org
#    \\/     M anipulation  | For copyright notice see file Copyright
#-------------------------------------------------------------------------------
# License
#     This file is part of foam-extend.
#
#     foam-extend is free software: you can redistribute it and/or modify it
#     under the terms of the GNU General Public License as published by the
#     Free Software Foundation, either version 3 of the License, or (at your
#     option) any later version.
#
#     foam-extend is distributed in the hope that it will be useful, but
#     WITHOUT ANY WARRANTY; without even the implied warranty of
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
#     General Public License for more details.
#
#     You should have received a copy of the GNU General Public License
#     along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.
#
# Script
#     foamNewTemplate
#
# Description
#     Create a new standard OpenFOAM templated source file
#
#------------------------------------------------------------------------------
Script=${0##*/}
Template="$WM_PROJECT_DIR/etc/codeTemplates/template/_TemplateTemplate"

usage() {
    while [ "$#" -ge 1 ]; do echo "$1"; shift; done
    cat<<USAGE

Usage: $Script [OPTION] <type> <ClassName> <Template arguments...>
options:
  -help             print the usage

* create a new standard OpenFOAM source file for templated classes

type: (C|H|I|IO)

A ClassName starting with '-' will simply display the template

USAGE
    exit 1
}

# this implicitly covers a lone -help
[ "$#" -gt 1 ] || usage


className="$2"
unset Type printOpt

# for a className starting with '-' simply display the code
if [ "${2#-}" != "${2}" ]
then
    printOpt=true
fi


case "$1" in
(-h | -help)
    usage
    ;;
(C|H)
    Type=".$1"
    ;;
(I)
    Type="$1.H"
    ;;
(IO)
    Type="$1.C"
    ;;
*)
    usage "unknown type '$1'"
    ;;
esac


if [ "${printOpt:-false}" = true ]
then
    [ "$#" -eq 2 ] || usage "wrong number of arguments"
    shift 2

    cat $Template$Type

else

    [ "$#" -ge 3 ] || usage "wrong number of arguments"
    shift 2

    fileName="$className$Type"

    echo "$Script: Creating new template interface file $fileName"
    if [ -e "$fileName" ]
    then
        echo "   Error: file exists"
        exit 1
    fi


    # process class name
    sed -e "s/CLASSNAME/$className/g" $Template$Type > $fileName.1


    # process remaining (template) arguments
    for tArg
    do
        sed -e "s/TemplateClassArgument/class $tArg, TemplateClassArgument/g" \
            -e "s/TemplateArgument/$tArg, TemplateArgument/g" \
            $fileName.1 > $fileName.2

        mv $fileName.2 $fileName.1
    done


    # remove remaining ", Template .."
    sed -e "s/, TemplateClassArgument//g" \
        -e "s/, TemplateArgument//g" \
        $fileName.1 > $fileName

    rm $fileName.1
fi
#------------------------------------------------------------------------------