#!/usr/bin/env bash
# vim: set sw=4 sts=4 et tw=0 :

echo -n "/* vim"
echo ": set ro : */"
echo
echo "/* ******************************************************** */"
echo "/* THIS IS A GENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY */"
echo "/* ******************************************************** */"

what_to_make=${1}
shift

include_cc() {
    if [[ "${what_to_make}" == "--source" ]] ; then
        echo
        cat
        echo
    fi
}

include_hh() {
    if [[ "${what_to_make}" == "--header" ]] ; then
        echo
        cat
        echo
    fi
}

use_namespace() {
    if [[ "${what_to_make}" == "--source" ]] ; then
        echo "using namespace $1;"
    fi
}

if ! source ${1} ; then
    echo "source ${1} failed" 1>&2
    exit 7
fi

set | grep '^make_nn_.*() $' | sort -r | \
while read name ; do
    name=${name##make_nn_}
    name=${name%% *}

    if [[ "${what_to_make}" == "--header" ]] ; then
        namespace() {
            a=${1//::/ }
            echo
            for ns in ${a}; do
                echo "${indent}namespace ${ns}"
                echo "${indent}{"
                indent+="    "
            done

            echo "${indent}template <typename>"
            echo "${indent}struct ${name};"
        }

        name() {
            class=$1
            echo
            echo "${indent}template<>"
            echo "${indent}struct ${name}<${class}>"
            echo "${indent}{"
            echo "${indent}    static const char * name;"
            echo "${indent}};"
        }

        make_nn_${name}

        while [[ -n ${indent} ]]; do
            indent=${indent/    }
            echo "${indent}}"
        done

    elif [[ "${what_to_make}" == "--source" ]] ; then
        namespace() {
            ns="${1}::"
        }

        name() {
            class=$1
            class_name=${2:-$1}
            echo "const char * ${ns}${name}<${class}>::name = \"${class_name}\";"
        }

        echo
        make_nn_${name}
    else
        echo "bad argument (expected --header or --source)" 1>&2
        exit 1
    fi
done