/*******************************************************************************
 * This file is part of the "https://github.com/blackmatov/meta.hpp"
 * For conditions of distribution and use, see copyright notice in LICENSE.md
 * Copyright (C) 2021, by Matvey Cherevko (blackmatov@gmail.com)
 ******************************************************************************/

#include <meta.hpp/meta_class.hpp>
#include <meta.hpp/meta_function.hpp>
#include <meta.hpp/meta_namespace.hpp>
#include <meta.hpp/meta_variable.hpp>

#include "doctest/doctest.hpp"

namespace
{
    class clazz {};
    int func(int a) { return a; }
    int variable{1};
    const int cvariable{2};
}

TEST_CASE("meta/namespace") {
    namespace meta = meta_hpp;

    meta::namespace_ namespace_{"ns"};
    const meta::namespace_& cnamespace_ = namespace_;
    const meta::namespace_info& ns_info = cnamespace_;

    CHECK_FALSE(ns_info.get_class("clazz"));
    CHECK_FALSE(ns_info.get_function("func"));
    CHECK_FALSE(ns_info.get_namespace("ns"));
    CHECK_FALSE(ns_info.get_variable("variable"));
    CHECK_FALSE(ns_info.get_variable("cvariable"));

    namespace_(
        meta::class_<clazz>("clazz"),
        meta::function_<&func>("func"),
        meta::namespace_("ns2"),
        meta::variable_<&variable>("variable"),
        meta::variable_<&cvariable>("cvariable"));

    CHECK(ns_info.get_class("clazz"));
    CHECK(ns_info.get_function("func"));
    CHECK(ns_info.get_namespace("ns2"));
    CHECK(ns_info.get_variable("variable"));
    CHECK(ns_info.get_variable("cvariable"));

    {
        meta::class_info clazz_info = ns_info.get_class("clazz").value();
        CHECK(clazz_info.id() == "clazz");
    }

    {
        meta::function_info clazz_info = ns_info.get_function("func").value();
        CHECK(clazz_info.id() == "func");
    }

    {
        meta::namespace_info namespace_info = ns_info.get_namespace("ns2").value();
        CHECK(namespace_info.id() == "ns2");
    }

    {
        meta::variable_info variable_info = ns_info.get_variable("variable").value();
        CHECK(variable_info.id() == "variable");
    }

    {
        meta::variable_info cvariable_info = ns_info.get_variable("cvariable").value();
        CHECK(cvariable_info.id() == "cvariable");
    }
}

TEST_CASE("meta/namespace/merge") {
    namespace meta = meta_hpp;

    meta::namespace_ namespace_{"ns"};
    const meta::namespace_info& ns_info = namespace_;

    namespace_(
        meta::namespace_{"ns2"}(
            meta::class_<clazz>{"clazz"},
            meta::function_<&func>("func"),
            meta::namespace_{"ns3"},
            meta::variable_<&variable>("variable")
        )
    );

    namespace_(
        meta::namespace_{"ns2"}(
            meta::class_<clazz>{"clazz"},
            meta::function_<&func>("func2"),
            meta::namespace_{"ns3"}(
                meta::namespace_{"ns4"},
                meta::variable_<&variable>("variable2")
            )
        )
    );

    const meta::namespace_info ns2_info = ns_info.get_namespace("ns2").value();
    const meta::namespace_info ns3_info = ns2_info.get_namespace("ns3").value();

    CHECK(ns2_info.get_class("clazz"));
    CHECK(ns2_info.get_function("func"));
    CHECK(ns2_info.get_function("func2"));

    CHECK(ns2_info.get_namespace("ns3"));
    CHECK(ns2_info.get_variable("variable"));

    CHECK(ns3_info.get_namespace("ns4"));
    CHECK(ns3_info.get_variable("variable2"));
}