//
// Copyright (c) 2019-2021 Ruben Perez Hidalgo (rubenperez038 at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//

#include "metadata_validator.hpp"
#include <boost/test/unit_test.hpp>

using namespace boost::mysql::test;


#define MYSQL_TEST_FLAG_GETTER_NAME_ENTRY(getter) \
    { #getter, &boost::mysql::field_metadata::getter }

static struct flag_entry
{
    const char* name;
    meta_validator::flag_getter getter;
} flag_names [] = {
    MYSQL_TEST_FLAG_GETTER_NAME_ENTRY(is_not_null),
    MYSQL_TEST_FLAG_GETTER_NAME_ENTRY(is_primary_key),
    MYSQL_TEST_FLAG_GETTER_NAME_ENTRY(is_unique_key),
    MYSQL_TEST_FLAG_GETTER_NAME_ENTRY(is_multiple_key),
    MYSQL_TEST_FLAG_GETTER_NAME_ENTRY(is_unsigned),
    MYSQL_TEST_FLAG_GETTER_NAME_ENTRY(is_zerofill),
    MYSQL_TEST_FLAG_GETTER_NAME_ENTRY(is_auto_increment),
    MYSQL_TEST_FLAG_GETTER_NAME_ENTRY(has_no_default_value),
    MYSQL_TEST_FLAG_GETTER_NAME_ENTRY(is_set_to_now_on_update)
};

BOOST_TEST_DONT_PRINT_LOG_VALUE(std::vector<flag_entry>::iterator)

static bool contains(
    meta_validator::flag_getter flag,
    const std::vector<meta_validator::flag_getter>& flagvec
)
{
    return std::find(flagvec.begin(), flagvec.end(), flag) != flagvec.end();
}

void meta_validator::validate(
    const field_metadata& value
) const
{
    // Fixed fields
    BOOST_TEST(value.database() == "boost_mysql_integtests");
    BOOST_TEST(value.table() == table_);
    BOOST_TEST(value.original_table() == org_table_);
    BOOST_TEST(value.field_name() == field_);
    BOOST_TEST(value.original_field_name() == org_field_);
    BOOST_TEST(value.column_length() > 0u);
    BOOST_TEST(value.type() == type_);
    BOOST_TEST(value.decimals() == decimals_);

    // Flags
    std::vector<flag_entry> all_flags (std::begin(flag_names), std::end(flag_names));

    for (flag_getter true_flag: flags_)
    {
        auto it = std::find_if(
            all_flags.begin(),
            all_flags.end(),
            [true_flag](const flag_entry& entry) { return entry.getter == true_flag; }
        );
        BOOST_TEST_REQUIRE(it != all_flags.end()); // no repeated flag
        BOOST_TEST_REQUIRE(!contains(true_flag, ignore_flags_)); // ignore flags cannot be set to true
        BOOST_TEST((value.*true_flag)(), it->name);
        all_flags.erase(it);
    }

    for (const auto& entry: all_flags)
    {
        if (!contains(entry.getter, ignore_flags_))
        {
            BOOST_TEST(!(value.*entry.getter)(), entry.name);
        }
    }
}

void boost::mysql::test::validate_meta(
    const std::vector<field_metadata>& actual,
    const std::vector<meta_validator>& expected
)
{
    BOOST_TEST_REQUIRE(actual.size() == expected.size());
    for (std::size_t i = 0; i < actual.size(); ++i)
    {
        expected[i].validate(actual[i]);
    }
}