/*******************************************************************************
 *
 * MIT License
 *
 * Copyright (c) 2017 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 *******************************************************************************/

#include <miopen/db_path.hpp>
#include <miopen/env.hpp>
#include <miopen/stringutils.hpp>
#include <miopen/expanduser.hpp>

#include <cstdlib>

MIOPEN_DECLARE_ENV_VAR(MIOPEN_SYSTEM_DB_PATH)
MIOPEN_DECLARE_ENV_VAR(MIOPEN_USER_DB_PATH)

namespace miopen {

std::string GetSystemDbPath()
{
    auto p = GetStringEnv(MIOPEN_SYSTEM_DB_PATH{});
    if(p == nullptr)
        return "${MIOPEN_SYSTEM_DB_PATH}";
    else
        return p;
}

namespace {
std::string PrepareUserDbPath()
{
    auto p = GetStringEnv(MIOPEN_USER_DB_PATH{});
    if(p == nullptr)
        p = "${MIOPEN_USER_DB_PATH}";
    return ExpandUser(p);
}
} // namespace

std::string GetUserDbSuffix() { return "${MIOPEN_USER_DB_SUFFIX}"; }

std::string GetSystemFindDbSuffix() { return "${MIOPEN_SYSTEM_FIND_DB_SUFFIX}"; }

const std::string& GetUserDbPath()
{
    static const auto instance = PrepareUserDbPath();
    return instance;
}

} // namespace miopen