// Copyright (c) 2016-2018 Kiwano - Nomango
//
// 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.

#pragma once
#include <kiwano/core/Common.h>

namespace kiwano
{
/**
 * \~chinese
 * @brief DLL库
 */
class KGE_API Library
{
public:
    /// \~chinese
    /// @brief 构造DLL库
    Library();

    /// \~chinese
    /// @brief 构造DLL库
    /// @param lib DLL文件路径
    Library(const String& lib);

    virtual ~Library();

    /// \~chinese
    /// @brief 加载DLL
    /// @param lib DLL文件路径
    bool Load(const String& lib);

    /// \~chinese
    /// @brief 是否有效
    bool IsValid() const;

    /// \~chinese
    /// @brief 释放DLL
    void Free();

    /// \~chinese
    /// @brief 检索指定的DLL中的输出库函数地址
    /// @param proc_name 函数名
    FARPROC GetProcess(const String& proc_name);

    /// \~chinese
    /// @brief 检索指定的DLL中的输出库函数地址
    /// @param proc_name 函数名
    template <typename _Proc>
    inline _Proc GetProcess(const String& proc_name)
    {
        return reinterpret_cast<_Proc>(GetProcess(proc_name));
    }

private:
    HMODULE instance_;
};
}  // namespace kiwano
