/**

 * Copyright (c) 2026 Huawei Technologies Co., Ltd.

 * This program is free software, you can redistribute it and/or modify it under the terms and conditions of

 * CANN Open Software License Agreement Version 2.0 (the "License").

 * Please refer to the License for details. You may not use this file except in compliance with the License.

 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,

 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.

 * See LICENSE in the root of the software repository for the full text of the License.

 */



/*!

 * \file fa_checker.h

 * \brief FAChecker using Composite Pattern - manages all checkers uniformly

 */



#ifndef FLASH_ATTN_FA_CHECKER_H

#define FLASH_ATTN_FA_CHECKER_H



#include <memory>

#include <vector>

#include <functional>

#include "tiling/tiling_api.h"

#include "base_checker.h"



#include "./seq_len_checker.h"

#include "./common_checker.h"

#include "./mask_checker.h"

#include "./metadata_checker.h"

#include "./paged_attention_checker.h"

#include "./sinks_checker.h"

#include "./softmax_lse_checker.h"



namespace optiling {

namespace flash_attn {



class FAChecker {

public:

    FAChecker() = default;

    ~FAChecker() = default;



    ge::graphStatus Init(const FaTilingInfo &faInfo);

    ge::graphStatus Process(const FaTilingInfo &faInfo);



    ge::graphStatus CheckSinglePara(const FaTilingInfo &faInfo);

    ge::graphStatus CheckParaExistence(const FaTilingInfo &faInfo);

    ge::graphStatus CheckFeature(const FaTilingInfo &faInfo);

    ge::graphStatus CheckMultiPara(const FaTilingInfo &faInfo);



private:

    using CheckMethod = std::function<ge::graphStatus(FABaseChecker *, const FaTilingInfo &)>;



    ge::graphStatus RunCheck(const CheckMethod &method, const FaTilingInfo &faInfo);



    void RegisterCheckers();



    std::vector<std::unique_ptr<FABaseChecker>> checkers_;

};



} // namespace flash_attn

} // namespace optiling

#endif // FLASH_ATTN_FA_CHECKER_H