/*
// Copyright (c) 2016 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
*/

#pragma once

#include "weight_bias_kernel_base.h"
#include "actual_kernels/convolution/convolution_params.h"
#include "actual_kernels/eltwise/eltwise_kernel_base.h"

namespace kernel_selector 
{
    ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    // convolution_params
    ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    struct fused_conv_eltwise_params : public weight_bias_params
    {
        fused_conv_eltwise_params() : weight_bias_params(KernelType::FUSED_CONV_ELTWISE) {}

        struct conv_data
        {
            uSize    filterSize;
            uSize    stride;
            uSize    dilation;
            uSize    padding;
            uint32_t split = 1;
            bool     depthwise_separable_opt = false;
            bool     transposed = false;
            bool     int8_quantization = false;
            bool     output_calibration = false;
            bool     local_convolution = false;
            float    input_quantization_factor = 1.0f;
            float    output_quantization_factor = 1.0f;
            MultiDataTensor weights_quantization_factors;
            MultiDataTensor output_calibration_factors;
        } conv;

        struct eltw_data
        {
            std::vector<eltwise_params::Node> operations;
            std::vector<float> coefficients;
            std::vector<eltwise_params::UpdateInputData> updateInputIds;
            std::vector<uSize> stride;

            bool  layoutBased = false;
            bool  int8_quantization = false;
            bool  output_calibration = false;
            float output_quantization_factor = 1.0f;

            MultiDataTensor output_calibration_factors;

            base_activation_params activation;
        } eltw;

        bool second_input_in_output = false;

        virtual std::string to_string() const override;
        virtual ParamsKey GetParamsKey() const override;
    };

    ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    // convolution_optional_params
    ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    struct fused_conv_eltwise_optional_params : weight_bias_optional_params
    {
        fused_conv_eltwise_optional_params() : weight_bias_optional_params(KernelType::FUSED_CONV_ELTWISE) {}
    };

    ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    // ConvolutionKernelBase
    ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    class fused_conv_eltwise_kernel_base : public WeightBiasKernelBase
    {
    public:
        using WeightBiasKernelBase::WeightBiasKernelBase;
        virtual ~fused_conv_eltwise_kernel_base() {}

        struct DispatchData : public CommonDispatchData
        {
            struct CLDNNStyle
            {
                size_t blockWidth, blockHeight; // used for kernels processing blocks
                size_t prefetch;
                size_t inputBlockArraySize;     // Number of elements in array of UNIT_TYPE that must be specified in kernel to store/cache input block.
                size_t inputBlockWidth;         // Number of elements in X dimension stored/cached in input block.
            };

            struct GEMMStyle
            {
                size_t subBlockDimM;
                size_t subBlockDimK;
                size_t subBlockDimN;
                size_t globalWorkSizeDX;
                size_t globalWorkSizeDY;
                size_t globalWorkSizeDZ;
            };

            union
            {
                CLDNNStyle cldnnStyle;
                GEMMStyle  gemmStyle;
            };
        };
        
        std::string GetAutoTuneOptions(int autoTuneIndex) const;
        std::vector<std::string> autoTuneOptions = { DEFAULT, NO_PRERA_SCH, AGE_BASED };
        virtual KernelsData GetKernelsDataForAutoTune(const Params& params, const optional_params& options) const override;
        virtual KernelsData GetTunedKernelsDataByIndex(const Params& params, const optional_params& options, int autoTuneIndex = -1) const override;
    
    protected:
        virtual std::vector<WeightsLayout> GetSupportedWeightLayouts(const fused_conv_eltwise_params&) const = 0;
        virtual std::string GetKernelName(const fused_conv_eltwise_params&) const { return kernelName; }
        virtual bool NeedPaddedInput() const { return false; }
        virtual bool Validate(const Params& p, const optional_params& o) const override;
        virtual JitConstants GetJitConstants(const fused_conv_eltwise_params& params, const DispatchData& kd) const;
        virtual DispatchData SetDefault(const fused_conv_eltwise_params& params, int autoTuneIndex = -1) const;
        static bool CheckWorkGroups(const DispatchData&);
        static bool CheckPitchForSplitOnly(const fused_conv_eltwise_params& params);
        KernelsData GetCommonKernelsData(const Params& params, const optional_params& options, const std::string exeMode = DEFAULT, int autoTuneIndex = -1) const;
    };

    bool FusedConvolutionEltwiseCheckInput(const Params& p, const optional_params& o);
    bool CheckConvolutionPaddedInputDesc(const fused_conv_eltwise_params& params, const DataTensor& reqDesc);
    bool CovolutionUpdateInputParams(fused_conv_eltwise_params& params);

}
