// Copyright (c) 2019 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.

#include "reverse_sequence_kernel_ref.h"
#include "kernel_selector_utils.h"
#include <string>
#include <vector>

namespace kernel_selector {
ParamsKey ReverseSequenceKernelRef::GetSupportedKey() const {
    ParamsKey k;
    k.EnableInputDataType(Datatype::F16);
    k.EnableInputDataType(Datatype::F32);
    k.EnableOutputDataType(Datatype::F16);
    k.EnableOutputDataType(Datatype::F32);
    k.EnableAllInputLayout();
    k.EnableAllOutputLayout();
    k.EnableTensorOffset();
    k.EnableTensorPitches();
    k.EnableBatching();
    k.EnableDifferentTypes();
    return k;
}

CommonDispatchData ReverseSequenceKernelRef::SetDefault(const reverse_sequence_params& params,
                                                        const optional_params&) const {
    CommonDispatchData runInfo;

    std::vector<size_t> global = {params.output.Batch().v,
                                  params.output.Feature().v,
                                  params.output.Y().v * params.output.X().v};

    auto local = GetOptimalLocalWorkGroupSizes(global, params.engineInfo);

    runInfo.gws0 = global[0];
    runInfo.gws1 = global[1];
    runInfo.gws2 = global[2];

    runInfo.lws0 = local[0];
    runInfo.lws1 = local[1];
    runInfo.lws2 = local[2];

    return runInfo;
}

JitConstants ReverseSequenceKernelRef::GetJitConstants(const reverse_sequence_params& params) const {
    JitConstants jit = MakeBaseParamsJitConstants(params);

    jit.AddConstant(MakeJitConstant("SEQ_AXIS", params.seq_axis));
    jit.AddConstant(MakeJitConstant("BATCH_AXIS", params.batch_axis));

    return jit;
}

KernelsData ReverseSequenceKernelRef::GetKernelsData(const Params& params, const optional_params& options) const {
    KernelData kd = KernelData::Default<reverse_sequence_params>(params);
    reverse_sequence_params& newParams = *static_cast<reverse_sequence_params*>(kd.params.get());

    assert(params.GetType() == KernelType::REVERSE_SEQUENCE);

    auto runInfo = SetDefault(newParams, options);
    auto entry_point = GetEntryPoint(kernelName, newParams.layerID, options);
    auto cldnn_jit = GetJitConstants(newParams);
    std::string jit = CreateJit(kernelName, cldnn_jit, entry_point);

    auto& kernel = kd.kernels[0];

    FillCLKernelData(kernel, runInfo, params.engineInfo, kernelName, jit, entry_point, "", false, false, 2);

    kd.estimatedTime = DONT_USE_IF_HAVE_SOMETHING_ELSE;

    return {kd};
}
}  // namespace kernel_selector
