// Copyright (C) 2018-2020 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
//

#include <vpu/frontend/frontend.hpp>

#include <vector>
#include <unordered_set>
#include <memory>
#include <set>

namespace vpu {

namespace {

class InterpStage final : public StageNode {
public:
    using StageNode::StageNode;

private:
    StagePtr cloneImpl() const override {
        return std::make_shared<InterpStage>(*this);
    }

    void propagateDataOrderImpl(StageDataInfo<DimsOrder>& orderInfo) override {
        auto input = inputEdge(0)->input();

        orderInfo.setOutput(outputEdge(0), input->desc().dimsOrder());
    }

    void getDataStridesRequirementsImpl(StageDataInfo<StridesRequirement>& stridesInfo) override {
    }

    void finalizeDataLayoutImpl() override {
    }

    void getBatchSupportInfoImpl(StageDataInfo<BatchSupport>& batchInfo) override {
        batchInfo.setInput(inputEdge(0), BatchSupport::Split);
        batchInfo.setOutput(outputEdge(0), BatchSupport::Split);
    }

    void initialCheckImpl() const override {
        assertInputsOutputsTypes(this, {{DataType::FP16}}, {{DataType::FP16}});
    }

    void serializeParamsImpl(BlobSerializer& serializer) const override {
        auto align_corners = attrs().get<bool>("align_corners");

        serializer.append(static_cast<int32_t>(align_corners));
    }

    void serializeDataImpl(BlobSerializer& serializer) const override {
        auto input = inputEdge(0)->input();
        auto output = outputEdge(0)->output();

        input->serializeBuffer(serializer);
        output->serializeBuffer(serializer);
    }
};

}  // namespace

void FrontEnd::parseInterp(const Model& model, const ie::CNNLayerPtr& layer, const DataVector& inputs, const DataVector& outputs) const {
    IE_ASSERT(inputs.size() == 1);
    IE_ASSERT(outputs.size() == 1);

    auto stage = model->addNewStage<InterpStage>(layer->name, StageType::Interp, layer, inputs, outputs);
    stage->attrs().set<bool>("align_corners", layer->GetParamAsInt("align_corners", 0));
}

}  // namespace vpu
