// Copyright (C) 2019-2020 Zilliz. All rights reserved.
//
// 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 "indexbuilder/IndexCreatorBase.h"
#include <string>
#include <memory>
#include <common/CDataType.h>
#include "index/Index.h"
#include "index/ScalarIndex.h"

namespace milvus::indexbuilder {

class ScalarIndexCreator : public IndexCreatorBase {
 public:
    ScalarIndexCreator(DataType data_type,
                       const char* type_params,
                       const char* index_params);

    void
    Build(const milvus::DatasetPtr& dataset) override;

    milvus::BinarySet
    Serialize() override;

    void
    Load(const milvus::BinarySet&) override;

 private:
    std::string
    index_type();

 private:
    index::IndexBasePtr index_ = nullptr;
    Config config_;
    DataType dtype_;
};

using ScalarIndexCreatorPtr = std::unique_ptr<ScalarIndexCreator>;

inline ScalarIndexCreatorPtr
CreateScalarIndex(DataType dtype,
                  const char* type_params,
                  const char* index_params) {
    return std::make_unique<ScalarIndexCreator>(
        dtype, type_params, index_params);
}

}  // namespace milvus::indexbuilder
