// Licensed to the Apache Software Foundation (ASF) under one

// or more contributor license agreements.  See the NOTICE file

// distributed with this work for additional information

// regarding copyright ownership.  The ASF licenses this file

// to you 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 "core/data_type/data_type.h"

#include "core/data_type/define_primitive_type.h"

#include "exprs/aggregate/aggregate_function_topn.h"

#include "exprs/aggregate/helpers.h"

namespace doris {

template <PrimitiveType T>

using ImplArray = AggregateFunctionTopNImplArray<T, false>;

template <PrimitiveType T>

using ImplArrayWithDefault = AggregateFunctionTopNImplArray<T, true>;

using topn_array_creator =

        creator_with_type_list<TYPE_TINYINT, TYPE_SMALLINT, TYPE_INT, TYPE_BIGINT, TYPE_LARGEINT,

                               TYPE_FLOAT, TYPE_DOUBLE, TYPE_DECIMAL32, TYPE_DECIMAL64,

                               TYPE_DECIMAL128I, TYPE_DECIMAL256, TYPE_VARCHAR, TYPE_DATEV2,

                               TYPE_DATETIMEV2, TYPE_TIMESTAMPTZ, TYPE_IPV4, TYPE_IPV6>;

AggregateFunctionPtr create_aggregate_function_topn_array(const std::string& name,

                                                          const DataTypes& argument_types,

                                                          const DataTypePtr& result_type,

                                                          const bool result_is_nullable,

                                                          const AggregateFunctionAttr& attr) {

    bool has_default_param = (argument_types.size() == 3);

    if (has_default_param) {

        return topn_array_creator::create<AggregateFunctionTopNArray, ImplArrayWithDefault>(

                argument_types, result_is_nullable, attr);

    } else {

        return topn_array_creator::create<AggregateFunctionTopNArray, ImplArray>(

                argument_types, result_is_nullable, attr);

    }

}

} // namespace doris