// 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 "exprs/aggregate/aggregate_function_histogram.h"

#include <fmt/format.h>

#include <glog/logging.h>

#include "core/data_type/data_type.h"

#include "core/data_type/define_primitive_type.h"

#include "exprs/aggregate/factory_helpers.h"

#include "exprs/aggregate/helpers.h"

namespace doris {

#include "common/compile_check_begin.h"

template <typename Data>

using HistogramWithInputParam = AggregateFunctionHistogram<Data, true>;

template <typename Data>

using HistogramNormal = AggregateFunctionHistogram<Data, false>;

AggregateFunctionPtr create_aggregate_function_histogram(const std::string& name,

                                                         const DataTypes& argument_types,

                                                         const DataTypePtr& result_type,

                                                         const bool result_is_nullable,

                                                         const AggregateFunctionAttr& attr) {

    assert_arity_range(name, argument_types, 1, 2);

    using creator =

            creator_with_type_list<TYPE_BOOLEAN, 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>;

    if (argument_types.size() == 2) {

        return creator::create<HistogramWithInputParam, AggregateFunctionHistogramData>(

                argument_types, result_is_nullable, attr);

    } else {

        return creator::create<HistogramNormal, AggregateFunctionHistogramData>(

                argument_types, result_is_nullable, attr);

    }

}

void register_aggregate_function_histogram(AggregateFunctionSimpleFactory& factory) {

    factory.register_function_both("histogram", create_aggregate_function_histogram);

    factory.register_alias("histogram", "hist");

}

} // namespace doris