// 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.

#pragma once

#include "core/block/block.h"

#include "exec/operator/exchange_sink_operator.h"

#include "exec/partitioner/partitioner.h"

#include "exec/sink/vrow_distribution.h"

#include "exec/sink/vtablet_block_convertor.h"

#include "exec/sink/vtablet_finder.h"

#include "runtime/runtime_state.h"

#include "storage/tablet_info.h"

namespace doris {

#include "common/compile_check_begin.h"

class TabletSinkHashPartitioner final : public PartitionerBase {

public:

    TabletSinkHashPartitioner(uint32_t partition_count, int64_t txn_id,

                              TOlapTableSchemaParam tablet_sink_schema,

                              TOlapTablePartitionParam tablet_sink_partition,

                              TOlapTableLocationParam tablet_sink_location,

                              const TTupleId& tablet_sink_tuple_id,

                              ExchangeSinkLocalState* local_state);

    ~TabletSinkHashPartitioner() override = default;

    Status init(const std::vector<TExpr>& texprs) override;

    Status prepare(RuntimeState* state, const RowDescriptor& row_desc) override;

    Status open(RuntimeState* state) override;

    Status do_partitioning(RuntimeState* state, Block* block) const override;

    // block to create new partition by RPC. return batched data to create.

    Status try_cut_in_line(Block& prior_block) const;

    void finish_cut_in_line() const { _row_distribution._deal_batched = false; }

    void mark_last_block() const { _row_distribution._deal_batched = true; }

    const std::vector<HashValType>& get_channel_ids() const override { return _hash_vals; }

    const std::vector<bool>& get_skipped() const { return _skipped; }

    Status clone(RuntimeState* state, std::unique_ptr<PartitionerBase>& partitioner) override;

    Status close(RuntimeState* state) override;

private:

    static Status empty_callback_function(void* sender, TCreatePartitionResult* result) {

        return Status::OK();

    }

    const int64_t _txn_id = -1;

    const TOlapTableSchemaParam _tablet_sink_schema;

    const TOlapTablePartitionParam _tablet_sink_partition;

    const TOlapTableLocationParam _tablet_sink_location;

    const TTupleId _tablet_sink_tuple_id;

    mutable ExchangeSinkLocalState* _local_state;

    mutable OlapTableLocationParam* _location = nullptr;

    mutable VRowDistribution _row_distribution;

    mutable VExprContextSPtrs _tablet_sink_expr_ctxs;

    mutable std::unique_ptr<VOlapTablePartitionParam> _vpartition = nullptr;

    mutable std::unique_ptr<OlapTabletFinder> _tablet_finder = nullptr;

    mutable std::shared_ptr<OlapTableSchemaParam> _schema = nullptr;

    mutable std::unique_ptr<OlapTableBlockConvertor> _block_convertor = nullptr;

    mutable TupleDescriptor* _tablet_sink_tuple_desc = nullptr;

    mutable RowDescriptor* _tablet_sink_row_desc = nullptr;

    mutable std::vector<RowPartTabletIds> _row_part_tablet_ids;

    mutable std::vector<HashValType> _hash_vals;

    mutable std::vector<bool> _skipped;

};

#include "common/compile_check_end.h"

} // namespace doris