// 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 <cstddef>

#include <memory>

#include <string>

#include <unordered_map>

#include <unordered_set>

#include <vector>

#include "cctz/time_zone.h"

#include "common/status.h"

#include "format/arrow/arrow_pip_input_stream.h"

#include "format/file_reader/new_plain_text_line_reader.h"

#include "format/generic_reader.h"

#include "io/file_factory.h"

#include "io/fs/file_reader_writer_fwd.h"

namespace doris {

namespace io {

class FileSystem;

struct IOContext;

} // namespace io

struct ScannerCounter;

class Block;

class ArrowStreamReader : public GenericReader {

    ENABLE_FACTORY_CREATOR(ArrowStreamReader);

public:

    ArrowStreamReader(RuntimeState* state, RuntimeProfile* profile, ScannerCounter* counter,

                      const TFileScanRangeParams& params, const TFileRangeDesc& range,

                      const std::vector<SlotDescriptor*>& file_slot_descs, io::IOContext* io_ctx);

    ~ArrowStreamReader() override;

    Status init_reader();

    Status _do_get_next_block(Block* block, size_t* read_rows, bool* eof) override;

    Status _get_columns_impl(std::unordered_map<std::string, DataTypePtr>* name_to_type) override;

protected:

    Status _do_init_reader(ReaderInitContext* /*ctx*/) override { return init_reader(); }

private:

    RuntimeState* _state;

    const TFileRangeDesc& _range;

    const std::vector<SlotDescriptor*>& _file_slot_descs;

    io::IOContext* _io_ctx;

    io::FileReaderSPtr _file_reader;

    std::unique_ptr<doris::ArrowPipInputStream> _pip_stream;

    cctz::time_zone _ctzz;

};

} // namespace doris