// 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 <memory>
#include <string>
#include <vector>

#include "arrow/io/interfaces.h"
#include "arrow/testing/visibility.h"
#include "arrow/type_fwd.h"

namespace arrow {
namespace io {

class MemoryMappedFile;

ARROW_TESTING_EXPORT
void AssertFileContents(const std::string& path, const std::string& contents);

ARROW_TESTING_EXPORT bool FileExists(const std::string& path);

ARROW_TESTING_EXPORT Status PurgeLocalFileFromOsCache(const std::string& path);

ARROW_TESTING_EXPORT
Status ZeroMemoryMap(MemoryMappedFile* file);

class ARROW_TESTING_EXPORT MemoryMapFixture {
 public:
  void TearDown();

  void CreateFile(const std::string& path, int64_t size);

  Result<std::shared_ptr<MemoryMappedFile>> InitMemoryMap(int64_t size,
                                                          const std::string& path);

  void AppendFile(const std::string& path);

 private:
  std::vector<std::string> tmp_files_;
};

class ARROW_TESTING_EXPORT TrackedRandomAccessFile : public io::RandomAccessFile {
 public:
  virtual int64_t num_reads() const = 0;
  virtual int64_t bytes_read() const = 0;
  virtual const std::vector<io::ReadRange>& get_read_ranges() const = 0;
  virtual void ResetStats() = 0;

  static std::unique_ptr<TrackedRandomAccessFile> Make(io::RandomAccessFile* target);
};

}  // namespace io
}  // namespace arrow
