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//
//  Copyright 2021 Google, Inc.
//
//  Licensed 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

#if defined(BASE_VER) && BASE_VER > 780000
/* libchrome version < 780000 still has the old message loop. Android still uses
 * the old libchrome version so use the basic messageloop where that's required.
 * Elsewhere, use the SingleThreadTaskExecutor instead.
 */
#if BASE_VER >= 822064
#include <base/task/current_thread.h>
#else
#include <base/message_loop/message_loop_current.h>
#endif
#include <base/message_loop/message_pump.h>
#include <base/task/single_thread_task_executor.h>
#include <base/test/task_environment.h>
#include <base/threading/thread.h>
#include <base/threading/thread_task_runner_handle.h>
#else
#include <base/message_loop/message_loop.h>
#include <base/threading/thread.h>
#endif

namespace btbase {

#if defined(BASE_VER) && BASE_VER > 780000

class AbstractMessageLoop : public base::SingleThreadTaskExecutor {
 public:
  static scoped_refptr<base::SingleThreadTaskRunner> current_task_runner() {
    return base::ThreadTaskRunnerHandle::Get();
  }
};

class AbstractTestMessageLoop : public base::test::TaskEnvironment {
 public:
  static scoped_refptr<base::SingleThreadTaskRunner> current_task_runner() {
    return base::ThreadTaskRunnerHandle::Get();
  }
};

// Initialize the test task environment
#define DEFINE_TEST_TASK_ENV(var)                                \
  base::AbstractTestMessageLoop var {                            \
    base::test::TaskEnvironment::ThreadingMode::MAIN_THREAD_ONLY \
  }

inline void set_message_loop_type_IO(base::Thread::Options& options) {
  options.message_pump_type = base::MessagePumpType::IO;
}

#else
class AbstractMessageLoop : public base::MessageLoop {
 public:
  static scoped_refptr<base::SingleThreadTaskRunner> current_task_runner() {
    return base::MessageLoop::current()->task_runner();
  }
};

class AbstractTestMessageLoop : public AbstractMessageLoop {};

#define DEFINE_TEST_TASK_ENV(var) base::AbstractTestMessageLoop* var

inline void set_message_loop_type_IO(base::Thread::Options& options) {
  options.message_loop_type = base::MessageLoop::TYPE_IO;
}

#endif

}  // namespace btbase