Client.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once


#include "td/telegram/td_api.h"
#include "td/telegram/td_api.hpp"

#include <cstdint>
#include <memory>

namespace td {

class ClientManager final {
 public:
  ClientManager();

  using ClientId = std::int32_t;

  using RequestId = std::uint64_t;

  ClientId create_client_id();

  void send(ClientId client_id, RequestId request_id, td_api::object_ptr<td_api::Function> &&request);

  struct Response {
    ClientId client_id;

    RequestId request_id;

    td_api::object_ptr<td_api::Object> object;
  };

  Response receive(double timeout);

  static td_api::object_ptr<td_api::Object> execute(td_api::object_ptr<td_api::Function> &&request);

  using LogMessageCallbackPtr = void (*)(int verbosity_level, const char *message);

  static void set_log_message_callback(int max_verbosity_level, LogMessageCallbackPtr callback);

  ~ClientManager();

  ClientManager(ClientManager &&other) noexcept;

  ClientManager &operator=(ClientManager &&other) noexcept;

  static ClientManager *get_manager_singleton();

 private:
  friend class Client;
  class Impl;
  std::unique_ptr<Impl> impl_;
};

class Client final {
 public:
  Client();

  struct Request {
    std::uint64_t id;

    td_api::object_ptr<td_api::Function> function;
  };

  void send(Request &&request);

  struct Response {
    std::uint64_t id;

    td_api::object_ptr<td_api::Object> object;
  };

  Response receive(double timeout);

  static Response execute(Request &&request);

  ~Client();

  Client(Client &&other) noexcept;

  Client &operator=(Client &&other) noexcept;

 private:
  class Impl;
  std::unique_ptr<Impl> impl_;
};

}  // namespace td