tdlight/td/telegram/TimeZoneManager.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
//
// 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
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#include "td/telegram/td_api.h"
#include "td/telegram/telegram_api.h"
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#include "td/actor/actor.h"
#include "td/utils/common.h"
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#include "td/utils/Promise.h"
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namespace td {
class Td;
class TimeZoneManager final : public Actor {
public:
TimeZoneManager(Td *td, ActorShared<> parent);
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TimeZoneManager(const TimeZoneManager &) = delete;
TimeZoneManager &operator=(const TimeZoneManager &) = delete;
TimeZoneManager(TimeZoneManager &&) = delete;
TimeZoneManager &operator=(TimeZoneManager &&) = delete;
~TimeZoneManager() final;
void get_time_zones(Promise<td_api::object_ptr<td_api::timeZones>> &&promise);
void reload_time_zones(Promise<td_api::object_ptr<td_api::timeZones>> &&promise);
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private:
void tear_down() final;
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struct TimeZone {
string id_;
string name_;
int32 utc_offset_ = 0;
TimeZone() = default;
TimeZone(string &&id, string &&name, int32 utc_offset);
td_api::object_ptr<td_api::timeZone> get_time_zone_object() const;
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template <class StorerT>
void store(StorerT &storer) const;
template <class ParserT>
void parse(ParserT &parser);
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};
struct TimeZoneList {
vector<TimeZone> time_zones_;
int32 hash_ = 0;
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bool is_loaded_ = false;
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td_api::object_ptr<td_api::timeZones> get_time_zones_object() const;
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template <class StorerT>
void store(StorerT &storer) const;
template <class ParserT>
void parse(ParserT &parser);
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};
friend bool operator==(const TimeZone &lhs, const TimeZone &rhs);
friend bool operator!=(const TimeZone &lhs, const TimeZone &rhs);
void on_get_time_zones(Result<telegram_api::object_ptr<telegram_api::help_TimezonesList>> &&r_time_zones);
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static string get_time_zones_database_key();
void load_time_zones();
void save_time_zones();
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vector<Promise<td_api::object_ptr<td_api::timeZones>>> get_time_zones_queries_;
TimeZoneList time_zones_;
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Td *td_;
ActorShared<> parent_;
};
} // namespace td