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tdlib-fork/td/telegram/LanguagePackManager.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
//
// 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/net/NetQuery.h"
#include "td/telegram/td_api.h"
#include "td/telegram/telegram_api.h"
#include "td/actor/actor.h"
#include "td/actor/PromiseFuture.h"
#include "td/utils/Container.h"
#include "td/utils/Slice.h"
#include <mutex>
#include <unordered_map>
#include <utility>
namespace td {
class LanguagePackManager : public NetQueryCallback {
public:
explicit LanguagePackManager(ActorShared<> parent) : parent_(std::move(parent)) {
}
LanguagePackManager(const LanguagePackManager &) = delete;
LanguagePackManager &operator=(const LanguagePackManager &) = delete;
LanguagePackManager(LanguagePackManager &&) = delete;
LanguagePackManager &operator=(LanguagePackManager &&) = delete;
~LanguagePackManager() override;
static bool check_language_pack_name(Slice name);
static bool check_language_code_name(Slice name);
void on_language_pack_changed();
void on_language_code_changed();
void on_language_pack_version_changed(int32 new_version);
void get_languages(Promise<td_api::object_ptr<td_api::languagePack>> promise);
void get_language_pack_strings(string language_code, vector<string> keys,
Promise<td_api::object_ptr<td_api::languagePackStrings>> promise);
static td_api::object_ptr<td_api::Object> get_language_pack_string(const string &database_path,
const string &language_pack,
const string &language_code, const string &key);
void on_update_language_pack(tl_object_ptr<telegram_api::langPackDifference> difference);
private:
struct PluralizedString;
struct Language;
struct LanguagePack;
struct LanguageDatabase;
ActorShared<> parent_;
string language_pack_;
string language_code_;
LanguageDatabase *database_ = nullptr;
static int32 manager_count_;
static std::mutex language_database_mutex_;
static std::unordered_map<string, std::unique_ptr<LanguageDatabase>> language_databases_;
static LanguageDatabase *add_language_database(const string &path);
static Language *get_language(LanguageDatabase *database, const string &language_pack, const string &language_code);
static Language *get_language(LanguagePack *language_pack, const string &language_code);
static Language *add_language(LanguageDatabase *database, const string &language_pack, const string &language_code);
static bool language_has_string_unsafe(Language *language, const string &key);
static bool language_has_strings(Language *language, const vector<string> &keys);
static void load_language_string_unsafe(Language *language, const string &key, string &value);
static bool load_language_strings(LanguageDatabase *database, Language *language, const vector<string> &keys);
static td_api::object_ptr<td_api::LanguagePackString> get_language_pack_string_object(
const std::pair<string, string> &str);
static td_api::object_ptr<td_api::LanguagePackString> get_language_pack_string_object(
const std::pair<string, PluralizedString> &str);
static td_api::object_ptr<td_api::LanguagePackString> get_language_pack_string_object(const string &str);
static td_api::object_ptr<td_api::LanguagePackString> get_language_pack_string_object(Language *language,
const string &key);
static td_api::object_ptr<td_api::languagePackStrings> get_language_pack_strings_object(Language *language,
const vector<string> &keys);
void inc_generation();
static bool is_valid_key(Slice key);
void save_strings_to_database(Language *language, int32 new_version, vector<std::pair<string, string>> strings);
void on_get_language_pack_strings(string language_pack, string language_code, int32 version, bool is_diff,
vector<string> keys, vector<tl_object_ptr<telegram_api::LangPackString>> results,
Promise<td_api::object_ptr<td_api::languagePackStrings>> promise);
void on_failed_get_difference(string language_pack, string language_code);
void on_result(NetQueryPtr query) override;
void start_up() override;
void hangup() override;
void tear_down() override;
Container<Promise<NetQueryPtr>> container_;
void send_with_promise(NetQueryPtr query, Promise<NetQueryPtr> promise);
};
} // namespace td