225 lines
7.1 KiB
C++
225 lines
7.1 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/telegram/FullMessageId.h"
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#include "td/telegram/MessageEntity.h"
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#include "td/telegram/net/NetQuery.h"
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#include "td/telegram/PollId.h"
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#include "td/telegram/ReplyMarkup.h"
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#include "td/telegram/td_api.h"
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#include "td/telegram/telegram_api.h"
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#include "td/telegram/UserId.h"
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#include "td/actor/actor.h"
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#include "td/actor/PromiseFuture.h"
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#include "td/actor/Timeout.h"
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#include "td/utils/buffer.h"
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#include "td/utils/common.h"
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#include "td/utils/Status.h"
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#include <unordered_map>
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#include <unordered_set>
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#include <utility>
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namespace td {
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struct BinlogEvent;
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class Td;
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class PollManager : public Actor {
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public:
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PollManager(Td *td, ActorShared<> parent);
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PollManager(const PollManager &) = delete;
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PollManager &operator=(const PollManager &) = delete;
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PollManager(PollManager &&) = delete;
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PollManager &operator=(PollManager &&) = delete;
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~PollManager() override;
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static bool is_local_poll_id(PollId poll_id);
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PollId create_poll(string &&question, vector<string> &&options, bool is_anonymous, bool allow_multiple_answers,
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bool is_quiz, int32 correct_option_id, FormattedText &&explanation, int32 open_period,
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int32 close_date, bool is_closed);
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void register_poll(PollId poll_id, FullMessageId full_message_id, const char *source);
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void unregister_poll(PollId poll_id, FullMessageId full_message_id, const char *source);
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bool get_poll_is_closed(PollId poll_id) const;
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bool get_poll_is_anonymous(PollId poll_id) const;
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string get_poll_search_text(PollId poll_id) const;
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void set_poll_answer(PollId poll_id, FullMessageId full_message_id, vector<int32> &&option_ids,
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Promise<Unit> &&promise);
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void get_poll_voters(PollId poll_id, FullMessageId full_message_id, int32 option_id, int32 offset, int32 limit,
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Promise<std::pair<int32, vector<UserId>>> &&promise);
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void stop_poll(PollId poll_id, FullMessageId full_message_id, unique_ptr<ReplyMarkup> &&reply_markup,
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Promise<Unit> &&promise);
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void stop_local_poll(PollId poll_id);
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bool has_input_media(PollId poll_id) const;
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tl_object_ptr<telegram_api::InputMedia> get_input_media(PollId poll_id) const;
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PollId on_get_poll(PollId poll_id, tl_object_ptr<telegram_api::poll> &&poll_server,
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tl_object_ptr<telegram_api::pollResults> &&poll_results);
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void on_get_poll_vote(PollId poll_id, UserId user_id, vector<BufferSlice> &&options);
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td_api::object_ptr<td_api::poll> get_poll_object(PollId poll_id) const;
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void on_binlog_events(vector<BinlogEvent> &&events);
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static vector<int32> get_vote_percentage(const vector<int32> &voter_counts, int32 total_voter_count);
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template <class StorerT>
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void store_poll(PollId poll_id, StorerT &storer) const;
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template <class ParserT>
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PollId parse_poll(ParserT &parser);
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private:
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struct PollOption {
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string text;
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string data;
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int32 voter_count = 0;
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bool is_chosen = false;
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template <class StorerT>
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void store(StorerT &storer) const;
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template <class ParserT>
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void parse(ParserT &parser);
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};
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struct Poll {
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string question;
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vector<PollOption> options;
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vector<UserId> recent_voter_user_ids;
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FormattedText explanation;
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int32 total_voter_count = 0;
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int32 correct_option_id = -1;
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int32 open_period = 0;
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int32 close_date = 0;
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bool is_anonymous = true;
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bool allow_multiple_answers = false;
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bool is_quiz = false;
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bool is_closed = false;
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mutable bool was_saved = false;
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template <class StorerT>
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void store(StorerT &storer) const;
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template <class ParserT>
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void parse(ParserT &parser);
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};
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struct PollOptionVoters {
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vector<UserId> voter_user_ids;
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string next_offset;
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vector<Promise<std::pair<int32, vector<UserId>>>> pending_queries;
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bool was_invalidated = false; // the list needs to be invalidated when voters are changed
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};
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static constexpr int32 MAX_GET_POLL_VOTERS = 50; // server side limit
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class SetPollAnswerLogEvent;
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class StopPollLogEvent;
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void start_up() override;
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void tear_down() override;
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static void on_update_poll_timeout_callback(void *poll_manager_ptr, int64 poll_id_int);
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static td_api::object_ptr<td_api::pollOption> get_poll_option_object(const PollOption &poll_option);
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static telegram_api::object_ptr<telegram_api::pollAnswer> get_input_poll_option(const PollOption &poll_option);
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static vector<PollOption> get_poll_options(vector<tl_object_ptr<telegram_api::pollAnswer>> &&poll_options);
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bool have_poll(PollId poll_id) const;
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bool have_poll_force(PollId poll_id);
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const Poll *get_poll(PollId poll_id) const;
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Poll *get_poll_editable(PollId poll_id);
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void notify_on_poll_update(PollId poll_id);
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static string get_poll_database_key(PollId poll_id);
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void save_poll(const Poll *poll, PollId poll_id);
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void on_load_poll_from_database(PollId poll_id, string value);
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double get_polling_timeout() const;
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void on_update_poll_timeout(PollId poll_id);
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void on_online();
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Poll *get_poll_force(PollId poll_id);
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td_api::object_ptr<td_api::poll> get_poll_object(PollId poll_id, const Poll *poll) const;
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void on_get_poll_results(PollId poll_id, uint64 generation, Result<tl_object_ptr<telegram_api::Updates>> result);
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void do_set_poll_answer(PollId poll_id, FullMessageId full_message_id, vector<string> &&options, uint64 logevent_id,
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Promise<Unit> &&promise);
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void on_set_poll_answer(PollId poll_id, uint64 generation, Result<tl_object_ptr<telegram_api::Updates>> &&result);
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void invalidate_poll_voters(const Poll *poll, PollId poll_id);
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void invalidate_poll_option_voters(const Poll *poll, PollId poll_id, size_t option_index);
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PollOptionVoters &get_poll_option_voters(const Poll *poll, PollId poll_id, int32 option_id);
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void on_get_poll_voters(PollId poll_id, int32 option_id, int32 limit,
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Result<tl_object_ptr<telegram_api::messages_votesList>> &&result);
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void do_stop_poll(PollId poll_id, FullMessageId full_message_id, unique_ptr<ReplyMarkup> &&reply_markup,
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uint64 logevent_id, Promise<Unit> &&promise);
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MultiTimeout update_poll_timeout_{"UpdatePollTimeout"};
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Td *td_;
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ActorShared<> parent_;
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std::unordered_map<PollId, unique_ptr<Poll>, PollIdHash> polls_;
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std::unordered_map<PollId, std::unordered_set<FullMessageId, FullMessageIdHash>, PollIdHash> poll_messages_;
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struct PendingPollAnswer {
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vector<string> options_;
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vector<Promise<Unit>> promises_;
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uint64 generation_ = 0;
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uint64 logevent_id_ = 0;
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NetQueryRef query_ref_;
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};
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std::unordered_map<PollId, PendingPollAnswer, PollIdHash> pending_answers_;
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std::unordered_map<PollId, vector<PollOptionVoters>, PollIdHash> poll_voters_;
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int64 current_local_poll_id_ = 0;
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uint64 current_generation_ = 0;
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std::unordered_set<PollId, PollIdHash> loaded_from_database_polls_;
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std::unordered_set<PollId, PollIdHash> being_closed_polls_;
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};
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} // namespace td
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