105 lines
2.9 KiB
C++
105 lines
2.9 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
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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/actor/actor.h"
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#include "td/actor/PromiseFuture.h"
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#include "td/telegram/ChatId.h"
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#include "td/telegram/ChannelId.h"
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#include "td/telegram/files/FileManager.h"
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#include "td/telegram/MessageId.h"
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#include "td/telegram/SetWithPosition.h"
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#include "td/telegram/UserId.h"
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#include "td/utils/Variant.h"
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#include <unordered_map>
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namespace td {
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extern int VERBOSITY_NAME(file_references);
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class FileReferenceManager : public Actor {
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public:
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FileSourceId create_message_file_source(FullMessageId full_message_id);
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FileSourceId create_user_photo_file_source(UserId user_id, int64 photo_id);
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FileSourceId create_chat_photo_file_source(ChatId chat_id);
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FileSourceId create_channel_photo_file_source(ChannelId channel_id);
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FileSourceId create_wallpapers_file_source();
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FileSourceId create_web_page_file_source(string url);
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FileSourceId create_saved_animations_file_source();
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using NodeId = FileId;
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void repair_file_reference(NodeId node_id, Promise<> promise);
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void add_file_source(NodeId node_id, FileSourceId file_source_id);
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void remove_file_source(NodeId node_id, FileSourceId file_source_id);
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void merge(NodeId to_node_id, NodeId from_node_id);
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private:
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struct Destination {
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bool empty() const {
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return node_id.empty();
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}
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NodeId node_id;
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int64 generation;
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};
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struct Query {
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std::vector<Promise<>> promises;
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int32 active_queries{0};
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Destination proxy;
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int64 generation;
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};
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struct Node {
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SetWithPosition<FileSourceId> file_source_ids;
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unique_ptr<Query> query;
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};
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struct FileSourceMessage {
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FullMessageId full_message_id;
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};
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struct FileSourceUserPhoto {
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int64 photo_id;
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UserId user_id;
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};
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struct FileSourceChatPhoto {
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ChatId chat_id;
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};
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struct FileSourceChannelPhoto {
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ChannelId channel_id;
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};
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struct FileSourceWallpapers {
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// empty
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};
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struct FileSourceWebPage {
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string url;
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};
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struct FileSourceSavedAnimations {
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// empty
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};
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using FileSource = Variant<FileSourceMessage, FileSourceUserPhoto, FileSourceChatPhoto, FileSourceChannelPhoto,
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FileSourceWallpapers, FileSourceWebPage, FileSourceSavedAnimations>;
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vector<FileSource> file_sources_;
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int64 query_generation_{0};
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std::unordered_map<NodeId, Node, FileIdHash> nodes_;
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void run_node(NodeId node);
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void send_query(Destination dest, FileSourceId file_source_id);
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Destination on_query_result(Destination dest, FileSourceId file_source_id, Status status, int32 sub = 0);
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template <class T>
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FileSourceId add_file_source_id(T source);
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FileSourceId get_current_file_source_id() const;
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};
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} // namespace td
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