85 lines
2.7 KiB
C++
85 lines
2.7 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022
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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/files/FileId.h"
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#include "td/telegram/files/FileSourceId.h"
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#include "td/telegram/td_api.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/utils/common.h"
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#include "td/utils/Status.h"
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namespace td {
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class DownloadManager : public Actor {
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public:
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// creates, but do not stats the actor
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static td::unique_ptr<DownloadManager> create();
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struct Counters {
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int64 total_size{};
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int32 total_count{};
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int64 downloaded_size{};
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};
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struct FileDownload {
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FileId file_id;
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FileSourceId file_source_id;
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bool is_paused{};
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int32 add_date{};
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int32 complete_date{};
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};
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struct FoundFileDownloads {
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int32 total_count{};
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vector<FileDownload> file_downloads;
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string offset;
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tl_object_ptr<td_api::foundFileDownloads> to_td_api() const;
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};
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// Trying to make DownloadManager testable, so all interactions with G() will be hidden is this probably monstrous interface
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class Callback {
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public:
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virtual ~Callback() = default;
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virtual void update_counters(Counters counters) = 0;
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virtual void start_file(FileId file_id, int8 priority) = 0;
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virtual void pause_file(FileId file_id) = 0;
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virtual void delete_file(FileId file_id) = 0;
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virtual FileId dup_file_id(FileId file_id) = 0;
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virtual string get_unique_file_id(FileId file_id) = 0;
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virtual string get_file_source_serialized(FileSourceId file_source_id) = 0;
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};
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//
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// public interface for user
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//
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// sets callback to handle all updates
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virtual void set_callback(unique_ptr<Callback> callback) = 0;
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virtual Status toggle_is_paused(FileId, bool is_paused) = 0;
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virtual Status toggle_all_is_paused(bool is_paused) = 0;
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virtual Status remove_file(FileId file_id, FileSourceId file_source_id, bool delete_from_cache) = 0;
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virtual Status remove_all_files(bool only_active, bool only_completed, bool delete_from_cache) = 0;
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// Files are always added in is_paused = false state
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virtual Status add_file(FileId file_id, FileSourceId file_source_id, string search_by, int8 priority) = 0;
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virtual void search(std::string query, bool only_active, bool only_completed, string offset, int32 limit,
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Promise<FoundFileDownloads> promise) = 0;
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//
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// private interface to handle all kinds of updates
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//
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virtual void update_file_download_state(FileId file_id, int64 download_size, int64 size, bool is_paused) = 0;
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virtual void update_file_deleted(FileId file_id) = 0;
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};
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} // namespace td
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