434 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			434 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "data/data_shared_media.h"
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#include <rpl/combine.h>
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#include "main/main_session.h"
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#include "main/main_domain.h"
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#include "core/application.h"
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#include "apiwrap.h"
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#include "storage/storage_facade.h"
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#include "storage/storage_shared_media.h"
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#include "history/history.h"
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#include "history/history_item.h"
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#include "data/data_media_types.h"
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#include "data/data_photo.h"
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#include "data/data_sparse_ids.h"
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#include "data/data_session.h"
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#include "info/info_memento.h"
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#include "info/info_controller.h"
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#include "window/window_session_controller.h"
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#include "mainwindow.h"
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#include "core/crash_reports.h"
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namespace {
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using Type = Storage::SharedMediaType;
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} // namespace
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std::optional<Storage::SharedMediaType> SharedMediaOverviewType(
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		Storage::SharedMediaType type) {
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	switch (type) {
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	case Type::Photo:
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	case Type::Video:
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	case Type::MusicFile:
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	case Type::File:
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	case Type::RoundVoiceFile:
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	case Type::Link: return type;
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	}
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	return std::nullopt;
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}
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void SharedMediaShowOverview(
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		Storage::SharedMediaType type,
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		not_null<History*> history) {
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	if (SharedMediaOverviewType(type)) {
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		const auto &windows = history->session().windows();
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		if (windows.empty()) {
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			Core::App().domain().activate(&history->session().account());
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			if (windows.empty()) {
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				return;
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			}
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		}
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		windows.front()->showSection(std::make_shared<Info::Memento>(
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			history->peer,
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			Info::Section(type)));
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	}
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}
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bool SharedMediaAllowSearch(Storage::SharedMediaType type) {
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	switch (type) {
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	case Type::MusicFile:
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	case Type::File:
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	case Type::Link: return true;
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	default: return false;
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	}
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}
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rpl::producer<SparseIdsSlice> SharedMediaViewer(
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		not_null<Main::Session*> session,
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		Storage::SharedMediaKey key,
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		int limitBefore,
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		int limitAfter) {
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	Expects(IsServerMsgId(key.messageId) || (key.messageId == 0));
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	Expects((key.messageId != 0) || (limitBefore == 0 && limitAfter == 0));
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	return [=](auto consumer) {
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		auto lifetime = rpl::lifetime();
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		auto builder = lifetime.make_state<SparseIdsSliceBuilder>(
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			key.messageId,
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			limitBefore,
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			limitAfter);
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		auto requestMediaAround = [
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			peer = session->data().peer(key.peerId),
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			type = key.type
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		](const SparseIdsSliceBuilder::AroundData &data) {
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			peer->session().api().requestSharedMedia(
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				peer,
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				type,
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				data.aroundId,
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				data.direction);
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		};
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		builder->insufficientAround(
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		) | rpl::start_with_next(requestMediaAround, lifetime);
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		auto pushNextSnapshot = [=] {
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			consumer.put_next(builder->snapshot());
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		};
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		using SliceUpdate = Storage::SharedMediaSliceUpdate;
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		session->storage().sharedMediaSliceUpdated(
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		) | rpl::filter([=](const SliceUpdate &update) {
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			return (update.peerId == key.peerId)
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				&& (update.type == key.type);
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		}) | rpl::filter([=](const SliceUpdate &update) {
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			return builder->applyUpdate(update.data);
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		}) | rpl::start_with_next(pushNextSnapshot, lifetime);
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		using OneRemoved = Storage::SharedMediaRemoveOne;
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		session->storage().sharedMediaOneRemoved(
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		) | rpl::filter([=](const OneRemoved &update) {
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			return (update.peerId == key.peerId)
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				&& update.types.test(key.type);
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		}) | rpl::filter([=](const OneRemoved &update) {
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			return builder->removeOne(update.messageId);
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		}) | rpl::start_with_next(pushNextSnapshot, lifetime);
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		using AllRemoved = Storage::SharedMediaRemoveAll;
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		session->storage().sharedMediaAllRemoved(
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		) | rpl::filter([=](const AllRemoved &update) {
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			return (update.peerId == key.peerId)
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				&& (update.types.test(key.type));
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		}) | rpl::filter([=] {
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			return builder->removeAll();
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		}) | rpl::start_with_next(pushNextSnapshot, lifetime);
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		using InvalidateBottom = Storage::SharedMediaInvalidateBottom;
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		session->storage().sharedMediaBottomInvalidated(
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		) | rpl::filter([=](const InvalidateBottom &update) {
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			return (update.peerId == key.peerId);
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		}) | rpl::filter([=] {
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			return builder->invalidateBottom();
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		}) | rpl::start_with_next(pushNextSnapshot, lifetime);
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		using Result = Storage::SharedMediaResult;
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		session->storage().query(Storage::SharedMediaQuery(
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			key,
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			limitBefore,
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			limitAfter
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		)) | rpl::filter([=](const Result &result) {
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			return builder->applyInitial(result);
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		}) | rpl::start_with_next_done(
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			pushNextSnapshot,
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			[=] { builder->checkInsufficient(); },
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			lifetime);
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		return lifetime;
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	};
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}
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rpl::producer<SparseIdsMergedSlice> SharedMediaMergedViewer(
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		not_null<Main::Session*> session,
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		SharedMediaMergedKey key,
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		int limitBefore,
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		int limitAfter) {
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	auto createSimpleViewer = [=](
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			PeerId peerId,
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			SparseIdsSlice::Key simpleKey,
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			int limitBefore,
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			int limitAfter) {
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		return SharedMediaViewer(
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			session,
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			Storage::SharedMediaKey(
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				peerId,
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				key.type,
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				simpleKey),
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			limitBefore,
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			limitAfter
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		);
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	};
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	return SparseIdsMergedSlice::CreateViewer(
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		key.mergedKey,
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		limitBefore,
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		limitAfter,
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		std::move(createSimpleViewer));
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}
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SharedMediaWithLastSlice::SharedMediaWithLastSlice(
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	not_null<Main::Session*> session,
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	Key key)
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: SharedMediaWithLastSlice(
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	session,
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	key,
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	SparseIdsMergedSlice(ViewerKey(key)),
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	EndingSlice(key)) {
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}
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SharedMediaWithLastSlice::SharedMediaWithLastSlice(
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	not_null<Main::Session*> session,
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	Key key,
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	SparseIdsMergedSlice slice,
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	std::optional<SparseIdsMergedSlice> ending)
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: _session(session)
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, _key(key)
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, _slice(std::move(slice))
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, _ending(std::move(ending))
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, _lastPhotoId(LastPeerPhotoId(session, key.peerId))
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, _isolatedLastPhoto(_key.type == Type::ChatPhoto
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	? IsLastIsolated(session, _slice, _ending, _lastPhotoId)
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	: false) {
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}
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std::optional<int> SharedMediaWithLastSlice::fullCount() const {
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	return Add(
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		_slice.fullCount(),
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		_isolatedLastPhoto | [](bool isolated) { return isolated ? 1 : 0; });
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}
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std::optional<int> SharedMediaWithLastSlice::skippedBeforeImpl() const {
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	return _slice.skippedBefore();
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}
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std::optional<int> SharedMediaWithLastSlice::skippedBefore() const {
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	return _reversed ? skippedAfterImpl() : skippedBeforeImpl();
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}
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std::optional<int> SharedMediaWithLastSlice::skippedAfterImpl() const {
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	return isolatedInSlice()
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		? Add(
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			_slice.skippedAfter(),
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			lastPhotoSkip())
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		: (lastPhotoSkip() | [](int) { return 0; });
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}
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std::optional<int> SharedMediaWithLastSlice::skippedAfter() const {
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	return _reversed ? skippedBeforeImpl() : skippedAfterImpl();
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}
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std::optional<int> SharedMediaWithLastSlice::indexOfImpl(Value value) const {
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	return std::get_if<FullMsgId>(&value)
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		? _slice.indexOf(*std::get_if<FullMsgId>(&value))
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		: (isolatedInSlice()
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			|| !_lastPhotoId
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			|| (*std::get_if<not_null<PhotoData*>>(&value))->id != *_lastPhotoId)
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			? std::nullopt
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			: Add(_slice.size() - 1, lastPhotoSkip());
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}
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std::optional<int> SharedMediaWithLastSlice::indexOf(Value value) const {
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	const auto result = indexOfImpl(value);
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	if (result && (*result < 0 || *result >= size())) {
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		// Should not happen.
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		auto info = QStringList();
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		info.push_back("slice:" + QString::number(_slice.size()));
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		info.push_back(_slice.fullCount()
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			? QString::number(*_slice.fullCount())
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			: QString("-"));
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		info.push_back(_slice.skippedBefore()
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			? QString::number(*_slice.skippedBefore())
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			: QString("-"));
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		info.push_back(_slice.skippedAfter()
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			? QString::number(*_slice.skippedAfter())
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			: QString("-"));
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		info.push_back("ending:" + (_ending
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			? QString::number(_ending->size())
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			: QString("-")));
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		info.push_back((_ending && _ending->fullCount())
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			? QString::number(*_ending->fullCount())
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			: QString("-"));
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		info.push_back((_ending && _ending->skippedBefore())
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			? QString::number(*_ending->skippedBefore())
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			: QString("-"));
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		info.push_back((_ending && _ending->skippedAfter())
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			? QString::number(*_ending->skippedAfter())
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			: QString("-"));
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		if (const auto msgId = std::get_if<FullMsgId>(&value)) {
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			info.push_back("value:" + QString::number(msgId->channel));
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			info.push_back(QString::number(msgId->msg));
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			const auto index = _slice.indexOf(*std::get_if<FullMsgId>(&value));
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			info.push_back("index:" + (index
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				? QString::number(*index)
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				: QString("-")));
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		} else if (const auto photo = std::get_if<not_null<PhotoData*>>(&value)) {
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			info.push_back("value:" + QString::number((*photo)->id));
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		} else {
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			info.push_back("value:bad");
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		}
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		info.push_back("isolated:" + QString(Logs::b(isolatedInSlice())));
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		info.push_back("last:" + (_lastPhotoId
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			? QString::number(*_lastPhotoId)
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			: QString("-")));
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		info.push_back("isolated_last:" + (_isolatedLastPhoto
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			? QString(Logs::b(*_isolatedLastPhoto))
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			: QString("-")));
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		info.push_back("skip:" + (lastPhotoSkip()
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			? QString::number(*lastPhotoSkip())
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			: QString("-")));
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		CrashReports::SetAnnotation("DebugInfo", info.join(','));
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		Unexpected("Result in SharedMediaWithLastSlice::indexOf");
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	}
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	return _reversed
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		? (result | func::negate | func::add(size() - 1))
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		: result;
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}
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int SharedMediaWithLastSlice::size() const {
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	return _slice.size()
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		+ ((!isolatedInSlice() && lastPhotoSkip() == 1) ? 1 : 0);
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}
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SharedMediaWithLastSlice::Value SharedMediaWithLastSlice::operator[](int index) const {
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	Expects(index >= 0 && index < size());
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	if (_reversed) {
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		index = size() - index - 1;
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	}
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	return (index < _slice.size())
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		? Value(_slice[index])
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		: Value(_session->data().photo(*_lastPhotoId));
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}
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std::optional<int> SharedMediaWithLastSlice::distance(
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		const Key &a,
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		const Key &b) const {
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	if (auto i = indexOf(ComputeId(a))) {
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		if (auto j = indexOf(ComputeId(b))) {
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			return *j - *i;
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		}
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	}
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	return std::nullopt;
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}
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void SharedMediaWithLastSlice::reverse() {
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	_reversed = !_reversed;
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}
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std::optional<PhotoId> SharedMediaWithLastSlice::LastPeerPhotoId(
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		not_null<Main::Session*> session,
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		PeerId peerId) {
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	if (const auto peer = session->data().peerLoaded(peerId)) {
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		return peer->userpicPhotoUnknown()
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			? std::nullopt
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			: base::make_optional(peer->userpicPhotoId());
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	}
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	return std::nullopt;
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}
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std::optional<bool> SharedMediaWithLastSlice::IsLastIsolated(
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		not_null<Main::Session*> session,
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		const SparseIdsMergedSlice &slice,
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		const std::optional<SparseIdsMergedSlice> &ending,
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		std::optional<PhotoId> lastPeerPhotoId) {
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	if (!lastPeerPhotoId) {
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		return std::nullopt;
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	} else if (!*lastPeerPhotoId) {
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		return false;
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	}
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	return LastFullMsgId(ending ? *ending : slice)
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		| [&](FullMsgId msgId) { return session->data().message(msgId); }
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		| [](HistoryItem *item) { return item ? item->media() : nullptr; }
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		| [](Data::Media *media) { return media ? media->photo() : nullptr; }
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		| [](PhotoData *photo) { return photo ? photo->id : 0; }
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		| [&](PhotoId photoId) { return *lastPeerPhotoId != photoId; };
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}
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std::optional<FullMsgId> SharedMediaWithLastSlice::LastFullMsgId(
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		const SparseIdsMergedSlice &slice) {
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	if (slice.fullCount() == 0) {
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		return FullMsgId();
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	} else if (slice.size() == 0 || slice.skippedAfter() != 0) {
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		return std::nullopt;
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	}
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	return slice[slice.size() - 1];
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}
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rpl::producer<SharedMediaWithLastSlice> SharedMediaWithLastViewer(
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		not_null<Main::Session*> session,
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		SharedMediaWithLastSlice::Key key,
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		int limitBefore,
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		int limitAfter) {
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	return [=](auto consumer) {
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		if (std::get_if<not_null<PhotoData*>>(&key.universalId)) {
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			return SharedMediaMergedViewer(
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				session,
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				SharedMediaMergedKey(
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					SharedMediaWithLastSlice::ViewerKey(key),
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					key.type),
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				limitBefore,
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				limitAfter
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			) | rpl::start_with_next([=](SparseIdsMergedSlice &&update) {
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				consumer.put_next(SharedMediaWithLastSlice(
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					session,
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					key,
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					std::move(update),
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					std::nullopt));
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			});
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		}
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		return rpl::combine(
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			SharedMediaMergedViewer(
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				session,
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				SharedMediaMergedKey(
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					SharedMediaWithLastSlice::ViewerKey(key),
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					key.type),
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				limitBefore,
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				limitAfter),
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			SharedMediaMergedViewer(
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				session,
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				SharedMediaMergedKey(
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					SharedMediaWithLastSlice::EndingKey(key),
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					key.type),
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				1,
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				1)
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		) | rpl::start_with_next([=](
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				SparseIdsMergedSlice &&viewer,
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				SparseIdsMergedSlice &&ending) {
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			consumer.put_next(SharedMediaWithLastSlice(
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				session,
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				key,
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				std::move(viewer),
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				std::move(ending)));
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		});
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	};
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}
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rpl::producer<SharedMediaWithLastSlice> SharedMediaWithLastReversedViewer(
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		not_null<Main::Session*> session,
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		SharedMediaWithLastSlice::Key key,
 | 
						|
		int limitBefore,
 | 
						|
		int limitAfter) {
 | 
						|
	return SharedMediaWithLastViewer(
 | 
						|
		session,
 | 
						|
		key,
 | 
						|
		limitBefore,
 | 
						|
		limitAfter
 | 
						|
	) | rpl::map([](SharedMediaWithLastSlice &&slice) {
 | 
						|
		slice.reverse();
 | 
						|
		return std::move(slice);
 | 
						|
	});
 | 
						|
}
 |