tdesktop/Telegram/SourceFiles/data/data_stories.cpp

2022 lines
55 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "data/data_stories.h"
#include "api/api_report.h"
#include "base/unixtime.h"
#include "apiwrap.h"
#include "core/application.h"
#include "data/data_changes.h"
#include "data/data_channel.h"
#include "data/data_document.h"
#include "data/data_folder.h"
#include "data/data_photo.h"
#include "data/data_user.h"
#include "data/data_session.h"
#include "history/history.h"
#include "history/history_item.h"
#include "lang/lang_keys.h"
#include "main/main_session.h"
#include "ui/layers/show.h"
#include "ui/text/text_utilities.h"
namespace Data {
namespace {
constexpr auto kMaxResolveTogether = 100;
constexpr auto kIgnorePreloadAroundIfLoaded = 15;
constexpr auto kPreloadAroundCount = 30;
constexpr auto kMarkAsReadDelay = 3 * crl::time(1000);
constexpr auto kIncrementViewsDelay = 5 * crl::time(1000);
constexpr auto kArchiveFirstPerPage = 30;
constexpr auto kArchivePerPage = 100;
constexpr auto kSavedFirstPerPage = 30;
constexpr auto kSavedPerPage = 100;
constexpr auto kMaxPreloadSources = 10;
constexpr auto kStillPreloadFromFirst = 3;
constexpr auto kMaxSegmentsCount = 180;
constexpr auto kPollingIntervalChat = 5 * TimeId(60);
constexpr auto kPollingIntervalViewer = 1 * TimeId(60);
constexpr auto kPollViewsInterval = 10 * crl::time(1000);
constexpr auto kPollingViewsPerPage = Story::kRecentViewersMax;
using UpdateFlag = StoryUpdate::Flag;
[[nodiscard]] std::optional<StoryMedia> ParseMedia(
not_null<Session*> owner,
const MTPMessageMedia &media) {
return media.match([&](const MTPDmessageMediaPhoto &data)
-> std::optional<StoryMedia> {
if (const auto photo = data.vphoto()) {
const auto result = owner->processPhoto(*photo);
if (!result->isNull()) {
return StoryMedia{ result };
}
}
return {};
}, [&](const MTPDmessageMediaDocument &data)
-> std::optional<StoryMedia> {
if (const auto document = data.vdocument()) {
const auto result = owner->processDocument(*document);
if (!result->isNull()
&& (result->isGifv() || result->isVideoFile())) {
result->setStoryMedia(true);
return StoryMedia{ result };
}
}
return {};
}, [&](const MTPDmessageMediaUnsupported &data) {
return std::make_optional(StoryMedia{ v::null });
}, [](const auto &) { return std::optional<StoryMedia>(); });
}
} // namespace
StoriesSourceInfo StoriesSource::info() const {
return {
.id = peer->id,
.last = ids.empty() ? 0 : ids.back().date,
.count = uint32(std::min(int(ids.size()), kMaxSegmentsCount)),
.unreadCount = uint32(std::min(unreadCount(), kMaxSegmentsCount)),
.premium = (peer->isUser() && peer->asUser()->isPremium()) ? 1U : 0,
};
}
int StoriesSource::unreadCount() const {
const auto i = ids.lower_bound(StoryIdDates{ .id = readTill + 1 });
return int(end(ids) - i);
}
StoryIdDates StoriesSource::toOpen() const {
if (ids.empty()) {
return {};
}
const auto i = ids.lower_bound(StoryIdDates{ readTill + 1 });
return (i != end(ids)) ? *i : ids.front();
}
Stories::Stories(not_null<Session*> owner)
: _owner(owner)
, _expireTimer([=] { processExpired(); })
, _markReadTimer([=] { sendMarkAsReadRequests(); })
, _incrementViewsTimer([=] { sendIncrementViewsRequests(); })
, _pollingTimer([=] { sendPollingRequests(); })
, _pollingViewsTimer([=] { sendPollingViewsRequests(); }) {
crl::on_main(this, [=] {
session().changes().peerUpdates(
Data::PeerUpdate::Flag::Rights
) | rpl::start_with_next([=](const Data::PeerUpdate &update) {
const auto channel = update.peer->asChannel();
if (!channel) {
return;
} else if (!channel->canEditStories()) {
const auto peerId = channel->id;
const auto i = _peersWithDeletedStories.find(peerId);
if (i != end(_peersWithDeletedStories)) {
_peersWithDeletedStories.erase(i);
for (auto j = begin(_deleted); j != end(_deleted);) {
if (j->peer == peerId) {
j = _deleted.erase(j);
} else {
++j;
}
}
}
} else {
clearArchive(channel);
}
}, _lifetime);
});
}
Stories::~Stories() {
Expects(_pollingSettings.empty());
Expects(_pollingViews.empty());
}
Session &Stories::owner() const {
return *_owner;
}
Main::Session &Stories::session() const {
return _owner->session();
}
void Stories::apply(const MTPDupdateStory &data) {
const auto peerId = peerFromMTP(data.vpeer());
const auto peer = _owner->peer(peerId);
const auto now = base::unixtime::now();
const auto idDates = parseAndApply(peer, data.vstory(), now);
if (!idDates) {
return;
}
const auto expired = (idDates.expires <= now);
if (expired) {
applyExpired({ peerId, idDates.id });
return;
}
const auto i = _all.find(peerId);
if (i == end(_all)) {
requestPeerStories(peer);
return;
} else if (i->second.ids.contains(idDates)) {
return;
}
const auto wasInfo = i->second.info();
i->second.ids.emplace(idDates);
const auto nowInfo = i->second.info();
if (peer->isSelf() && i->second.readTill < idDates.id) {
_readTill[peerId] = i->second.readTill = idDates.id;
}
if (wasInfo == nowInfo) {
return;
}
const auto refreshInList = [&](StorySourcesList list) {
auto &sources = _sources[static_cast<int>(list)];
const auto i = ranges::find(
sources,
peerId,
&StoriesSourceInfo::id);
if (i != end(sources)) {
*i = nowInfo;
sort(list);
}
};
if (peer->hasStoriesHidden()) {
refreshInList(StorySourcesList::Hidden);
} else {
refreshInList(StorySourcesList::NotHidden);
}
_sourceChanged.fire_copy(peerId);
updatePeerStoriesState(peer);
}
void Stories::apply(const MTPDupdateReadStories &data) {
bumpReadTill(peerFromMTP(data.vpeer()), data.vmax_id().v);
}
void Stories::apply(const MTPStoriesStealthMode &stealthMode) {
const auto &data = stealthMode.data();
_stealthMode = StealthMode{
.enabledTill = data.vactive_until_date().value_or_empty(),
.cooldownTill = data.vcooldown_until_date().value_or_empty(),
};
}
void Stories::apply(not_null<PeerData*> peer, const MTPPeerStories *data) {
if (!data) {
applyDeletedFromSources(peer->id, StorySourcesList::NotHidden);
applyDeletedFromSources(peer->id, StorySourcesList::Hidden);
_all.erase(peer->id);
_sourceChanged.fire_copy(peer->id);
updatePeerStoriesState(peer);
} else {
parseAndApply(*data);
}
}
Story *Stories::applyFromWebpage(PeerId peerId, const MTPstoryItem &story) {
const auto idDates = parseAndApply(
_owner->peer(peerId),
story,
base::unixtime::now());
const auto value = idDates
? lookup({ peerId, idDates.id })
: base::make_unexpected(NoStory::Deleted);
return value ? value->get() : nullptr;
}
void Stories::requestPeerStories(
not_null<PeerData*> peer,
Fn<void()> done) {
const auto [i, ok] = _requestingPeerStories.emplace(peer);
if (done) {
i->second.push_back(std::move(done));
}
if (!ok) {
return;
}
const auto finish = [=] {
if (const auto callbacks = _requestingPeerStories.take(peer)) {
for (const auto &callback : *callbacks) {
callback();
}
}
};
_owner->session().api().request(MTPstories_GetPeerStories(
peer->input
)).done([=](const MTPstories_PeerStories &result) {
const auto &data = result.data();
_owner->processUsers(data.vusers());
_owner->processChats(data.vchats());
parseAndApply(data.vstories());
finish();
}).fail([=] {
applyDeletedFromSources(peer->id, StorySourcesList::NotHidden);
applyDeletedFromSources(peer->id, StorySourcesList::Hidden);
finish();
}).send();
}
void Stories::registerExpiring(TimeId expires, FullStoryId id) {
for (auto i = _expiring.findFirst(expires)
; (i != end(_expiring)) && (i->first == expires)
; ++i) {
if (i->second == id) {
return;
}
}
const auto reschedule = _expiring.empty()
|| (_expiring.front().first > expires);
_expiring.emplace(expires, id);
if (reschedule) {
scheduleExpireTimer();
}
}
void Stories::scheduleExpireTimer() {
if (_expireSchedulePosted) {
return;
}
_expireSchedulePosted = true;
crl::on_main(this, [=] {
if (!_expireSchedulePosted) {
return;
}
_expireSchedulePosted = false;
if (_expiring.empty()) {
_expireTimer.cancel();
} else {
const auto nearest = _expiring.front().first;
const auto now = base::unixtime::now();
const auto delay = (nearest > now)
? (nearest - now)
: 0;
_expireTimer.callOnce(delay * crl::time(1000));
}
});
}
void Stories::processExpired() {
const auto now = base::unixtime::now();
auto expired = base::flat_set<FullStoryId>();
auto i = begin(_expiring);
for (; i != end(_expiring) && i->first <= now; ++i) {
expired.emplace(i->second);
}
_expiring.erase(begin(_expiring), i);
for (const auto &id : expired) {
applyExpired(id);
}
if (!_expiring.empty()) {
scheduleExpireTimer();
}
}
Stories::Set *Stories::lookupArchive(not_null<PeerData*> peer) {
const auto peerId = peer->id;
if (hasArchive(peer)) {
const auto i = _archive.find(peerId);
return (i != end(_archive))
? &i->second
: &_archive.emplace(peerId, Set()).first->second;
}
clearArchive(peer);
return nullptr;
}
void Stories::clearArchive(not_null<PeerData*> peer) {
const auto peerId = peer->id;
const auto i = _archive.find(peerId);
if (i == end(_archive)) {
return;
}
auto archive = base::take(i->second);
_archive.erase(i);
for (const auto &id : archive.ids.list) {
if (const auto story = lookup({ peerId, id })) {
if ((*story)->expired() && !(*story)->pinned()) {
applyDeleted(peer, id);
}
}
}
_archiveChanged.fire_copy(peerId);
}
void Stories::parseAndApply(const MTPPeerStories &stories) {
const auto &data = stories.data();
const auto peerId = peerFromMTP(data.vpeer());
const auto already = _readTill.find(peerId);
const auto readTill = std::max(
data.vmax_read_id().value_or_empty(),
(already != end(_readTill) ? already->second : 0));
const auto peer = _owner->peer(peerId);
auto result = StoriesSource{
.peer = peer,
.readTill = readTill,
.hidden = peer->hasStoriesHidden(),
};
const auto &list = data.vstories().v;
const auto now = base::unixtime::now();
result.ids.reserve(list.size());
for (const auto &story : list) {
if (const auto id = parseAndApply(result.peer, story, now)) {
result.ids.emplace(id);
}
}
if (result.ids.empty()) {
applyDeletedFromSources(peerId, StorySourcesList::NotHidden);
applyDeletedFromSources(peerId, StorySourcesList::Hidden);
peer->setStoriesState(PeerData::StoriesState::None);
return;
} else if (peer->isSelf()) {
result.readTill = result.ids.back().id;
}
_readTill[peerId] = result.readTill;
const auto info = result.info();
const auto i = _all.find(peerId);
if (i != end(_all)) {
if (i->second != result) {
i->second = std::move(result);
}
} else {
_all.emplace(peerId, std::move(result));
}
const auto add = [&](StorySourcesList list) {
auto &sources = _sources[static_cast<int>(list)];
const auto i = ranges::find(
sources,
peerId,
&StoriesSourceInfo::id);
if (i == end(sources)) {
sources.push_back(info);
} else if (*i == info) {
return;
} else {
*i = info;
}
sort(list);
};
if (result.peer->isSelf()
|| (result.peer->isChannel() && result.peer->asChannel()->amIn())
|| (result.peer->isUser()
&& (result.peer->asUser()->isBot()
|| result.peer->asUser()->isContact()))
|| result.peer->isServiceUser()) {
const auto hidden = result.peer->hasStoriesHidden();
using List = StorySourcesList;
add(hidden ? List::Hidden : List::NotHidden);
applyDeletedFromSources(
peerId,
hidden ? List::NotHidden : List::Hidden);
} else {
applyDeletedFromSources(peerId, StorySourcesList::NotHidden);
applyDeletedFromSources(peerId, StorySourcesList::Hidden);
}
_sourceChanged.fire_copy(peerId);
updatePeerStoriesState(result.peer);
}
Story *Stories::parseAndApply(
not_null<PeerData*> peer,
const MTPDstoryItem &data,
TimeId now) {
const auto media = ParseMedia(_owner, data.vmedia());
if (!media) {
return nullptr;
}
const auto expires = data.vexpire_date().v;
const auto expired = (expires <= now);
if (expired && !data.is_pinned() && !hasArchive(peer)) {
return nullptr;
}
const auto id = data.vid().v;
const auto fullId = FullStoryId{ peer->id, id };
auto &stories = _stories[peer->id];
const auto i = stories.find(id);
if (i != end(stories)) {
const auto result = i->second.get();
const auto mediaChanged = (result->media() != *media);
result->applyChanges(*media, data, now);
const auto j = _pollingSettings.find(result);
if (j != end(_pollingSettings)) {
maybeSchedulePolling(result, j->second, now);
}
if (mediaChanged) {
_preloaded.remove(fullId);
if (_preloading && _preloading->id() == fullId) {
_preloading = nullptr;
rebuildPreloadSources(StorySourcesList::NotHidden);
rebuildPreloadSources(StorySourcesList::Hidden);
continuePreloading();
}
_owner->refreshStoryItemViews(fullId);
}
return result;
}
const auto wasDeleted = _deleted.remove(fullId);
const auto result = stories.emplace(id, std::make_unique<Story>(
id,
peer,
StoryMedia{ *media },
data,
now
)).first->second.get();
if (const auto archive = lookupArchive(peer)) {
const auto added = archive->ids.list.emplace(id).second;
if (added) {
if (archive->total >= 0 && id > archive->lastId) {
++archive->total;
}
_archiveChanged.fire_copy(peer->id);
}
}
if (expired) {
_expiring.remove(expires, fullId);
applyExpired(fullId);
} else {
registerExpiring(expires, fullId);
}
if (wasDeleted) {
_owner->refreshStoryItemViews(fullId);
}
return result;
}
StoryIdDates Stories::parseAndApply(
not_null<PeerData*> peer,
const MTPstoryItem &story,
TimeId now) {
return story.match([&](const MTPDstoryItem &data) {
if (const auto story = parseAndApply(peer, data, now)) {
return story->idDates();
}
applyDeleted(peer, data.vid().v);
return StoryIdDates();
}, [&](const MTPDstoryItemSkipped &data) {
const auto expires = data.vexpire_date().v;
const auto expired = (expires <= now);
const auto fullId = FullStoryId{ peer->id, data.vid().v };
if (!expired) {
registerExpiring(expires, fullId);
} else if (!hasArchive(peer)) {
applyDeleted(peer, data.vid().v);
return StoryIdDates();
} else {
_expiring.remove(expires, fullId);
applyExpired(fullId);
}
return StoryIdDates{
data.vid().v,
data.vdate().v,
data.vexpire_date().v,
};
}, [&](const MTPDstoryItemDeleted &data) {
applyDeleted(peer, data.vid().v);
return StoryIdDates();
});
}
void Stories::updateDependentMessages(not_null<Data::Story*> story) {
const auto i = _dependentMessages.find(story);
if (i != end(_dependentMessages)) {
for (const auto &dependent : i->second) {
dependent->updateDependencyItem();
}
}
session().changes().storyUpdated(
story,
Data::StoryUpdate::Flag::Edited);
}
void Stories::registerDependentMessage(
not_null<HistoryItem*> dependent,
not_null<Data::Story*> dependency) {
_dependentMessages[dependency].emplace(dependent);
}
void Stories::unregisterDependentMessage(
not_null<HistoryItem*> dependent,
not_null<Data::Story*> dependency) {
const auto i = _dependentMessages.find(dependency);
if (i != end(_dependentMessages)) {
if (i->second.remove(dependent) && i->second.empty()) {
_dependentMessages.erase(i);
}
}
}
void Stories::savedStateChanged(not_null<Story*> story) {
const auto id = story->id();
const auto peer = story->peer()->id;
const auto pinned = story->pinned();
if (pinned) {
auto &saved = _saved[peer];
const auto added = saved.ids.list.emplace(id).second;
if (added) {
if (saved.total >= 0 && id > saved.lastId) {
++saved.total;
}
_savedChanged.fire_copy(peer);
}
} else if (const auto i = _saved.find(peer); i != end(_saved)) {
auto &saved = i->second;
if (saved.ids.list.remove(id)) {
if (saved.total > 0) {
--saved.total;
}
_savedChanged.fire_copy(peer);
}
}
}
void Stories::loadMore(StorySourcesList list) {
const auto index = static_cast<int>(list);
if (_loadMoreRequestId[index] || _sourcesLoaded[index]) {
return;
}
const auto hidden = (list == StorySourcesList::Hidden);
const auto api = &_owner->session().api();
using Flag = MTPstories_GetAllStories::Flag;
_loadMoreRequestId[index] = api->request(MTPstories_GetAllStories(
MTP_flags((hidden ? Flag::f_hidden : Flag())
| (_sourcesStates[index].isEmpty()
? Flag(0)
: (Flag::f_next | Flag::f_state))),
MTP_string(_sourcesStates[index])
)).done([=](const MTPstories_AllStories &result) {
_loadMoreRequestId[index] = 0;
result.match([&](const MTPDstories_allStories &data) {
_owner->processUsers(data.vusers());
_owner->processChats(data.vchats());
_sourcesStates[index] = qs(data.vstate());
_sourcesLoaded[index] = !data.is_has_more();
for (const auto &single : data.vpeer_stories().v) {
parseAndApply(single);
}
}, [](const MTPDstories_allStoriesNotModified &) {
});
result.match([&](const auto &data) {
apply(data.vstealth_mode());
});
preloadListsMore();
}).fail([=] {
_loadMoreRequestId[index] = 0;
}).send();
}
void Stories::preloadListsMore() {
if (_loadMoreRequestId[static_cast<int>(StorySourcesList::NotHidden)]
|| _loadMoreRequestId[static_cast<int>(StorySourcesList::Hidden)]) {
return;
}
const auto loading = [&](StorySourcesList list) {
return _loadMoreRequestId[static_cast<int>(list)] != 0;
};
const auto countLoaded = [&](StorySourcesList list) {
const auto index = static_cast<int>(list);
return _sourcesLoaded[index] || !_sourcesStates[index].isEmpty();
};
if (loading(StorySourcesList::NotHidden)
|| loading(StorySourcesList::Hidden)) {
return;
} else if (!countLoaded(StorySourcesList::NotHidden)) {
loadMore(StorySourcesList::NotHidden);
} else if (!countLoaded(StorySourcesList::Hidden)) {
loadMore(StorySourcesList::Hidden);
} else if (!archiveCountKnown(_owner->session().userPeerId())) {
archiveLoadMore(_owner->session().userPeerId());
}
}
void Stories::notifySourcesChanged(StorySourcesList list) {
_sourcesChanged[static_cast<int>(list)].fire({});
if (list == StorySourcesList::Hidden) {
pushHiddenCountsToFolder();
}
}
void Stories::pushHiddenCountsToFolder() {
const auto &list = sources(StorySourcesList::Hidden);
if (list.empty()) {
if (_folderForHidden) {
_folderForHidden->updateStoriesCount(0, 0);
}
return;
}
if (!_folderForHidden) {
_folderForHidden = _owner->folder(Folder::kId);
}
const auto count = int(list.size());
const auto unread = ranges::count_if(
list,
[](const StoriesSourceInfo &info) { return info.unreadCount > 0; });
_folderForHidden->updateStoriesCount(count, unread);
}
void Stories::sendResolveRequests() {
if (!_resolveSent.empty()) {
return;
}
auto leftToSend = kMaxResolveTogether;
auto byPeer = base::flat_map<PeerId, QVector<MTPint>>();
for (auto i = begin(_resolvePending); i != end(_resolvePending);) {
const auto peerId = i->first;
auto &ids = i->second;
auto &sent = _resolveSent[peerId];
if (ids.size() <= leftToSend) {
sent = base::take(ids);
i = _resolvePending.erase(i); // Invalidates `ids`.
leftToSend -= int(sent.size());
} else {
sent = {
std::make_move_iterator(begin(ids)),
std::make_move_iterator(begin(ids) + leftToSend)
};
ids.erase(begin(ids), begin(ids) + leftToSend);
leftToSend = 0;
}
auto &prepared = byPeer[peerId];
for (auto &[storyId, callbacks] : sent) {
prepared.push_back(MTP_int(storyId));
}
if (!leftToSend) {
break;
}
}
const auto api = &_owner->session().api();
for (auto &entry : byPeer) {
const auto peerId = entry.first;
auto &prepared = entry.second;
const auto finish = [=](PeerId peerId) {
const auto sent = _resolveSent.take(peerId);
Assert(sent.has_value());
for (const auto &[storyId, list] : *sent) {
finalizeResolve({ peerId, storyId });
for (const auto &callback : list) {
callback();
}
}
_itemsChanged.fire_copy(peerId);
if (_resolveSent.empty() && !_resolvePending.empty()) {
crl::on_main(&session(), [=] { sendResolveRequests(); });
}
};
const auto peer = _owner->session().data().peer(peerId);
api->request(MTPstories_GetStoriesByID(
peer->input,
MTP_vector<MTPint>(prepared)
)).done([=](const MTPstories_Stories &result) {
owner().processUsers(result.data().vusers());
owner().processChats(result.data().vchats());
processResolvedStories(peer, result.data().vstories().v);
finish(peer->id);
}).fail([=] {
finish(peerId);
}).send();
}
}
void Stories::processResolvedStories(
not_null<PeerData*> peer,
const QVector<MTPStoryItem> &list) {
const auto now = base::unixtime::now();
for (const auto &item : list) {
item.match([&](const MTPDstoryItem &data) {
if (!parseAndApply(peer, data, now)) {
applyDeleted(peer, data.vid().v);
}
}, [&](const MTPDstoryItemSkipped &data) {
LOG(("API Error: Unexpected storyItemSkipped in resolve."));
}, [&](const MTPDstoryItemDeleted &data) {
applyDeleted(peer, data.vid().v);
});
}
}
void Stories::finalizeResolve(FullStoryId id) {
const auto already = lookup(id);
if (!already.has_value() && already.error() == NoStory::Unknown) {
LOG(("API Error: Could not resolve story %1_%2"
).arg(id.peer.value
).arg(id.story));
applyDeleted(_owner->peer(id.peer), id.story);
}
}
void Stories::applyDeleted(not_null<PeerData*> peer, StoryId id) {
const auto fullId = FullStoryId{ peer->id, id };
applyRemovedFromActive(fullId);
if (const auto channel = peer->asChannel()) {
if (!hasArchive(channel)) {
_peersWithDeletedStories.emplace(channel->id);
}
}
_deleted.emplace(fullId);
const auto peerId = peer->id;
const auto i = _stories.find(peerId);
if (i != end(_stories)) {
const auto j = i->second.find(id);
if (j != end(i->second)) {
const auto &story
= _deletingStories[fullId]
= std::move(j->second);
_expiring.remove(story->expires(), story->fullId());
i->second.erase(j);
session().changes().storyUpdated(
story.get(),
UpdateFlag::Destroyed);
removeDependencyStory(story.get());
if (hasArchive(story->peer())) {
if (const auto k = _archive.find(peerId)
; k != end(_archive)) {
const auto archive = &k->second;
if (archive->ids.list.remove(id)) {
if (archive->total > 0) {
--archive->total;
}
_archiveChanged.fire_copy(peerId);
}
}
}
if (story->pinned()) {
if (const auto k = _saved.find(peerId); k != end(_saved)) {
const auto saved = &k->second;
if (saved->ids.list.remove(id)) {
if (saved->total > 0) {
--saved->total;
}
_savedChanged.fire_copy(peerId);
}
}
}
if (_preloading && _preloading->id() == fullId) {
_preloading = nullptr;
preloadFinished(fullId);
}
_owner->refreshStoryItemViews(fullId);
Assert(!_pollingSettings.contains(story.get()));
if (const auto j = _items.find(peerId); j != end(_items)) {
const auto k = j->second.find(id);
if (k != end(j->second)) {
Assert(!k->second.lock());
j->second.erase(k);
if (j->second.empty()) {
_items.erase(j);
}
}
}
if (i->second.empty()) {
_stories.erase(i);
}
_deletingStories.remove(fullId);
}
}
}
void Stories::applyExpired(FullStoryId id) {
if (const auto maybeStory = lookup(id)) {
const auto story = *maybeStory;
if (!hasArchive(story->peer()) && !story->pinned()) {
applyDeleted(story->peer(), id.story);
return;
}
}
applyRemovedFromActive(id);
}
void Stories::applyRemovedFromActive(FullStoryId id) {
const auto removeFromList = [&](StorySourcesList list) {
const auto index = static_cast<int>(list);
auto &sources = _sources[index];
const auto i = ranges::find(
sources,
id.peer,
&StoriesSourceInfo::id);
if (i != end(sources)) {
sources.erase(i);
notifySourcesChanged(list);
}
};
const auto i = _all.find(id.peer);
if (i != end(_all)) {
const auto j = i->second.ids.lower_bound(StoryIdDates{ id.story });
if (j != end(i->second.ids) && j->id == id.story) {
i->second.ids.erase(j);
const auto peer = i->second.peer;
if (i->second.ids.empty()) {
_all.erase(i);
removeFromList(StorySourcesList::NotHidden);
removeFromList(StorySourcesList::Hidden);
}
_sourceChanged.fire_copy(id.peer);
updatePeerStoriesState(peer);
}
}
}
void Stories::applyDeletedFromSources(PeerId id, StorySourcesList list) {
auto &sources = _sources[static_cast<int>(list)];
const auto i = ranges::find(
sources,
id,
&StoriesSourceInfo::id);
if (i != end(sources)) {
sources.erase(i);
}
notifySourcesChanged(list);
}
void Stories::removeDependencyStory(not_null<Story*> story) {
const auto i = _dependentMessages.find(story);
if (i != end(_dependentMessages)) {
const auto items = std::move(i->second);
_dependentMessages.erase(i);
for (const auto &dependent : items) {
dependent->dependencyStoryRemoved(story);
}
}
}
void Stories::sort(StorySourcesList list) {
const auto index = static_cast<int>(list);
auto &sources = _sources[index];
const auto self = _owner->session().userPeerId();
const auto changelogSenderId = UserData::kServiceNotificationsId;
const auto proj = [&](const StoriesSourceInfo &info) {
const auto key = int64(info.last)
+ (info.premium ? (int64(1) << 47) : 0)
+ ((info.id == changelogSenderId) ? (int64(1) << 47) : 0)
+ ((info.unreadCount > 0) ? (int64(1) << 49) : 0)
+ ((info.id == self) ? (int64(1) << 50) : 0);
return std::make_pair(key, info.id);
};
ranges::sort(sources, ranges::greater(), proj);
notifySourcesChanged(list);
preloadSourcesChanged(list);
}
std::shared_ptr<HistoryItem> Stories::lookupItem(not_null<Story*> story) {
const auto i = _items.find(story->peer()->id);
if (i == end(_items)) {
return nullptr;
}
const auto j = i->second.find(story->id());
if (j == end(i->second)) {
return nullptr;
}
return j->second.lock();
}
StealthMode Stories::stealthMode() const {
return _stealthMode.current();
}
rpl::producer<StealthMode> Stories::stealthModeValue() const {
return _stealthMode.value();
}
void Stories::activateStealthMode(Fn<void()> done) {
const auto api = &session().api();
using Flag = MTPstories_ActivateStealthMode::Flag;
api->request(MTPstories_ActivateStealthMode(
MTP_flags(Flag::f_past | Flag::f_future)
)).done([=](const MTPUpdates &result) {
api->applyUpdates(result);
if (done) done();
}).fail([=] {
if (done) done();
}).send();
}
void Stories::sendReaction(FullStoryId id, Data::ReactionId reaction) {
if (const auto maybeStory = lookup(id)) {
const auto story = *maybeStory;
story->setReactionId(reaction);
const auto api = &session().api();
api->request(MTPstories_SendReaction(
MTP_flags(0),
story->peer()->input,
MTP_int(id.story),
ReactionToMTP(reaction)
)).send();
}
}
std::shared_ptr<HistoryItem> Stories::resolveItem(not_null<Story*> story) {
auto &items = _items[story->peer()->id];
auto i = items.find(story->id());
if (i == end(items)) {
i = items.emplace(story->id()).first;
} else if (const auto result = i->second.lock()) {
return result;
}
const auto history = _owner->history(story->peer());
auto result = std::shared_ptr<HistoryItem>(
history->makeMessage(story).get(),
HistoryItem::Destroyer());
i->second = result;
return result;
}
std::shared_ptr<HistoryItem> Stories::resolveItem(FullStoryId id) {
const auto story = lookup(id);
return story ? resolveItem(*story) : std::shared_ptr<HistoryItem>();
}
const StoriesSource *Stories::source(PeerId id) const {
const auto i = _all.find(id);
return (i != end(_all)) ? &i->second : nullptr;
}
const std::vector<StoriesSourceInfo> &Stories::sources(
StorySourcesList list) const {
return _sources[static_cast<int>(list)];
}
bool Stories::sourcesLoaded(StorySourcesList list) const {
return _sourcesLoaded[static_cast<int>(list)];
}
rpl::producer<> Stories::sourcesChanged(StorySourcesList list) const {
return _sourcesChanged[static_cast<int>(list)].events();
}
rpl::producer<PeerId> Stories::sourceChanged() const {
return _sourceChanged.events();
}
rpl::producer<PeerId> Stories::itemsChanged() const {
return _itemsChanged.events();
}
base::expected<not_null<Story*>, NoStory> Stories::lookup(
FullStoryId id) const {
const auto i = _stories.find(id.peer);
if (i != end(_stories)) {
const auto j = i->second.find(id.story);
if (j != end(i->second)) {
return j->second.get();
}
}
return base::make_unexpected(
_deleted.contains(id) ? NoStory::Deleted : NoStory::Unknown);
}
void Stories::resolve(FullStoryId id, Fn<void()> done, bool force) {
if (!force) {
const auto already = lookup(id);
if (already.has_value() || already.error() != NoStory::Unknown) {
if (done) {
done();
}
return;
}
}
if (const auto i = _resolveSent.find(id.peer); i != end(_resolveSent)) {
if (const auto j = i->second.find(id.story); j != end(i->second)) {
if (done) {
j->second.push_back(std::move(done));
}
return;
}
}
auto &ids = _resolvePending[id.peer];
if (ids.empty()) {
crl::on_main(&session(), [=] {
sendResolveRequests();
});
}
auto &callbacks = ids[id.story];
if (done) {
callbacks.push_back(std::move(done));
}
}
void Stories::loadAround(FullStoryId id, StoriesContext context) {
if (v::is<StoriesContextSingle>(context.data)) {
return;
} else if (v::is<StoriesContextSaved>(context.data)
|| v::is<StoriesContextArchive>(context.data)) {
return;
}
const auto i = _all.find(id.peer);
if (i == end(_all)) {
return;
}
const auto j = i->second.ids.lower_bound(StoryIdDates{ id.story });
if (j == end(i->second.ids) || j->id != id.story) {
return;
}
const auto ignore = [&] {
const auto side = kIgnorePreloadAroundIfLoaded;
const auto left = ranges::min(int(j - begin(i->second.ids)), side);
const auto right = ranges::min(int(end(i->second.ids) - j), side);
for (auto k = j - left; k != j + right; ++k) {
const auto maybeStory = lookup({ id.peer, k->id });
if (!maybeStory && maybeStory.error() == NoStory::Unknown) {
return false;
}
}
return true;
}();
if (ignore) {
return;
}
const auto side = kPreloadAroundCount;
const auto left = ranges::min(int(j - begin(i->second.ids)), side);
const auto right = ranges::min(int(end(i->second.ids) - j), side);
const auto from = j - left;
const auto till = j + right;
for (auto k = from; k != till; ++k) {
resolve({ id.peer, k->id }, nullptr);
}
}
void Stories::markAsRead(FullStoryId id, bool viewed) {
if (id.peer == _owner->session().userPeerId()) {
return;
}
const auto maybeStory = lookup(id);
if (!maybeStory) {
return;
}
const auto story = *maybeStory;
if (story->expired() && story->pinned()) {
_incrementViewsPending[id.peer].emplace(id.story);
if (!_incrementViewsTimer.isActive()) {
_incrementViewsTimer.callOnce(kIncrementViewsDelay);
}
}
if (!bumpReadTill(id.peer, id.story)) {
return;
}
if (!_markReadPending.contains(id.peer)) {
sendMarkAsReadRequests();
}
_markReadPending.emplace(id.peer);
_markReadTimer.callOnce(kMarkAsReadDelay);
}
bool Stories::bumpReadTill(PeerId peerId, StoryId maxReadTill) {
auto &till = _readTill[peerId];
auto refreshItems = std::vector<StoryId>();
const auto guard = gsl::finally([&] {
for (const auto id : refreshItems) {
_owner->refreshStoryItemViews({ peerId, id });
}
});
if (till < maxReadTill) {
const auto from = till;
till = maxReadTill;
updatePeerStoriesState(_owner->peer(peerId));
const auto i = _stories.find(peerId);
if (i != end(_stories)) {
refreshItems = ranges::make_subrange(
i->second.lower_bound(from + 1),
i->second.lower_bound(till + 1)
) | ranges::views::transform([=](const auto &pair) {
_owner->session().changes().storyUpdated(
pair.second.get(),
StoryUpdate::Flag::MarkRead);
return pair.first;
}) | ranges::to_vector;
}
}
const auto i = _all.find(peerId);
if (i == end(_all) || i->second.readTill >= maxReadTill) {
return false;
}
const auto wasUnreadCount = i->second.unreadCount();
i->second.readTill = maxReadTill;
const auto nowUnreadCount = i->second.unreadCount();
if (wasUnreadCount != nowUnreadCount) {
const auto refreshInList = [&](StorySourcesList list) {
auto &sources = _sources[static_cast<int>(list)];
const auto i = ranges::find(
sources,
peerId,
&StoriesSourceInfo::id);
if (i != end(sources)) {
i->unreadCount = nowUnreadCount;
sort(list);
}
};
refreshInList(StorySourcesList::NotHidden);
refreshInList(StorySourcesList::Hidden);
}
return true;
}
void Stories::toggleHidden(
PeerId peerId,
bool hidden,
std::shared_ptr<Ui::Show> show) {
const auto peer = _owner->peer(peerId);
const auto justRemove = peer->isServiceUser() && hidden;
if (peer->hasStoriesHidden() != hidden) {
if (!justRemove) {
peer->setStoriesHidden(hidden);
}
session().api().request(MTPstories_TogglePeerStoriesHidden(
peer->input,
MTP_bool(hidden)
)).send();
}
const auto name = peer->shortName();
const auto guard = gsl::finally([&] {
if (show && !justRemove) {
const auto phrase = hidden
? tr::lng_stories_hidden_to_contacts
: tr::lng_stories_shown_in_chats;
show->showToast(phrase(
tr::now,
lt_user,
Ui::Text::Bold(name),
Ui::Text::RichLangValue));
}
});
if (justRemove) {
apply(peer, nullptr);
return;
}
const auto i = _all.find(peerId);
if (i == end(_all)) {
return;
}
i->second.hidden = hidden;
const auto info = i->second.info();
const auto main = static_cast<int>(StorySourcesList::NotHidden);
const auto other = static_cast<int>(StorySourcesList::Hidden);
const auto proj = &StoriesSourceInfo::id;
if (hidden) {
const auto i = ranges::find(_sources[main], peerId, proj);
if (i != end(_sources[main])) {
_sources[main].erase(i);
notifySourcesChanged(StorySourcesList::NotHidden);
preloadSourcesChanged(StorySourcesList::NotHidden);
}
const auto j = ranges::find(_sources[other], peerId, proj);
if (j == end(_sources[other])) {
_sources[other].push_back(info);
} else {
*j = info;
}
sort(StorySourcesList::Hidden);
} else {
const auto i = ranges::find(_sources[other], peerId, proj);
if (i != end(_sources[other])) {
_sources[other].erase(i);
notifySourcesChanged(StorySourcesList::Hidden);
preloadSourcesChanged(StorySourcesList::Hidden);
}
const auto j = ranges::find(_sources[main], peerId, proj);
if (j == end(_sources[main])) {
_sources[main].push_back(info);
} else {
*j = info;
}
sort(StorySourcesList::NotHidden);
}
}
void Stories::sendMarkAsReadRequest(
not_null<PeerData*> peer,
StoryId tillId) {
const auto peerId = peer->id;
_markReadRequests.emplace(peerId);
const auto finish = [=] {
_markReadRequests.remove(peerId);
if (!_markReadTimer.isActive()
&& _markReadPending.contains(peerId)) {
sendMarkAsReadRequests();
}
checkQuitPreventFinished();
};
const auto api = &_owner->session().api();
api->request(MTPstories_ReadStories(
peer->input,
MTP_int(tillId)
)).done(finish).fail(finish).send();
}
void Stories::checkQuitPreventFinished() {
if (_markReadRequests.empty() && _incrementViewsRequests.empty()) {
if (Core::Quitting()) {
LOG(("Stories doesn't prevent quit any more."));
}
Core::App().quitPreventFinished();
}
}
void Stories::sendMarkAsReadRequests() {
_markReadTimer.cancel();
for (auto i = begin(_markReadPending); i != end(_markReadPending);) {
const auto peerId = *i;
if (_markReadRequests.contains(peerId)) {
++i;
continue;
}
const auto j = _all.find(peerId);
if (j != end(_all)) {
sendMarkAsReadRequest(j->second.peer, j->second.readTill);
}
i = _markReadPending.erase(i);
}
}
void Stories::sendIncrementViewsRequests() {
if (_incrementViewsPending.empty()) {
return;
}
auto ids = QVector<MTPint>();
struct Prepared {
PeerId peer = 0;
QVector<MTPint> ids;
};
auto prepared = std::vector<Prepared>();
for (const auto &[peer, ids] : _incrementViewsPending) {
if (_incrementViewsRequests.contains(peer)) {
continue;
}
prepared.push_back({ .peer = peer });
for (const auto &id : ids) {
prepared.back().ids.push_back(MTP_int(id));
}
}
const auto api = &_owner->session().api();
for (auto &[peer, ids] : prepared) {
_incrementViewsRequests.emplace(peer);
const auto finish = [=, peer = peer] {
_incrementViewsRequests.remove(peer);
if (!_incrementViewsTimer.isActive()
&& _incrementViewsPending.contains(peer)) {
sendIncrementViewsRequests();
}
checkQuitPreventFinished();
};
api->request(MTPstories_IncrementStoryViews(
_owner->peer(peer)->input,
MTP_vector<MTPint>(std::move(ids))
)).done(finish).fail(finish).send();
_incrementViewsPending.remove(peer);
}
}
void Stories::loadViewsSlice(
not_null<PeerData*> peer,
StoryId id,
QString offset,
Fn<void(StoryViews)> done) {
Expects(peer->isSelf() || !done);
if (_viewsStoryPeer == peer
&& _viewsStoryId == id
&& _viewsOffset == offset
&& (!offset.isEmpty() || _viewsRequestId)) {
if (_viewsRequestId) {
_viewsDone = std::move(done);
}
return;
}
_viewsStoryPeer = peer;
_viewsStoryId = id;
_viewsOffset = offset;
_viewsDone = std::move(done);
if (peer->isSelf()) {
sendViewsSliceRequest();
} else {
sendViewsCountsRequest();
}
}
void Stories::sendViewsSliceRequest() {
Expects(_viewsStoryPeer != nullptr);
Expects(_viewsStoryPeer->isSelf());
using Flag = MTPstories_GetStoryViewsList::Flag;
const auto api = &_owner->session().api();
_owner->session().api().request(_viewsRequestId).cancel();
_viewsRequestId = api->request(MTPstories_GetStoryViewsList(
MTP_flags(Flag::f_reactions_first),
_viewsStoryPeer->input,
MTPstring(), // q
MTP_int(_viewsStoryId),
MTP_string(_viewsOffset),
MTP_int(_viewsDone ? kViewsPerPage : kPollingViewsPerPage)
)).done([=](const MTPstories_StoryViewsList &result) {
_viewsRequestId = 0;
const auto &data = result.data();
auto slice = StoryViews{
.nextOffset = data.vnext_offset().value_or_empty(),
.reactions = data.vreactions_count().v,
.total = data.vcount().v,
};
_owner->processUsers(data.vusers());
slice.list.reserve(data.vviews().v.size());
for (const auto &view : data.vviews().v) {
slice.list.push_back({
.peer = _owner->peer(peerFromUser(view.data().vuser_id())),
.reaction = (view.data().vreaction()
? ReactionFromMTP(*view.data().vreaction())
: Data::ReactionId()),
.date = view.data().vdate().v,
});
}
const auto fullId = FullStoryId{
.peer = _owner->session().userPeerId(),
.story = _viewsStoryId,
};
if (const auto story = lookup(fullId)) {
(*story)->applyViewsSlice(_viewsOffset, slice);
}
if (const auto done = base::take(_viewsDone)) {
done(std::move(slice));
}
}).fail([=] {
_viewsRequestId = 0;
if (const auto done = base::take(_viewsDone)) {
done({});
}
}).send();
}
void Stories::sendViewsCountsRequest() {
Expects(_viewsStoryPeer != nullptr);
Expects(!_viewsDone);
const auto api = &_owner->session().api();
_owner->session().api().request(_viewsRequestId).cancel();
_viewsRequestId = api->request(MTPstories_GetStoriesViews(
_viewsStoryPeer->input,
MTP_vector<MTPint>(1, MTP_int(_viewsStoryId))
)).done([=](const MTPstories_StoryViews &result) {
_viewsRequestId = 0;
const auto &data = result.data();
_owner->processUsers(data.vusers());
if (data.vviews().v.size() == 1) {
const auto fullId = FullStoryId{
_viewsStoryPeer->id,
_viewsStoryId,
};
if (const auto story = lookup(fullId)) {
(*story)->applyViewsCounts(data.vviews().v.front().data());
}
}
}).fail([=] {
_viewsRequestId = 0;
}).send();
}
bool Stories::hasArchive(not_null<PeerData*> peer) const {
if (peer->isSelf()) {
return true;
} else if (const auto channel = peer->asChannel()) {
return channel->canEditStories();
}
return false;
}
const StoriesIds &Stories::archive(PeerId peerId) const {
static const auto empty = StoriesIds();
const auto i = _archive.find(peerId);
return (i != end(_archive)) ? i->second.ids : empty;
}
rpl::producer<PeerId> Stories::archiveChanged() const {
return _archiveChanged.events();
}
int Stories::archiveCount(PeerId peerId) const {
const auto i = _archive.find(peerId);
return (i != end(_archive)) ? i->second.total : 0;
}
bool Stories::archiveCountKnown(PeerId peerId) const {
const auto i = _archive.find(peerId);
return (i != end(_archive)) && (i->second.total >= 0);
}
bool Stories::archiveLoaded(PeerId peerId) const {
const auto i = _archive.find(peerId);
return (i != end(_archive)) && i->second.loaded;
}
const StoriesIds &Stories::saved(PeerId peerId) const {
static const auto empty = StoriesIds();
const auto i = _saved.find(peerId);
return (i != end(_saved)) ? i->second.ids : empty;
}
rpl::producer<PeerId> Stories::savedChanged() const {
return _savedChanged.events();
}
int Stories::savedCount(PeerId peerId) const {
const auto i = _saved.find(peerId);
return (i != end(_saved)) ? i->second.total : 0;
}
bool Stories::savedCountKnown(PeerId peerId) const {
const auto i = _saved.find(peerId);
return (i != end(_saved)) && (i->second.total >= 0);
}
bool Stories::savedLoaded(PeerId peerId) const {
const auto i = _saved.find(peerId);
return (i != end(_saved)) && i->second.loaded;
}
void Stories::archiveLoadMore(PeerId peerId) {
const auto peer = _owner->peer(peerId);
const auto archive = lookupArchive(peer);
if (!archive || archive->requestId || archive->loaded) {
return;
}
const auto api = &_owner->session().api();
archive->requestId = api->request(MTPstories_GetStoriesArchive(
peer->input,
MTP_int(archive->lastId),
MTP_int(archive->lastId ? kArchivePerPage : kArchiveFirstPerPage)
)).done([=](const MTPstories_Stories &result) {
const auto archive = lookupArchive(peer);
if (!archive) {
return;
}
archive->requestId = 0;
const auto &data = result.data();
const auto now = base::unixtime::now();
archive->total = data.vcount().v;
for (const auto &story : data.vstories().v) {
const auto id = story.match([&](const auto &id) {
return id.vid().v;
});
archive->ids.list.emplace(id);
archive->lastId = id;
if (!parseAndApply(peer, story, now)) {
archive->ids.list.remove(id);
if (archive->total > 0) {
--archive->total;
}
}
}
const auto ids = int(archive->ids.list.size());
archive->loaded = data.vstories().v.empty();
archive->total = archive->loaded ? ids : std::max(archive->total, ids);
_archiveChanged.fire_copy(peerId);
}).fail([=] {
const auto archive = lookupArchive(peer);
if (!archive) {
return;
}
archive->requestId = 0;
archive->loaded = true;
archive->total = int(archive->ids.list.size());
_archiveChanged.fire_copy(peerId);
}).send();
}
void Stories::savedLoadMore(PeerId peerId) {
auto &saved = _saved[peerId];
if (saved.requestId || saved.loaded) {
return;
}
const auto api = &_owner->session().api();
const auto peer = _owner->peer(peerId);
saved.requestId = api->request(MTPstories_GetPinnedStories(
peer->input,
MTP_int(saved.lastId),
MTP_int(saved.lastId ? kSavedPerPage : kSavedFirstPerPage)
)).done([=](const MTPstories_Stories &result) {
auto &saved = _saved[peerId];
saved.requestId = 0;
const auto &data = result.data();
const auto now = base::unixtime::now();
saved.total = data.vcount().v;
for (const auto &story : data.vstories().v) {
const auto id = story.match([&](const auto &id) {
return id.vid().v;
});
saved.ids.list.emplace(id);
saved.lastId = id;
if (!parseAndApply(peer, story, now)) {
saved.ids.list.remove(id);
if (saved.total > 0) {
--saved.total;
}
}
}
const auto ids = int(saved.ids.list.size());
saved.loaded = data.vstories().v.empty();
saved.total = saved.loaded ? ids : std::max(saved.total, ids);
_savedChanged.fire_copy(peerId);
}).fail([=] {
auto &saved = _saved[peerId];
saved.requestId = 0;
saved.loaded = true;
saved.total = int(saved.ids.list.size());
_savedChanged.fire_copy(peerId);
}).send();
}
void Stories::deleteList(const std::vector<FullStoryId> &ids) {
if (ids.empty()) {
return;
}
const auto peer = session().data().peer(ids.front().peer);
auto list = QVector<MTPint>();
list.reserve(ids.size());
for (const auto &id : ids) {
if (id.peer == peer->id) {
list.push_back(MTP_int(id.story));
}
}
const auto api = &_owner->session().api();
api->request(MTPstories_DeleteStories(
peer->input,
MTP_vector<MTPint>(list)
)).done([=](const MTPVector<MTPint> &result) {
for (const auto &id : result.v) {
applyDeleted(peer, id.v);
}
}).send();
}
void Stories::togglePinnedList(
const std::vector<FullStoryId> &ids,
bool pinned) {
if (ids.empty()) {
return;
}
const auto peer = session().data().peer(ids.front().peer);
auto list = QVector<MTPint>();
list.reserve(ids.size());
for (const auto &id : ids) {
if (id.peer == peer->id) {
list.push_back(MTP_int(id.story));
}
}
if (list.empty()) {
return;
}
const auto api = &_owner->session().api();
api->request(MTPstories_TogglePinned(
peer->input,
MTP_vector<MTPint>(list),
MTP_bool(pinned)
)).done([=](const MTPVector<MTPint> &result) {
const auto peerId = peer->id;
auto &saved = _saved[peerId];
const auto loaded = saved.loaded;
const auto lastId = !saved.ids.list.empty()
? saved.ids.list.back()
: saved.lastId
? saved.lastId
: std::numeric_limits<StoryId>::max();
auto dirty = false;
for (const auto &id : result.v) {
if (const auto maybeStory = lookup({ peerId, id.v })) {
const auto story = *maybeStory;
story->setPinned(pinned);
if (pinned) {
const auto add = loaded || (id.v >= lastId);
if (!add) {
dirty = true;
} else if (saved.ids.list.emplace(id.v).second) {
if (saved.total >= 0) {
++saved.total;
}
}
} else if (saved.ids.list.remove(id.v)) {
if (saved.total > 0) {
--saved.total;
}
} else if (!loaded) {
dirty = true;
}
} else if (!loaded) {
dirty = true;
}
}
if (dirty) {
savedLoadMore(peerId);
} else {
_savedChanged.fire_copy(peerId);
}
}).send();
}
void Stories::report(
std::shared_ptr<Ui::Show> show,
FullStoryId id,
Ui::ReportReason reason,
QString text) {
if (const auto maybeStory = lookup(id)) {
const auto story = *maybeStory;
Api::SendReport(show, story->peer(), reason, text, story->id());
}
}
bool Stories::isQuitPrevent() {
if (!_markReadPending.empty()) {
sendMarkAsReadRequests();
}
if (!_incrementViewsPending.empty()) {
sendIncrementViewsRequests();
}
if (_markReadRequests.empty() && _incrementViewsRequests.empty()) {
return false;
}
LOG(("Stories prevents quit, marking as read..."));
return true;
}
void Stories::incrementPreloadingMainSources() {
Expects(_preloadingMainSourcesCounter >= 0);
if (++_preloadingMainSourcesCounter == 1
&& rebuildPreloadSources(StorySourcesList::NotHidden)) {
continuePreloading();
}
}
void Stories::decrementPreloadingMainSources() {
Expects(_preloadingMainSourcesCounter > 0);
if (!--_preloadingMainSourcesCounter
&& rebuildPreloadSources(StorySourcesList::NotHidden)) {
continuePreloading();
}
}
void Stories::incrementPreloadingHiddenSources() {
Expects(_preloadingHiddenSourcesCounter >= 0);
if (++_preloadingHiddenSourcesCounter == 1
&& rebuildPreloadSources(StorySourcesList::Hidden)) {
continuePreloading();
}
}
void Stories::decrementPreloadingHiddenSources() {
Expects(_preloadingHiddenSourcesCounter > 0);
if (!--_preloadingHiddenSourcesCounter
&& rebuildPreloadSources(StorySourcesList::Hidden)) {
continuePreloading();
}
}
void Stories::setPreloadingInViewer(std::vector<FullStoryId> ids) {
ids.erase(ranges::remove_if(ids, [&](FullStoryId id) {
return _preloaded.contains(id);
}), end(ids));
if (_toPreloadViewer != ids) {
_toPreloadViewer = std::move(ids);
continuePreloading();
}
}
std::optional<Stories::PeerSourceState> Stories::peerSourceState(
not_null<PeerData*> peer,
StoryId storyMaxId) {
const auto i = _readTill.find(peer->id);
if (_readTillReceived || (i != end(_readTill))) {
return PeerSourceState{
.maxId = storyMaxId,
.readTill = std::min(
storyMaxId,
(i != end(_readTill)) ? i->second : 0),
};
}
requestReadTills();
_pendingPeerStateMaxId[peer] = storyMaxId;
return std::nullopt;
}
void Stories::requestReadTills() {
if (_readTillReceived || _readTillsRequestId) {
return;
}
const auto api = &_owner->session().api();
_readTillsRequestId = api->request(MTPstories_GetAllReadPeerStories(
)).done([=](const MTPUpdates &result) {
_readTillReceived = true;
api->applyUpdates(result);
for (auto &[peer, maxId] : base::take(_pendingPeerStateMaxId)) {
updatePeerStoriesState(peer);
}
for (const auto &storyId : base::take(_pendingReadTillItems)) {
_owner->refreshStoryItemViews(storyId);
}
}).send();
}
bool Stories::isUnread(not_null<Story*> story) {
const auto till = _readTill.find(story->peer()->id);
if (till == end(_readTill) && !_readTillReceived) {
requestReadTills();
_pendingReadTillItems.emplace(story->fullId());
return false;
}
const auto readTill = (till != end(_readTill)) ? till->second : 0;
return (story->id() > readTill);
}
void Stories::registerPolling(not_null<Story*> story, Polling polling) {
auto &settings = _pollingSettings[story];
switch (polling) {
case Polling::Chat: ++settings.chat; break;
case Polling::Viewer:
++settings.viewer;
if ((story->peer()->isSelf() || story->peer()->isChannel())
&& _pollingViews.emplace(story).second) {
sendPollingViewsRequests();
}
break;
}
maybeSchedulePolling(story, settings, base::unixtime::now());
}
void Stories::unregisterPolling(not_null<Story*> story, Polling polling) {
const auto i = _pollingSettings.find(story);
Assert(i != end(_pollingSettings));
switch (polling) {
case Polling::Chat:
Assert(i->second.chat > 0);
--i->second.chat;
break;
case Polling::Viewer:
Assert(i->second.viewer > 0);
if (!--i->second.viewer) {
_pollingViews.remove(story);
if (_pollingViews.empty()) {
_pollingViewsTimer.cancel();
}
}
break;
}
if (!i->second.chat && !i->second.viewer) {
_pollingSettings.erase(i);
}
}
bool Stories::registerPolling(FullStoryId id, Polling polling) {
if (const auto maybeStory = lookup(id)) {
registerPolling(*maybeStory, polling);
return true;
}
return false;
}
void Stories::unregisterPolling(FullStoryId id, Polling polling) {
if (const auto maybeStory = lookup(id)) {
unregisterPolling(*maybeStory, polling);
} else if (const auto i = _deletingStories.find(id)
; i != end(_deletingStories)) {
unregisterPolling(i->second.get(), polling);
} else {
Unexpected("Couldn't find story for unregistering polling.");
}
}
int Stories::pollingInterval(const PollingSettings &settings) const {
return settings.viewer ? kPollingIntervalViewer : kPollingIntervalChat;
}
void Stories::maybeSchedulePolling(
not_null<Story*> story,
const PollingSettings &settings,
TimeId now) {
const auto last = story->lastUpdateTime();
const auto next = last + pollingInterval(settings);
const auto left = std::max(next - now, 0) * crl::time(1000) + 1;
if (!_pollingTimer.isActive() || _pollingTimer.remainingTime() > left) {
_pollingTimer.callOnce(left);
}
}
void Stories::sendPollingRequests() {
auto min = 0;
const auto now = base::unixtime::now();
for (const auto &[story, settings] : _pollingSettings) {
const auto last = story->lastUpdateTime();
const auto next = last + pollingInterval(settings);
if (now >= next) {
resolve(story->fullId(), nullptr, true);
} else {
const auto left = (next - now) * crl::time(1000) + 1;
if (!min || left < min) {
min = left;
}
}
}
if (min > 0) {
_pollingTimer.callOnce(min);
}
}
void Stories::sendPollingViewsRequests() {
if (_pollingViews.empty()) {
return;
} else if (!_viewsRequestId) {
Assert(_viewsDone == nullptr);
const auto story = _pollingViews.front();
loadViewsSlice(story->peer(), story->id(), QString(), nullptr);
}
_pollingViewsTimer.callOnce(kPollViewsInterval);
}
void Stories::updatePeerStoriesState(not_null<PeerData*> peer) {
const auto till = _readTill.find(peer->id);
const auto readTill = (till != end(_readTill)) ? till->second : 0;
const auto pendingMaxId = [&] {
const auto j = _pendingPeerStateMaxId.find(peer);
return (j != end(_pendingPeerStateMaxId)) ? j->second : 0;
};
const auto i = _all.find(peer->id);
const auto max = (i != end(_all))
? (i->second.ids.empty() ? 0 : i->second.ids.back().id)
: pendingMaxId();
peer->setStoriesState(!max
? PeerData::StoriesState::None
: (max <= readTill)
? PeerData::StoriesState::HasRead
: PeerData::StoriesState::HasUnread);
}
void Stories::preloadSourcesChanged(StorySourcesList list) {
if (rebuildPreloadSources(list)) {
continuePreloading();
}
}
bool Stories::rebuildPreloadSources(StorySourcesList list) {
const auto index = static_cast<int>(list);
const auto &counter = (list == StorySourcesList::Hidden)
? _preloadingHiddenSourcesCounter
: _preloadingMainSourcesCounter;
if (!counter) {
return !base::take(_toPreloadSources[index]).empty();
}
auto now = std::vector<FullStoryId>();
auto processed = 0;
for (const auto &source : _sources[index]) {
const auto i = _all.find(source.id);
if (i != end(_all)) {
if (const auto id = i->second.toOpen().id) {
const auto fullId = FullStoryId{ source.id, id };
if (!_preloaded.contains(fullId)) {
now.push_back(fullId);
}
}
}
if (++processed >= kMaxPreloadSources) {
break;
}
}
if (now != _toPreloadSources[index]) {
_toPreloadSources[index] = std::move(now);
return true;
}
return false;
}
void Stories::continuePreloading() {
const auto now = _preloading ? _preloading->id() : FullStoryId();
if (now) {
if (shouldContinuePreload(now)) {
return;
}
_preloading = nullptr;
}
const auto id = nextPreloadId();
if (!id) {
return;
} else if (const auto maybeStory = lookup(id)) {
startPreloading(*maybeStory);
}
}
bool Stories::shouldContinuePreload(FullStoryId id) const {
const auto first = ranges::views::concat(
_toPreloadViewer,
_toPreloadSources[static_cast<int>(StorySourcesList::Hidden)],
_toPreloadSources[static_cast<int>(StorySourcesList::NotHidden)]
) | ranges::views::take(kStillPreloadFromFirst);
return ranges::contains(first, id);
}
FullStoryId Stories::nextPreloadId() const {
const auto hidden = static_cast<int>(StorySourcesList::Hidden);
const auto main = static_cast<int>(StorySourcesList::NotHidden);
const auto result = !_toPreloadViewer.empty()
? _toPreloadViewer.front()
: !_toPreloadSources[hidden].empty()
? _toPreloadSources[hidden].front()
: !_toPreloadSources[main].empty()
? _toPreloadSources[main].front()
: FullStoryId();
Ensures(!_preloaded.contains(result));
return result;
}
void Stories::startPreloading(not_null<Story*> story) {
Expects(!_preloaded.contains(story->fullId()));
const auto id = story->fullId();
auto preloading = std::make_unique<StoryPreload>(story, [=] {
_preloading = nullptr;
preloadFinished(id, true);
});
if (!_preloaded.contains(id)) {
_preloading = std::move(preloading);
}
}
void Stories::preloadFinished(FullStoryId id, bool markAsPreloaded) {
for (auto &sources : _toPreloadSources) {
sources.erase(ranges::remove(sources, id), end(sources));
}
_toPreloadViewer.erase(
ranges::remove(_toPreloadViewer, id),
end(_toPreloadViewer));
if (markAsPreloaded) {
_preloaded.emplace(id);
}
crl::on_main(this, [=] {
continuePreloading();
});
}
} // namespace Data