tdesktop/Telegram/SourceFiles/data/data_stories.cpp

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/*
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"
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#include "core/application.h"
#include "data/data_changes.h"
#include "data/data_document.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;
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constexpr auto kIgnorePreloadAroundIfLoaded = 15;
constexpr auto kPreloadAroundCount = 30;
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constexpr auto kMarkAsReadDelay = 3 * crl::time(1000);
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constexpr auto kIncrementViewsDelay = 5 * crl::time(1000);
constexpr auto kArchiveFirstPerPage = 30;
constexpr auto kArchivePerPage = 100;
constexpr auto kSavedFirstPerPage = 30;
constexpr auto kSavedPerPage = 100;
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constexpr auto kMaxPreloadSources = 10;
constexpr auto kStillPreloadFromFirst = 3;
using UpdateFlag = StoryUpdate::Flag;
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[[nodiscard]] std::optional<StoryMedia> ParseMedia(
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not_null<Session*> owner,
const MTPMessageMedia &media) {
return media.match([&](const MTPDmessageMediaPhoto &data)
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-> 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)
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-> 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
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StoriesSourceInfo StoriesSource::info() const {
return {
.id = user->id,
.last = ids.empty() ? 0 : ids.back().date,
.unread = unread(),
.premium = user->isPremium(),
.hidden = hidden,
};
}
bool StoriesSource::unread() const {
return !ids.empty() && readTill < ids.back().id;
}
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StoryIdDates StoriesSource::toOpen() const {
if (ids.empty()) {
return {};
}
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const auto i = ids.lower_bound(StoryIdDates{ readTill + 1 });
return (i != end(ids)) ? *i : ids.front();
}
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Stories::Stories(not_null<Session*> owner)
: _owner(owner)
, _expireTimer([=] { processExpired(); })
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, _markReadTimer([=] { sendMarkAsReadRequests(); })
, _incrementViewsTimer([=] { sendIncrementViewsRequests(); }) {
}
Stories::~Stories() {
}
Session &Stories::owner() const {
return *_owner;
}
Main::Session &Stories::session() const {
return _owner->session();
}
void Stories::apply(const MTPDupdateStory &data) {
const auto peerId = peerFromUser(data.vuser_id());
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const auto user = not_null(_owner->peer(peerId)->asUser());
const auto now = base::unixtime::now();
const auto idDates = parseAndApply(user, data.vstory(), now);
if (!idDates) {
return;
}
const auto expired = (idDates.expires <= now);
if (expired) {
applyExpired({ peerId, idDates.id });
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return;
}
const auto i = _all.find(peerId);
if (i == end(_all)) {
requestUserStories(user);
return;
} else if (i->second.ids.contains(idDates)) {
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return;
}
const auto wasInfo = i->second.info();
i->second.ids.emplace(idDates);
const auto nowInfo = i->second.info();
if (user->isSelf() && i->second.readTill < idDates.id) {
i->second.readTill = idDates.id;
}
if (wasInfo == nowInfo) {
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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;
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sort(list);
}
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};
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if (user->hasStoriesHidden()) {
refreshInList(StorySourcesList::Hidden);
} else {
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refreshInList(StorySourcesList::NotHidden);
}
_sourceChanged.fire_copy(peerId);
}
void Stories::apply(not_null<PeerData*> peer, const MTPUserStories *data) {
if (!data) {
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applyDeletedFromSources(peer->id, StorySourcesList::NotHidden);
applyDeletedFromSources(peer->id, StorySourcesList::Hidden);
_all.erase(peer->id);
_sourceChanged.fire_copy(peer->id);
} else {
parseAndApply(*data);
}
}
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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;
}
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void Stories::requestUserStories(not_null<UserData*> user) {
if (!_requestingUserStories.emplace(user).second) {
return;
}
_owner->session().api().request(MTPstories_GetUserStories(
user->inputUser
)).done([=](const MTPstories_UserStories &result) {
_requestingUserStories.remove(user);
const auto &data = result.data();
_owner->processUsers(data.vusers());
parseAndApply(data.vstories());
}).fail([=] {
_requestingUserStories.remove(user);
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applyDeletedFromSources(user->id, StorySourcesList::NotHidden);
applyDeletedFromSources(user->id, StorySourcesList::Hidden);
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}).send();
}
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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();
}
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}
void Stories::parseAndApply(const MTPUserStories &stories) {
const auto &data = stories.data();
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const auto peerId = peerFromUser(data.vuser_id());
const auto readTill = data.vmax_read_id().value_or_empty();
const auto count = int(data.vstories().v.size());
const auto user = _owner->peer(peerId)->asUser();
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auto result = StoriesSource{
.user = user,
.readTill = readTill,
.hidden = user->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.user, story, now)) {
result.ids.emplace(id);
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}
}
if (result.ids.empty()) {
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applyDeletedFromSources(peerId, StorySourcesList::NotHidden);
applyDeletedFromSources(peerId, StorySourcesList::Hidden);
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return;
} else if (user->isSelf()) {
result.readTill = result.ids.back().id;
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}
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 {
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_all.emplace(peerId, std::move(result));
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}
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 {
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*i = info;
}
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sort(list);
};
if (result.user->isContact()) {
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const auto hidden = result.user->hasStoriesHidden();
using List = StorySourcesList;
add(hidden ? List::Hidden : List::NotHidden);
applyDeletedFromSources(
peerId,
hidden ? List::NotHidden : List::Hidden);
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} else {
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applyDeletedFromSources(peerId, StorySourcesList::NotHidden);
applyDeletedFromSources(peerId, StorySourcesList::Hidden);
}
_sourceChanged.fire_copy(peerId);
}
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() && !peer->isSelf()) {
return nullptr;
}
const auto id = data.vid().v;
auto &stories = _stories[peer->id];
const auto i = stories.find(id);
if (i != end(stories)) {
const auto result = i->second.get();
const auto pinned = result->pinned();
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const auto mediaChanged = (result->media() != *media);
if (result->applyChanges(*media, data)) {
if (result->pinned() != pinned) {
savedStateUpdated(result);
}
session().changes().storyUpdated(
result,
UpdateFlag::Edited);
if (const auto item = lookupItem(result)) {
item->applyChanges(result);
}
}
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if (mediaChanged) {
const auto fullId = result->fullId();
_preloaded.remove(fullId);
if (_preloading && _preloading->id() == fullId) {
_preloading = nullptr;
rebuildPreloadSources(StorySourcesList::NotHidden);
rebuildPreloadSources(StorySourcesList::Hidden);
continuePreloading();
}
}
return result;
}
const auto result = stories.emplace(id, std::make_unique<Story>(
id,
peer,
StoryMedia{ *media },
data.vdate().v,
data.vexpire_date().v)).first->second.get();
result->applyChanges(*media, data);
if (result->pinned()) {
savedStateUpdated(result);
}
if (peer->isSelf()) {
const auto added = _archive.list.emplace(id).second;
if (added) {
if (_archiveTotal >= 0 && id > _archiveLastId) {
++_archiveTotal;
}
_archiveChanged.fire({});
}
}
if (expired) {
_expiring.remove(expires, result->fullId());
applyExpired(result->fullId());
} else {
registerExpiring(expires, result->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->id, 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 (!peer->isSelf()) {
applyDeleted(fullId);
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->id, 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::savedStateUpdated(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);
}
}
}
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void Stories::loadMore(StorySourcesList list) {
const auto index = static_cast<int>(list);
if (_loadMoreRequestId[index] || _sourcesLoaded[index]) {
return;
}
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const auto hidden = (list == StorySourcesList::Hidden);
const auto api = &_owner->session().api();
using Flag = MTPstories_GetAllStories::Flag;
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_loadMoreRequestId[index] = api->request(MTPstories_GetAllStories(
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MTP_flags((hidden ? Flag::f_hidden : Flag())
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| (_sourcesStates[index].isEmpty()
? Flag(0)
: (Flag::f_next | Flag::f_state))),
MTP_string(_sourcesStates[index])
)).done([=](const MTPstories_AllStories &result) {
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_loadMoreRequestId[index] = 0;
result.match([&](const MTPDstories_allStories &data) {
_owner->processUsers(data.vusers());
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_sourcesStates[index] = qs(data.vstate());
_sourcesLoaded[index] = !data.is_has_more();
for (const auto &single : data.vuser_stories().v) {
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parseAndApply(single);
}
}, [](const MTPDstories_allStoriesNotModified &) {
});
}).fail([=] {
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_loadMoreRequestId[index] = 0;
}).send();
}
void Stories::sendResolveRequests() {
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if (!_resolveSent.empty()) {
return;
}
auto leftToSend = kMaxResolveTogether;
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auto byPeer = base::flat_map<PeerId, QVector<MTPint>>();
for (auto i = begin(_resolvePending); i != end(_resolvePending);) {
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const auto peerId = i->first;
auto &ids = i->second;
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auto &sent = _resolveSent[peerId];
if (ids.size() <= leftToSend) {
sent = base::take(ids);
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i = _resolvePending.erase(i); // Invalidates `ids`.
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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];
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for (auto &[storyId, callbacks] : sent) {
prepared.push_back(MTP_int(storyId));
}
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if (!leftToSend) {
break;
}
}
const auto api = &_owner->session().api();
for (auto &entry : byPeer) {
const auto peerId = entry.first;
auto &prepared = entry.second;
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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();
}
}
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_itemsChanged.fire_copy(peerId);
if (_resolveSent.empty() && !_resolvePending.empty()) {
crl::on_main(&session(), [=] { sendResolveRequests(); });
}
};
const auto user = _owner->session().data().peer(peerId)->asUser();
if (!user) {
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finish(peerId);
continue;
}
const auto requestId = api->request(MTPstories_GetStoriesByID(
user->inputUser,
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MTP_vector<MTPint>(prepared)
)).done([=](const MTPstories_Stories &result) {
owner().processUsers(result.data().vusers());
processResolvedStories(user, result.data().vstories().v);
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finish(user->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->id, data.vid().v });
}
}, [&](const MTPDstoryItemSkipped &data) {
LOG(("API Error: Unexpected storyItemSkipped in resolve."));
}, [&](const MTPDstoryItemDeleted &data) {
applyDeleted({ peer->id, 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(id);
}
}
void Stories::applyDeleted(FullStoryId id) {
applyRemovedFromActive(id);
_deleted.emplace(id);
const auto i = _stories.find(id.peer);
if (i != end(_stories)) {
const auto j = i->second.find(id.story);
if (j != end(i->second)) {
// Duplicated in Stories::apply(peer, const MTPUserStories*).
auto story = 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 (id.peer == session().userPeerId()
&& _archive.list.remove(id.story)) {
if (_archiveTotal > 0) {
--_archiveTotal;
}
_archiveChanged.fire({});
}
if (story->pinned()) {
if (const auto k = _saved.find(id.peer); k != end(_saved)) {
const auto saved = &k->second;
if (saved->ids.list.remove(id.story)) {
if (saved->total > 0) {
--saved->total;
}
_savedChanged.fire_copy(id.peer);
}
}
}
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if (_preloading && _preloading->id() == id) {
preloadFinished(id);
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}
if (i->second.empty()) {
_stories.erase(i);
}
}
}
}
void Stories::applyExpired(FullStoryId id) {
if (const auto maybeStory = lookup(id)) {
const auto story = *maybeStory;
if (!story->peer()->isSelf() && !story->pinned()) {
applyDeleted(id);
return;
}
}
applyRemovedFromActive(id);
}
void Stories::applyRemovedFromActive(FullStoryId id) {
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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);
_sourcesChanged[index].fire({});
}
};
const auto i = _all.find(id.peer);
if (i != end(_all)) {
const auto j = i->second.ids.lower_bound(StoryIdDates{ id.story });
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if (j != end(i->second.ids) && j->id == id.story) {
i->second.ids.erase(j);
if (i->second.ids.empty()) {
_all.erase(i);
removeFromList(StorySourcesList::NotHidden);
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removeFromList(StorySourcesList::Hidden);
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}
_sourceChanged.fire_copy(id.peer);
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}
}
}
void Stories::applyDeletedFromSources(PeerId id, StorySourcesList list) {
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auto &sources = _sources[static_cast<int>(list)];
const auto i = ranges::find(
sources,
id,
&StoriesSourceInfo::id);
if (i != end(sources)) {
sources.erase(i);
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}
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_sourcesChanged[static_cast<int>(list)].fire({});
}
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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);
}
}
}
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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;
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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)
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+ (info.unread ? (int64(1) << 49) : 0)
+ ((info.id == self) ? (int64(1) << 50) : 0);
return std::make_pair(key, info.id);
};
ranges::sort(sources, ranges::greater(), proj);
_sourcesChanged[index].fire({});
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preloadSourcesChanged(list);
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}
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();
}
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;
}
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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)];
}
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rpl::producer<> Stories::sourcesChanged(StorySourcesList list) const {
return _sourcesChanged[static_cast<int>(list)].events();
}
rpl::producer<PeerId> Stories::sourceChanged() const {
return _sourceChanged.events();
}
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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) {
const auto already = lookup(id);
if (already.has_value() || already.error() != NoStory::Unknown) {
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if (done) {
done();
}
return;
}
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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;
}
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const auto i = _all.find(id.peer);
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if (i == end(_all)) {
return;
}
const auto j = i->second.ids.lower_bound(StoryIdDates{ id.story });
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if (j == end(i->second.ids) || j->id != id.story) {
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return;
}
const auto ignore = [&] {
const auto side = kIgnorePreloadAroundIfLoaded;
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const auto left = ranges::min(int(j - begin(i->second.ids)), side);
const auto right = ranges::min(int(end(i->second.ids) - j), side);
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for (auto k = j - left; k != j + right; ++k) {
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const auto maybeStory = lookup({ id.peer, k->id });
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if (!maybeStory && maybeStory.error() == NoStory::Unknown) {
return false;
}
}
return true;
}();
if (ignore) {
return;
}
const auto side = kPreloadAroundCount;
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const auto left = ranges::min(int(j - begin(i->second.ids)), side);
const auto right = ranges::min(int(end(i->second.ids) - j), side);
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const auto from = j - left;
const auto till = j + right;
for (auto k = from; k != till; ++k) {
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resolve({ id.peer, k->id }, nullptr);
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}
}
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void Stories::markAsRead(FullStoryId id, bool viewed) {
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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);
}
}
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const auto i = _all.find(id.peer);
if (i == end(_all) || i->second.readTill >= id.story) {
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return;
} else if (!_markReadPending.contains(id.peer)) {
sendMarkAsReadRequests();
}
_markReadPending.emplace(id.peer);
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const auto wasUnread = i->second.unread();
i->second.readTill = id.story;
const auto nowUnread = i->second.unread();
if (wasUnread != nowUnread) {
const auto refreshInList = [&](StorySourcesList list) {
auto &sources = _sources[static_cast<int>(list)];
const auto i = ranges::find(
sources,
id.peer,
&StoriesSourceInfo::id);
if (i != end(sources)) {
i->unread = nowUnread;
sort(list);
}
};
refreshInList(StorySourcesList::NotHidden);
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refreshInList(StorySourcesList::Hidden);
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}
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_markReadTimer.callOnce(kMarkAsReadDelay);
}
void Stories::toggleHidden(
PeerId peerId,
bool hidden,
std::shared_ptr<Ui::Show> show) {
const auto user = _owner->peer(peerId)->asUser();
Assert(user != nullptr);
if (user->hasStoriesHidden() != hidden) {
user->setFlags(hidden
? (user->flags() | UserDataFlag::StoriesHidden)
: (user->flags() & ~UserDataFlag::StoriesHidden));
session().api().request(MTPcontacts_ToggleStoriesHidden(
user->inputUser,
MTP_bool(hidden)
)).send();
}
const auto name = user->shortName();
const auto guard = gsl::finally([&] {
if (show) {
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::WithEntities));
}
});
const auto i = _all.find(peerId);
if (i == end(_all)) {
return;
}
i->second.hidden = hidden;
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const auto info = i->second.info();
const auto main = static_cast<int>(StorySourcesList::NotHidden);
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const auto other = static_cast<int>(StorySourcesList::Hidden);
const auto proj = &StoriesSourceInfo::id;
if (hidden) {
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const auto i = ranges::find(_sources[main], peerId, proj);
if (i != end(_sources[main])) {
_sources[main].erase(i);
_sourcesChanged[main].fire({});
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preloadSourcesChanged(StorySourcesList::NotHidden);
}
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const auto j = ranges::find(_sources[other], peerId, proj);
if (j == end(_sources[other])) {
_sources[other].push_back(info);
} else {
*j = info;
}
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sort(StorySourcesList::Hidden);
} else {
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const auto i = ranges::find(_sources[other], peerId, proj);
if (i != end(_sources[other])) {
_sources[other].erase(i);
_sourcesChanged[other].fire({});
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preloadSourcesChanged(StorySourcesList::Hidden);
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}
const auto j = ranges::find(_sources[main], peerId, proj);
if (j == end(_sources[main])) {
_sources[main].push_back(info);
} else {
*j = info;
}
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sort(StorySourcesList::NotHidden);
}
}
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void Stories::sendMarkAsReadRequest(
not_null<PeerData*> peer,
StoryId tillId) {
Expects(peer->isUser());
const auto peerId = peer->id;
_markReadRequests.emplace(peerId);
const auto finish = [=] {
_markReadRequests.remove(peerId);
if (!_markReadTimer.isActive()
&& _markReadPending.contains(peerId)) {
sendMarkAsReadRequests();
}
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checkQuitPreventFinished();
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};
const auto api = &_owner->session().api();
api->request(MTPstories_ReadStories(
peer->asUser()->inputUser,
MTP_int(tillId)
)).done(finish).fail(finish).send();
}
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void Stories::checkQuitPreventFinished() {
if (_markReadRequests.empty() && _incrementViewsRequests.empty()) {
if (Core::Quitting()) {
LOG(("Stories doesn't prevent quit any more."));
}
Core::App().quitPreventFinished();
}
}
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void Stories::sendMarkAsReadRequests() {
_markReadTimer.cancel();
for (auto i = begin(_markReadPending); i != end(_markReadPending);) {
const auto peerId = *i;
if (_markReadRequests.contains(peerId)) {
++i;
continue;
}
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const auto j = _all.find(peerId);
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if (j != end(_all)) {
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sendMarkAsReadRequest(j->second.user, j->second.readTill);
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}
i = _markReadPending.erase(i);
}
}
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void Stories::sendIncrementViewsRequests() {
if (_incrementViewsPending.empty()) {
return;
}
auto ids = QVector<MTPint>();
auto peer = PeerId();
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);
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const auto finish = [=, peer = peer] {
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_incrementViewsRequests.remove(peer);
if (!_incrementViewsTimer.isActive()
&& _incrementViewsPending.contains(peer)) {
sendIncrementViewsRequests();
}
checkQuitPreventFinished();
};
api->request(MTPstories_IncrementStoryViews(
_owner->peer(peer)->asUser()->inputUser,
MTP_vector<MTPint>(std::move(ids))
)).done(finish).fail(finish).send();
_incrementViewsPending.remove(peer);
}
}
void Stories::loadViewsSlice(
StoryId id,
std::optional<StoryView> offset,
Fn<void(std::vector<StoryView>)> done) {
_viewsDone = std::move(done);
if (_viewsStoryId == id && _viewsOffset == offset) {
return;
}
_viewsStoryId = id;
_viewsOffset = offset;
const auto api = &_owner->session().api();
api->request(_viewsRequestId).cancel();
_viewsRequestId = api->request(MTPstories_GetStoryViewsList(
MTP_int(id),
MTP_int(offset ? offset->date : 0),
MTP_long(offset ? peerToUser(offset->peer->id).bare : 0),
MTP_int(kViewsPerPage)
)).done([=](const MTPstories_StoryViewsList &result) {
_viewsRequestId = 0;
auto slice = std::vector<StoryView>();
const auto &data = result.data();
_owner->processUsers(data.vusers());
slice.reserve(data.vviews().v.size());
for (const auto &view : data.vviews().v) {
slice.push_back({
.peer = _owner->peer(peerFromUser(view.data().vuser_id())),
.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, data.vcount().v);
}
if (const auto done = base::take(_viewsDone)) {
done(std::move(slice));
}
}).fail([=] {
_viewsRequestId = 0;
if (const auto done = base::take(_viewsDone)) {
done({});
}
}).send();
}
const StoriesIds &Stories::archive() const {
return _archive;
}
rpl::producer<> Stories::archiveChanged() const {
return _archiveChanged.events();
}
int Stories::archiveCount() const {
return std::max(_archiveTotal, 0);
}
bool Stories::archiveCountKnown() const {
return _archiveTotal >= 0;
}
bool Stories::archiveLoaded() const {
return _archiveLoaded;
}
const StoriesIds *Stories::saved(PeerId peerId) const {
const auto i = _saved.find(peerId);
return (i != end(_saved)) ? &i->second.ids : nullptr;
}
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() {
if (_archiveRequestId || _archiveLoaded) {
return;
}
const auto api = &_owner->session().api();
_archiveRequestId = api->request(MTPstories_GetStoriesArchive(
MTP_int(_archiveLastId),
MTP_int(_archiveLastId ? kArchivePerPage : kArchiveFirstPerPage)
)).done([=](const MTPstories_Stories &result) {
_archiveRequestId = 0;
const auto &data = result.data();
const auto self = _owner->session().user();
const auto now = base::unixtime::now();
_archiveTotal = data.vcount().v;
for (const auto &story : data.vstories().v) {
const auto id = story.match([&](const auto &id) {
return id.vid().v;
});
_archive.list.emplace(id);
_archiveLastId = id;
if (!parseAndApply(self, story, now)) {
_archive.list.remove(id);
if (_archiveTotal > 0) {
--_archiveTotal;
}
}
}
const auto ids = int(_archive.list.size());
_archiveLoaded = data.vstories().v.empty();
_archiveTotal = _archiveLoaded ? ids : std::max(_archiveTotal, ids);
_archiveChanged.fire({});
}).fail([=] {
_archiveRequestId = 0;
_archiveLoaded = true;
_archiveTotal = int(_archive.list.size());
_archiveChanged.fire({});
}).send();
}
void Stories::savedLoadMore(PeerId peerId) {
Expects(peerIsUser(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->asUser()->inputUser,
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) {
auto list = QVector<MTPint>();
list.reserve(ids.size());
const auto selfId = session().userPeerId();
for (const auto &id : ids) {
if (id.peer == selfId) {
list.push_back(MTP_int(id.story));
}
}
if (!list.empty()) {
const auto api = &_owner->session().api();
api->request(MTPstories_DeleteStories(
MTP_vector<MTPint>(list)
)).done([=](const MTPVector<MTPint> &result) {
for (const auto &id : result.v) {
applyDeleted({ selfId, id.v });
}
}).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());
}
}
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bool Stories::isQuitPrevent() {
if (!_markReadPending.empty()) {
sendMarkAsReadRequests();
}
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if (!_incrementViewsPending.empty()) {
sendIncrementViewsRequests();
}
if (_markReadRequests.empty() && _incrementViewsRequests.empty()) {
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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();
}
}
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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();
}
}
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) {
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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);
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});
if (!_preloaded.contains(id)) {
_preloading = std::move(preloading);
}
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}
void Stories::preloadFinished(FullStoryId id, bool markAsPreloaded) {
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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();
});
}
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} // namespace Data