Method parseAndApply

Telegram/SourceFiles/data/data_stories.cpp:445–539

}

void Stories::parseAndApply(
		const MTPPeerStories &stories,
		ParseSource source) {
	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 (story.type() == mtpc_storyItem) {
				const auto &media = story.c_storyItem().vmedia();
				if (media.type() == mtpc_messageMediaVideoStream) {
					result.hasVideoStream = true;
				}
			}
		}
	}
	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;