610 lines
		
	
	
	
		
			18 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			610 lines
		
	
	
	
		
			18 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "data/data_peer_values.h"
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#include "lang/lang_keys.h"
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#include "data/data_channel.h"
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#include "data/data_chat.h"
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#include "data/data_user.h"
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#include "data/data_changes.h"
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#include "data/data_forum_topic.h"
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#include "data/data_session.h"
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#include "data/data_message_reactions.h"
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#include "main/main_session.h"
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#include "main/main_app_config.h"
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#include "ui/image/image_prepare.h"
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#include "base/unixtime.h"
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namespace Data {
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namespace {
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constexpr auto kMinOnlineChangeTimeout = crl::time(1000);
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constexpr auto kMaxOnlineChangeTimeout = 86400 * crl::time(1000);
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constexpr auto kSecondsInDay = 86400;
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int OnlinePhraseChangeInSeconds(LastseenStatus status, TimeId now) {
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	const auto till = status.onlineTill();
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	if (till > now) {
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		return till - now;
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	} else if (status.isHidden()) {
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		return std::numeric_limits<int>::max();
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	}
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	const auto minutes = (now - till) / 60;
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	if (minutes < 60) {
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		return (minutes + 1) * 60 - (now - till);
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	}
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	const auto hours = (now - till) / 3600;
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	if (hours < 12) {
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		return (hours + 1) * 3600 - (now - till);
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	}
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	const auto nowFull = base::unixtime::parse(now);
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	const auto tomorrow = nowFull.date().addDays(1).startOfDay();
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	return std::max(static_cast<TimeId>(nowFull.secsTo(tomorrow)), 0);
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}
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std::optional<QString> OnlineTextSpecial(not_null<UserData*> user) {
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	if (user->isNotificationsUser()) {
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		return tr::lng_status_service_notifications(tr::now);
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	} else if (user->isSupport()) {
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		return tr::lng_status_support(tr::now);
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	} else if (user->isBot()) {
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		return tr::lng_status_bot(tr::now);
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	} else if (user->isServiceUser()) {
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		return tr::lng_status_support(tr::now);
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	}
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	return std::nullopt;
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}
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std::optional<QString> OnlineTextCommon(LastseenStatus status, TimeId now) {
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	if (status.isOnline(now)) {
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		return tr::lng_status_online(tr::now);
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	} else if (status.isLongAgo()) {
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		return tr::lng_status_offline(tr::now);
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	} else if (status.isRecently() || status.isHidden()) {
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		return tr::lng_status_recently(tr::now);
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	} else if (status.isWithinWeek()) {
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		return tr::lng_status_last_week(tr::now);
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	} else if (status.isWithinMonth()) {
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		return tr::lng_status_last_month(tr::now);
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	}
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	return std::nullopt;
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}
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[[nodiscard]] int UniqueReactionsLimit(not_null<Main::AppConfig*> config) {
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	return config->get<int>("reactions_uniq_max", 11);
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}
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} // namespace
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inline auto AdminRightsValue(not_null<ChannelData*> channel) {
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	return channel->adminRightsValue();
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}
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inline auto AdminRightsValue(
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		not_null<ChannelData*> channel,
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		ChatAdminRights mask) {
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	return FlagsValueWithMask(AdminRightsValue(channel), mask);
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}
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inline auto AdminRightValue(
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		not_null<ChannelData*> channel,
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		ChatAdminRight flag) {
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	return SingleFlagValue(AdminRightsValue(channel), flag);
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}
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inline auto AdminRightsValue(not_null<ChatData*> chat) {
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	return chat->adminRightsValue();
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}
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inline auto AdminRightsValue(
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		not_null<ChatData*> chat,
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		ChatAdminRights mask) {
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	return FlagsValueWithMask(AdminRightsValue(chat), mask);
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}
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inline auto AdminRightValue(
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		not_null<ChatData*> chat,
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		ChatAdminRight flag) {
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	return SingleFlagValue(AdminRightsValue(chat), flag);
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}
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inline auto RestrictionsValue(not_null<ChannelData*> channel) {
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	return channel->restrictionsValue();
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}
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inline auto RestrictionsValue(
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		not_null<ChannelData*> channel,
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		ChatRestrictions mask) {
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	return FlagsValueWithMask(RestrictionsValue(channel), mask);
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}
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inline auto RestrictionValue(
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		not_null<ChannelData*> channel,
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		ChatRestriction flag) {
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	return SingleFlagValue(RestrictionsValue(channel), flag);
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}
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inline auto DefaultRestrictionsValue(not_null<ChannelData*> channel) {
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	return channel->defaultRestrictionsValue();
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}
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inline auto DefaultRestrictionsValue(
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		not_null<ChannelData*> channel,
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		ChatRestrictions mask) {
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	return FlagsValueWithMask(DefaultRestrictionsValue(channel), mask);
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}
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inline auto DefaultRestrictionValue(
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		not_null<ChannelData*> channel,
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		ChatRestriction flag) {
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	return SingleFlagValue(DefaultRestrictionsValue(channel), flag);
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}
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inline auto DefaultRestrictionsValue(not_null<ChatData*> chat) {
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	return chat->defaultRestrictionsValue();
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}
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inline auto DefaultRestrictionsValue(
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		not_null<ChatData*> chat,
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		ChatRestrictions mask) {
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	return FlagsValueWithMask(DefaultRestrictionsValue(chat), mask);
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}
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inline auto DefaultRestrictionValue(
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		not_null<ChatData*> chat,
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		ChatRestriction flag) {
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	return SingleFlagValue(DefaultRestrictionsValue(chat), flag);
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}
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// Duplicated in CanSendAnyOf().
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[[nodiscard]] rpl::producer<bool> CanSendAnyOfValue(
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		not_null<Thread*> thread,
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		ChatRestrictions rights,
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		bool forbidInForums) {
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	if (const auto topic = thread->asTopic()) {
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		using Flag = ChannelDataFlag;
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		const auto mask = Flag()
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			| Flag::Left
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			| Flag::JoinToWrite
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			| Flag::HasLink
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			| Flag::Forbidden
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			| Flag::Creator;
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		const auto channel = topic->channel();
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		return rpl::combine(
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			PeerFlagsValue(channel.get(), mask),
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			RestrictionsValue(channel, rights),
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			DefaultRestrictionsValue(channel, rights),
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			AdminRightsValue(channel, ChatAdminRight::ManageTopics),
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			topic->session().changes().topicFlagsValue(
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				topic,
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				TopicUpdate::Flag::Closed),
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			[=](
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					ChannelDataFlags flags,
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					ChatRestrictions sendRestriction,
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					ChatRestrictions defaultSendRestriction,
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					auto,
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					auto) {
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				const auto notAmInFlags = Flag::Left | Flag::Forbidden;
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				const auto allowed = !(flags & notAmInFlags)
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					|| ((flags & Flag::HasLink)
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						&& !(flags & Flag::JoinToWrite));
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				return allowed
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					&& ((flags & Flag::Creator)
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						|| (!sendRestriction && !defaultSendRestriction))
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					&& (!topic->closed() || topic->canToggleClosed());
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			});
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	}
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	return CanSendAnyOfValue(thread->peer(), rights, forbidInForums);
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}
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// Duplicated in CanSendAnyOf().
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[[nodiscard]] rpl::producer<bool> CanSendAnyOfValue(
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		not_null<PeerData*> peer,
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		ChatRestrictions rights,
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		bool forbidInForums) {
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	if (const auto user = peer->asUser()) {
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		if (user->isRepliesChat()) {
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			return rpl::single(false);
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		}
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		using namespace rpl::mappers;
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		const auto other = rights & ~(ChatRestriction::SendVoiceMessages
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			| ChatRestriction::SendVideoMessages);
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		auto allowedAny = PeerFlagsValue(
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			user,
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			(UserDataFlag::Deleted | UserDataFlag::MeRequiresPremiumToWrite)
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		) | rpl::map([=](UserDataFlags flags) {
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			return (flags & UserDataFlag::Deleted)
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				? rpl::single(false)
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				: !(flags & UserDataFlag::MeRequiresPremiumToWrite)
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				? rpl::single(true)
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				: AmPremiumValue(&user->session());
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		}) | rpl::flatten_latest();
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		if (other) {
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			return allowedAny;
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		}
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		const auto mask = UserDataFlag::VoiceMessagesForbidden;
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		return rpl::combine(
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			std::move(allowedAny),
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			PeerFlagValue(user, mask),
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			_1 && !_2);
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	} else if (const auto chat = peer->asChat()) {
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		const auto mask = ChatDataFlag()
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			| ChatDataFlag::Deactivated
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			| ChatDataFlag::Forbidden
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			| ChatDataFlag::Left
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			| ChatDataFlag::Creator;
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		return rpl::combine(
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			PeerFlagsValue(chat, mask),
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			AdminRightsValue(chat),
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			DefaultRestrictionsValue(chat, rights),
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			[rights](
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				ChatDataFlags flags,
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				Data::Flags<ChatAdminRights>::Change adminRights,
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				ChatRestrictions defaultSendRestrictions) {
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			const auto amOutFlags = ChatDataFlag()
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				| ChatDataFlag::Deactivated
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				| ChatDataFlag::Forbidden
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				| ChatDataFlag::Left;
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		return !(flags & amOutFlags)
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			&& ((flags & ChatDataFlag::Creator)
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				|| (adminRights.value != ChatAdminRights(0))
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				|| (rights & ~defaultSendRestrictions));
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		});
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	} else if (const auto channel = peer->asChannel()) {
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		using Flag = ChannelDataFlag;
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		const auto mask = Flag()
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			| Flag::Left
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			| Flag::Forum
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			| Flag::JoinToWrite
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			| Flag::HasLink
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			| Flag::Forbidden
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			| Flag::Creator
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			| Flag::Broadcast;
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		return rpl::combine(
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			PeerFlagsValue(channel, mask),
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			AdminRightValue(
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				channel,
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				ChatAdminRight::PostMessages),
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			channel->unrestrictedByBoostsValue(),
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			RestrictionsValue(channel, rights),
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			DefaultRestrictionsValue(channel, rights),
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			[=](
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					ChannelDataFlags flags,
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					bool postMessagesRight,
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					bool unrestrictedByBoosts,
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					ChatRestrictions sendRestriction,
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					ChatRestrictions defaultSendRestriction) {
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				const auto notAmInFlags = Flag::Left | Flag::Forbidden;
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				const auto forumRestriction = forbidInForums
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					&& (flags & Flag::Forum);
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				const auto allowed = !(flags & notAmInFlags)
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					|| ((flags & Flag::HasLink)
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						&& !(flags & Flag::JoinToWrite));
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				const auto restricted = sendRestriction
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					| (defaultSendRestriction && !unrestrictedByBoosts);
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				return allowed
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					&& !forumRestriction
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					&& (postMessagesRight
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						|| (flags & Flag::Creator)
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						|| (!(flags & Flag::Broadcast)
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							&& (rights & ~restricted)));
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			});
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	}
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	Unexpected("Peer type in Data::CanSendAnyOfValue.");
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}
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// This is duplicated in PeerData::canPinMessages().
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rpl::producer<bool> CanPinMessagesValue(not_null<PeerData*> peer) {
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	using namespace rpl::mappers;
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	if (const auto user = peer->asUser()) {
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		return PeerFlagsValue(
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			user,
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			UserDataFlag::CanPinMessages
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		) | rpl::map(_1 != UserDataFlag(0));
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	} else if (const auto chat = peer->asChat()) {
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		const auto mask = 0
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			| ChatDataFlag::Deactivated
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			| ChatDataFlag::Forbidden
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			| ChatDataFlag::Left
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			| ChatDataFlag::Creator;
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		return rpl::combine(
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			PeerFlagsValue(chat, mask),
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			AdminRightValue(chat, ChatAdminRight::PinMessages),
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			DefaultRestrictionValue(chat, ChatRestriction::PinMessages),
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		[](
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				ChatDataFlags flags,
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				bool adminRightAllows,
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				bool defaultRestriction) {
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			const auto amOutFlags = 0
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				| ChatDataFlag::Deactivated
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				| ChatDataFlag::Forbidden
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				| ChatDataFlag::Left;
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			return !(flags & amOutFlags)
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				&& ((flags & ChatDataFlag::Creator)
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					|| adminRightAllows
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					|| !defaultRestriction);
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		});
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	} else if (const auto megagroup = peer->asMegagroup()) {
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		if (megagroup->amCreator()) {
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			return rpl::single(true);
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		}
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		return rpl::combine(
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			AdminRightValue(megagroup, ChatAdminRight::PinMessages),
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			DefaultRestrictionValue(megagroup, ChatRestriction::PinMessages),
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			PeerFlagsValue(
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				megagroup,
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				ChannelDataFlag::Username | ChannelDataFlag::Location),
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			megagroup->restrictionsValue()
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		) | rpl::map([=](
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				bool adminRightAllows,
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				bool defaultRestriction,
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				ChannelDataFlags usernameOrLocation,
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				Data::Flags<ChatRestrictions>::Change restrictions) {
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			return adminRightAllows
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				|| (!usernameOrLocation
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					&& !defaultRestriction
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					&& !(restrictions.value & ChatRestriction::PinMessages));
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		});
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	} else if (const auto channel = peer->asChannel()) {
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		if (channel->amCreator()) {
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			return rpl::single(true);
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		}
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		return AdminRightValue(channel, ChatAdminRight::EditMessages);
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	}
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	Unexpected("Peer type in CanPinMessagesValue.");
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}
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rpl::producer<bool> CanManageGroupCallValue(not_null<PeerData*> peer) {
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	const auto flag = ChatAdminRight::ManageCall;
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	if (const auto chat = peer->asChat()) {
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		return chat->amCreator()
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			? (rpl::single(true) | rpl::type_erased())
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			: AdminRightValue(chat, flag);
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	} else if (const auto channel = peer->asChannel()) {
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		return channel->amCreator()
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			? (rpl::single(true) | rpl::type_erased())
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			: AdminRightValue(channel, flag);
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	}
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	return rpl::single(false);
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}
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rpl::producer<bool> PeerPremiumValue(not_null<PeerData*> peer) {
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	const auto user = peer->asUser();
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	if (!user) {
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		return rpl::single(false);
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	}
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	return user->flagsValue(
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	) | rpl::filter([=](UserData::Flags::Change change) {
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		return (change.diff & UserDataFlag::Premium);
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	}) | rpl::map([=] {
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		return user->isPremium();
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	});
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}
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rpl::producer<bool> AmPremiumValue(not_null<Main::Session*> session) {
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	return PeerPremiumValue(session->user());
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}
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TimeId SortByOnlineValue(not_null<UserData*> user, TimeId now) {
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	if (user->isServiceUser() || user->isBot()) {
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		return -1;
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	}
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	const auto lastseen = user->lastseen();
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	if (const auto till = lastseen.onlineTill()) {
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		return till;
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	} else if (lastseen.isRecently()) {
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		return now - 3 * kSecondsInDay;
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	} else if (lastseen.isWithinWeek()) {
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		return now - 7 * kSecondsInDay;
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	} else if (lastseen.isWithinMonth()) {
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		return now - 30 * kSecondsInDay;
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	} else {
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		return 0;
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	}
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}
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 | 
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crl::time OnlineChangeTimeout(Data::LastseenStatus status, TimeId now) {
 | 
						|
	const auto result = OnlinePhraseChangeInSeconds(status, now);
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	Assert(result >= 0);
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	return std::clamp(
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		result * crl::time(1000),
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		kMinOnlineChangeTimeout,
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		kMaxOnlineChangeTimeout);
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}
 | 
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crl::time OnlineChangeTimeout(not_null<UserData*> user, TimeId now) {
 | 
						|
	if (user->isServiceUser() || user->isBot()) {
 | 
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		return kMaxOnlineChangeTimeout;
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						|
	}
 | 
						|
	return OnlineChangeTimeout(user->lastseen(), now);
 | 
						|
}
 | 
						|
 | 
						|
QString OnlineText(Data::LastseenStatus status, TimeId now) {
 | 
						|
	if (const auto common = OnlineTextCommon(status, now)) {
 | 
						|
		return *common;
 | 
						|
	}
 | 
						|
	const auto till = status.onlineTill();
 | 
						|
	Assert(till > 0);
 | 
						|
	const auto minutes = (now - till) / 60;
 | 
						|
	if (!minutes) {
 | 
						|
		return tr::lng_status_lastseen_now(tr::now);
 | 
						|
	} else if (minutes < 60) {
 | 
						|
		return tr::lng_status_lastseen_minutes(tr::now, lt_count, minutes);
 | 
						|
	}
 | 
						|
	const auto hours = (now - till) / 3600;
 | 
						|
	if (hours < 12) {
 | 
						|
		return tr::lng_status_lastseen_hours(tr::now, lt_count, hours);
 | 
						|
	}
 | 
						|
	const auto onlineFull = base::unixtime::parse(till);
 | 
						|
	const auto nowFull = base::unixtime::parse(now);
 | 
						|
	const auto locale = QLocale();
 | 
						|
	if (onlineFull.date() == nowFull.date()) {
 | 
						|
		const auto onlineTime = locale.toString(onlineFull.time(), QLocale::ShortFormat);
 | 
						|
		return tr::lng_status_lastseen_today(tr::now, lt_time, onlineTime);
 | 
						|
	} else if (onlineFull.date().addDays(1) == nowFull.date()) {
 | 
						|
		const auto onlineTime = locale.toString(onlineFull.time(), QLocale::ShortFormat);
 | 
						|
		return tr::lng_status_lastseen_yesterday(tr::now, lt_time, onlineTime);
 | 
						|
	}
 | 
						|
	const auto date = locale.toString(onlineFull.date(), QLocale::ShortFormat);
 | 
						|
	return tr::lng_status_lastseen_date(tr::now, lt_date, date);
 | 
						|
}
 | 
						|
 | 
						|
QString OnlineText(not_null<UserData*> user, TimeId now) {
 | 
						|
	if (const auto special = OnlineTextSpecial(user)) {
 | 
						|
		return *special;
 | 
						|
	}
 | 
						|
	return OnlineText(user->lastseen(), now);
 | 
						|
}
 | 
						|
 | 
						|
QString OnlineTextFull(not_null<UserData*> user, TimeId now) {
 | 
						|
	if (const auto special = OnlineTextSpecial(user)) {
 | 
						|
		return *special;
 | 
						|
	} else if (const auto common = OnlineTextCommon(user->lastseen(), now)) {
 | 
						|
		return *common;
 | 
						|
	}
 | 
						|
	const auto till = user->lastseen().onlineTill();
 | 
						|
	const auto onlineFull = base::unixtime::parse(till);
 | 
						|
	const auto nowFull = base::unixtime::parse(now);
 | 
						|
	const auto locale = QLocale();
 | 
						|
	if (onlineFull.date() == nowFull.date()) {
 | 
						|
		const auto onlineTime = locale.toString(onlineFull.time(), QLocale::ShortFormat);
 | 
						|
		return tr::lng_status_lastseen_today(tr::now, lt_time, onlineTime);
 | 
						|
	} else if (onlineFull.date().addDays(1) == nowFull.date()) {
 | 
						|
		const auto onlineTime = locale.toString(onlineFull.time(), QLocale::ShortFormat);
 | 
						|
		return tr::lng_status_lastseen_yesterday(tr::now, lt_time, onlineTime);
 | 
						|
	}
 | 
						|
	const auto date = locale.toString(onlineFull.date(), QLocale::ShortFormat);
 | 
						|
	const auto time = locale.toString(onlineFull.time(), QLocale::ShortFormat);
 | 
						|
	return tr::lng_status_lastseen_date_time(tr::now, lt_date, date, lt_time, time);
 | 
						|
}
 | 
						|
 | 
						|
bool OnlineTextActive(not_null<UserData*> user, TimeId now) {
 | 
						|
	return !user->isServiceUser()
 | 
						|
		&& !user->isBot()
 | 
						|
		&& user->lastseen().isOnline(now);
 | 
						|
}
 | 
						|
 | 
						|
bool IsUserOnline(not_null<UserData*> user, TimeId now) {
 | 
						|
	if (!now) {
 | 
						|
		now = base::unixtime::now();
 | 
						|
	}
 | 
						|
	return OnlineTextActive(user, now);
 | 
						|
}
 | 
						|
 | 
						|
bool ChannelHasActiveCall(not_null<ChannelData*> channel) {
 | 
						|
	return (channel->flags() & ChannelDataFlag::CallNotEmpty);
 | 
						|
}
 | 
						|
 | 
						|
rpl::producer<QImage> PeerUserpicImageValue(
 | 
						|
		not_null<PeerData*> peer,
 | 
						|
		int size,
 | 
						|
		std::optional<int> radius) {
 | 
						|
	return [=](auto consumer) {
 | 
						|
		auto result = rpl::lifetime();
 | 
						|
		struct State {
 | 
						|
			Ui::PeerUserpicView view;
 | 
						|
			rpl::lifetime waiting;
 | 
						|
			InMemoryKey key = {};
 | 
						|
			bool empty = true;
 | 
						|
			Fn<void()> push;
 | 
						|
		};
 | 
						|
		const auto state = result.make_state<State>();
 | 
						|
		state->push = [=] {
 | 
						|
			const auto key = peer->userpicUniqueKey(state->view);
 | 
						|
			const auto loading = Ui::PeerUserpicLoading(state->view);
 | 
						|
 | 
						|
			if (loading && !state->waiting) {
 | 
						|
				peer->session().downloaderTaskFinished(
 | 
						|
				) | rpl::start_with_next(state->push, state->waiting);
 | 
						|
			} else if (!loading && state->waiting) {
 | 
						|
				state->waiting.destroy();
 | 
						|
			}
 | 
						|
 | 
						|
			if (!state->empty && (loading || key == state->key)) {
 | 
						|
				return;
 | 
						|
			}
 | 
						|
			state->key = key;
 | 
						|
			state->empty = false;
 | 
						|
			consumer.put_next(peer->generateUserpicImage(
 | 
						|
				state->view,
 | 
						|
				size,
 | 
						|
				radius));
 | 
						|
		};
 | 
						|
		peer->session().changes().peerFlagsValue(
 | 
						|
			peer,
 | 
						|
			PeerUpdate::Flag::Photo
 | 
						|
		) | rpl::start_with_next(state->push, result);
 | 
						|
		return result;
 | 
						|
	};
 | 
						|
}
 | 
						|
 | 
						|
const AllowedReactions &PeerAllowedReactions(not_null<PeerData*> peer) {
 | 
						|
	if (const auto chat = peer->asChat()) {
 | 
						|
		return chat->allowedReactions();
 | 
						|
	} else if (const auto channel = peer->asChannel()) {
 | 
						|
		return channel->allowedReactions();
 | 
						|
	} else {
 | 
						|
		static const auto result = AllowedReactions{
 | 
						|
			.type = AllowedReactionsType::All,
 | 
						|
		};
 | 
						|
		return result;
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
 rpl::producer<AllowedReactions> PeerAllowedReactionsValue(
 | 
						|
		not_null<PeerData*> peer) {
 | 
						|
	return peer->session().changes().peerFlagsValue(
 | 
						|
		peer,
 | 
						|
		Data::PeerUpdate::Flag::Reactions
 | 
						|
	) | rpl::map([=]{
 | 
						|
		return PeerAllowedReactions(peer);
 | 
						|
	});
 | 
						|
}
 | 
						|
 | 
						|
int UniqueReactionsLimit(not_null<PeerData*> peer) {
 | 
						|
	if (const auto channel = peer->asChannel()) {
 | 
						|
		if (const auto limit = channel->allowedReactions().maxCount) {
 | 
						|
			return limit;
 | 
						|
		}
 | 
						|
	} else if (const auto chat = peer->asChat()) {
 | 
						|
		if (const auto limit = chat->allowedReactions().maxCount) {
 | 
						|
			return limit;
 | 
						|
		}
 | 
						|
	}
 | 
						|
	return UniqueReactionsLimit(&peer->session().appConfig());
 | 
						|
}
 | 
						|
 | 
						|
rpl::producer<int> UniqueReactionsLimitValue(
 | 
						|
		not_null<PeerData*> peer) {
 | 
						|
	auto configValue = peer->session().appConfig().value(
 | 
						|
	) | rpl::map([config = &peer->session().appConfig()] {
 | 
						|
		return UniqueReactionsLimit(config);
 | 
						|
	}) | rpl::distinct_until_changed();
 | 
						|
	if (const auto channel = peer->asChannel()) {
 | 
						|
		return rpl::combine(
 | 
						|
			PeerAllowedReactionsValue(peer),
 | 
						|
			std::move(configValue)
 | 
						|
		) | rpl::map([=](const auto &allowedReactions, int limit) {
 | 
						|
			return allowedReactions.maxCount
 | 
						|
				? allowedReactions.maxCount
 | 
						|
				: limit;
 | 
						|
		});
 | 
						|
	} else if (const auto chat = peer->asChat()) {
 | 
						|
		return rpl::combine(
 | 
						|
			PeerAllowedReactionsValue(peer),
 | 
						|
			std::move(configValue)
 | 
						|
		) | rpl::map([=](const auto &allowedReactions, int limit) {
 | 
						|
			return allowedReactions.maxCount
 | 
						|
				? allowedReactions.maxCount
 | 
						|
				: limit;
 | 
						|
		});
 | 
						|
	}
 | 
						|
	return configValue;
 | 
						|
}
 | 
						|
 | 
						|
} // namespace Data
 |