Improve phrases for giveaways in groups.

Telegram/Resources/langs/lang.strings

@@ -2226,6 +2226,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_boost_reassign_done#other" = "{count} boosts are reassigned from {channels}.";
 "lng_boost_reassign_channels#one" = "{count} channel";
 "lng_boost_reassign_channels#other" = "{count} channels";
+"lng_boost_reassign_groups#one" = "{count} group";
+"lng_boost_reassign_groups#other" = "{count} groups";
+"lng_boost_reassign_mixed#one" = "{count} group or channel";
+"lng_boost_reassign_mixed#other" = "{count} groups and channels";
 
 "lng_boost_channel_title_color" = "Enable colors";
 "lng_boost_channel_needs_level_color#one" = "Your channel needs to reach **Level {count}** to change channel color.";
@@ -2321,8 +2325,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_giveaway_duration_price" = "{price} x {amount}";
 "lng_giveaway_date_select" = "Select Date and Time";
 "lng_giveaway_date_confirm" = "Confirm";
-"lng_giveaway_channels_select#one" = "Select up to {count} channel";
-"lng_giveaway_channels_select#other" = "Select up to {count} channels";
 "lng_giveaway_recipients_save" = "Save Recipients";
 "lng_giveaway_recipients_deselect" = "Deselect All";
 "lng_giveaway_maximum_countries_error#one" = "You can select maximum {count} country.";

Telegram/SourceFiles/boxes/peers/replace_boost_box.cpp

@@ -340,14 +340,15 @@ object_ptr<Ui::BoxContent> ReassignBoostFloodBox(int seconds, bool group) {
 object_ptr<Ui::BoxContent> ReassignBoostSingleBox(
 		not_null<ChannelData*> to,
 		TakenBoostSlot from,
-		Fn<void(std::vector<int> slots, int sources)> reassign,
+		Fn<void(std::vector<int> slots, int groups, int channels)> reassign,
 		Fn<void()> cancel) {
 	const auto reassigned = std::make_shared<bool>();
 	const auto slot = from.id;
 	const auto peer = to->owner().peer(from.peerId);
+	const auto group = peer->isMegagroup();
 	const auto confirmed = [=](Fn<void()> close) {
 		*reassigned = true;
-		reassign({ slot }, 1);
+		reassign({ slot }, group ? 1 : 0, group ? 0 : 1);
 		close();
 	};
 
@@ -442,7 +443,10 @@ Ui::BoostFeatures LookupBoostFeatures(not_null<ChannelData*> channel) {
 		}
 		++linkStylesByLevel[level];
 	}
-
+	const auto &themes = channel->owner().cloudThemes().chatThemes();
+	if (themes.empty()) {
+		channel->owner().cloudThemes().refreshChatThemes();
+	}
 	return Ui::BoostFeatures{
 		.nameColorsByLevel = std::move(nameColorsByLevel),
 		.linkStylesByLevel = std::move(linkStylesByLevel),
@@ -455,8 +459,7 @@ Ui::BoostFeatures LookupBoostFeatures(not_null<ChannelData*> channel) {
 		.wallpaperLevel = get(group
 			? u"group_wallpaper_level_min"_q
 			: u"channel_wallpaper_level_min"_q, 9),
-		.wallpapersCount = int(
-			channel->owner().cloudThemes().chatThemes().size()),
+		.wallpapersCount = themes.empty() ? 8 : int(themes.size()),
 		.customWallpaperLevel = get(group
 			? u"channel_custom_wallpaper_level_min"_q
 			: u"group_custom_wallpaper_level_min"_q, 10),
@@ -468,23 +471,37 @@ int BoostsForGift(not_null<Main::Session*> session) {
 	return session->account().appConfig().get<int>(key, 0);
 }
 
-[[nodiscard]] int SourcesCount(
+struct Sources {
+	int groups = 0;
+	int channels = 0;
+};
+[[nodiscard]] Sources SourcesCount(
+		not_null<ChannelData*> to,
 		const std::vector<TakenBoostSlot> &from,
 		const std::vector<int> &slots) {
-	auto checked = base::flat_set<PeerId>();
-	checked.reserve(slots.size());
+	auto groups = base::flat_set<PeerId>();
+	groups.reserve(slots.size());
+	auto channels = base::flat_set<PeerId>();
+	channels.reserve(slots.size());
+	const auto owner = &to->owner();
 	for (const auto slot : slots) {
 		const auto i = ranges::find(from, slot, &TakenBoostSlot::id);
 		Assert(i != end(from));
-		checked.emplace(i->peerId);
+		const auto id = i->peerId;
+		if (!groups.contains(id) && !channels.contains(id)) {
+			(owner->peer(id)->isMegagroup() ? groups : channels).insert(id);
+		}
 	}
-	return checked.size();
+	return {
+		.groups = int(groups.size()),
+		.channels = int(channels.size()),
+	};
 }
 
 object_ptr<Ui::BoxContent> ReassignBoostsBox(
 		not_null<ChannelData*> to,
 		std::vector<TakenBoostSlot> from,
-		Fn<void(std::vector<int> slots, int sources)> reassign,
+		Fn<void(std::vector<int> slots, int groups, int channels)> reassign,
 		Fn<void()> cancel) {
 	Expects(!from.empty());
 
@@ -505,10 +522,10 @@ object_ptr<Ui::BoxContent> ReassignBoostsBox(
 		) | rpl::start_with_next([=](std::vector<int> slots) {
 			box->clearButtons();
 			if (!slots.empty()) {
-				const auto sources = SourcesCount(from, slots);
+				const auto sources = SourcesCount(to, from, slots);
 				box->addButton(tr::lng_boost_reassign_button(), [=] {
 					*reassigned = true;
-					reassign(slots, sources);
+					reassign(slots, sources.groups, sources.channels);
 				});
 			}
 			box->addButton(tr::lng_cancel(), [=] {

Telegram/SourceFiles/boxes/peers/replace_boost_box.h

@@ -50,7 +50,7 @@ struct ForChannelBoostSlots {
 object_ptr<Ui::BoxContent> ReassignBoostsBox(
 	not_null<ChannelData*> to,
 	std::vector<TakenBoostSlot> from,
-	Fn<void(std::vector<int> slots, int sources)> reassign,
+	Fn<void(std::vector<int> slots, int groups, int channels)> reassign,
 	Fn<void()> cancel);
 
 [[nodiscard]] object_ptr<Ui::RpWidget> CreateBoostReplaceUserpics(

Telegram/SourceFiles/window/window_session_controller.cpp

@@ -684,7 +684,10 @@ void SessionNavigation::applyBoost(
 			done({});
 		} else {
 			const auto weak = std::make_shared<QPointer<Ui::BoxContent>>();
-			const auto reassign = [=](std::vector<int> slots, int sources) {
+			const auto reassign = [=](
+					std::vector<int> slots,
+					int groups,
+					int channels) {
 				const auto count = int(slots.size());
 				const auto callback = [=](Ui::BoostCounters counters) {
 					if (const auto strong = weak->data()) {
@@ -696,10 +699,14 @@ void SessionNavigation::applyBoost(
 						lt_count,
 						count,
 						lt_channels,
-						tr::lng_boost_reassign_channels(
-							tr::now,
-							lt_count,
-							sources)));
+						(!groups
+							? tr::lng_boost_reassign_channels
+							: !channels
+							? tr::lng_boost_reassign_groups
+							: tr::lng_boost_reassign_mixed)(
+									tr::now,
+									lt_count,
+									groups + channels)));
 				};
 				applyBoostsChecked(
 					channel,