Support phrases for unclaimed giveaway prizes.

Telegram/Resources/langs/lang.strings

@@ -2111,6 +2111,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_prize_gift_about" = "You've received a gift from {channel}.";
 "lng_prize_gift_duration" = "Your gift is a **Telegram Premium** subscription {duration}.";
 "lng_prize_open" = "Open Gift Link";
+"lng_prize_unclaimed_title" = "Unclaimed Prize";
+"lng_prize_unclaimed_about" = "You have an unclaimed prize from a giveaway by {channel}.";
+"lng_prize_unclaimed_duration" = "This prize is a **Telegram Premium** subscription {duration}.";
 
 "lng_prizes_title#one" = "Giveaway Prize";
 "lng_prizes_title#other" = "Giveaway Prizes";
@@ -2161,10 +2164,12 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_gift_link_about" = "This link allows you to activate\na **Telegram Premium** subscription.";
 "lng_gift_link_label_from" = "From";
 "lng_gift_link_label_to" = "To";
+"lng_gift_link_label_to_unclaimed" = "No recipient";
 "lng_gift_link_label_gift" = "Gift";
 "lng_gift_link_gift_premium" = "Telegram Premium {duration}";
 "lng_gift_link_label_reason" = "Reason";
 "lng_gift_link_reason_giveaway" = "Giveaway";
+"lng_gift_link_reason_unclaimed" = "Incomplete Giveaway";
 "lng_gift_link_reason_chosen" = "You were selected by the channel";
 "lng_gift_link_label_date" = "Date";
 "lng_gift_link_also_send" = "You can also {link} to a friend as a gift.";

Telegram/SourceFiles/boxes/gift_premium_box.cpp

@@ -477,11 +477,18 @@ void GiftCodeBox(
 		tr::lng_gift_link_label_from(),
 		controller,
 		current.from);
-	AddTableRow(
-		table,
-		tr::lng_gift_link_label_to(),
-		controller,
-		current.to);
+	if (current.to) {
+		AddTableRow(
+			table,
+			tr::lng_gift_link_label_to(),
+			controller,
+			current.to);
+	} else {
+		AddTableRow(
+			table,
+			tr::lng_gift_link_label_to(),
+			tr::lng_gift_link_label_to_unclaimed(Ui::Text::WithEntities));
+	}
 	AddTableRow(
 		table,
 		tr::lng_gift_link_label_gift(),
@@ -493,11 +500,16 @@ void GiftCodeBox(
 		table,
 		tr::lng_gift_link_label_reason(),
 		(current.giveawayId
-			? (tr::lng_gift_link_reason_giveaway() | Ui::Text::ToLink())
+			? ((current.to
+				? tr::lng_gift_link_reason_giveaway
+				: tr::lng_gift_link_reason_unclaimed)(
+					) | Ui::Text::ToLink())
 			: current.giveaway
-			? (tr::lng_gift_link_reason_giveaway(
-				Ui::Text::WithEntities
-			) | rpl::type_erased())
+			? ((current.to
+				? tr::lng_gift_link_reason_giveaway
+				: tr::lng_gift_link_reason_unclaimed)(
+					Ui::Text::WithEntities
+				) | rpl::type_erased())
 			: tr::lng_gift_link_reason_chosen(Ui::Text::WithEntities)));
 	reason->setClickHandlerFilter([=](const auto &...) {
 		controller->showPeerHistory(

Telegram/SourceFiles/data/data_media_types.h

@@ -104,6 +104,7 @@ struct GiftCode {
 	ChannelData *channel = nullptr;
 	int months = 0;
 	bool viaGiveaway = false;
+	bool unclaimed = false;
 };
 
 class Media {

Telegram/SourceFiles/export/data/export_data_types.cpp

@@ -1330,6 +1330,7 @@ ServiceAction ParseServiceAction(
 			? peerFromMTP(*data.vboost_peer())
 			: PeerId();
 		content.viaGiveaway = data.is_via_giveaway();
+		content.unclaimed = data.is_unclaimed();
 		content.months = data.vmonths().v;
 		content.code = data.vslug().v;
 		result.content = content;

Telegram/SourceFiles/export/data/export_data_types.h

@@ -544,6 +544,7 @@ struct ActionGiftCode {
 	PeerId boostPeerId = 0;
 	int months = 0;
 	bool viaGiveaway = false;
+	bool unclaimed = false;
 };
 
 struct ActionRequestedPeer {

Telegram/SourceFiles/export/output/export_output_html.cpp

@@ -1280,7 +1280,12 @@ auto HtmlWriter::Wrap::pushMessage(
 			+ wrapReplyToLink("the same background")
 			+ " for this chat";
 	}, [&](const ActionGiftCode &data) {
-		return data.viaGiveaway
+		return data.unclaimed
+			? ("This is an unclaimed Telegram Premium for "
+				+ NumberToString(data.months)
+				+ (data.months > 1 ? " months" : "month")
+				+ " prize in a giveaway organized by a channel.")
+			: data.viaGiveaway
 			? ("You won a Telegram Premium for "
 				+ NumberToString(data.months)
 				+ (data.months > 1 ? " months" : "month")

Telegram/SourceFiles/export/output/export_output_json.cpp

@@ -600,6 +600,7 @@ QByteArray SerializeMessage(
 			push("boost_peer_id", data.boostPeerId);
 		}
 		push("months", data.months);
+		push("unclaimed", data.unclaimed);
 		push("via_giveaway", data.viaGiveaway);
 	}, [&](const ActionGiveawayLaunch &data) {
 		pushAction("giveaway_launch");

Telegram/SourceFiles/history/history_item.cpp

@@ -4477,7 +4477,9 @@ void HistoryItem::setServiceMessageByAction(const MTPmessageAction &action) {
 		const auto months = action.vmonths().v;
 
 		result.text = {
-			(action.is_via_giveaway()
+			(action.is_unclaimed()
+				? tr::lng_prize_unclaimed_about
+				: action.is_via_giveaway()
 				? tr::lng_prize_about
 				: tr::lng_prize_gift_about)(
 					tr::now,
@@ -4668,6 +4670,7 @@ void HistoryItem::applyAction(const MTPMessageAction &action) {
 					: nullptr),
 				.months = data.vmonths().v,
 				.viaGiveaway = data.is_via_giveaway(),
+				.unclaimed = data.is_unclaimed(),
 			});
 	}, [](const auto &) {
 	});

Telegram/SourceFiles/history/view/media/history_view_premium_gift.cpp

@@ -45,6 +45,8 @@ QSize PremiumGift::size() {
 QString PremiumGift::title() {
 	return _data.slug.isEmpty()
 		? tr::lng_premium_summary_title(tr::now)
+		: _data.unclaimed
+		? tr::lng_prize_unclaimed_title(tr::now)
 		: tr::lng_prize_title(tr::now);
 }
 
@@ -53,7 +55,9 @@ TextWithEntities PremiumGift::subtitle() {
 		return { GiftDuration(_data.months) };
 	}
 	const auto name = _data.channel ? _data.channel->name() : "channel";
-	auto result = (_data.viaGiveaway
+	auto result = (_data.unclaimed
+		? tr::lng_prize_unclaimed_about
+		: _data.viaGiveaway
 		? tr::lng_prize_about
 		: tr::lng_prize_gift_about)(
 			tr::now,
@@ -61,7 +65,9 @@ TextWithEntities PremiumGift::subtitle() {
 			Ui::Text::Bold(name),
 			Ui::Text::RichLangValue);
 	result.append("\n\n");
-	result.append((_data.viaGiveaway
+	result.append((_data.unclaimed
+		? tr::lng_prize_unclaimed_duration
+		: _data.viaGiveaway
 		? tr::lng_prize_duration
 		: tr::lng_prize_gift_duration)(
 			tr::now,