Check first craft gift address.

Telegram/Resources/langs/lang.strings

@@ -4201,6 +4201,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_gift_craft_another_button" = "Craft Another Gift";
 "lng_gift_craft_unavailable" = "Crafting unavailable";
 "lng_gift_craft_when" = "This gift will become available for crafting on {date} at {time}.";
+"lng_gift_craft_address_error" = "This gift has been exported to the blockchain and can't be used as the primary gift for crafting.";
 
 "lng_auction_about_title" = "Auction";
 "lng_auction_about_subtitle" = "Join the battle for exclusive gifts.";

Telegram/SourceFiles/boxes/star_gift_craft_box.cpp

@@ -660,7 +660,8 @@ void ShowSelectGiftBox(
 		uint64 giftId,
 		Fn<void(GiftForCraft)> chosen,
 		std::vector<GiftForCraft> selected,
-		Fn<void()> boxClosed) {
+		Fn<void()> boxClosed,
+		bool firstSlot) {
 	struct Entry {
 		Data::SavedStarGift gift;
 		GiftButton *button = nullptr;
@@ -690,10 +691,13 @@ void ShowSelectGiftBox(
 
 		const auto got = crl::guard(box, [=](
 				std::shared_ptr<Data::UniqueGift> gift) {
-			if (!ShowCraftLaterError(box->uiShow(), gift)) {
-				chosen(GiftForCraft{ .unique = gift });
-				box->closeBox();
+			if (ShowCraftLaterError(box->uiShow(), gift)
+				|| (firstSlot
+					&& ShowCraftAddressError(box->uiShow(), gift))) {
+				return;
 			}
+			chosen(GiftForCraft{ .unique = gift });
+			box->closeBox();
 		});
 
 		AddCraftGiftsList(
@@ -1190,7 +1194,7 @@ void Craft(
 		ShowSelectGiftBox(controller, giftId, [=](GiftForCraft chosen) {
 			ShowGiftCraftBox(controller, { chosen }, false);
 			closeCurrent();
-		}, {}, [=] { *requested = false; });
+		}, {}, [=] { *requested = false; }, true);
 	};
 	StartCraftAnimation(
 		box,
@@ -1415,12 +1419,14 @@ void MakeCraftContent(
 			}
 			state->chosen = std::move(copy);
 		};
+		const auto first = (state->requestingIndex == 0);
 		ShowSelectGiftBox(
 			controller,
 			giftId,
 			crl::guard(raw, callback),
 			state->chosen.current(),
-			crl::guard(raw, [=] { state->requestingIndex = -1; }));
+			crl::guard(raw, [=] { state->requestingIndex = -1; }),
+			first);
 	}, raw->lifetime());
 
 	auto fullName = state->chosen.value(
@@ -1497,10 +1503,14 @@ void MakeCraftContent(
 		if (state->crafting) {
 			return;
 		}
+		const auto &gifts = state->chosen.current();
+		if (!gifts.empty()
+			&& ShowCraftAddressError(box->uiShow(), gifts.front().unique)) {
+			return;
+		}
 		state->crafting = true;
 
 		const auto &cs = state->craftState;
-		const auto &gifts = state->chosen.current();
 		cs->giftName = state->name.current();
 		cs->successPermille = state->successPercentPermille.current();
 
@@ -1731,4 +1741,17 @@ void ShowCraftLaterError(
 	}));
 }
 
+bool ShowCraftAddressError(
+		std::shared_ptr<Show> show,
+		std::shared_ptr<Data::UniqueGift> gift) {
+	if (gift->giftAddress.isEmpty()) {
+		return false;
+	}
+	show->show(MakeInformBox({
+		.text = tr::lng_gift_craft_address_error(tr::marked),
+		.title = tr::lng_gift_craft_unavailable(),
+	}));
+	return true;
+}
+
 } // namespace Ui

Telegram/SourceFiles/boxes/star_gift_craft_box.h

@@ -43,4 +43,8 @@ void ShowCraftLaterError(
 	std::shared_ptr<Show> show,
 	TimeId when);
 
+[[nodiscard]] bool ShowCraftAddressError(
+	std::shared_ptr<Show> show,
+	std::shared_ptr<Data::UniqueGift> gift);
+
 } // namespace Ui

Telegram/SourceFiles/settings/settings_credits_graphics.cpp

@@ -1135,6 +1135,9 @@ void FillUniqueGiftMenu(
 			if (Ui::ShowCraftLaterError(show, unique)) {
 				return;
 			}
+			if (Ui::ShowCraftAddressError(show, unique)) {
+				return;
+			}
 			const auto savedId = EntryToSavedStarGiftId(&show->session(), e);
 			if (const auto window = show->resolveWindow()) {
 				Ui::ShowGiftCraftInfoBox(window, unique, savedId);
@@ -1604,6 +1607,9 @@ void GenericCreditsEntryBody(
 			if (Ui::ShowCraftLaterError(show, unique)) {
 				return;
 			}
+			if (Ui::ShowCraftAddressError(show, unique)) {
+				return;
+			}
 			const auto savedId = EntryToSavedStarGiftId(&show->session(), e);
 			if (const auto window = show->resolveWindow()) {
 				Ui::ShowGiftCraftInfoBox(window, unique, savedId);