Update API scheme to layer 220.

Allow offering to buy gifts.

Telegram/Resources/langs/lang.strings

@@ -2348,6 +2348,20 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_action_gift_premium_about" = "Subscription for exclusive Telegram features.";
 "lng_action_gift_refunded" = "This gift was downgraded because a request to refund the payment related to this gift was made, and the money was returned.";
 "lng_action_gift_got_ton" = "Use TON to suggest posts to channels.";
+"lng_action_gift_offer" = "{user} offered you {cost} for {name}.";
+"lng_action_gift_offer_you" = "You offered {cost} for {name}.";
+"lng_action_gift_offer_state_expires" = "This offer expires in {time}.";
+"lng_action_gift_offer_state_accepted" = "This offer was accepted.";
+"lng_action_gift_offer_state_rejected" = "This offer was rejected.";
+"lng_action_gift_offer_state_expired" = "This offer has expired.";
+"lng_action_gift_offer_sold" = "{user} sold {name} for {cost}.";
+"lng_action_gift_offer_sold_you" = "You sold {name} for {cost}.";
+"lng_action_gift_offer_decline" = "Reject";
+"lng_action_gift_offer_accept" = "Accept";
+"lng_action_gift_offer_expired" = "The offer from {user} to buy your {name} for {cost} has expired.";
+"lng_action_gift_offer_expired_you" = "Your offer to buy {name} for {cost} has expired.";
+"lng_action_gift_offer_declined" = "{user} rejected your offer to buy {name} for {cost}.";
+"lng_action_gift_offer_declined_you" = "You rejected {user}'s offer to buy your {name} for {cost}.";
 "lng_action_suggested_photo_me" = "You suggested this photo for {user}'s Telegram profile.";
 "lng_action_suggested_photo" = "{user} suggests this photo for your Telegram profile.";
 "lng_action_suggested_photo_button" = "View Photo";
@@ -3936,6 +3950,13 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_gift_transfer_unlist" = "Unlist";
 "lng_gift_transfer_locked_title" = "Action Locked";
 "lng_gift_transfer_locked_text" = "Transfer this gift to your Telegram account on Fragment to unlock this action.";
+"lng_gift_offer_button" = "Offer to Buy";
+"lng_gift_offer_title" = "Offer to Buy";
+"lng_gift_offer_stars_about" = "Choose how many Stars you'd like to offer for {name}.";
+"lng_gift_offer_ton_about" = "Choose how many TON you'd like to offer for {name}.";
+"lng_gift_offer_duration" = "Offer Duration";
+"lng_gift_offer_duration_about" = "Choose how long {user} can accept your offer. When the time expires, the amount will be refunded.";
+"lng_gift_offer_cost_button" = "Offer {cost}";
 "lng_gift_sell_unlist_title" = "Unlist {name}";
 "lng_gift_sell_unlist_sure" = "Are you sure you want to unlist your gift?";
 "lng_gift_sell_title" = "Price in Stars";

Telegram/SourceFiles/api/api_premium.cpp

@@ -930,6 +930,7 @@ std::optional<Data::StarGift> FromTL(
 				.themeUser = themeUser,
 				.nanoTonForResale = FindTonForResale(data.vresell_amount()),
 				.starsForResale = FindStarsForResale(data.vresell_amount()),
+				.starsMinOffer = data.voffer_min_stars().value_or(-1),
 				.number = data.vnum().v,
 				.onlyAcceptTon = data.is_resale_ton_only(),
 				.canBeTheme = data.is_theme_available(),

Telegram/SourceFiles/boxes/star_gift_box.cpp

@@ -3560,6 +3560,63 @@ void ShowUniqueGiftSellBox(
 	});
 }
 
+void SendOfferBuyGift(
+		std::shared_ptr<ChatHelpers::Show> show,
+		std::shared_ptr<Data::UniqueGift> unique,
+		SuggestPostOptions options,
+		Fn<void()> done) {
+	const auto randomId = base::RandomValue<uint64>();
+	const auto owner = show->session().data().peer(unique->ownerId);
+
+	using Flag = MTPpayments_SendStarGiftOffer::Flag;
+	show->session().api().request(MTPpayments_SendStarGiftOffer(
+		MTP_flags(Flag() | Flag()),//Flag::f_allow_paid_stars)
+		owner->input,
+		MTP_string(unique->slug),
+		StarsAmountToTL(options.price()),
+		MTP_int(options.offerDuration),
+		MTP_long(randomId),
+		MTP_long(0) // allow_paid_stars
+	)).done([=](const MTPUpdates &result) {
+		show->session().api().applyUpdates(result);
+		done();
+	}).fail([=](const MTP::Error &error) {
+		if (error.type() == u""_q) {
+
+		} else {
+			show->showToast(error.type());
+		}
+	}).send();
+}
+
+void ShowOfferBuyBox(
+		std::shared_ptr<ChatHelpers::Show> show,
+		std::shared_ptr<Data::UniqueGift> unique) {
+	Expects(unique->starsMinOffer >= 0);
+
+	const auto weak = std::make_shared<base::weak_qptr<Ui::BoxContent>>();
+	const auto done = [=](SuggestPostOptions result) {
+		SendOfferBuyGift(show, unique, result, [=] {
+			if (const auto strong = weak->get()) {
+				strong->closeBox();
+			}
+		});
+	};
+	using namespace HistoryView;
+	const auto options = SuggestPostOptions{
+		.exists = 1,
+		.priceWhole = uint32(unique->starsMinOffer),
+	};
+	auto priceBox = Box(ChooseSuggestPriceBox, SuggestPriceBoxArgs{
+		.peer = show->session().data().peer(unique->ownerId),
+		.done = done,
+		.value = options,
+		.mode = SuggestMode::Gift,
+	});
+	*weak = priceBox.data();
+	show->show(std::move(priceBox));
+}
+
 void GiftReleasedByHandler(not_null<PeerData*> peer) {
 	const auto session = &peer->session();
 	const auto window = session->tryResolveWindow(peer);

Telegram/SourceFiles/boxes/star_gift_box.h

@@ -95,6 +95,10 @@ void ShowUniqueGiftSellBox(
 	Data::SavedStarGiftId savedId,
 	Settings::GiftWearBoxStyleOverride st);
 
+void ShowOfferBuyBox(
+	std::shared_ptr<ChatHelpers::Show> show,
+	std::shared_ptr<Data::UniqueGift> unique);
+
 void GiftReleasedByHandler(not_null<PeerData*> peer);
 
 struct StarGiftUpgradeArgs {

Telegram/SourceFiles/data/data_msg_id.h

@@ -213,6 +213,7 @@ struct SuggestPostOptions {
 	uint32 priceNano : 31 = 0;
 	uint32 ton : 1 = 0;
 	TimeId date = 0;
+	TimeId offerDuration = 0;
 
 	[[nodiscard]] CreditsAmount price() const {
 		return CreditsAmount(

Telegram/SourceFiles/data/data_star_gift.h

@@ -76,6 +76,7 @@ struct UniqueGift {
 	int64 nanoTonForResale = -1;
 	int starsForResale = -1;
 	int starsForTransfer = -1;
+	int starsMinOffer = -1;
 	int number = 0;
 	bool onlyAcceptTon = false;
 	bool canBeTheme = false;

Telegram/SourceFiles/export/data/export_data_types.cpp

@@ -905,6 +905,20 @@ UserpicsSlice ParseUserpicsSlice(
 	return result;
 }
 
+[[nodiscard]] ActionStarGift ParseStarGift(const MTPStarGift &gift) {
+	return gift.match([&](const MTPDstarGift &gift) {
+		return ActionStarGift{
+			.giftId = uint64(gift.vid().v),
+			.stars = int64(gift.vstars().v),
+			.limited = gift.is_limited(),
+		};
+	}, [&](const MTPDstarGiftUnique &gift) {
+		return ActionStarGift{
+			.giftId = uint64(gift.vid().v),
+		};
+	});
+}
+
 File &Story::file() {
 	return media.file();
 }
@@ -1744,41 +1758,16 @@ ServiceAction ParseServiceAction(
 			.isUnclaimed = data.is_unclaimed(),
 		};
 	}, [&](const MTPDmessageActionStarGift &data) {
-		data.vgift().match([&](const MTPDstarGift &gift) {
-			result.content = ActionStarGift{
-				.giftId = uint64(gift.vid().v),
-				.stars = int64(gift.vstars().v),
-				.text = (data.vmessage()
-					? ParseText(
-						data.vmessage()->data().vtext(),
-						data.vmessage()->data().ventities().v)
-					: std::vector<TextPart>()),
-				.anonymous = data.is_name_hidden(),
-				.limited = gift.is_limited(),
-			};
-		}, [&](const MTPDstarGiftUnique &gift) {
-			result.content = ActionStarGift{
-				.giftId = uint64(gift.vid().v),
-				.text = (data.vmessage()
-					? ParseText(
-						data.vmessage()->data().vtext(),
-						data.vmessage()->data().ventities().v)
-					: std::vector<TextPart>()),
-				.anonymous = data.is_name_hidden(),
-			};
-		});
+		auto content = ParseStarGift(data.vgift());
+		content.text = (data.vmessage()
+			? ParseText(
+				data.vmessage()->data().vtext(),
+				data.vmessage()->data().ventities().v)
+			: std::vector<TextPart>());
+		content.anonymous = data.is_name_hidden();
+		result.content = content;
 	}, [&](const MTPDmessageActionStarGiftUnique &data) {
-		data.vgift().match([&](const MTPDstarGift &gift) {
-			result.content = ActionStarGift{
-				.giftId = uint64(gift.vid().v),
-				.stars = int64(gift.vstars().v),
-				.limited = gift.is_limited(),
-			};
-		}, [&](const MTPDstarGiftUnique &gift) {
-			result.content = ActionStarGift{
-				.giftId = uint64(gift.vid().v),
-			};
-		});
+		result.content = ParseStarGift(data.vgift());
 	}, [&](const MTPDmessageActionPaidMessagesRefunded &data) {
 		result.content = ActionPaidMessagesRefunded{
 			.messages = data.vcount().v,
@@ -1844,6 +1833,21 @@ ServiceAction ParseServiceAction(
 			fields.vmonth().v,
 			fields.vyear().value_or_empty());
 		result.content = content;
+	}, [&](const MTPDmessageActionStarGiftPurchaseOffer &data) {
+		auto content = ParseStarGift(data.vgift());
+		content.offer = true;
+		content.offerPrice = CreditsAmountFromTL(data.vprice());
+		content.offerExpireAt = data.vexpires_at().v;
+		content.offerAccepted = data.is_accepted();
+		content.offerDeclined = data.is_declined();
+		result.content = content;
+	}, [&](const MTPDmessageActionStarGiftPurchaseOfferDeclined &data) {
+		auto content = ParseStarGift(data.vgift());
+		content.offer = true;
+		content.offerDeclined = true;
+		content.offerExpired = data.is_expired();
+		content.offerPrice = CreditsAmountFromTL(data.vprice());
+		result.content = content;
 	}, [](const MTPDmessageActionEmpty &data) {});
 	return result;
 }

Telegram/SourceFiles/export/data/export_data_types.h

@@ -690,6 +690,13 @@ struct ActionStarGift {
 	std::vector<TextPart> text;
 	bool anonymous = false;
 	bool limited = false;
+
+	CreditsAmount offerPrice;
+	TimeId offerExpireAt = 0;
+	bool offer = false;
+	bool offerAccepted = false;
+	bool offerDeclined = false;
+	bool offerExpired = false;
 };
 
 struct ActionPaidMessagesRefunded {

Telegram/SourceFiles/history/history_item.cpp

@@ -6393,7 +6393,7 @@ void HistoryItem::setServiceMessageByAction(const MTPmessageAction &action) {
 		Unexpected("PhoneCall type in setServiceMessageFromMtp.");
 	};
 
-	auto prepareSuggestBirthday = [this](const MTPDmessageActionSuggestBirthday &action) {
+	auto prepareSuggestBirthday = [&](const MTPDmessageActionSuggestBirthday &action) {
 		auto result = PreparedServiceText{};
 		const auto isSelf = (_from->id == _from->session().userPeerId());
 		const auto peer = isSelf ? history()->peer : _from;
@@ -6412,6 +6412,16 @@ void HistoryItem::setServiceMessageByAction(const MTPmessageAction &action) {
 		return result;
 	};
 
+	auto prepareStarGiftPurchaseOffer = [&](const MTPDmessageActionStarGiftPurchaseOffer &action) {
+		auto result = PreparedServiceText{};
+		return result;
+	};
+
+	auto prepareStarGiftPurchaseOfferDeclined = [&](const MTPDmessageActionStarGiftPurchaseOfferDeclined &action) {
+		auto result = PreparedServiceText{};
+		return result;
+	};
+
 	setServiceText(action.match(
 		prepareChatAddUserText,
 		prepareChatJoinedByLink,
@@ -6469,6 +6479,8 @@ void HistoryItem::setServiceMessageByAction(const MTPmessageAction &action) {
 		prepareSuggestedPostSuccess,
 		prepareSuggestedPostRefund,
 		prepareSuggestBirthday,
+		prepareStarGiftPurchaseOffer,
+		prepareStarGiftPurchaseOfferDeclined,
 		PrepareEmptyText<MTPDmessageActionRequestedPeerSentMe>,
 		PrepareErrorText<MTPDmessageActionEmpty>));
 

Telegram/SourceFiles/history/view/controls/history_view_suggest_options.cpp

@@ -31,6 +31,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/layers/generic_box.h"
 #include "ui/text/text_utilities.h"
 #include "ui/boxes/choose_date_time.h"
+#include "ui/boxes/single_choice_box.h"
 #include "ui/controls/ton_common.h"
 #include "ui/widgets/fields/number_input.h"
 #include "ui/widgets/fields/input_field.h"
@@ -401,6 +402,7 @@ void ChooseSuggestPriceBox(
 		rpl::event_stream<> fieldsChanges;
 		rpl::variable<CreditsAmount> price;
 		rpl::variable<TimeId> date;
+		rpl::variable<TimeId> offerDuration;
 		rpl::variable<bool> ton;
 		Fn<std::optional<CreditsAmount>()> computePrice;
 		Fn<void()> save;
@@ -413,6 +415,7 @@ void ChooseSuggestPriceBox(
 	state->price = args.value.price();
 
 	const auto peer = args.peer;
+	const auto mode = args.mode;
 	const auto admin = peer->amMonoforumAdmin();
 	const auto broadcast = peer->monoforumBroadcast();
 	const auto usePeer = broadcast ? broadcast : peer;
@@ -426,7 +429,9 @@ void ChooseSuggestPriceBox(
 
 	box->setStyle(st::suggestPriceBox);
 
-	auto title = (args.mode == SuggestMode::New)
+	auto title = (mode == SuggestMode::Gift)
+		? tr::lng_gift_offer_title()
+		: (mode == SuggestMode::New)
 		? tr::lng_suggest_options_title()
 		: tr::lng_suggest_options_change();
 	if (admin) {
@@ -567,17 +572,27 @@ void ChooseSuggestPriceBox(
 	auto starsAbout = admin
 		? rpl::combine(
 			youGet(StarsPriceValue(state->price.value()), true),
-			tr::lng_suggest_options_stars_warning(Ui::Text::RichLangValue)
+			tr::lng_suggest_options_stars_warning(tr::rich)
 		) | rpl::map([=](const QString &t1, const TextWithEntities &t2) {
 			return TextWithEntities{ t1 }.append("\n\n").append(t2);
 		})
-		: tr::lng_suggest_options_stars_price_about(Ui::Text::WithEntities);
+		: (mode == SuggestMode::Gift)
+		? tr::lng_gift_offer_stars_about(
+			lt_name,
+			rpl::single(tr::marked(args.giftName)),
+			tr::rich)
+		: tr::lng_suggest_options_stars_price_about(tr::rich);
 	auto tonAbout = admin
 		? youGet(
 			TonPriceValue(state->price.value()),
 			false
-		) | Ui::Text::ToWithEntities()
-		: tr::lng_suggest_options_ton_price_about(Ui::Text::WithEntities);
+		) | rpl::map(tr::rich)
+		: (mode == SuggestMode::Gift)
+		? tr::lng_gift_offer_ton_about(
+			lt_name,
+			rpl::single(tr::marked(args.giftName)),
+			tr::rich)
+		: tr::lng_suggest_options_ton_price_about(tr::rich);
 	auto priceInput = AddStarsTonPriceInput(container, {
 		.session = session,
 		.showTon = state->ton.value(),
@@ -595,39 +610,94 @@ void ChooseSuggestPriceBox(
 
 	Ui::AddSkip(container);
 
-	const auto time = Settings::AddButtonWithLabel(
-		container,
-		tr::lng_suggest_options_date(),
-		state->date.value() | rpl::map([](TimeId date) {
-			return date
-				? langDateTime(base::unixtime::parse(date))
-				: tr::lng_suggest_options_date_any(tr::now);
-		}),
-		st::settingsButtonNoIcon);
-
-	time->setClickedCallback([=] {
-		const auto weak = std::make_shared<base::weak_qptr<Ui::BoxContent>>();
-		const auto parentWeak = base::make_weak(box);
-		const auto done = [=](TimeId result) {
-			if (parentWeak) {
-				state->date = result;
-			}
-			if (const auto strong = weak->get()) {
-				strong->closeBox();
-			}
+	if (args.mode == SuggestMode::Gift) {
+		const auto day = 86400;
+		auto durations = std::vector{
+			day / 4,
+			day / 2,
+			day,
+			day + day / 2,
+			day * 2,
+			day * 3,
 		};
-		auto dateBox = Box(ChooseSuggestTimeBox, SuggestTimeBoxArgs{
-			.session = session,
-			.done = done,
-			.value = state->date.current(),
-			.mode = args.mode,
-		});
-		*weak = dateBox.data();
-		box->uiShow()->show(std::move(dateBox));
-	});
+		if (peer->session().isTestMode()) {
+			durations.insert(begin(durations), 120);
+		}
+		const auto durationToText = [](TimeId date) {
+			return (date >= 3600)
+				? tr::lng_hours(tr::now, lt_count, date / 3600)
+				: tr::lng_minutes(tr::now, lt_count, date / 60);
+		};
+		state->offerDuration = day;
+		const auto duration = Settings::AddButtonWithLabel(
+			container,
+			tr::lng_gift_offer_duration(),
+			state->offerDuration.value() | rpl::map(durationToText),
+			st::settingsButtonNoIcon);
 
-	Ui::AddSkip(container);
-	Ui::AddDividerText(container, tr::lng_suggest_options_date_about());
+		duration->setClickedCallback([=] {
+			box->uiShow()->show(Box([=](not_null<Ui::GenericBox*> box) {
+				const auto save = [=](int index) {
+					state->offerDuration = durations[index];
+				};
+				auto options = durations
+					| ranges::views::transform(durationToText)
+					| ranges::to_vector;
+				const auto selected = ranges::find(
+					durations,
+					state->offerDuration.current());
+				SingleChoiceBox(box, {
+					.title = tr::lng_settings_angle_backend(),
+					.options = options,
+					.initialSelection = int(selected - begin(durations)),
+					.callback = save,
+				});
+			}));
+		});
+
+		Ui::AddSkip(container);
+		Ui::AddDividerText(
+			container,
+			tr::lng_gift_offer_duration_about(
+				lt_user,
+				rpl::single(peer->shortName())));
+	} else {
+		const auto time = Settings::AddButtonWithLabel(
+			container,
+			tr::lng_suggest_options_date(),
+			state->date.value() | rpl::map([](TimeId date) {
+				return date
+					? langDateTime(base::unixtime::parse(date))
+					: tr::lng_suggest_options_date_any(tr::now);
+			}),
+			st::settingsButtonNoIcon);
+
+		time->setClickedCallback([=] {
+			const auto weak = std::make_shared<
+				base::weak_qptr<Ui::BoxContent>
+			>();
+			const auto parentWeak = base::make_weak(box);
+			const auto done = [=](TimeId result) {
+				if (parentWeak) {
+					state->date = result;
+				}
+				if (const auto strong = weak->get()) {
+					strong->closeBox();
+				}
+			};
+			auto dateBox = Box(ChooseSuggestTimeBox, SuggestTimeBoxArgs{
+				.session = session,
+				.done = done,
+				.value = state->date.current(),
+				.mode = args.mode,
+			});
+			*weak = dateBox.data();
+			box->uiShow()->show(std::move(dateBox));
+		});
+
+		Ui::AddSkip(container);
+		Ui::AddDividerText(container, tr::lng_suggest_options_date_about());
+	}
 
 	state->save = [=] {
 		const auto ton = uint32(state->ton.current() ? 1 : 0);
@@ -674,6 +744,7 @@ void ChooseSuggestPriceBox(
 			.priceNano = uint32(value.nano()),
 			.ton = ton,
 			.date = state->date.current(),
+			.offerDuration = state->offerDuration.current(),
 		});
 	};
 

Telegram/SourceFiles/history/view/controls/history_view_suggest_options.h

@@ -34,6 +34,7 @@ enum class SuggestMode {
 	New,
 	Change,
 	Publish,
+	Gift,
 };
 
 struct SuggestTimeBoxArgs {
@@ -91,6 +92,7 @@ struct SuggestPriceBoxArgs {
 	Fn<void(SuggestPostOptions)> done;
 	SuggestPostOptions value;
 	SuggestMode mode = SuggestMode::New;
+	QString giftName;
 };
 void ChooseSuggestPriceBox(
 	not_null<Ui::GenericBox*> box,

Telegram/SourceFiles/info/channel_statistics/boosts/giveaway/giveaway.style

@@ -235,6 +235,7 @@ darkGiftHide: icon {{ "menu/stealth", groupCallMembersFg }};
 darkGiftShow: icon {{ "menu/show_in_chat", groupCallMembersFg }};
 darkGiftPin: icon {{ "menu/pin", groupCallMembersFg }};
 darkGiftUnpin: icon {{ "menu/unpin", groupCallMembersFg }};
+darkGiftOffer: icon {{ "menu/earn", groupCallMembersFg }};
 darkGiftPalette: TextPalette(defaultTextPalette) {
 	linkFg: mediaviewTextLinkFg;
 	monoFg: groupCallMembersFg;

Telegram/SourceFiles/mtproto/scheme/api.tl

@@ -187,7 +187,7 @@ messageActionPaymentRefunded#41b3e202 flags:# peer:Peer currency:string total_am
 messageActionGiftStars#45d5b021 flags:# currency:string amount:long stars:long crypto_currency:flags.0?string crypto_amount:flags.0?long transaction_id:flags.1?string = MessageAction;
 messageActionPrizeStars#b00c47a2 flags:# unclaimed:flags.0?true stars:long transaction_id:string boost_peer:Peer giveaway_msg_id:int = MessageAction;
 messageActionStarGift#db596550 flags:# name_hidden:flags.0?true saved:flags.2?true converted:flags.3?true upgraded:flags.5?true refunded:flags.9?true can_upgrade:flags.10?true prepaid_upgrade:flags.13?true upgrade_separate:flags.16?true auction_acquired:flags.17?true gift:StarGift message:flags.1?TextWithEntities convert_stars:flags.4?long upgrade_msg_id:flags.5?int upgrade_stars:flags.8?long from_id:flags.11?Peer peer:flags.12?Peer saved_id:flags.12?long prepaid_upgrade_hash:flags.14?string gift_msg_id:flags.15?int to_id:flags.18?Peer = MessageAction;
-messageActionStarGiftUnique#95728543 flags:# upgrade:flags.0?true transferred:flags.1?true saved:flags.2?true refunded:flags.5?true prepaid_upgrade:flags.11?true assigned:flags.13?true gift:StarGift can_export_at:flags.3?int transfer_stars:flags.4?long from_id:flags.6?Peer peer:flags.7?Peer saved_id:flags.7?long resale_amount:flags.8?StarsAmount can_transfer_at:flags.9?int can_resell_at:flags.10?int drop_original_details_stars:flags.12?long = MessageAction;
+messageActionStarGiftUnique#95728543 flags:# upgrade:flags.0?true transferred:flags.1?true saved:flags.2?true refunded:flags.5?true prepaid_upgrade:flags.11?true assigned:flags.13?true from_offer:flags.14?true gift:StarGift can_export_at:flags.3?int transfer_stars:flags.4?long from_id:flags.6?Peer peer:flags.7?Peer saved_id:flags.7?long resale_amount:flags.8?StarsAmount can_transfer_at:flags.9?int can_resell_at:flags.10?int drop_original_details_stars:flags.12?long = MessageAction;
 messageActionPaidMessagesRefunded#ac1f1fcd count:int stars:long = MessageAction;
 messageActionPaidMessagesPrice#84b88578 flags:# broadcast_messages_allowed:flags.0?true stars:long = MessageAction;
 messageActionConferenceCall#2ffe2f7a flags:# missed:flags.0?true active:flags.1?true video:flags.4?true call_id:long duration:flags.2?int other_participants:flags.3?Vector<Peer> = MessageAction;
@@ -198,6 +198,8 @@ messageActionSuggestedPostSuccess#95ddcf69 price:StarsAmount = MessageAction;
 messageActionSuggestedPostRefund#69f916f8 flags:# payer_initiated:flags.0?true = MessageAction;
 messageActionGiftTon#a8a3c699 flags:# currency:string amount:long crypto_currency:string crypto_amount:long transaction_id:flags.0?string = MessageAction;
 messageActionSuggestBirthday#2c8f2a25 birthday:Birthday = MessageAction;
+messageActionStarGiftPurchaseOffer#774278d4 flags:# accepted:flags.0?true declined:flags.1?true gift:StarGift price:StarsAmount expires_at:int = MessageAction;
+messageActionStarGiftPurchaseOfferDeclined#73ada76b flags:# expired:flags.0?true gift:StarGift price:StarsAmount = MessageAction;
 
 dialog#d58a08c6 flags:# pinned:flags.2?true unread_mark:flags.3?true view_forum_as_messages:flags.6?true peer:Peer top_message:int read_inbox_max_id:int read_outbox_max_id:int unread_count:int unread_mentions_count:int unread_reactions_count:int notify_settings:PeerNotifySettings pts:flags.0?int draft:flags.1?DraftMessage folder_id:flags.4?int ttl_period:flags.5?int = Dialog;
 dialogFolder#71bd134c flags:# pinned:flags.2?true folder:Folder peer:Peer top_message:int unread_muted_peers_count:int unread_unmuted_peers_count:int unread_muted_messages_count:int unread_unmuted_messages_count:int = Dialog;
@@ -1915,7 +1917,7 @@ starsGiveawayOption#94ce852a flags:# extended:flags.0?true default:flags.1?true
 starsGiveawayWinnersOption#54236209 flags:# default:flags.0?true users:int per_user_stars:long = StarsGiveawayWinnersOption;
 
 starGift#1b9a4d7f flags:# limited:flags.0?true sold_out:flags.1?true birthday:flags.2?true require_premium:flags.7?true limited_per_user:flags.8?true peer_color_available:flags.10?true auction:flags.11?true id:long sticker:Document stars:long availability_remains:flags.0?int availability_total:flags.0?int availability_resale:flags.4?long convert_stars:long first_sale_date:flags.1?int last_sale_date:flags.1?int upgrade_stars:flags.3?long resell_min_stars:flags.4?long title:flags.5?string released_by:flags.6?Peer per_user_total:flags.8?int per_user_remains:flags.8?int locked_until_date:flags.9?int auction_slug:flags.11?string gifts_per_round:flags.11?int = StarGift;
-starGiftUnique#b0bf741b flags:# require_premium:flags.6?true resale_ton_only:flags.7?true theme_available:flags.9?true id:long gift_id:long title:string slug:string num:int owner_id:flags.0?Peer owner_name:flags.1?string owner_address:flags.2?string attributes:Vector<StarGiftAttribute> availability_issued:int availability_total:int gift_address:flags.3?string resell_amount:flags.4?Vector<StarsAmount> released_by:flags.5?Peer value_amount:flags.8?long value_currency:flags.8?string theme_peer:flags.10?Peer peer_color:flags.11?PeerColor host_id:flags.12?Peer = StarGift;
+starGiftUnique#9f2fb096 flags:# require_premium:flags.6?true resale_ton_only:flags.7?true theme_available:flags.9?true id:long gift_id:long title:string slug:string num:int owner_id:flags.0?Peer owner_name:flags.1?string owner_address:flags.2?string attributes:Vector<StarGiftAttribute> availability_issued:int availability_total:int gift_address:flags.3?string resell_amount:flags.4?Vector<StarsAmount> released_by:flags.5?Peer value_amount:flags.8?long value_currency:flags.8?string theme_peer:flags.10?Peer peer_color:flags.11?PeerColor host_id:flags.12?Peer offer_min_stars:flags.13?int = StarGift;
 
 payments.starGiftsNotModified#a388a368 = payments.StarGifts;
 payments.starGifts#2ed82995 hash:int gifts:Vector<StarGift> chats:Vector<Chat> users:Vector<User> = payments.StarGifts;
@@ -2732,6 +2734,8 @@ payments.checkCanSendGift#c0c4edc9 gift_id:long = payments.CheckCanSendGiftResul
 payments.getStarGiftAuctionState#5c9ff4d6 auction:InputStarGiftAuction version:int = payments.StarGiftAuctionState;
 payments.getStarGiftAuctionAcquiredGifts#6ba2cbec gift_id:long = payments.StarGiftAuctionAcquiredGifts;
 payments.getStarGiftActiveAuctions#a5d0514d hash:long = payments.StarGiftActiveAuctions;
+payments.resolveStarGiftOffer#e9ce781c flags:# decline:flags.0?true offer_msg_id:int = Updates;
+payments.sendStarGiftOffer#8fb86b41 flags:# peer:InputPeer slug:string price:StarsAmount duration:int random_id:long allow_paid_stars:flags.0?long = Updates;
 
 stickers.createStickerSet#9021ab67 flags:# masks:flags.0?true emojis:flags.5?true text_color:flags.6?true user_id:InputUser title:string short_name:string thumb:flags.2?InputDocument stickers:Vector<InputStickerSetItem> software:flags.3?string = messages.StickerSet;
 stickers.removeStickerFromSet#f7760f51 sticker:InputDocument = messages.StickerSet;
@@ -2867,4 +2871,4 @@ smsjobs.finishJob#4f1ebf24 flags:# job_id:string error:flags.0?string = Bool;
 
 fragment.getCollectibleInfo#be1e85ba collectible:InputCollectible = fragment.CollectibleInfo;
 
-// LAYER 219
+// LAYER 220

Telegram/SourceFiles/settings/settings_credits_graphics.cpp

@@ -964,6 +964,21 @@ void ProcessReceivedSubscriptions(
 	// (owner->isChannel() && owner->asChannel()->canTransferGifts());
 }
 
+[[nodiscard]] bool ShowOfferBuyButton(
+		not_null<Main::Session*> session,
+		const Data::CreditsHistoryEntry &e) {
+	const auto unique = e.uniqueGift.get();
+	const auto owner = (unique && unique->ownerId)
+		? session->data().peer(unique->ownerId).get()
+		: nullptr;
+	return owner
+		&& owner->isUser()
+		&& !owner->isSelf()
+		&& (unique->starsMinOffer >= 0);
+	// Currently we're not making offers for channel gifts.
+	// (owner->isChannel() && !owner->asChannel()->canTransferGifts());
+}
+
 void FillUniqueGiftMenu(
 		std::shared_ptr<ChatHelpers::Show> show,
 		not_null<Ui::PopupMenu*> menu,
@@ -1158,6 +1173,10 @@ void FillUniqueGiftMenu(
 				}));
 			}, st.unlist ? st.unlist : &st::menuIconTagRemove);
 		}
+	} else if (ShowOfferBuyButton(&show->session(), e)) {
+		menu->addAction(tr::lng_gift_offer_button(tr::now), [=] {
+			ShowOfferBuyBox(show, unique);
+		}, st.offer ? st.offer : &st::menuIconEarn);
 	}
 }
 
@@ -1193,6 +1212,7 @@ CreditsEntryBoxStyleOverrides DarkCreditsEntryBoxStyle() {
 		.hide = &st::darkGiftHide,
 		.pin = &st::darkGiftPin,
 		.unpin = &st::darkGiftUnpin,
+		.offer = &st::darkGiftOffer,
 		.shareBox = std::make_shared<ShareBoxStyleOverrides>(
 			DarkShareBoxStyle()),
 		.giftWearBox = std::make_shared<GiftWearBoxStyleOverride>(

Telegram/SourceFiles/settings/settings_credits_graphics.h

@@ -127,6 +127,7 @@ struct CreditsEntryBoxStyleOverrides {
 	const style::icon *hide = nullptr;
 	const style::icon *pin = nullptr;
 	const style::icon *unpin = nullptr;
+	const style::icon *offer = nullptr;
 	std::shared_ptr<ShareBoxStyleOverrides> shareBox;
 	std::shared_ptr<GiftWearBoxStyleOverride> giftWearBox;
 };