Process offers with accept / reject.

Telegram/Resources/langs/lang.strings

@@ -2291,8 +2291,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_action_proximity_distance_km#other" = "{count} km";
 "lng_action_webview_data_done" = "Data from the \"{text}\" button was transferred to the bot.";
 "lng_action_gift_received" = "{user} sent you a gift for {cost}";
+"lng_action_gift_received_sold" = "{user} sold you a gift for {cost}";
 "lng_action_gift_unique_received" = "{user} sent you a unique collectible item";
 "lng_action_gift_sent" = "You sent a gift for {cost}";
+"lng_action_gift_sent_sold" = "You sold a gift for {cost}";
 "lng_action_gift_unique_sent" = "You sent a unique collectible item";
 "lng_action_gift_upgraded" = "{user} turned the gift from you into a unique collectible";
 "lng_action_gift_upgraded_channel" = "{user} turned this gift to {channel} into a unique collectible";
@@ -3959,6 +3961,11 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "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_offer_confirm_reject" = "Do you want to reject the offer?";
+"lng_gift_offer_confirm_accept" = "Do you want to sell {name} to {user} for {cost}?";
+"lng_gift_offer_you_get" = "You will receive {cost} after fees.";
+"lng_gift_offer_value_higher" = "{percent} higher";
+"lng_gift_offer_sell_for" = "Sell for {price}";
 "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_suggest_post.cpp

@@ -9,6 +9,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "apiwrap.h"
 #include "base/unixtime.h"
+#include "boxes/transfer_gift_box.h"
 #include "chat_helpers/message_field.h"
 #include "core/click_handler_types.h"
 #include "data/components/credits.h"
@@ -504,6 +505,20 @@ void SuggestApprovalPrice(
 	}, SuggestMode::Change);
 }
 
+void ConfirmGiftSaleAccept(
+		not_null<Window::SessionController*> window,
+		not_null<HistoryItem*> item,
+		not_null<HistoryMessageSuggestion*> suggestion) {
+	ShowGiftSaleAcceptBox(window, item, suggestion);
+}
+
+void ConfirmGiftSaleDecline(
+		not_null<Window::SessionController*> window,
+		not_null<HistoryItem*> item,
+		not_null<HistoryMessageSuggestion*> suggestion) {
+	ShowGiftSaleRejectBox(window, item, suggestion);
+}
+
 } // namespace
 
 std::shared_ptr<ClickHandler> AcceptClickHandler(
@@ -524,6 +539,8 @@ std::shared_ptr<ClickHandler> AcceptClickHandler(
 		const auto suggestion = item->Get<HistoryMessageSuggestion>();
 		if (!suggestion) {
 			return;
+		} else if (suggestion->gift) {
+			ConfirmGiftSaleAccept(controller, item, suggestion);
 		} else if (!suggestion->date) {
 			RequestApprovalDate(show, item);
 		} else {
@@ -546,8 +563,12 @@ std::shared_ptr<ClickHandler> DeclineClickHandler(
 		if (!item) {
 			return;
 		}
-
-		RequestDeclineComment(controller->uiShow(), item);
+		const auto suggestion = item->Get<HistoryMessageSuggestion>();
+		if (suggestion && suggestion->gift) {
+			ConfirmGiftSaleDecline(controller, item, suggestion);
+		} else {
+			RequestDeclineComment(controller->uiShow(), item);
+		}
 	});
 }
 

Telegram/SourceFiles/boxes/transfer_gift_box.cpp

@@ -24,7 +24,11 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_star_gift.h"
 #include "data/data_thread.h"
 #include "data/data_user.h"
+#include "history/history.h"
+#include "history/history_item.h"
+#include "history/history_item_components.h"
 #include "lang/lang_keys.h"
+#include "main/main_app_config.h"
 #include "main/main_session.h"
 #include "payments/payments_checkout_process.h"
 #include "ui/boxes/confirm_box.h"
@@ -492,6 +496,26 @@ void TransferGift(
 	}
 }
 
+void ResolveGiftSaleOffer(
+		not_null<Window::SessionController*> window,
+		MsgId id,
+		bool accept,
+		Fn<void(bool)> done) {
+	using Flag = MTPpayments_ResolveStarGiftOffer::Flag;
+	const auto session = &window->session();
+	const auto show = window->uiShow();
+	session->api().request(MTPpayments_ResolveStarGiftOffer(
+		MTP_flags(accept ? Flag() : Flag::f_decline),
+		MTP_int(id.bare)
+	)).done([=](const MTPUpdates &result) {
+		session->api().applyUpdates(result);
+		done(true);
+	}).fail([=](const MTP::Error &error) {
+		show->showToast(error.type());
+		done(false);
+	}).send();
+}
+
 void BuyResaleGift(
 		std::shared_ptr<ChatHelpers::Show> show,
 		not_null<PeerData*> to,
@@ -687,6 +711,122 @@ void ShowTransferGiftBox(
 		Ui::LayerOption::KeepOther);
 }
 
+void ShowGiftSaleAcceptBox(
+		not_null<Window::SessionController*> controller,
+		not_null<HistoryItem*> item,
+		not_null<HistoryMessageSuggestion*> suggestion) {
+	const auto id = item->id;
+	const auto peer = item->history()->peer;
+	const auto gift = suggestion->gift;
+	const auto price = suggestion->price;
+
+	const auto &appConfig = controller->session().appConfig();
+	const auto starsThousandths = appConfig.giftResaleStarsThousandths();
+	const auto nanoTonThousandths = appConfig.giftResaleNanoTonThousandths();
+
+	controller->show(Box([=](not_null<Ui::GenericBox*> box) {
+		auto button = tr::lng_gift_offer_sell_for(
+			lt_price,
+			rpl::single(Ui::Text::IconEmoji(
+				&st::starIconEmoji
+			).append(Lang::FormatCreditsAmountDecimal(
+				price
+			))),
+			tr::marked);
+
+		struct State {
+			bool sent = false;
+		};
+		const auto state = std::make_shared<State>();
+		auto callback = [=] {
+			if (state->sent) {
+				return;
+			}
+			state->sent = true;
+			const auto weak = base::make_weak(controller);
+			const auto weakBox = base::make_weak(box);
+			ResolveGiftSaleOffer(controller, id, true, [=](bool ok) {
+				state->sent = false;
+				if (ok) {
+					if (const auto strong = weak.get()) {
+						strong->showPeerHistory(peer->id);
+					}
+					if (const auto strong = weakBox.get()) {
+						strong->closeBox();
+					}
+				}
+			});
+		};
+
+		const auto receive = price.ton()
+			? ((price.value() * nanoTonThousandths) / 1000.)
+			: ((int64(price.value()) * starsThousandths) / 1000);
+
+		box->addRow(
+			CreateGiftTransfer(box->verticalLayout(), gift, peer),
+			QMargins(0, st::boxPadding.top(), 0, 0));
+
+		Ui::ConfirmBox(box, {
+			.text = tr::lng_gift_offer_confirm_accept(
+				tr::now,
+				lt_name,
+				tr::bold(UniqueGiftName(*gift)),
+				lt_user,
+				tr::bold(peer->shortName()),
+				lt_cost,
+				tr::bold(PrepareCreditsAmountText(price)),
+				tr::marked
+			).append(u"\n\n"_q).append(tr::lng_gift_offer_you_get(
+				tr::now,
+				lt_cost,
+				tr::bold(price.stars()
+					? tr::lng_action_gift_for_stars(
+						tr::now,
+						lt_count_decimal,
+						receive)
+					: tr::lng_action_gift_for_ton(
+						tr::now,
+						lt_count_decimal,
+						receive)),
+				tr::marked)),
+			.confirmed = std::move(callback),
+			.confirmText = std::move(button),
+		});
+
+		const auto show = controller->uiShow();
+		AddTransferGiftTable(show, box->verticalLayout(), gift);
+	}));
+}
+
+void ShowGiftSaleRejectBox(
+		not_null<Window::SessionController*> controller,
+		not_null<HistoryItem*> item,
+		not_null<HistoryMessageSuggestion*> suggestion) {
+	struct State {
+		bool sent = false;
+	};
+	const auto id = item->id;
+	const auto state = std::make_shared<State>();
+	auto callback = [=](Fn<void()> close) {
+		if (state->sent) {
+			return;
+		}
+		state->sent = true;
+		const auto weak = base::make_weak(controller);
+		ResolveGiftSaleOffer(controller, id, false, [=](bool ok) {
+			state->sent = false;
+			if (ok) {
+				close();
+			}
+		});
+	};
+	controller->show(Ui::MakeConfirmBox({
+		.text = tr::lng_gift_offer_confirm_reject(),
+		.confirmed = std::move(callback),
+		.confirmText = tr::lng_action_gift_offer_decline(),
+	}));
+}
+
 void SetThemeFromUniqueGift(
 		not_null<Window::SessionController*> window,
 		std::shared_ptr<Data::UniqueGift> unique) {

Telegram/SourceFiles/boxes/transfer_gift_box.h

@@ -7,6 +7,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once
 
+struct HistoryMessageSuggestion;
+
 namespace Window {
 class SessionController;
 } // namespace Window
@@ -36,6 +38,15 @@ void ShowTransferGiftBox(
 	std::shared_ptr<Data::UniqueGift> gift,
 	Data::SavedStarGiftId savedId);
 
+void ShowGiftSaleAcceptBox(
+	not_null<Window::SessionController*> controller,
+	not_null<HistoryItem*> item,
+	not_null<HistoryMessageSuggestion*> suggestion);
+void ShowGiftSaleRejectBox(
+	not_null<Window::SessionController*> controller,
+	not_null<HistoryItem*> item,
+	not_null<HistoryMessageSuggestion*> suggestion);
+
 void ShowBuyResaleGiftBox(
 	std::shared_ptr<ChatHelpers::Show> show,
 	std::shared_ptr<Data::UniqueGift> gift,

Telegram/SourceFiles/history/history_item.cpp

@@ -6202,6 +6202,7 @@ void HistoryItem::setServiceMessageByAction(const MTPmessageAction &action) {
 		auto result = PreparedServiceText();
 		const auto isSelf = _from->isSelf();
 		const auto resale = CreditsAmountFromTL(action.vresale_amount());
+		const auto fromOffer = action.is_from_offer();
 		const auto resaleCost = !resale
 			? tr::marked()
 			: tr::marked(PrepareCreditsAmountText(resale));
@@ -6283,7 +6284,21 @@ void HistoryItem::setServiceMessageByAction(const MTPmessageAction &action) {
 				if (!resale || !isSelf) {
 					result.links.push_back(from->createOpenLink());
 				}
-				result.text = resale
+				result.text = fromOffer
+					? (isSelf
+						? tr::lng_action_gift_sent_sold(
+							tr::now,
+							lt_cost,
+							resaleCost,
+							Ui::Text::WithEntities)
+						: tr::lng_action_gift_received_sold(
+							tr::now,
+							lt_user,
+							Ui::Text::Link(peer->shortName(), 1), // Link 1.
+							lt_cost,
+							resaleCost,
+							Ui::Text::WithEntities))
+					: resale
 					? (isSelf
 						? tr::lng_action_gift_sent(
 							tr::now,