Added ability to award specific users in giveaway box.

Telegram/SourceFiles/api/api_premium.cpp

@@ -10,11 +10,13 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "api/api_premium_option.h"
 #include "api/api_text_entities.h"
 #include "apiwrap.h"
+#include "base/random.h"
 #include "data/data_document.h"
 #include "data/data_peer.h"
 #include "data/data_peer_values.h"
 #include "data/data_session.h"
 #include "main/main_session.h"
+#include "payments/payments_form.h"
 #include "ui/text/format_values.h"
 
 namespace Api {
@@ -353,9 +355,16 @@ rpl::producer<rpl::no_value, QString> PremiumGiftCodeOptions::request() {
 			for (const auto &tlOption : result.v) {
 				const auto &data = tlOption.data();
 				tlMapOptions[data.vusers().v].push_back(tlOption);
+
+				const auto token = Token{ data.vusers().v, data.vmonths().v };
+				_stores[token] = Store{
+					.amount = data.vamount().v,
+					.product = qs(data.vstore_product().value_or_empty()),
+					.quantity = data.vstore_quantity().value_or_empty(),
+				};
 			}
 			for (const auto &[amount, tlOptions] : tlMapOptions) {
-				if (amount == 1) {
+				if (amount == 1 && _optionsForOnePerson.currency.isEmpty()) {
 					_optionsForOnePerson.currency = qs(
 						tlOptions.front().data().vcurrency());
 					for (const auto &option : tlOptions) {
@@ -376,6 +385,26 @@ rpl::producer<rpl::no_value, QString> PremiumGiftCodeOptions::request() {
 	};
 }
 
+Payments::InvoicePremiumGiftCode PremiumGiftCodeOptions::invoice(
+		int users,
+		int monthsIndex) {
+	const auto randomId = base::RandomValue<uint64>();
+	const auto token = Token{
+		users,
+		_optionsForOnePerson.months[monthsIndex],
+	};
+	const auto &store = _stores[token];
+	return Payments::InvoicePremiumGiftCode{
+		.randomId = randomId,
+		.currency = _optionsForOnePerson.currency,
+		.amount = store.amount,
+		.storeProduct = store.product,
+		.storeQuantity = store.quantity,
+		.users = token.users,
+		.months = token.months,
+	};
+}
+
 Data::SubscriptionOptions PremiumGiftCodeOptions::options(int amount) {
 	const auto it = _subscriptionOptions.find(amount);
 	if (it != end(_subscriptionOptions)) {

Telegram/SourceFiles/api/api_premium.h

@@ -16,6 +16,10 @@ namespace Main {
 class Session;
 } // namespace Main
 
+namespace Payments {
+struct InvoicePremiumGiftCode;
+} // namespace Payments
+
 namespace Api {
 
 struct GiftCode {
@@ -147,10 +151,25 @@ public:
 
 	[[nodiscard]] rpl::producer<rpl::no_value, QString> request();
 	[[nodiscard]] Data::SubscriptionOptions options(int amount);
+	[[nodiscard]] Payments::InvoicePremiumGiftCode invoice(
+		int users,
+		int monthsIndex);
 
 private:
-	const not_null<PeerData*> _peer;
+	struct Token final {
+		int users = 0;
+		int months = 0;
+
+		friend inline constexpr auto operator<=>(Token, Token) = default;
+
+	};
+	struct Store final {
+		uint64 amount = 0;
+		QString product;
+		int quantity = 0;
+	};
 	using Amount = int;
+	const not_null<PeerData*> _peer;
 	base::flat_map<Amount, Data::SubscriptionOptions> _subscriptionOptions;
 	struct {
 		std::vector<int> months;
@@ -158,6 +177,8 @@ private:
 		QString currency;
 	} _optionsForOnePerson;
 
+	base::flat_map<Token, Store> _stores;
+
 	MTP::Sender _api;
 
 };

Telegram/SourceFiles/info/boosts/create_giveaway_box.cpp

@@ -15,6 +15,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "info/boosts/giveaway/giveaway_type_row.h"
 #include "info/info_controller.h"
 #include "lang/lang_keys.h"
+#include "payments/payments_checkout_process.h" // Payments::CheckoutProcess
+#include "payments/payments_form.h" // Payments::InvoicePremiumGiftCode
 #include "settings/settings_common.h"
 #include "settings/settings_premium.h" // Settings::ShowPremium
 #include "ui/effects/premium_graphics.h"
@@ -79,6 +81,8 @@ void CreateGiveawayBox(
 		rpl::event_stream<> toAwardAmountChanged;
 
 		rpl::variable<GiveawayType> typeValue;
+
+		bool confirmButtonBusy = false;
 	};
 	const auto state = box->lifetime().make_state<State>(peer);
 	const auto typeGroup = std::make_shared<GiveawayGroup>();
@@ -213,9 +217,54 @@ void CreateGiveawayBox(
 			rebuildListOptions(1);
 		});
 	}
+	{
+		// TODO mini-icon.
+		const auto &stButton = st::premiumGiftBox;
+		box->setStyle(stButton);
+		auto button = object_ptr<Ui::RoundButton>(
+			box,
+			state->toAwardAmountChanged.events_starting_with(
+				rpl::empty_value()
+			) | rpl::map([=] {
+				return (typeGroup->value() == GiveawayType::SpecificUsers)
+					? tr::lng_giveaway_award()
+					: tr::lng_giveaway_start();
+			}) | rpl::flatten_latest(),
+			st::giveawayGiftCodeStartButton);
+		button->setTextTransform(Ui::RoundButton::TextTransform::NoTransform);
+		button->resizeToWidth(box->width()
+			- stButton.buttonPadding.left()
+			- stButton.buttonPadding.right());
+		button->setClickedCallback([=] {
+			if (state->confirmButtonBusy) {
+				return;
+			}
+			if (typeGroup->value() == GiveawayType::SpecificUsers) {
+				if (state->selectedToAward.empty()) {
+					return;
+				}
+				auto invoice = state->apiOptions.invoice(
+					state->selectedToAward.size(),
+					durationGroup->value());
+				invoice.purpose = Payments::InvoicePremiumGiftCodeUsers{
+					ranges::views::all(
+						state->selectedToAward
+					) | ranges::views::transform([](
+							const not_null<PeerData*> p) {
+						return not_null{ p->asUser() };
+					}) | ranges::to_vector,
+					peer->asChannel(),
+				};
+				state->confirmButtonBusy = true;
+				Payments::CheckoutProcess::Start(
+					std::move(invoice),
+					crl::guard(box, [=](auto) {
+						state->confirmButtonBusy = false;
+						box->window()->setFocus();
+					}));
+			}
+		});
+		box->addButton(std::move(button));
+	}
 	state->typeValue.force_assign(GiveawayType::Random);
-
-	box->addButton(tr::lng_box_ok(), [=] {
-		box->closeBox();
-	});
 }

Telegram/SourceFiles/ui/effects/premium.style

@@ -291,6 +291,11 @@ giveawayGiftCodeLinkMargin: margins(24px, 8px, 24px, 12px);
 giveawayGiftCodeGiftOption: PremiumOption(premiumGiftOption) {
 	badgeShift: point(5px, 0px);
 }
+giveawayGiftCodeStartButton: RoundButton(defaultActiveButton) {
+	height: 42px;
+	textTop: 12px;
+	radius: 6px;
+}
 
 boostLinkStatsButton: IconButton(defaultIconButton) {
 	width: giveawayGiftCodeLinkCopyWidth;