Added API support for prepaid giveaways.

Telegram/SourceFiles/api/api_premium.cpp

@@ -390,18 +390,44 @@ rpl::producer<rpl::no_value, QString> PremiumGiftCodeOptions::request() {
 	};
 }
 
+rpl::producer<rpl::no_value, QString> PremiumGiftCodeOptions::applyPrepaid(
+		const Payments::InvoicePremiumGiftCode &invoice,
+		uint64 prepaidId) {
+	return [=](auto consumer) {
+		auto lifetime = rpl::lifetime();
+		const auto channel = _peer->asChannel();
+		if (!channel) {
+			return lifetime;
+		}
+
+		_api.request(MTPpayments_LaunchPrepaidGiveaway(
+			_peer->input,
+			MTP_long(prepaidId),
+			Payments::InvoicePremiumGiftCodeGiveawayToTL(invoice)
+		)).done([=](const MTPUpdates &result) {
+			_peer->session().api().applyUpdates(result);
+			consumer.put_done();
+		}).fail([=](const MTP::Error &error) {
+			consumer.put_error_copy(error.type());
+		}).send();
+
+		return lifetime;
+	};
+}
+
 const std::vector<int> &PremiumGiftCodeOptions::availablePresets() const {
 	return _availablePresets;
 }
 
+[[nodiscard]] int PremiumGiftCodeOptions::monthsFromPreset(int monthsIndex) {
+	return _optionsForOnePerson.months[monthsIndex];
+}
+
 Payments::InvoicePremiumGiftCode PremiumGiftCodeOptions::invoice(
 		int users,
-		int monthsIndex) {
+		int months) {
 	const auto randomId = base::RandomValue<uint64>();
-	const auto token = Token{
-		users,
-		_optionsForOnePerson.months[monthsIndex],
-	};
+	const auto token = Token{ users, months };
 	const auto &store = _stores[token];
 	return Payments::InvoicePremiumGiftCode{
 		.randomId = randomId,

Telegram/SourceFiles/api/api_premium.h

@@ -152,9 +152,13 @@ public:
 	[[nodiscard]] rpl::producer<rpl::no_value, QString> request();
 	[[nodiscard]] Data::SubscriptionOptions options(int amount);
 	[[nodiscard]] const std::vector<int> &availablePresets() const;
+	[[nodiscard]] int monthsFromPreset(int monthsIndex);
 	[[nodiscard]] Payments::InvoicePremiumGiftCode invoice(
 		int users,
-		int monthsIndex);
+		int months);
+	[[nodiscard]] rpl::producer<rpl::no_value, QString> applyPrepaid(
+		const Payments::InvoicePremiumGiftCode &invoice,
+		uint64 prepaidId);
 
 	[[nodiscard]] int giveawayBoostsPerPremium() const;
 	[[nodiscard]] int giveawayCountriesMax() const;

Telegram/SourceFiles/api/api_statistics.cpp

@@ -533,6 +533,20 @@ rpl::producer<rpl::no_value, QString> Boosts::request() {
 			};
 			_boostStatus.link = qs(data.vboost_url());
 
+			if (data.vprepaid_giveaways()) {
+				_boostStatus.prepaidGiveaway = ranges::views::all(
+					data.vprepaid_giveaways()->v
+				) | ranges::views::transform([](const MTPPrepaidGiveaway &r) {
+					return Data::BoostPrepaidGiveaway{
+						.months = r.data().vmonths().v,
+						.id = r.data().vid().v,
+						.quantity = r.data().vquantity().v,
+						.date = QDateTime::fromSecsSinceEpoch(
+							r.data().vdate().v),
+					};
+				}) | ranges::to_vector;
+			}
+
 			using namespace Data;
 			requestBoosts({ .gifts = false }, [=](BoostsListSlice &&slice) {
 				_boostStatus.firstSliceBoosts = std::move(slice);