Moved out data of contact birthdays to promo suggestions class.

Telegram/SourceFiles/data/components/promo_suggestions.cpp

@@ -15,12 +15,15 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_changes.h"
 #include "data/data_histories.h"
 #include "data/data_session.h"
+#include "data/data_user.h"
 #include "history/history.h"
 #include "main/main_session.h"
 
 namespace Data {
 namespace {
 
+using UserIds = std::vector<UserId>;
+
 constexpr auto kTopPromotionInterval = TimeId(60 * 60);
 constexpr auto kTopPromotionMinDelay = TimeId(10);
 
@@ -194,7 +197,7 @@ bool PromoSuggestions::current(const QString &key) const {
 			return false;
 		} else {
 			const auto known
-				= _session->data().knownBirthdaysToday();
+				= PromoSuggestions::knownBirthdaysToday();
 			if (!known) {
 				return true;
 			}
@@ -231,4 +234,74 @@ std::optional<CustomSuggestion> PromoSuggestions::custom() const {
 	return _custom;
 }
 
+rpl::producer<UserIds> PromoSuggestions::contactBirthdays(bool force) {
+	if ((_contactBirthdaysLastDayRequest != -1)
+		&& (_contactBirthdaysLastDayRequest == QDate::currentDate().day())
+		&& !force) {
+		return rpl::single(_contactBirthdays);
+	}
+	if (_contactBirthdaysRequestId) {
+		_session->api().request(_contactBirthdaysRequestId).cancel();
+	}
+	return [=](auto consumer) {
+		auto lifetime = rpl::lifetime();
+
+		_contactBirthdaysRequestId = _session->api().request(
+			MTPcontacts_GetBirthdays()
+		).done([=](const MTPcontacts_ContactBirthdays &result) {
+			_contactBirthdaysRequestId = 0;
+			_contactBirthdaysLastDayRequest = QDate::currentDate().day();
+			auto users = UserIds();
+			auto today = UserIds();
+			_session->data().processUsers(result.data().vusers());
+			for (const auto &tlContact : result.data().vcontacts().v) {
+				const auto peerId = tlContact.data().vcontact_id().v;
+				if (const auto user = _session->data().user(peerId)) {
+					const auto &data = tlContact.data().vbirthday().data();
+					user->setBirthday(Data::Birthday(
+						data.vday().v,
+						data.vmonth().v,
+						data.vyear().value_or_empty()));
+					if (user->isSelf()
+						|| user->isInaccessible()
+						|| user->isBlocked()) {
+						continue;
+					}
+					if (Data::IsBirthdayToday(user->birthday())) {
+						today.push_back(peerToUser(user->id));
+					}
+					users.push_back(peerToUser(user->id));
+				}
+			}
+			_contactBirthdays = std::move(users);
+			_contactBirthdaysToday = std::move(today);
+			consumer.put_next_copy(_contactBirthdays);
+		}).fail([=](const MTP::Error &error) {
+			_contactBirthdaysRequestId = 0;
+			_contactBirthdaysLastDayRequest = QDate::currentDate().day();
+			_contactBirthdays = {};
+			_contactBirthdaysToday = {};
+			consumer.put_next({});
+		}).send();
+
+		return lifetime;
+	};
+}
+
+std::optional<UserIds> PromoSuggestions::knownContactBirthdays() const {
+	if ((_contactBirthdaysLastDayRequest == -1)
+		|| (_contactBirthdaysLastDayRequest != QDate::currentDate().day())) {
+		return std::nullopt;
+	}
+	return _contactBirthdays;
+}
+
+std::optional<UserIds> PromoSuggestions::knownBirthdaysToday() const {
+	if ((_contactBirthdaysLastDayRequest == -1)
+		|| (_contactBirthdaysLastDayRequest != QDate::currentDate().day())) {
+		return std::nullopt;
+	}
+	return _contactBirthdaysToday;
+}
+
 } // namespace Data