From 1c17432f70f9a163e2a1e239f8cbe18b14ea9d08 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Thu, 23 Oct 2025 11:58:38 +0400
Subject: [PATCH] Request and store top donors in video streams.

---
 .../calls/group/calls_group_messages.cpp      | 40 +++++++++++++++++++
 .../calls/group/calls_group_messages.h        | 26 ++++++++++++
 2 files changed, 66 insertions(+)

diff --git a/Telegram/SourceFiles/calls/group/calls_group_messages.cpp b/Telegram/SourceFiles/calls/group/calls_group_messages.cpp
index 8d155dc521..10a34f8c26 100644
--- a/Telegram/SourceFiles/calls/group/calls_group_messages.cpp
+++ b/Telegram/SourceFiles/calls/group/calls_group_messages.cpp
@@ -25,6 +25,29 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/ui_utility.h"
 
 namespace Calls::Group {
+namespace {
+
+[[nodiscard]] StarsTop ParseStarsTop(
+		not_null<Data::Session*> owner,
+		const MTPphone_GroupCallStars &stars) {
+	const auto &data = stars.data();
+	const auto &list = data.vtop_donors().v;
+	auto result = StarsTop{ .total = int(data.vtotal_stars().v) };
+	result.topDonors.reserve(list.size());
+	for (const auto &entry : list) {
+		const auto &fields = entry.data();
+		result.topDonors.push_back({
+			.peer = (fields.vpeer_id()
+				? owner->peer(peerFromMTP(*fields.vpeer_id())).get()
+				: nullptr),
+			.stars = int(fields.vstars().v),
+			.my = fields.is_my(),
+		});
+	}
+	return result;
+}
+
+} // namespace
 
 Messages::Messages(not_null<GroupCall*> call, not_null<MTP::Sender*> api)
 : _call(call)
@@ -41,6 +64,23 @@ Messages::Messages(not_null<GroupCall*> call, not_null<MTP::Sender*> api)
 				Unexpected("Not ready call.");
 			}
 		}, _lifetime);
+
+		_call->stateValue() | rpl::filter([=](GroupCall::State state) {
+			return (state == GroupCall::State::Joined);
+		}) | rpl::start_with_next([=] {
+			_api->request(base::take(_starsTopRequestId)).cancel();
+			_starsTopRequestId = _api->request(MTPphone_GetGroupCallStars(
+				_call->inputCall()
+			)).done([=](const MTPphone_GroupCallStars &result) {
+				const auto &data = result.data();
+
+				const auto owner = &_call->peer()->owner();
+				owner->processUsers(data.vusers());
+				owner->processChats(data.vchats());
+
+				_starsTop = ParseStarsTop(owner, result);
+			}).send();
+		}, _lifetime);
 	});
 }
 
diff --git a/Telegram/SourceFiles/calls/group/calls_group_messages.h b/Telegram/SourceFiles/calls/group/calls_group_messages.h
index dd48546c81..15eb7dd441 100644
--- a/Telegram/SourceFiles/calls/group/calls_group_messages.h
+++ b/Telegram/SourceFiles/calls/group/calls_group_messages.h
@@ -39,6 +39,25 @@ struct MessageIdUpdate {
 	MsgId realId = 0;
 };
 
+struct StarsTopDonor {
+	PeerData *peer = nullptr;
+	int stars = 0;
+	bool my = false;
+
+	friend inline bool operator==(
+		const StarsTopDonor &,
+		const StarsTopDonor &) = default;
+};
+
+struct StarsTop {
+	std::vector<StarsTopDonor> topDonors;
+	int total = 0;
+
+	friend inline bool operator==(
+		const StarsTop &,
+		const StarsTop &) = default;
+};
+
 class Messages final : public base::has_weak_ptr {
 public:
 	Messages(not_null<GroupCall*> call, not_null<MTP::Sender*> api);
@@ -53,6 +72,10 @@ public:
 	[[nodiscard]] rpl::producer<std::vector<Message>> listValue() const;
 	[[nodiscard]] rpl::producer<MessageIdUpdate> idUpdates() const;
 
+	[[nodiscard]] rpl::producer<StarsTop> starsTopValue() const {
+		return _starsTop.value();
+	}
+
 private:
 	struct Pending {
 		TextWithTags text;
@@ -91,6 +114,9 @@ private:
 	rpl::event_stream<std::vector<Message>> _changes;
 	rpl::event_stream<MessageIdUpdate> _idUpdates;
 
+	mtpRequestId _starsTopRequestId = 0;
+	rpl::variable<StarsTop> _starsTop;
+
 	TimeId _ttl = 0;
 	bool _changesScheduled = false;