From a4ac00acbd7870c19032f65205e723523133486f Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Thu, 15 Aug 2024 10:14:30 +0200
Subject: [PATCH] Allow sending star reactions to discussion roots.

---
 Telegram/SourceFiles/history/history_item.cpp             | 2 +-
 .../SourceFiles/history/view/history_view_list_widget.cpp | 8 ++++++++
 .../SourceFiles/payments/payments_reaction_process.cpp    | 8 ++++++--
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/Telegram/SourceFiles/history/history_item.cpp b/Telegram/SourceFiles/history/history_item.cpp
index cebb425ca..70b38bcf2 100644
--- a/Telegram/SourceFiles/history/history_item.cpp
+++ b/Telegram/SourceFiles/history/history_item.cpp
@@ -2533,7 +2533,7 @@ bool HistoryItem::canReact() const {
 
 void HistoryItem::addPaidReaction(int count, bool anonymous) {
 	Expects(count >= 0);
-	Expects(_history->peer->isBroadcast());
+	Expects(_history->peer->isBroadcast() || isDiscussionPost());
 
 	if (!_reactions) {
 		_reactions = std::make_unique<Data::MessageReactions>(this);
diff --git a/Telegram/SourceFiles/history/view/history_view_list_widget.cpp b/Telegram/SourceFiles/history/view/history_view_list_widget.cpp
index 97aa4e81f..a84464bc3 100644
--- a/Telegram/SourceFiles/history/view/history_view_list_widget.cpp
+++ b/Telegram/SourceFiles/history/view/history_view_list_widget.cpp
@@ -36,6 +36,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "api/api_who_reacted.h"
 #include "api/api_views.h"
 #include "layout/layout_selection.h"
+#include "payments/payments_reaction_process.h"
 #include "window/section_widget.h"
 #include "window/window_adaptive.h"
 #include "window/window_session_controller.h"
@@ -2801,6 +2802,13 @@ void ListWidget::reactionChosen(ChosenReaction reaction) {
 	const auto item = session().data().message(reaction.context);
 	if (!item) {
 		return;
+	} else if (reaction.id.paid()) {
+		Payments::ShowPaidReactionDetails(
+			controller(),
+			item,
+			viewForItem(item),
+			HistoryReactionSource::Selector);
+		return;
 	} else if (_delegate->listShowReactPremiumError(item, reaction.id)) {
 		if (_menu) {
 			_menu->hideMenu();
diff --git a/Telegram/SourceFiles/payments/payments_reaction_process.cpp b/Telegram/SourceFiles/payments/payments_reaction_process.cpp
index 57de72432..d66063b33 100644
--- a/Telegram/SourceFiles/payments/payments_reaction_process.cpp
+++ b/Telegram/SourceFiles/payments/payments_reaction_process.cpp
@@ -11,6 +11,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/send_credits_box.h" // CreditsEmojiSmall.
 #include "core/ui_integration.h" // MarkedTextContext.
 #include "data/components/credits.h"
+#include "data/data_channel.h"
 #include "data/data_message_reactions.h"
 #include "data/data_session.h"
 #include "data/data_user.h"
@@ -120,7 +121,8 @@ void ShowPaidReactionDetails(
 		not_null<HistoryItem*> item,
 		HistoryView::Element *view,
 		HistoryReactionSource source) {
-	Expects(item->history()->peer->isBroadcast());
+	Expects(item->history()->peer->isBroadcast()
+		|| item->isDiscussionPost());
 
 	const auto show = controller->uiShow();
 	const auto itemId = item->fullId();
@@ -229,11 +231,13 @@ void ShowPaidReactionDetails(
 	}
 	ranges::sort(top, ranges::greater(), &Ui::PaidReactionTop::count);
 
+	const auto linked = item->discussionPostOriginalSender();
+	const auto channel = (linked ? linked : item->history()->peer.get());
 	state->selectBox = show->show(Ui::MakePaidReactionBox({
 		.chosen = chosen,
 		.max = max,
 		.top = std::move(top),
-		.channel = item->history()->peer->name(),
+		.channel = channel->name(),
 		.submit = std::move(submitText),
 		.balanceValue = session->credits().balanceValue(),
 		.send = [=](int count, bool anonymous) {