From e24f68a4ff1a7d8f4374ff71ad7bc317e8babdfb Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Fri, 13 Oct 2023 13:39:14 +0300
Subject: [PATCH] Add "giveaway_additional_chat_count_max" option.

---
 td/generate/scheme/td_api.tl       | 2 +-
 td/telegram/ConfigManager.cpp      | 5 +++++
 td/telegram/ConfigManager.h        | 2 +-
 td/telegram/GiveawayParameters.cpp | 4 ++++
 td/telegram/OptionManager.cpp      | 3 +++
 5 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/td/generate/scheme/td_api.tl b/td/generate/scheme/td_api.tl
index 2392982ff..0f30697a4 100644
--- a/td/generate/scheme/td_api.tl
+++ b/td/generate/scheme/td_api.tl
@@ -2300,7 +2300,7 @@ messageExtendedMediaUnsupported caption:formattedText = MessageExtendedMedia;
 
 //@description Describes parameters of a Telegram Premium giveaway
 //@boosted_chat_id Identifier of the channel chat, which will be automatically boosted by the winners of the giveaway for duration of the Premium subscription
-//@additional_chat_ids Identifiers of other channel chats that must be subscribed by the users to be eligible for the giveaway
+//@additional_chat_ids Identifiers of other channel chats that must be subscribed by the users to be eligible for the giveaway. There can be up to getOption("giveaway_additional_chat_count_max") additional chats
 //@winners_selection_date Point in time (Unix timestamp) when the giveaway is expected to be performed; must be from 1 minute to 365 days in the future in scheduled giveaways
 //@only_new_subscribers True, if only new subscribers of the chats will be eligible for the giveaway
 //@country_codes The list of two-letter ISO 3166-1 alpha-2 codes of countries, only users from which will be eligible for the giveaway
diff --git a/td/telegram/ConfigManager.cpp b/td/telegram/ConfigManager.cpp
index 3027f944b..19bce5a98 100644
--- a/td/telegram/ConfigManager.cpp
+++ b/td/telegram/ConfigManager.cpp
@@ -1917,6 +1917,11 @@ void ConfigManager::process_app_config(tl_object_ptr<telegram_api::JSONValue> &c
                                 get_json_value_int(std::move(key_value->value_), key));
         continue;
       }
+      if (key == "giveaway_add_peers_max") {
+        G()->set_option_integer("giveaway_additional_chat_count_max",
+                                get_json_value_int(std::move(key_value->value_), key));
+        continue;
+      }
 
       new_values.push_back(std::move(key_value));
     }
diff --git a/td/telegram/ConfigManager.h b/td/telegram/ConfigManager.h
index 4848703c8..2598e0edb 100644
--- a/td/telegram/ConfigManager.h
+++ b/td/telegram/ConfigManager.h
@@ -102,7 +102,7 @@ class ConfigManager final : public NetQueryCallback {
 
  private:
   struct AppConfig {
-    static constexpr int32 CURRENT_VERSION = 14;
+    static constexpr int32 CURRENT_VERSION = 15;
     int32 version_ = 0;
     int32 hash_ = 0;
     telegram_api::object_ptr<telegram_api::JSONValue> config_;
diff --git a/td/telegram/GiveawayParameters.cpp b/td/telegram/GiveawayParameters.cpp
index 9269e4e78..1bf40833e 100644
--- a/td/telegram/GiveawayParameters.cpp
+++ b/td/telegram/GiveawayParameters.cpp
@@ -10,6 +10,7 @@
 #include "td/telegram/Dependencies.h"
 #include "td/telegram/DialogId.h"
 #include "td/telegram/MessagesManager.h"
+#include "td/telegram/OptionManager.h"
 #include "td/telegram/Td.h"
 
 #include "td/utils/Random.h"
@@ -44,6 +45,9 @@ Result<GiveawayParameters> GiveawayParameters::get_giveaway_parameters(
     TRY_RESULT(channel_id, get_boosted_channel_id(td, DialogId(additional_chat_id)));
     additional_channel_ids.push_back(channel_id);
   }
+  if (additional_channel_ids.size() > td->option_manager_->get_option_integer("giveaway_additional_chat_count_max")) {
+    return Status::Error(400, "Too many additional chats specified");
+  }
   if (parameters->winners_selection_date_ < G()->unix_time()) {
     return Status::Error(400, "Giveaway date is in the past");
   }
diff --git a/td/telegram/OptionManager.cpp b/td/telegram/OptionManager.cpp
index d95a475bb..b19a001e8 100644
--- a/td/telegram/OptionManager.cpp
+++ b/td/telegram/OptionManager.cpp
@@ -128,6 +128,9 @@ OptionManager::OptionManager(Td *td)
   if (!have_option("story_stealth_mode_cooldown_period")) {
     set_option_integer("story_stealth_mode_cooldown_period", 3600);
   }
+  if (!have_option("giveaway_additional_chat_count_max")) {
+    set_option_integer("giveaway_additional_chat_count_max", G()->is_test_dc() ? 3 : 10);
+  }
 
   set_option_empty("archive_and_mute_new_chats_from_unknown_users");
   set_option_empty("chat_filter_count_max");