2 files changed, 66 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 411b71b24..985ed0892 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -774,6 +774,7 @@ set(TDLIB_SOURCE_PART2
   td/telegram/ChatTheme.h
   td/telegram/ClientActor.h
   td/telegram/CommonDialogManager.h
+  td/telegram/CommunityId.h
   td/telegram/CommunityManager.h
   td/telegram/ConfigManager.h
   td/telegram/ConnectionState.h
diff --git a/td/telegram/CommunityId.h b/td/telegram/CommunityId.h
new file mode 100644
index 000000000..3cf2df1a2
--- /dev/null
+++ b/td/telegram/CommunityId.h
@@ -0,0 +1,65 @@
+//
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2026
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+#pragma once
+
+#include "td/utils/common.h"
+#include "td/utils/HashTableUtils.h"
+#include "td/utils/StringBuilder.h"
+
+#include <type_traits>
+
+namespace td {
+
+class CommunityId {
+  int64 id = 0;
+
+ public:
+  CommunityId() = default;
+
+  explicit constexpr CommunityId(int64 community_id) : id(community_id) {
+  }
+  template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
+  CommunityId(T community_id) = delete;
+
+  bool is_valid() const {
+    return id > 0;
+  }
+
+  int64 get() const {
+    return id;
+  }
+
+  bool operator==(const CommunityId &other) const {
+    return id == other.id;
+  }
+
+  bool operator!=(const CommunityId &other) const {
+    return id != other.id;
+  }
+
+  template <class StorerT>
+  void store(StorerT &storer) const {
+    storer.store_long(id);
+  }
+
+  template <class ParserT>
+  void parse(ParserT &parser) {
+    id = parser.fetch_long();
+  }
+};
+
+struct CommunityIdHash {
+  uint32 operator()(CommunityId community_id) const {
+    return Hash<int64>()(community_id.get());
+  }
+};
+
+inline StringBuilder &operator<<(StringBuilder &string_builder, CommunityId community_id) {
+  return string_builder << "community " << community_id.get();
+}
+
+}  // namespace td