Add DialogListId.cpp.

1 files changed, 76 insertions, 0 deletions

diff --git a/td/telegram/DialogListId.cpp b/td/telegram/DialogListId.cpp
new file mode 100644
index 000000000..56e0f020e
--- /dev/null
+++ b/td/telegram/DialogListId.cpp
@@ -0,0 +1,76 @@
+//
+// 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)
+//
+#include "td/telegram/DialogListId.h"
+
+namespace td {
+
+DialogListId::DialogListId(int64 dialog_list_id) : id(dialog_list_id) {
+  if (is_folder() && get_folder_id() != FolderId::archive()) {
+    id = FolderId::main().get();
+  } else if (is_filter()) {
+    CHECK(get_filter_id().is_valid());
+  }
+}
+
+DialogListId::DialogListId(const td_api::object_ptr<td_api::ChatList> &chat_list) {
+  if (chat_list == nullptr) {
+    CHECK(id == FolderId::main().get());
+    return;
+  }
+  switch (chat_list->get_id()) {
+    case td_api::chatListArchive::ID:
+      id = FolderId::archive().get();
+      break;
+    case td_api::chatListMain::ID:
+      CHECK(id == FolderId::main().get());
+      break;
+    case td_api::chatListFolder::ID: {
+      DialogFilterId filter_id(static_cast<const td_api::chatListFolder *>(chat_list.get())->chat_folder_id_);
+      if (filter_id.is_valid()) {
+        *this = DialogListId(filter_id);
+      }
+      break;
+    }
+    default:
+      UNREACHABLE();
+      break;
+  }
+}
+
+td_api::object_ptr<td_api::ChatList> DialogListId::get_chat_list_object() const {
+  if (is_folder()) {
+    auto folder_id = get_folder_id();
+    if (folder_id == FolderId::archive()) {
+      return td_api::make_object<td_api::chatListArchive>();
+    }
+    return td_api::make_object<td_api::chatListMain>();
+  }
+  if (is_filter()) {
+    return td_api::make_object<td_api::chatListFolder>(get_filter_id().get());
+  }
+  UNREACHABLE();
+  return nullptr;
+}
+
+StringBuilder &operator<<(StringBuilder &string_builder, DialogListId dialog_list_id) {
+  if (dialog_list_id.is_folder()) {
+    auto folder_id = dialog_list_id.get_folder_id();
+    if (folder_id == FolderId::archive()) {
+      return string_builder << "Archive chat list";
+    }
+    if (folder_id == FolderId::main()) {
+      return string_builder << "Main chat list";
+    }
+    return string_builder << "chat list " << folder_id;
+  }
+  if (dialog_list_id.is_filter()) {
+    return string_builder << "chat list " << dialog_list_id.get_filter_id();
+  }
+  return string_builder << "unknown chat list " << dialog_list_id.get();
+}
+
+}  // namespace td