From 2b55037b084032dfd98fd4232c1b1c52b437edca Mon Sep 17 00:00:00 2001
From: Alexander Zinchuk <alx.zinchuk@gmail.com>
Date: Sat, 19 Mar 2022 21:19:35 +0100
Subject: [PATCH] Update members count from full chat info

---
 src/api/gramjs/methods/chats.ts | 5 +++++
 src/global/actions/api/chats.ts | 9 +++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/api/gramjs/methods/chats.ts b/src/api/gramjs/methods/chats.ts
index 546ad1949..4111eb458 100644
--- a/src/api/gramjs/methods/chats.ts
+++ b/src/api/gramjs/methods/chats.ts
@@ -339,6 +339,7 @@ async function getFullChatInfo(chatId: string): Promise<{
   fullInfo: ApiChatFullInfo;
   users?: ApiUser[];
   groupCall?: Partial<ApiGroupCall>;
+  membersCount?: number;
 } | undefined> {
   const result = await invokeRequest(new GramJs.messages.GetFullChat({
     chatId: buildInputEntity(chatId) as BigInt.BigInteger,
@@ -391,6 +392,7 @@ async function getFullChatInfo(chatId: string): Promise<{
       version: 0,
       participants: {},
     } : undefined,
+    membersCount: members?.length,
   };
 }
 
@@ -402,6 +404,7 @@ async function getFullChannelInfo(
     fullInfo: ApiChatFullInfo;
     users?: ApiUser[];
     groupCall?: Partial<ApiGroupCall>;
+    membersCount?: number;
   } | undefined> {
   const result = await invokeRequest(new GramJs.channels.GetFullChannel({
     channel: buildInputEntity(id, accessHash) as GramJs.InputChannel,
@@ -430,6 +433,7 @@ async function getFullChannelInfo(
     requestsPending,
     recentRequesters,
     statsDc,
+    participantsCount,
   } = result.fullChat;
 
   const inviteLink = exportedInvite instanceof GramJs.ChatInviteExported
@@ -498,6 +502,7 @@ async function getFullChannelInfo(
       participantsCount: 0,
       connectionState: 'disconnected',
     } : undefined,
+    membersCount: participantsCount,
   };
 }
 
diff --git a/src/global/actions/api/chats.ts b/src/global/actions/api/chats.ts
index af26e8d2a..308ee0d81 100644
--- a/src/global/actions/api/chats.ts
+++ b/src/global/actions/api/chats.ts
@@ -1079,7 +1079,9 @@ export async function loadFullChat(chat: ApiChat) {
     return undefined;
   }
 
-  const { users, fullInfo, groupCall } = result;
+  const {
+    users, fullInfo, groupCall, membersCount,
+  } = result;
 
   let global = getGlobal();
   if (users) {
@@ -1097,7 +1099,10 @@ export async function loadFullChat(chat: ApiChat) {
     );
   }
 
-  global = updateChat(global, chat.id, { fullInfo });
+  global = updateChat(global, chat.id, {
+    fullInfo,
+    ...(membersCount && { membersCount }),
+  });
 
   setGlobal(global);