fix: update messageCount/totalMessageSent on message events (#8635)

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

packages/discord.js/src/client/actions/MessageCreate.js

@@ -10,6 +10,11 @@ class MessageCreateAction extends Action {
     if (channel) {
       if (!channel.isTextBased()) return {};
 
+      if (channel.isThread()) {
+        channel.messageCount++;
+        channel.totalMessageSent++;
+      }
+
       const existing = channel.messages.cache.get(data.id);
       if (existing) return { message: existing };
       const message = channel.messages._add(data);

packages/discord.js/src/client/actions/MessageDelete.js

@@ -11,6 +11,8 @@ class MessageDeleteAction extends Action {
     if (channel) {
       if (!channel.isTextBased()) return {};
 
+      if (channel.isThread()) channel.messageCount--;
+
       message = this.getMessage(data, channel);
       if (message) {
         channel.messages.cache.delete(message.id);

packages/discord.js/src/client/actions/MessageDeleteBulk.js

@@ -12,6 +12,8 @@ class MessageDeleteBulkAction extends Action {
     if (channel) {
       if (!channel.isTextBased()) return {};
 
+      if (channel.isThread()) channel.messageCount -= data.ids.length;
+
       const ids = data.ids;
       const messages = new Collection();
       for (const id of ids) {