fix(slack): Show correct sender name and avatar for Slack replies (#13624)

lib/integrations/slack/slack_message_helper.rb

@@ -27,6 +27,10 @@ module Integrations::Slack::SlackMessageHelper
   end
 
   def create_message
+    resolved_sender, sender_name, sender_avatar_url = resolve_slack_sender
+    slack_sender_attrs = {}
+    slack_sender_attrs[:sender_name] = sender_name if sender_name
+    slack_sender_attrs[:sender_avatar_url] = sender_avatar_url if sender_avatar_url
     @message = conversation.messages.build(
       message_type: :outgoing,
       account_id: conversation.account_id,
@@ -34,7 +38,8 @@ module Integrations::Slack::SlackMessageHelper
       content: Slack::Messages::Formatting.unescape(params[:event][:text] || ''),
       external_source_id_slack: params[:event][:ts],
       private: private_note?,
-      sender: sender
+      sender: resolved_sender,
+      additional_attributes: slack_sender_attrs
     )
     process_attachments(params[:event][:files]) if attachments_present?
     @message.save!
@@ -81,9 +86,22 @@ module Integrations::Slack::SlackMessageHelper
     @conversation ||= Conversation.where(identifier: params[:event][:thread_ts]).first
   end
 
-  def sender
-    user_email = slack_client.users_info(user: params[:event][:user])[:user][:profile][:email]
-    conversation.account.users.from_email(user_email)
+  def resolve_slack_sender
+    return [nil, nil, nil] unless params[:event][:user]
+
+    slack_user = slack_client.users_info(user: params[:event][:user])[:user]
+    chatwoot_user = conversation.account.users.from_email(slack_user[:profile][:email])
+    return [chatwoot_user, nil, nil] if chatwoot_user
+
+    sender_name = slack_user.dig(:profile, :display_name).presence ||
+                  slack_user[:real_name].presence ||
+                  slack_user[:name]
+    sender_avatar_url = slack_user.dig(:profile, :image_192).presence
+    [nil, sender_name, sender_avatar_url]
+  rescue Slack::Web::Api::Errors::MissingScope
+    raise
+  rescue StandardError
+    [nil, nil, nil]
   end
 
   def private_note?