添加系统提示消息

app/Constants/TalkMessageType.php

@@ -9,6 +9,7 @@ namespace App\Constants;
  */
 class TalkMessageType
 {
+    const SYSTEM_TEXT_MESSAGE  = 0; //系统文本消息
     const TEXT_MESSAGE         = 1; //文本消息
     const FILE_MESSAGE         = 2; //文件消息
     const FORWARD_MESSAGE      = 3; //会话消息

app/Service/TalkService.php

@@ -81,6 +81,21 @@ class TalkService extends BaseService
         });
 
         $rows = $rowsSqlObj->orderBy('talk_records.id', 'desc')->limit($limit)->get()->toArray();
+
+        if ($record_id === 0 && $talk_type == TalkModeConstant::PRIVATE_CHAT) {
+            if (!di()->get(UserFriendService::class)->isFriend($user_id, $receiver_id, true)) {
+                array_unshift($rows, [
+                    'id'          => ($rows[0]['id'] ?? 0) + 1,
+                    'talk_type'   => TalkModeConstant::PRIVATE_CHAT,
+                    'msg_type'    => TalkMessageType::SYSTEM_TEXT_MESSAGE,
+                    'user_id'     => 0,
+                    'receiver_id' => $user_id,
+                    'content'     => '你与对方已解除好友关系，系统已禁止发送消息！',
+                    'created_at'  => date('Y-m-d H:i:s'),
+                ]);
+            }
+        }
+
         return di()->get(FormatMessageService::class)->handleChatRecords($rows);
     }
 

app/Service/UserFriendService.php

@@ -36,6 +36,7 @@ class UserFriendService
     public function isFriend(int $user_id, int $friend_id, $is_mutual = false)
     {
         $isTrue1 = UsersFriend::where('user_id', $user_id)->where('friend_id', $friend_id)->where('status', 1)->exists();
+
         if ($is_mutual === false) {
             return $isTrue1;
         }