@@ -0,0 +1,82 @@
+<?php
+
+namespace app\ticket\logic;
+
+use app\common\model\UserTokenLog;
+use app\common\model\Systems;
+use app\common\model\User;
+use app\common\model\UserSn;
+use app\common\utils\Jwt;
+use app\ticket\model\Attachment;
+use app\ticket\model\Ticket;
+use support\Redis;
+use support\exception\BusinessException;
+use support\Log;
+
+class AttachmentLogic
+{
+    public function adds(array $data,int $ticket_id,int $user_id)
+    {
+        try {
+            foreach ($data as $k=>$v){
+                $v['ticket_id'] = $ticket_id;
+                $v['user_id'] = $user_id;
+                $res = Attachment::create($v);
+            }
+            return $res;
+        } catch (\Throwable $e) {
+            Log::error('工单创建失败', [
+                'data' => $data,
+                'error' => $e->getMessage()
+            ]);
+            throw new BusinessException('工单创建失败，请稍后重试', 500);
+        }
+    }
+
+    public function edit(array $data,int $ticket_id,int $user_id)
+    {
+        try {
+            $attachmentsId = [];
+            foreach ($data as $k=>$v){
+                $v['ticket_id'] = $ticket_id;
+                $v['user_id'] = $user_id;
+                if(!empty($v['id'])){ //修改附件
+                    $attachmentId = $v['id'];
+                    $attachmentsId[] = $attachmentId;
+//                    $v_res = Attachment::update($attachmentId, $v);
+                    $v_res = Attachment::updateOrCreate(['id' => $v['id']],$v);
+                    if (!$v_res) {
+                        throw new BusinessException('附件保存失败');
+                    }
+                } else { //新增附件
+                    unset($v['id']);
+                    $v_res = Attachment::create($v);
+                    if (!$v_res) {
+                        throw new BusinessException('附件创建失败');
+                    }
+                    $vId = $v_res->id;
+                    $attachmentsId[] = $vId;
+                }
+            }
+
+            //删除本次没有出现的附件
+            $res = Attachment::whereNotIn('id', $attachmentsId)->where('ticket_id',$ticket_id)->delete();
+            return $res;
+        } catch (\Throwable $e) {
+            Log::error('工单编辑（附件）失败', [
+                'data' => $data,
+                'error' => $e->getMessage()
+            ]);
+            throw new BusinessException('工单编辑失败，请稍后重试', 500);
+        }
+    }
+
+    public static function generateSimpleTicketNo(): string
+    {
+        $date = date('Ymd'); // 日期
+        $prefix = 'GD'; // 前缀
+        $random = strtoupper(substr(md5(uniqid()), 0, 5)); // 5位随机字母数字
+
+        return $prefix . $date . '-' . $random; // 如 GD20240702-AB3X9Z
+    }
+}