add

app/api/controller/InvoiceController.php

@@ -0,0 +1,86 @@
+<?php
+namespace app\api\controller;
+
+use support\Request;
+use app\common\model\Order;
+use app\common\model\Invoice;
+use app\common\service\OrderFlowService;
+
+class InvoiceController
+{
+    public function apply(Request $request)
+    {
+        $userId = $request->user->id;
+        $orderId = (int)$request->post('order_id');
+        $type = trim((string)$request->post('type', 'company'));
+        $title = trim((string)$request->post('title', ''));
+        $taxNo = trim((string)$request->post('tax_no', ''));
+        $email = trim((string)$request->post('email', ''));
+
+        if (!$orderId || !$title || !$email) {
+            return jsonResponse(null, '开票信息不完整', 400);
+        }
+
+        if ($type === 'company' && !$taxNo) {
+            return jsonResponse(null, '企业发票需填写税号', 400);
+        }
+
+        $order = Order::where('id', $orderId)->where('user_id', $userId)->first();
+        if (!$order) {
+            return jsonResponse(null, '订单不存在', 404);
+        }
+
+        if ($order->status === 'wait_pay') {
+            return jsonResponse(null, '未支付订单不能开票', 400);
+        }
+
+        $invoice = Invoice::where('order_id', $orderId)->first();
+        if ($invoice) {
+            return jsonResponse(null, '该订单已申请开票', 400);
+        }
+
+        $invoice = Invoice::create([
+            'order_id' => $orderId,
+            'user_id' => $userId,
+            'type' => $type,
+            'title' => $title,
+            'tax_no' => $taxNo,
+            'email' => $email,
+            'amount' => $order->total_price,
+            'status' => 'pending'
+        ]);
+
+        OrderFlowService::addLog($orderId, 'invoice_apply', '已提交开票申请', '开票金额: ¥' . $invoice->amount, 'user', $userId);
+
+        return jsonResponse(['id' => $invoice->id], '开票申请已提交');
+    }
+
+    public function detail(Request $request)
+    {
+        $userId = $request->user->id;
+        $orderId = (int)$request->get('order_id');
+
+        if (!$orderId) {
+            return jsonResponse(null, '参数错误', 400);
+        }
+
+        $invoice = Invoice::where('order_id', $orderId)->where('user_id', $userId)->first();
+        
+        if (!$invoice) {
+            return jsonResponse(null, '未找到开票记录', 404);
+        }
+
+        return jsonResponse([
+            'id' => $invoice->id,
+            'order_id' => $invoice->order_id,
+            'type' => $invoice->type,
+            'title' => $invoice->title,
+            'tax_no' => $invoice->tax_no,
+            'email' => $invoice->email,
+            'amount' => $invoice->amount,
+            'status' => $invoice->status,
+            'file_url' => $invoice->file_url,
+            'created_at' => $invoice->created_at->format('Y-m-d H:i:s')
+        ]);
+    }
+}

app/api/controller/OrderController.php

@@ -72,6 +72,7 @@ class OrderController
             'is_fast' => (bool)$order->is_fast,
             'express_company' => $order->express_company,
             'express_no' => $order->express_no,
+            'express_modify_count' => (int)$order->express_modify_count,
             'timeline' => $timeline
         ]);
     }
@@ -123,8 +124,9 @@ class OrderController
         }
 
         try {
+            $isModify = ($order->status === 'wait_receive');
             OrderFlowService::userShip($order, $expressCompany, $expressNo);
-            return jsonResponse(null, '发货信息已提交');
+            return jsonResponse(null, $isModify ? '物流信息修改成功' : '发货信息已提交');
         } catch (\Exception $e) {
             return jsonResponse(null, $e->getMessage(), 400);
         }

app/common/model/Invoice.php

@@ -0,0 +1,10 @@
+<?php
+namespace app\common\model;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Invoice extends Model
+{
+    protected $table = 'invoices';
+    protected $guarded = [];
+}

app/common/service/OrderFlowService.php

@@ -58,16 +58,28 @@ class OrderFlowService
      */
     public static function userShip(Order $order, string $expressCompany, string $expressNo)
     {
-        if ($order->status !== 'shipping') {
-            throw new Exception("当前状态不允许发货");
+        if ($order->status !== 'shipping' && $order->status !== 'wait_receive') {
+            throw new Exception("当前状态不允许修改发货信息");
+        }
+
+        if ($order->status === 'wait_receive') {
+            if ($order->express_modify_count >= 1) {
+                throw new Exception("运单号仅允许修改1次");
+            }
+            $order->express_modify_count += 1;
+            $actionType = 'user_ship_modify';
+            $title = '修改物流信息';
+        } else {
+            $order->status = 'wait_receive'; // 等待平台收件
+            $actionType = 'user_ship';
+            $title = '物品已寄出';
         }
         
         $order->express_company = $expressCompany;
         $order->express_no = $expressNo;
-        $order->status = 'wait_receive'; // 等待平台收件（可复用为在途）
         $order->save();
         
-        self::addLog($order->id, 'user_ship', '物品已寄出', "物流公司: {$expressCompany}, 单号: {$expressNo}", 'user', $order->user_id);
+        self::addLog($order->id, $actionType, $title, "物流公司: {$expressCompany}, 单号: {$expressNo}", 'user', $order->user_id);
         
         return $order;
     }