7日内限购

app/Api/Controllers/DrugController.php

@@ -6,9 +6,11 @@
 use App\Models\DrugModel;
 use App\Models\PharmacyDrugModel;
 use App\Models\PharmacyModel;
+use App\Models\PrescriptionModel;
 use App\Models\User;
 use App\Services\SmsService;
 use Illuminate\Http\Request;
+use Illuminate\Support\Carbon;
 use Illuminate\Support\Facades\DB;
 
 // 药品控制器
@@ -93,6 +95,24 @@ public function drugLimit(Request $request)
         if ($drug && $drug->limit_buy_7 > 0) {
             $limit_num = $drug->limit_buy_7;
         }
+        $patient_id = $request->input('patient_id');
+        $sevenDaysAgo = Carbon::now()->subDays(7);
+        $prescriptions = PrescriptionModel::where('patient_id', $patient_id)
+            ->where('created_at', '>=', $sevenDaysAgo)
+            ->get();
+
+        $drugCounts = [];
+        foreach ($prescriptions as $prescription) {
+            $drugs = json_decode($prescription->drugs, true); // Parse JSON data
+            foreach ($drugs as $drug) {
+                $drugId = $drug['drug_id'];
+                $drugCounts[$drugId] = ($drugCounts[$drugId] ?? 0) + $drug['num'];
+            }
+        }
+        $purchaseCount = $drugCounts[$drug_id] ?? 0;
+
+        // 计算获取剩余可买的次数
+        $limit_num = $limit_num - $purchaseCount;
 
         return $this->success($limit_num);