Added: Create new refuel record

app/models/Refuel.php

@@ -1,5 +1,37 @@
 <?php
 
 class Refuel {
+    private $db;
 
+    public function __construct() {
+        $this->db = Database::getInstance()->getConnection();
+    }
+
+    public function create($data) {
+        try{
+            $stmt = $this->db->prepare("
+                INSERT INTO refueling_records (user_id, vehicle_id, fuel_type, note, liters, price_per_liter, total_price, created_at)
+                VALUES (?, ?, ?, ?, ?, ?, ?, NOW())
+            ");
+
+            $stmt->bind_param(
+                "iissddd",
+                $data['user_id'],
+                $data['vehicle_id'],
+                $data['fuel_type'],
+                $data['note'],
+                $data['liters'],
+                $data['price_per_liter'],
+                $data['total_price'],
+            );
+
+            if ($stmt->execute()) {
+                return true;
+            } else {
+                return "Error: " . $stmt->error;
+            }
+        } catch(mysqli_sql_exception $e) {
+            return $e->getMessage();
+        }
+    }
 }