Refresh stock forecast after each sale

modules/erp/lager/service.php

@@ -1,6 +1,8 @@
 <?php
 declare(strict_types=1);
 
+require_once __DIR__ . '/forecast.php';
+
 function get_default_location_ids(PDO $pdo): array
 {
     $row = $pdo->query(
@@ -530,8 +532,10 @@ function allocate_components_for_line(
 
     $allocationCount = 0;
     $virtualAllocationCount = 0;
+    $forecastProductIds = [];
     foreach ($components as $component) {
         $productId = (int) $component['product_id'];
+        $forecastProductIds[$productId] = true;
         $remaining = $lineQty * (float) $component['qty_per_item'];
         $guard = 0;
 
@@ -587,6 +591,10 @@ function allocate_components_for_line(
         }
     }
 
+    foreach (array_keys($forecastProductIds) as $productId) {
+        refresh_lager_stock_lot_forecast_for_product($pdo, (int) $productId);
+    }
+
     return [
         'allocated' => true,
         'allocationCount' => $allocationCount,