Merge pull request #48 from khalidmaquilang/feature/si-46-max-value-based-on-inventory

Feature | selling quantity is based on the on hand in the inventory

Author: khalidmaquilang

app/Filament/Resources/SaleResource.php

@@ -6,6 +6,7 @@
 use App\Filament\Exports\SaleExporter;
 use App\Filament\Resources\SaleResource\Pages;
 use App\Models\Customer;
+use App\Models\Inventory;
 use App\Models\Product;
 use App\Models\Sale;
 use Awcodes\TableRepeater\Components\TableRepeater;
@@ -96,6 +97,15 @@ function ($component) {
                             ->required(),
                         Forms\Components\TextInput::make('quantity')
                             ->lazy()
+                            ->minValue(1)
+                            ->maxValue(function (Forms\Get $get): float {
+                                $inventory = Inventory::where('product_id', $get('product_id'))->first();
+                                if (empty($inventory)) {
+                                    return 0;
+                                }
+
+                                return $inventory->quantity_on_hand;
+                            })
                             ->afterStateUpdated(function (Forms\Set $set, Forms\Get $get, $state) {
                                 $cost = $get('unit_cost');
                                 if (empty($cost)) {
@@ -310,7 +320,7 @@ public static function updateSubTotal(Forms\Get $get, Forms\Set $set): void
 
         // Calculate subtotal based on the selected products and quantities
         $subtotal = $selectedProducts->reduce(function ($subtotal, $product) {
-            return $subtotal + ($product['unit_cost'] * $product['quantity']);
+            return $subtotal + ((float) $product['unit_cost'] * (float) $product['quantity']);
         }, 0);
 
         // Update the state with the new values