Add refund button on invoice show page for each confirmed payment

Users with 'refunds.initiate' permission see a "استرداد" button next to
each confirmed inbound payment. Confirms before executing.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Livewire/Invoices/InvoiceShow.php

@@ -7,7 +7,9 @@
 use App\Domain\Financial\Models\Invoice;
 use App\Domain\Financial\Services\InvoiceService;
 use App\Domain\Financial\Services\PaymentService;
+use App\Domain\Financial\Services\RefundService;
 use App\Domain\Shared\Exceptions\DomainException;
+use Illuminate\Support\Facades\DB;
 use Livewire\Attributes\Computed;
 use Livewire\Attributes\Layout;
 use Livewire\Attributes\Title;
@@ -164,6 +166,32 @@ public function canRecordPayment(): bool
             && !in_array($this->invoice->status, [InvoiceStatus::Cancelled, InvoiceStatus::Refunded]);
     }
 
+    #[Computed]
+    public function canRefund(): bool
+    {
+        return $this->invoice->paid_amount > 0
+            && !in_array($this->invoice->status, [InvoiceStatus::Cancelled, InvoiceStatus::Refunded]);
+    }
+
+    public function refundPayment(string $paymentUuid, RefundService $service): void
+    {
+        $this->authorize('refunds.initiate');
+
+        try {
+            DB::transaction(function () use ($paymentUuid, $service) {
+                $service->processRefunds([$paymentUuid], 'استرداد من صفحة الفاتورة', auth()->user());
+            });
+
+            $this->invoice->refresh()->load(['items', 'payments', 'billable', 'creator']);
+            $this->paymentAmount = max(0, $this->invoice->due_amount) / 100;
+            session()->flash('success', __('تم استرداد الدفعة بنجاح'));
+        } catch (DomainException $e) {
+            session()->flash('error', $e->getMessage());
+        } catch (\Exception $e) {
+            session()->flash('error', __('حدث خطأ أثناء الاسترداد'));
+        }
+    }
+
     public function render()
     {
         return view('livewire.invoices.invoice-show', [

resources/views/livewire/invoices/invoice-show.blade.php

@@ -230,6 +230,20 @@ class="text-xs border border-amber-300 rounded-md px-2 py-1 focus:ring-2 focus:r
                             <td class="px-4 py-3 text-center">
                                 <div class="flex items-center justify-center gap-2">
                                     <x-ui.print-receipt-button :route="route('receipts.payment.print', $payment->uuid)" size="sm" />
+                                    @if($pStatusValue === 'confirmed' && $payment->direction === 'inbound')
+                                        @can('refunds.initiate')
+                                        <button type="button"
+                                                wire:click="refundPayment('{{ $payment->uuid }}')"
+                                                wire:confirm="{{ __('هل أنت متأكد من استرداد هذه الدفعة؟ لا يمكن التراجع عن هذا الإجراء.') }}"
+                                                wire:loading.attr="disabled"
+                                                wire:target="refundPayment('{{ $payment->uuid }}')"
+                                                title="{{ __('استرداد') }}"
+                                                class="text-xs px-2 py-1 bg-purple-50 text-purple-600 border border-purple-200 rounded hover:bg-purple-100 transition-colors disabled:opacity-50">
+                                            <span wire:loading.remove wire:target="refundPayment('{{ $payment->uuid }}')">{{ __('استرداد') }}</span>
+                                            <span wire:loading wire:target="refundPayment('{{ $payment->uuid }}')">...</span>
+                                        </button>
+                                        @endcan
+                                    @endif
                                     @if(auth()->user()?->is_super_admin)
                                         @if($isEditing)
                                             <button type="button" wire:click="savePaymentMethod"