Use credits for payments in client portal

app/Http/Controllers/ClientPortal/PaymentController.php

@@ -155,27 +155,16 @@ class PaymentController extends Controller
             });
         }
 
-        //$payment_methods = auth()->user()->client->getPaymentMethods(array_sum(array_column($payable_invoices, 'amount_with_fee')));
-
         $payment_method_id = request()->input('payment_method_id');
 
         $invoice_totals = array_sum(array_column($payable_invoices, 'amount'));
 
         $first_invoice = $invoices->first();
 
+        $credit_totals = $first_invoice->client->service()->getCreditBalance();
+
         $starting_invoice_amount = $first_invoice->amount;
 
-        // $fee_totals = round($gateway->calcGatewayFee($invoice_totals, true), $first_invoice->client->currency()->precision);
-
-        // if (!$first_invoice->uses_inclusive_taxes) {
-        //     $fee_tax = 0;
-        //     $fee_tax += round(($first_invoice->tax_rate1 / 100) * $fee_totals, $first_invoice->client->currency()->precision);
-        //     $fee_tax += round(($first_invoice->tax_rate2 / 100) * $fee_totals, $first_invoice->client->currency()->precision);
-        //     $fee_tax += round(($first_invoice->tax_rate3 / 100) * $fee_totals, $first_invoice->client->currency()->precision);
-
-        //     $fee_totals += $fee_tax;
-        // }
-
         $first_invoice->service()->addGatewayFee($gateway, $payment_method_id, $invoice_totals)->save();
 
         /**
@@ -194,9 +183,10 @@ class PaymentController extends Controller
         $payment_hash->save();
 
         $totals = [
+            'credit_totals' => $credit_totals,
             'invoice_totals' => $invoice_totals,
             'fee_total' => $fee_totals,
-            'amount_with_fee' => $invoice_totals + $fee_totals,
+            'amount_with_fee' => max(0, (($invoice_totals + $fee_totals) - $credit_totals)),
         ];
 
         $data = [

app/Services/Client/ClientService.php

@@ -12,6 +12,7 @@
 namespace App\Services\Client;
 
 use App\Models\Client;
+use App\Utils\Number;
 
 class ClientService
 {
@@ -43,6 +44,16 @@ class ClientService
         return $this;
     }
 
+    public function getCreditBalance() :float
+    {
+        $credits = $this->client->credits
+                      ->where('is_deleted', false)
+                      ->where('balance', '>', 0)
+                      ->sortBy('created_at');
+
+        return Number::roundValue($credits->sum('balance'), $this->client->currency()->precision);
+    }
+
     public function save() :Client
     {
         $this->client->save();

resources/views/portal/default/gateways/pay_now.blade.php

@@ -38,7 +38,12 @@
                                 <li class="list-group-item d-flex list-group-item-action justify-content-between align-items-center"><strong>{{ ctrans('texts.total')}}</strong>
                                     <h3><span class="badge badge-primary badge-pill"><strong>{{ $amount }}</strong></span></h3>
                                 </li>
-                                @if($fee)
+                                @if($credit_totals > 0)
+                                <li class="list-group-item d-flex list-group-item-action justify-content-between align-items-center"><strong>{{ ctrans('texts.credit_amount')}}</strong>
+                                    <h3><span class="badge badge-primary badge-pill"><strong>{{ $credit_totals }}</strong></span></h3>
+                                </li>
+                                @endifs
+                                @if($fee > 0)
                                 <li class="list-group-item d-flex list-group-item-action justify-content-between align-items-center"><strong>{{ ctrans('texts.gateway_fee')}}</strong>
                                     <h3><span class="badge badge-primary badge-pill"><strong>{{ $fee }}</strong></span></h3>
                                 </li>

resources/views/portal/ninja2020/gateways/stripe/credit_card.blade.php

@@ -39,21 +39,33 @@
                                 <dd class="mt-1 text-sm leading-5 text-gray-900 sm:mt-0 sm:col-span-2">
                                     {{ App\Utils\Number::formatMoney($total['invoice_totals'], $client) }}
                                 </dd>
+                                @if($total['fee_total'] > 0)
                                 <dt class="text-sm leading-5 font-medium text-gray-500">
                                     {{ ctrans('texts.gateway_fees') }}
                                 </dt>
                                 <dd class="mt-1 text-sm leading-5 text-gray-900 sm:mt-0 sm:col-span-2">
                                     {{ App\Utils\Number::formatMoney($total['fee_total'], $client) }}
                                 </dd>
+                                @endif
+                                @if($total['credit_totals'] > 0)
                                 <dt class="text-sm leading-5 font-medium text-gray-500">
-                                    {{ ctrans('texts.total') }}
+                                    {{ ctrans('texts.credit_amount') }}
+                                </dt>
+                                <dd class="mt-1 text-sm leading-5 text-gray-900 sm:mt-0 sm:col-span-2">
+                                    {{ App\Utils\Number::formatMoney($total['credit_totals'], $client) }}
+                                </dd>                                
+                                @endif
+                                <dt class="text-sm leading-5 font-medium text-gray-500">
+                                    {{ ctrans('texts.amount_due') }}
                                 </dt>
                                 <dd class="mt-1 text-sm leading-5 text-gray-900 sm:mt-0 sm:col-span-2">
                                     {{ App\Utils\Number::formatMoney($total['amount_with_fee'], $client) }}
                                 </dd>
                             </div>
-
+                            @if((int)$total['amount_with_fee'] == 0)
-                            @if($token)
+                                <!-- finalize with credits only -->
+                                <button class="button button-primary bg-primary inline-flex items-center">Pay with credit</button>
+                            @elseif($token)
                                 <div class="bg-gray-50 px-4 py-5 sm:grid sm:grid-cols-3 sm:gap-4 sm:px-6 flex items-center">
                                     <dt class="text-sm leading-5 font-medium text-gray-500 mr-4">
                                         {{ ctrans('texts.credit_card') }}