Add option to lock invoices at the end of the month - accrual accounting

app/DataMapper/CompanySettings.php

@@ -29,7 +29,7 @@ class CompanySettings extends BaseSettings
 
     public $besr_id = ''; //@implemented
 
-    public $lock_invoices = 'off'; //off,when_sent,when_paid //@implemented
+    public $lock_invoices = 'off'; //off,when_sent,when_paid,end_of_month //@implemented
 
     public $enable_client_portal_tasks = false; //@ben to implement
 

app/Http/Controllers/InvoiceController.php

@@ -408,7 +408,7 @@ class InvoiceController extends BaseController
         }
 
         if ($invoice->isLocked()) {
-            return response()->json(['message' => ctrans('texts.locked_invoice')], 422);
+            return response()->json(['message' => '', 'errors' => ['number' => ctrans('texts.locked_invoice')]], 422);
         }
 
         $old_invoice = $invoice->line_items;

app/Http/ValidationRules/Invoice/LockedInvoiceRule.php

@@ -16,6 +16,7 @@ use Illuminate\Contracts\Validation\Rule;
 
 /**
  * Class LockedInvoiceRule.
+ * @deprecated
  */
 class LockedInvoiceRule implements Rule
 {
@@ -67,6 +68,13 @@ class LockedInvoiceRule implements Rule
                 }
 
                 return true;
+
+            //if now is greater than the end of month the invoice was dated - do not modify
+            case 'end_of_month':
+                if(\Carbon\Carbon::setTimezone($this->invoice->company->timezone()->name)->parse($this->invoice->date)->endOfMonth()->lte(now()))
+                    return false;
+
+                return true;
             default:
                 return true;
         }

app/Models/Invoice.php

@@ -563,6 +563,8 @@ class Invoice extends BaseModel
                 return $this->status_id == self::STATUS_SENT;
             case 'when_paid':
                 return $this->status_id == self::STATUS_PAID || $this->status_id == self::STATUS_PARTIAL;
+            case 'end_of_month':
+                return \Carbon\Carbon::parse($this->date)->setTimezone($this->company->timezone()->name)->endOfMonth()->lte(now());
             default:
                 return false;
         }

lang/en/texts.php

@@ -5334,6 +5334,7 @@ $lang = array(
     'btcpay_refund_body' => 'A refund intended for you has been issued. To claim it via BTCPay, please click on this link:',
     'currency_mauritanian_ouguiya' => 'Mauritanian Ouguiya',
     'currency_bhutan_ngultrum' => 'Bhutan Ngultrum',
+    'end_of_month' => 'End Of Month'
 );
 
 return $lang;

tests/Unit/DatesTest.php

@@ -31,6 +31,29 @@ class DatesTest extends TestCase
         // $this->makeTestData();
     }
 
+    public function testDateNotGreaterThanMonthsEnd()
+    {
+        $this->travelTo(now()->createFromDate(2024, 6, 20));
+        $date = '2024-05-20';
+        
+        $this->assertTrue(\Carbon\Carbon::parse($date)->endOfMonth()->lte(now()));
+
+        $this->travelBack();
+
+    }
+
+    public function testDatLessThanMonthsEnd()
+    {
+        $this->travelTo(now()->createFromDate(2024, 5, 30));
+        $date = '2024-05-20';
+        
+        $this->assertFalse(\Carbon\Carbon::parse($date)->endOfMonth()->lte(now()));
+
+        $this->travelBack();
+
+    }
+
+    
     public function testLastFinancialYear3()
     {
         $this->travelTo(now()->createFromDate(2020, 6, 30));