App\Http\Controllers\InvoiceApiController::prepareData PHP Méthode

    private function prepareData($data, $client)
    {
        $account = Auth::user()->account;
        $account->loadLocalizationSettings($client);
        // set defaults for optional fields
        $fields = ['discount' => 0, 'is_amount_discount' => false, 'terms' => '', 'invoice_footer' => '', 'public_notes' => '', 'po_number' => '', 'invoice_design_id' => $account->invoice_design_id, 'invoice_items' => [], 'custom_value1' => 0, 'custom_value2' => 0, 'custom_taxes1' => false, 'custom_taxes2' => false, 'partial' => 0];
        if (!isset($data['invoice_status_id']) || $data['invoice_status_id'] == 0) {
            $data['invoice_status_id'] = INVOICE_STATUS_DRAFT;
        }
        if (!isset($data['invoice_date'])) {
            $fields['invoice_date_sql'] = date_create()->format('Y-m-d');
        }
        if (!isset($data['due_date'])) {
            $fields['due_date_sql'] = false;
        }
        foreach ($fields as $key => $val) {
            if (!isset($data[$key])) {
                $data[$key] = $val;
            }
        }
        // initialize the line items
        if (isset($data['product_key']) || isset($data['cost']) || isset($data['notes']) || isset($data['qty'])) {
            $data['invoice_items'] = [self::prepareItem($data)];
            // make sure the tax isn't applied twice (for the invoice and the line item)
            unset($data['invoice_items'][0]['tax_name1']);
            unset($data['invoice_items'][0]['tax_rate1']);
            unset($data['invoice_items'][0]['tax_name2']);
            unset($data['invoice_items'][0]['tax_rate2']);
        } else {
            foreach ($data['invoice_items'] as $index => $item) {
                $data['invoice_items'][$index] = self::prepareItem($item);
            }
        }
        return $data;
    }