Update texts for tax info placeholders

app/Models/Client.php

@@ -58,7 +58,7 @@ use Illuminate\Contracts\Translation\HasLocalePreference;
  * @property string|null $city
  * @property string|null $state
  * @property string|null $postal_code
- * @property string|null $country_id
+ * @property int|null $country_id
  * @property string|null $custom_value1
  * @property string|null $custom_value2
  * @property string|null $custom_value3

app/Models/Company.php

@@ -58,7 +58,7 @@ use Illuminate\Database\Eloquent\Relations\BelongsTo;
  * @property string|null $portal_domain
  * @property int $enable_modules
  * @property object $custom_fields
- * @property object $settings
+ * @property \App\DataMapper\CompanySettings $settings
  * @property string $slack_webhook_url
  * @property string $google_analytics_key
  * @property int|null $created_at

app/Utils/HtmlEngine.php

@@ -35,16 +35,22 @@ class HtmlEngine
     use MakesHash;
     use DesignCalculator;
     
+    /** @var  \App\Models\Invoice | \App\Models\Credit | \App\Models\RecurringInvoice | \App\Models\Quote $entity **/
     public $entity;
 
+    /** @var  \App\Models\CreditInvitation | CreditInvitation | \App\Models\RecurringInvoiceInvitation | \App\Models\QuoteInvitation $invitation **/
     public $invitation;
 
+    /** @var \App\Models\Client $client */
     public $client;
 
+    /** @var \App\Models\ClientContact $contact */
     public $contact;
 
+    /** @var \App\Models\Company $company */
     public $company;
 
+    /** @var \App\DataMapper\CompanySettings $settings **/
     public $settings;
 
     public $entity_calc;
@@ -53,6 +59,13 @@ class HtmlEngine
 
     private $helpers;
 
+        
+    /**
+     * __construct
+     *
+     * @param  InvoiceInvitation | CreditInvitation | RecurringInvoiceInvitation | QuoteInvitation $invitation
+     * @return void
+     */
     public function __construct($invitation)
     {
         $this->invitation = $invitation;
@@ -150,7 +163,9 @@ class HtmlEngine
         $data['$payment_link'] = ['value' => $this->invitation->getPaymentLink(), 'label' => ctrans('texts.pay_now')];
         $data['$payment_qrcode'] = ['value' => $this->invitation->getPaymentQrCode(), 'label' => ctrans('texts.pay_now')];
         $data['$exchange_rate'] = ['value' => $this->entity->exchange_rate ?: ' ', 'label' => ctrans('texts.exchange_rate')];
-
+        $data['$triangular_tax'] = ['value' => ctrans('texts.triangular_tax'), 'label' => ''];
+        $data['$tax_info'] = ['value' => $this->taxLabel(), 'label' => ''];
+        
         if ($this->entity_string == 'invoice' || $this->entity_string == 'recurring_invoice') {
             $data['$entity'] = ['value' => ctrans('texts.invoice'), 'label' => ctrans('texts.invoice')];
             $data['$number'] = ['value' => $this->entity->number ?: ' ', 'label' => ctrans('texts.invoice_number')];
@@ -676,6 +691,26 @@ class HtmlEngine
 
         return $data;
     }
+    
+    /**
+     * Returns a localized string for tax compliance purposes
+     *
+     * @return string
+     */
+    private function taxLabel(): string
+    {
+        $tax_label = '';
+
+        if (collect($this->entity->line_items)->contains('tax_id', \App\Models\Product::PRODUCT_TYPE_REVERSE_TAX)) {
+            $tax_label .= ctrans('texts.reverse_tax_info') . "\n";
+        }
+
+        if($this->client->country_id !== (int)$this->company->settings->country_id){
+            $tax_label .= ctrans('texts.tax_info') . "\n";
+        }
+
+        return $tax_label;
+    }
 
     private function getBalance()
     {

lang/en/texts.php

@@ -5143,6 +5143,9 @@ $LANG = array(
     'is_tax_exempt' => 'Tax Exempt',
     'drop_files_here' => 'Drop files here',
     'upload_files' => 'Upload Files',
+    'triangular_tax_info' => 'Intra-community triangular transaction',
+    'intracommunity_tax_info' => 'Tax-free intra-community delivery',
+    'reverse_tax_info' => 'Please note that this supply is subject to reverse charge',
 );
 
 return $LANG;