add button buy now on the page about the session

app/Resources/public/css/base.css

@@ -5006,7 +5006,24 @@ div#chat-remote-video video {
 #about-session .panel-tags .panel-body{
     text-align: center;
 }
-/* list courses classic*/
+#about-session .price-text {
+    color: #505763;
+    font-size: 36px;
+    font-weight: 700;
+    line-height: 40px;
+    margin-right: 10px;
+    margin-bottom: 10px;
+    margin-top: 10px;
+}
+#about-session .buy-box .btn-primary {
+    color: #fff;
+    background-color: #ec5252;
+    border: 1px solid transparent;
+    font-size: 15px;
+    line-height: 1.35135;
+    border-radius: 2px;
+}
+    /* list courses classic*/
 .classic-courses .list-teachers{
     font-size: 12px;
 }
@@ -5548,7 +5565,7 @@ div#chat-remote-video video {
 .return-catalog{
     margin-top: 23px;
 }
-.search-session, .search-courses{
+.search-session, .search-courses
     margin-bottom: 15px;
     margin-top: 25px;
 }

main/session/about.php

@@ -227,6 +227,7 @@ $template->assign(
 );
 $template->assign('has_requirements', $hasRequirements);
 $template->assign('sequences', $sessionRequirements);
+$template->assign('is_premiun', $sessionIsPremium);
 $layout = $template->get_template('session/about.tpl');
 $content = $template->fetch($layout);
 $template->assign('header', $session->getName());

main/template/default/session/about.tpl

@@ -1,3 +1,4 @@
+{{ dump(is_premiun) }}
 <div id="about-session">
     <div class="row">
         <div class="col-xs-12">
@@ -234,6 +235,7 @@
                         </div>
                     </div>
                 </div>
+                {% if is_premiun == false %}
                     <div class="panel panel-default panel-subscription">
                         <div class="panel-heading">
                             <h4>{{ 'CourseSubscription'|get_lang }}</h4>
@@ -252,6 +254,21 @@
                             </div>
                         </div>
                     </div>
+                {% else %}
+                <div class="panel panel-default">
+                    <div class="panel-heading">
+                        {{ 'SalePrice'|get_lang }}
+                    </div>
+                    <div class="panel-body">
+                        <div class="price-text">
+                            {{ is_premiun.iso_code }} {{ is_premiun.price }}
+                        </div>
+                        <div class="buy-box">
+                            <a href="{{ _p.web }}plugin/buycourses/src/process.php?i={{ is_premiun.product_id }}&t={{ is_premiun.product_type }}" class="btn btn-lg btn-primary btn-block">{{ 'BuyNow'|get_lang }}</a>
+                        </div>
+                    </div>
+                </div>
+                {% endif %}
             </div>
         </div>
     {% endfor %}