From b594effb847b86fc6b1dae49d7948c46bba35e58 Mon Sep 17 00:00:00 2001
From: George Halkiadakis <gchalkiadakis@sklavenitis.co.gr>
Date: Tue, 25 Apr 2023 16:45:03 +0300
Subject: alfa version; uploaded into test server (coder)

---
 public/app/controllers/cms/Course.php | 86 ++++++++++++++++++++++++++++++-----
 1 file changed, 74 insertions(+), 12 deletions(-)

(limited to 'public/app/controllers/cms/Course.php')

diff --git a/public/app/controllers/cms/Course.php b/public/app/controllers/cms/Course.php
index 7e53d3a..0edc832 100644
--- a/public/app/controllers/cms/Course.php
+++ b/public/app/controllers/cms/Course.php
@@ -21,7 +21,7 @@ class Course {
      * shortcut method for checking access authorization
      * 
      * returns true if user belogns to the admin group
-     * or has the specified permition/privilege
+     * OR has the specified permition/privilege
      * 
      * @param $privilege_id (int)
      * 
@@ -35,7 +35,7 @@ class Course {
     {
         return (
             Auth::in_admin_group()
-            || Auth::has_Permition([ $privilege_id ])
+            || Auth::hasPermition([ $privilege_id ])
         );
     }
 
@@ -99,24 +99,32 @@ class Course {
      * -------------------------------------------------------------------------
      */
 
+    /** course
+     * prepare and render the course view
+     * 
+     * @param $id : course id
+     */
+    public static function course($id)
+    {
+        $id = intval($id);      // course id
 
-     public static function course($id)
-     {
+        // collect all data needed for course view
+        // --- -- -- - - -
         $cache = Cache_service::courses_struct();
         $tree = $cache['tree'];
         $breadcrumbs = $cache['breadcrumbs'];
         $lessons = Course_model::lessons_of_course(intval($id));
-        $id = intval($id);
-
-        // print_r($breadcrumbs); die();
 
         // find parent_ids of current category (to open the menu tree)
+        // ---
         $course_path = [];
         foreach($breadcrumbs[$id]['parents'] as $key => $parent) {
             $course_path[] = intval($parent['id']);
         }
-        $course_path[] = intval($id);
+        $course_path[] = $id;
 
+         // then Render
+        // --- -- -- - - -
         Render::view('templates/course', [
             'id' => $id,
             'title' => $breadcrumbs[ $id ]['rec']['label'],
@@ -125,19 +133,73 @@ class Course {
             'lessons' => $lessons,
             'course_path' => $course_path
         ]);
-     }
+    }
 
 
 
+    /** LESSONS
+     * ------------------------------------------------------------------------
+     */
 
 
+    /** lesson
+     * 
+     * check if user is authorized to view the content;
+     * if so, prepare and render the lesson view
+     * 
+     * @param $id : lesson id
+     */
+    public static function lesson($id)
+    {
+        $id = intval($id);     // lesson id
 
-     /** LESSONS
-      * ------------------------------------------------------------------------
-      */
+        $lesson = Course_model::lesson($id);  // get lesson
+        $course_id = $lesson['course_id'];     // get course id
+        $pri_id = $lesson['privilege_id'];     // privilege needed
 
 
+        if (self::is_admin_or_permited($pri_id)) {
 
+            // collect all data needed for course view
+            // --- -- -- - - -
+            $cache = Cache_service::courses_struct();
+            $tree = $cache['tree'];
+            $breadcrumbs = $cache['breadcrumbs'];
+
+            // find parent_ids of current category (to open the menu tree)
+            // ---
+            $course_path = [];
+            foreach($breadcrumbs[$course_id]['parents'] as $key => $parent) {
+                $course_path[] = intval($parent['id']);
+            }
+            $course_path[] = intval($course_id);
+
+            // then Render
+            // --- -- -- - - -
+            Render::view('templates/lesson', [
+                    // main content
+                'id' => $id,
+                'course_id' => $course_id,
+                'title' => $lesson['title'],
+                'lesson' => $lesson,
+                    // needed for side panel and breadcrunbs
+                'categories' => $tree,
+                'breadcrumbs' => $breadcrumbs,
+                'course_path' => $course_path
+            ]);
+
+        } else {    // user is not authorized
+            Render::view('error/general', [
+                'title' => 'Δεν έχετε πρόσβαση',
+                'message' => 'Θα πρέπει να αγοράσετε το πακέτο πρόσβασης '
+                    . $pri_id
+                    .' για να δείτε το περιεχόμενο!
+                    <br><br>
+                    Αγόρασε τώρα το <button class="btn">πακέτο πρόσβασης '. $pri_id .'</button>'
+            ]);
+        }
+
+    }
 
 
 
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