add logic to store and serve local PDF files

Author: HobieCat

classes/template.php

@@ -48,6 +48,11 @@ class template {
      */
     protected $contextid;
 
+    /**
+     * @var \mod_customcert\localfile the local file for the template.
+     */
+    protected $localfile;
+
     /**
      * The constructor.
      *
@@ -57,6 +62,7 @@ public function __construct($template) {
         $this->id = $template->id;
         $this->name = $template->name;
         $this->contextid = $template->contextid;
+        $this->localfile = new localfile($this);
     }
 
     /**
@@ -326,6 +332,13 @@ public function generate_pdf(bool $preview = false, int $userid = null, bool $re
                 $deliveryoption = $customcert->deliveryoption;
             }
 
+            if ($customcert->keeplocalcopy) {
+                $retval = $this->localfile->sendPDF($userid, $deliveryoption, $return);
+                if ($return && !empty($retval)) {
+                    return $retval;
+                }
+            }
+
             // Remove full-stop at the end, if it exists, to avoid "..pdf" being created and being filtered by clean_filename.
             $filename = rtrim(format_string($this->name, true, ['context' => $this->get_context()]), '.');
 
@@ -374,6 +387,10 @@ public function generate_pdf(bool $preview = false, int $userid = null, bool $re
                 }
             }
 
+            if ($customcert->keeplocalcopy) {
+                $this->localfile->savePDF($pdf->Output('', 'S'), $userid);
+            }
+
             if ($return) {
                 return $pdf->Output('', 'S');
             }