1 files changed, 96 insertions, 0 deletions
diff --git a/includes/giglogadmin-export-ical-handler.php b/includes/giglogadmin-export-ical-handler.php
new file mode 100644
index 0000000..94309fc
--- /dev/null
+++ b/includes/giglogadmin-export-ical-handler.php
@@ -0,0 +1,96 @@
+<?php
+/**
+ * Class to handle ICAL export of concert data.
+ *
+ * @package giglogadmin
+ *
+ * SPDX-FileCopyrightText: 2022 Andrea Chirulescu <andrea.chirulescu@gmail.com>
+ * SPDX-FileCopyrightText: 2022 Harald Eilertsen <haraldei@anduin.net>
+ *
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+use Kigkonsult\Icalcreator\Vcalendar;
+
+if ( ! function_exists( 'giglogadmin_export_ical_handler' ) ) {
+    /**
+     * Function to handle ICAL export of concert data.
+     */
+    function giglogadmin_export_ical_handler() {
+        if ( ! isset( $_GET['evid'] ) || ! is_numeric( $_GET['evid'] ) ) {
+            wp_die( 'Invalid request, invalid or missing event id.' );
+        }
+
+        $evid = intval( $_GET['evid'] );
+
+        $concert = GiglogAdmin_Concert::get( $evid );
+        if ( ! $concert ) {
+            wp_die( 'Invalid request, unknown event id.' );
+        }
+
+        $cfullname = $concert->cname() . ' live at ' . $concert->venue()->name() . ', ' . $concert->venue()->city();
+        $cshortname = substr( $cfullname, 0, 20 );
+        $fdate = strtotime( $concert->cdate() );
+        $newformat = date( 'Ymd', $fdate );
+
+        $filename = sanitize_file_name(
+            "Concert-{$concert->venue()->name()}-{$newformat}-"
+            . substr( $concert->cname(), 0, 30 )
+        );
+
+        // create a new calendar
+        $vcalendar = Vcalendar::factory( array( Vcalendar::UNIQUE_ID => 'kigkonsult.se' ) )
+            // with calendaring info
+            ->setMethod( Vcalendar::PUBLISH )
+            ->setXprop(
+                Vcalendar::X_WR_CALNAME,
+                'Calendar Sample'
+            )
+            ->setXprop(
+                Vcalendar::X_WR_CALDESC,
+                'Concert ' . $cfullname . ''
+            )
+            ->setXprop(
+                Vcalendar::X_WR_RELCALID,
+                '3E26604A-50F4-4449-8B3E-E4F4932D05B5'
+            )
+            ->setXprop(
+                Vcalendar::X_WR_TIMEZONE,
+                'Europe/Oslo'
+            );
+
+        // create a new event
+        $event1 = $vcalendar->newVevent()
+                            ->setTransp( Vcalendar::OPAQUE )
+                            ->setClass( Vcalendar::P_BLIC )
+                            ->setSequence( 1 )
+                        // describe the event
+                            ->setSummary( '' . $cfullname . '' )
+                            ->setDescription( '' . $cfullname . '' )
+                            ->setComment( '' . $cfullname . '' )
+                        // place the event
+                            ->setLocation( '' . $concert->venue()->name() . ', ' . $concert->venue()->city() . '' )
+                        // set the time
+                            ->setDtstart(
+                                new DateTime(
+                                    $newformat . 'T190000',
+                                    new DateTimezone( 'Europe/Oslo' )
+                                )
+                            )
+                            ->setDuration( 'PT4H' );
+        $output =
+            // apply appropriate Vtimezone with Standard/DayLight components
+            $vcalendar->vtimezonePopulate()
+            // and create the (string) calendar
+                      ->createCalendar();
+
+        header( 'Content-Type: text/calendar' );
+        header( 'content-disposition: attachment;filename=' . $filename . '.ics' );
+        echo $output;
+        die();
+    }
+
+    add_action( 'wp_ajax_nopriv_giglog_export_ical', 'giglogadmin_export_ical_handler' );
+    add_action( 'wp_ajax_giglog_export_ical', 'giglogadmin_export_ical_handler' );
+}
+