From c8f982994d07a7118c13b2877d436895f50b12fc Mon Sep 17 00:00:00 2001
From: Richard Steinmetz <richard@steinmetz.cloud>
Date: Wed, 20 Sep 2023 17:54:55 +0200
Subject: [PATCH] fix(dashboard): properly handle recurring events

Signed-off-by: Richard Steinmetz <richard@steinmetz.cloud>
---
 lib/Dashboard/CalendarWidget.php   | 24 +++++++++++++++++++++---
 lib/Dashboard/CalendarWidgetV2.php |  6 ++----
 2 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/lib/Dashboard/CalendarWidget.php b/lib/Dashboard/CalendarWidget.php
index d0b6f3c31a..e5dddaa156 100644
--- a/lib/Dashboard/CalendarWidget.php
+++ b/lib/Dashboard/CalendarWidget.php
@@ -155,10 +155,23 @@ public function getItems(string $userId, ?string $since = null, int $limit = 7):
 		foreach ($calendars as $calendar) {
 			$searchResult = $calendar->search('', [], $options, $limit);
 			foreach ($searchResult as $calendarEvent) {
-				/** @var DateTimeImmutable $startDate */
-				$startDate = $calendarEvent['objects'][0]['DTSTART'][0];
+				// Find first recurrence in the future
+				$recurrence = null;
+				foreach ($calendarEvent['objects'] as $object) {
+					/** @var DateTimeImmutable $startDate */
+					$startDate = $object['DTSTART'][0];
+					if ($startDate->getTimestamp() >= $dateTime->getTimestamp()) {
+						$recurrence = $object;
+						break;
+					}
+				}
+
+				if ($recurrence === null) {
+					continue;
+				}
+
 				$widget = new WidgetItem(
-					$calendarEvent['objects'][0]['SUMMARY'][0] ?? 'New Event',
+					$recurrence['SUMMARY'][0] ?? 'New Event',
 					$this->dateTimeFormatter->formatTimeSpan(DateTime::createFromImmutable($startDate)),
 					$this->urlGenerator->getAbsoluteURL($this->urlGenerator->linkToRoute('calendar.view.index', ['objectId' => $calendarEvent['uid']])),
 					$this->urlGenerator->getAbsoluteURL($this->urlGenerator->linkToRoute('calendar.view.getCalendarDotSvg', ['color' => $calendar->getDisplayColor() ?? '#0082c9'])), // default NC blue fallback
@@ -167,6 +180,11 @@ public function getItems(string $userId, ?string $since = null, int $limit = 7):
 				$widgetItems[] = $widget;
 			}
 		}
+
+		usort($widgetItems, static function (WidgetItem $item) {
+			return $item->getSinceId();
+		});
+
 		return $widgetItems;
 	}
 
diff --git a/lib/Dashboard/CalendarWidgetV2.php b/lib/Dashboard/CalendarWidgetV2.php
index f6e84f8da5..7e1c9f7fb8 100644
--- a/lib/Dashboard/CalendarWidgetV2.php
+++ b/lib/Dashboard/CalendarWidgetV2.php
@@ -43,10 +43,8 @@ public function getItemsV2(string $userId, ?string $since = null, int $limit = 7
 		$halfEmptyContentMessage = '';
 		if (!empty($widgetItems)) {
 			$startOfTomorrow = $this->timeFactory->getDateTime('tomorrow')->getTimestamp();
-			foreach ($widgetItems as $item) {
-				if ((int)$item->getSinceId() >= $startOfTomorrow) {
-					$halfEmptyContentMessage = $this->l10n->t('No more events today');
-				}
+			if ($widgetItems[0]->getSinceId() >= $startOfTomorrow) {
+				$halfEmptyContentMessage = $this->l10n->t('No more events today');
 			}
 		}