Remove maintenance feature

action.php

@@ -82,12 +82,6 @@ class action_plugin_luxtools extends ActionPlugin
             $this,
             "handleCalendarWidgetAjax",
         );
-        $controller->register_hook(
-            "AJAX_CALL_UNKNOWN",
-            "BEFORE",
-            $this,
-            "handleMaintenanceTaskAction",
-        );
         $controller->register_hook(
             "AJAX_CALL_UNKNOWN",
             "BEFORE",
@@ -753,21 +747,8 @@ class action_plugin_luxtools extends ActionPlugin
             );
         }
 
-        // Render maintenance tasks
+        // Render slot2/slot3/slot4 if present
-        if (isset($grouped["maintenance"])) {
+        foreach (["slot2", "slot3", "slot4"] as $slotKey) {
-            $title = (string) $this->getLang("chronological_maintenance_title");
-            if ($title === "") {
-                $title = "Tasks";
-            }
-            $html .= $this->renderMaintenanceSection(
-                $grouped["maintenance"],
-                $title,
-                $dateIso,
-            );
-        }
-
-        // Render slot3/slot4 if present
-        foreach (["slot3", "slot4"] as $slotKey) {
             if (isset($grouped[$slotKey]) && isset($slots[$slotKey])) {
                 $label = $slots[$slotKey]->getLabel();
                 $html .= $this->renderEventSection(
@@ -814,51 +795,6 @@ class action_plugin_luxtools extends ActionPlugin
             "</div>";
     }
 
-    /**
-     * Render a maintenance task section with completion buttons.
-     *
-     * @param CalendarEvent[] $events
-     * @param string $title
-     * @param string $dateIso
-     * @return string
-     */
-    protected function renderMaintenanceSection(
-        array $events,
-        string $title,
-        string $dateIso,
-    ): string {
-        $items = "";
-        $ajaxUrl = defined("DOKU_BASE")
-            ? (string) DOKU_BASE . "lib/exe/ajax.php"
-            : "lib/exe/ajax.php";
-
-        foreach ($events as $event) {
-            $items .= $this->renderMaintenanceListItem($event, $ajaxUrl);
-        }
-        if ($items === "") {
-            return "";
-        }
-
-        $secToken = function_exists("getSecurityToken")
-            ? getSecurityToken()
-            : "";
-
-        return '<div class="luxtools-plugin luxtools-chronological-events luxtools-chronological-maintenance"' .
-            ' data-luxtools-ajax-url="' .
-            hsc($ajaxUrl) .
-            '"' .
-            ' data-luxtools-sectok="' .
-            hsc($secToken) .
-            '">' .
-            "<h2>" .
-            hsc($title) .
-            "</h2>" .
-            "<ul>" .
-            $items .
-            "</ul>" .
-            "</div>";
-    }
-
     /**
      * Render a single event as a list item with popup data attributes.
      *
@@ -921,215 +857,6 @@ class action_plugin_luxtools extends ActionPlugin
             "</span></li>";
     }
 
-    /**
-     * Render a maintenance task as a list item with completion button.
-     *
-     * @param CalendarEvent $event
-     * @param string $ajaxUrl
-     * @return string
-     */
-    protected function renderMaintenanceListItem(
-        CalendarEvent $event,
-        string $ajaxUrl,
-    ): string {
-        $isCompleted = $event->isCompleted();
-        $classes = "luxtools-maintenance-task";
-        if ($isCompleted) {
-            $classes .= " luxtools-task-completed";
-        }
-
-        $summaryHtml = hsc($event->summary);
-
-        // Data attributes for popup and completion
-        $dataAttrs = ' data-luxtools-event="1"';
-        $dataAttrs .= ' data-event-summary="' . hsc($event->summary) . '"';
-        $dataAttrs .= ' data-event-start="' . hsc($event->startIso) . '"';
-        if ($event->endIso !== "") {
-            $dataAttrs .= ' data-event-end="' . hsc($event->endIso) . '"';
-        }
-        if ($event->location !== "") {
-            $dataAttrs .=
-                ' data-event-location="' . hsc($event->location) . '"';
-        }
-        if ($event->description !== "") {
-            $dataAttrs .=
-                ' data-event-description="' . hsc($event->description) . '"';
-        }
-        $dataAttrs .=
-            ' data-event-allday="' . ($event->allDay ? "1" : "0") . '"';
-        $dataAttrs .= ' data-event-slot="maintenance"';
-        $dataAttrs .= ' data-task-uid="' . hsc($event->uid) . '"';
-        $dataAttrs .= ' data-task-date="' . hsc($event->dateIso) . '"';
-        $dataAttrs .=
-            ' data-task-recurrence="' . hsc($event->recurrenceId) . '"';
-        $dataAttrs .= ' data-task-status="' . hsc($event->status) . '"';
-
-        $buttonLabel = $isCompleted
-            ? (string) $this->getLang("maintenance_task_reopen")
-            : (string) $this->getLang("maintenance_task_complete");
-        if ($buttonLabel === "") {
-            $buttonLabel = $isCompleted ? "Reopen" : "Complete";
-        }
-        $buttonAction = $isCompleted ? "reopen" : "complete";
-
-        $buttonHtml =
-            '<button type="button" class="luxtools-task-action" data-action="' .
-            hsc($buttonAction) .
-            '">' .
-            hsc($buttonLabel) .
-            "</button>";
-
-        $timeHtml = "";
-        if (!$event->allDay && $event->time !== "") {
-            $timeHtml =
-                '<span class="luxtools-event-time" data-luxtools-start="' .
-                hsc($event->startIso) .
-                '">' .
-                hsc($event->time) .
-                "</span> - ";
-        }
-
-        return '<li class="' .
-            hsc($classes) .
-            '"' .
-            $dataAttrs .
-            ">" .
-            $timeHtml .
-            '<span class="luxtools-event-summary">' .
-            $summaryHtml .
-            "</span> " .
-            $buttonHtml .
-            "</li>";
-    }
-
-    /**
-     * Handle AJAX requests for marking maintenance tasks complete/reopen.
-     *
-     * @param Event $event
-     * @param mixed $param
-     * @return void
-     */
-    public function handleMaintenanceTaskAction(Event $event, $param)
-    {
-        if ($event->data !== "luxtools_maintenance_task") {
-            return;
-        }
-
-        $event->preventDefault();
-        $event->stopPropagation();
-
-        header("Content-Type: application/json; charset=utf-8");
-        $this->sendNoStoreHeaders();
-
-        global $INPUT;
-
-        // Verify security token
-        if (!checkSecurityToken()) {
-            http_status(403);
-            echo json_encode([
-                "ok" => false,
-                "error" => "Security token mismatch",
-            ]);
-            return;
-        }
-
-        $action = $INPUT->str("action"); // 'complete' or 'reopen'
-        $uid = $INPUT->str("uid");
-        $dateIso = $INPUT->str("date");
-        $recurrence = $INPUT->str("recurrence");
-
-        if (!in_array($action, ["complete", "reopen"], true)) {
-            http_status(400);
-            echo json_encode(["ok" => false, "error" => "Invalid action"]);
-            return;
-        }
-        if ($uid === "" || !ChronoID::isIsoDate($dateIso)) {
-            http_status(400);
-            echo json_encode(["ok" => false, "error" => "Missing uid or date"]);
-            return;
-        }
-
-        $slots = CalendarSlot::loadAll($this);
-        $maintenanceSlot = $slots["maintenance"] ?? null;
-        if ($maintenanceSlot === null || !$maintenanceSlot->isEnabled()) {
-            http_status(400);
-            echo json_encode([
-                "ok" => false,
-                "error" => "Maintenance calendar not configured",
-            ]);
-            return;
-        }
-
-        $newStatus = $action === "complete" ? "COMPLETED" : "TODO";
-
-        // Update local ICS file
-        $localOk = false;
-        $file = $maintenanceSlot->getFile();
-        if ($file !== "" && is_file($file)) {
-            $localOk = IcsWriter::updateEventStatus(
-                $file,
-                $uid,
-                $recurrence,
-                $newStatus,
-                $dateIso,
-            );
-        }
-
-        if (!$localOk) {
-            http_status(500);
-            echo json_encode([
-                "ok" => false,
-                "error" => $this->getLang("maintenance_complete_error"),
-            ]);
-            return;
-        }
-
-        // Clear caches so next render picks up changes
-        CalendarService::clearCache();
-
-        // Remote CalDAV write-back if configured
-        $remoteOk = true;
-        $remoteError = "";
-        if ($maintenanceSlot->hasRemoteSource()) {
-            try {
-                $caldavResult = CalDavClient::updateEventStatus(
-                    $maintenanceSlot->getCaldavUrl(),
-                    $maintenanceSlot->getUsername(),
-                    $maintenanceSlot->getPassword(),
-                    $uid,
-                    $recurrence,
-                    $newStatus,
-                    $dateIso,
-                );
-                if ($caldavResult !== "") {
-                    $remoteOk = false;
-                    $remoteError =
-                        $this->getLang("maintenance_remote_write_failed") .
-                        ": " .
-                        $caldavResult;
-                }
-            } catch (Throwable $e) {
-                $remoteOk = false;
-                $remoteError =
-                    $this->getLang("maintenance_remote_write_failed") .
-                    ": " .
-                    $e->getMessage();
-            }
-        }
-
-        $msg =
-            $action === "complete"
-                ? $this->getLang("maintenance_complete_success")
-                : $this->getLang("maintenance_reopen_success");
-
-        echo json_encode([
-            "ok" => true,
-            "message" => $msg,
-            "remoteOk" => $remoteOk,
-            "remoteError" => $remoteError,
-        ]);
-    }
-
     /**
      * Handle AJAX requests for manual calendar sync.
      *

admin/main.php

@@ -9,7 +9,7 @@ if (!defined('DOKU_INC')) die();
 class admin_plugin_luxtools_main extends DokuWiki_Admin_Plugin
 {
     /** @var string[] Calendar slot keys */
-    protected $calendarSlotKeys = ['general', 'maintenance', 'slot3', 'slot4'];
+    protected $calendarSlotKeys = ['general', 'slot2', 'slot3', 'slot4'];
 
     /** @var string[] */
     protected $configKeys = [
@@ -38,12 +38,12 @@ class admin_plugin_luxtools_main extends DokuWiki_Admin_Plugin
         'calendar_general_password',
         'calendar_general_color',
         'calendar_general_display',
-        'calendar_maintenance_file',
+        'calendar_slot2_file',
-        'calendar_maintenance_caldav_url',
+        'calendar_slot2_caldav_url',
-        'calendar_maintenance_username',
+        'calendar_slot2_username',
-        'calendar_maintenance_password',
+        'calendar_slot2_password',
-        'calendar_maintenance_color',
+        'calendar_slot2_color',
-        'calendar_maintenance_display',
+        'calendar_slot2_display',
         'calendar_slot3_file',
         'calendar_slot3_caldav_url',
         'calendar_slot3_username',
@@ -278,7 +278,7 @@ class admin_plugin_luxtools_main extends DokuWiki_Admin_Plugin
         // Calendar slot settings
         $slotLabels = [
             'general' => 'General',
-            'maintenance' => 'Maintenance',
+            'slot2'   => 'Slot 2',
             'slot3'   => 'Slot 3',
             'slot4'   => 'Slot 4',
         ];

conf/default.php

@@ -37,7 +37,7 @@ $conf['open_service_url'] = 'http://127.0.0.1:8765';
 // Base filesystem path for chronological photo integration.
 $conf['image_base_path'] = '';
 
-// Calendar slot configuration (4 slots: general, maintenance, slot3, slot4)
+// Calendar slot configuration (4 slots: general, slot2, slot3, slot4)
 // Each slot has: file, caldav_url, username, password, color, display
 $conf['calendar_general_file'] = '';
 $conf['calendar_general_caldav_url'] = '';
@@ -46,12 +46,12 @@ $conf['calendar_general_password'] = '';
 $conf['calendar_general_color'] = '#4a90d9';
 $conf['calendar_general_display'] = 'none';
 
-$conf['calendar_maintenance_file'] = '';
+$conf['calendar_slot2_file'] = '';
-$conf['calendar_maintenance_caldav_url'] = '';
+$conf['calendar_slot2_caldav_url'] = '';
-$conf['calendar_maintenance_username'] = '';
+$conf['calendar_slot2_username'] = '';
-$conf['calendar_maintenance_password'] = '';
+$conf['calendar_slot2_password'] = '';
-$conf['calendar_maintenance_color'] = '#e67e22';
+$conf['calendar_slot2_color'] = '#e67e22';
-$conf['calendar_maintenance_display'] = 'none';
+$conf['calendar_slot2_display'] = 'none';
 
 $conf['calendar_slot3_file'] = '';
 $conf['calendar_slot3_caldav_url'] = '';

js/event-popup.js

@@ -1,14 +1,12 @@
 /* global window, document, jQuery */
 
 /**
- * Event Popup, Day Popup, Event CRUD, and Maintenance Task Handling
+ * Event Popup, Day Popup, and Event CRUD
  *
  * - Clicking an event item with data-luxtools-event="1" opens a detail popup.
  * - Clicking empty space in a calendar day cell opens a day popup listing all events.
  * - Day popup includes a "Create Event" action for authenticated users.
  * - Event popup includes "Edit" and "Delete" actions for authenticated users.
- * - Clicking a maintenance task action button sends an AJAX request to
- *   complete/reopen the task.
  */
 (function () {
   "use strict";
@@ -889,99 +887,6 @@
     return { confirmDelete: confirmDelete, executeDelete: executeDelete };
   })();
 
-  // ============================================================
-  // Maintenance Task Actions
-  // ============================================================
-  var MaintenanceTasks = (function () {
-    function handleAction(button) {
-      var action = button.getAttribute("data-action");
-      if (!action) return;
-
-      var item = button.closest("[data-task-uid]");
-      if (!item) item = button.closest("[data-uid]");
-      if (!item) return;
-
-      var uid =
-        item.getAttribute("data-task-uid") ||
-        item.getAttribute("data-uid") ||
-        "";
-      var date =
-        item.getAttribute("data-task-date") ||
-        item.getAttribute("data-date") ||
-        "";
-      var recurrence =
-        item.getAttribute("data-task-recurrence") ||
-        item.getAttribute("data-recurrence") ||
-        "";
-
-      if (!uid || !date) return;
-
-      var ajaxUrl = getAjaxUrl();
-      var sectok = getSecurityToken(item);
-
-      button.disabled = true;
-      button.textContent = "...";
-
-      var params =
-        "call=luxtools_maintenance_task" +
-        "&action=" +
-        encodeURIComponent(action) +
-        "&uid=" +
-        encodeURIComponent(uid) +
-        "&date=" +
-        encodeURIComponent(date) +
-        "&recurrence=" +
-        encodeURIComponent(recurrence) +
-        "&sectok=" +
-        encodeURIComponent(sectok);
-
-      var xhr = new XMLHttpRequest();
-      xhr.open("POST", ajaxUrl, true);
-      xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
-
-      xhr.onload = function () {
-        var result;
-        try {
-          result = JSON.parse(xhr.responseText);
-        } catch (e) {
-          result = { ok: false, error: "Invalid response" };
-        }
-
-        if (result.ok) {
-          if (action === "complete") {
-            item.classList.add("luxtools-task-completed");
-            button.textContent = "Reopen";
-            button.setAttribute("data-action", "reopen");
-          } else {
-            item.classList.remove("luxtools-task-completed");
-            item.style.opacity = "1";
-            button.textContent = "Complete";
-            button.setAttribute("data-action", "complete");
-          }
-          button.disabled = false;
-
-          if (result.remoteOk === false && result.remoteError) {
-            showNotification(result.remoteError, "warning");
-          }
-        } else {
-          showNotification(result.error || "Action failed", "error");
-          button.textContent = action === "complete" ? "Complete" : "Reopen";
-          button.disabled = false;
-        }
-      };
-
-      xhr.onerror = function () {
-        showNotification("Network error", "error");
-        button.textContent = action === "complete" ? "Complete" : "Reopen";
-        button.disabled = false;
-      };
-
-      xhr.send(params);
-    }
-
-    return { handleAction: handleAction };
-  })();
-
   // ============================================================
   // Event Delegation
   // ============================================================
@@ -990,26 +895,6 @@
     function (e) {
       var target = e.target;
 
-      // Maintenance task action buttons (day pages)
-      if (
-        target.classList &&
-        target.classList.contains("luxtools-task-action")
-      ) {
-        e.preventDefault();
-        MaintenanceTasks.handleAction(target);
-        return;
-      }
-
-      // Maintenance task complete buttons (syntax plugin list)
-      if (
-        target.classList &&
-        target.classList.contains("luxtools-task-complete-btn")
-      ) {
-        e.preventDefault();
-        MaintenanceTasks.handleAction(target);
-        return;
-      }
-
       // Event form save
       if (
         target.classList &&
@@ -1166,5 +1051,4 @@
 
   Luxtools.EventPopup = EventPopup;
   Luxtools.DayPopup = DayPopup;
-  Luxtools.MaintenanceTasks = MaintenanceTasks;
 })();

lang/de/lang.php

@@ -95,14 +95,6 @@ $lang["pagelink_unlinked"] = "Seite nicht verknüpft";
 $lang["pagelink_multi_warning"] = "Mehrere Ordner verknüpft";
 $lang["chronological_photos_title"] = "Fotos";
 $lang["chronological_events_title"] = "Termine";
-$lang["chronological_maintenance_title"] = "Aufgaben";
-$lang["maintenance_task_complete"] = "Erledigen";
-$lang["maintenance_task_reopen"] = "Wieder öffnen";
-$lang["maintenance_no_tasks"] = "Keine offenen Aufgaben.";
-$lang["maintenance_complete_success"] = "Aufgabe als erledigt markiert.";
-$lang["maintenance_complete_error"] = "Aktualisierung der Aufgabe fehlgeschlagen.";
-$lang["maintenance_reopen_success"] = "Aufgabe wieder geöffnet.";
-$lang["maintenance_remote_write_failed"] = "Lokale Aktualisierung erfolgreich, aber CalDAV-Update fehlgeschlagen. Wird bei nächster Synchronisierung erneut versucht.";
 $lang["calendar_sync_button"] = "Kalender synchronisieren";
 $lang["calendar_sync_success"] = "Kalender-Synchronisierung abgeschlossen.";
 $lang["calendar_sync_error"] = "Kalender-Synchronisierung fehlgeschlagen.";

lang/en/lang.php

@@ -96,14 +96,6 @@ $lang["pagelink_multi_warning"] = "Multiple folders linked";
 $lang["calendar_err_badmonth"] = "Invalid calendar month. Use YYYY-MM.";
 $lang["chronological_photos_title"] = "Photos";
 $lang["chronological_events_title"] = "Events";
-$lang["chronological_maintenance_title"] = "Tasks";
-$lang["maintenance_task_complete"] = "Complete";
-$lang["maintenance_task_reopen"] = "Reopen";
-$lang["maintenance_no_tasks"] = "No open tasks.";
-$lang["maintenance_complete_success"] = "Task marked as completed.";
-$lang["maintenance_complete_error"] = "Failed to update task.";
-$lang["maintenance_reopen_success"] = "Task reopened.";
-$lang["maintenance_remote_write_failed"] = "Local update succeeded, but remote CalDAV update failed. Will retry on next sync.";
 $lang["calendar_sync_button"] = "Sync Calendars";
 $lang["calendar_sync_success"] = "Calendar sync completed.";
 $lang["calendar_sync_error"] = "Calendar sync failed.";

src/CalendarEvent.php

@@ -10,7 +10,7 @@ namespace dokuwiki\plugin\luxtools;
  */
 class CalendarEvent
 {
-    /** @var string Calendar slot key (e.g. 'general', 'maintenance') */
+    /** @var string Calendar slot key (e.g. 'general', 'slot2') */
     public $slotKey;
 
     /** @var string Unique source event UID */
@@ -52,35 +52,4 @@ class CalendarEvent
 
     /** @var string The date (YYYY-MM-DD) this event applies to */
     public $dateIso;
-
-    /**
-     * Build a stable completion key for maintenance task tracking.
-     *
-     * @return string
-     */
-    public function completionKey(): string
-    {
-        return implode('|', [$this->slotKey, $this->uid, $this->dateIso]);
-    }
-
-    /**
-     * Whether this event/task is marked as completed.
-     *
-     * @return bool
-     */
-    public function isCompleted(): bool
-    {
-        $s = strtoupper($this->status);
-        return $s === 'COMPLETED';
-    }
-
-    /**
-     * Whether this event/task is open (for maintenance filtering).
-     *
-     * @return bool
-     */
-    public function isOpen(): bool
-    {
-        return !$this->isCompleted();
-    }
 }

src/CalendarService.php

@@ -14,17 +14,13 @@ use Throwable;
 /**
  * Slot-aware calendar service.
  *
- * Provides normalized event data grouped by slot for rendering,
+ * Provides normalized event data grouped by slot for rendering and widget indicators.
- * widget indicators, task list queries, and completion tracking.
  */
 class CalendarService
 {
     /** @var array<string,CalendarEvent[]> In-request cache keyed by "slotKey|dateIso" */
     protected static $dayCache = [];
 
-    /** @var array<string,CalendarEvent[]> In-request cache keyed by "slotKey|all" for open tasks */
-    protected static $taskCache = [];
-
     /** @var array<string,VCalendar|null> In-request cache keyed by file path */
     protected static $vcalCache = [];
 
@@ -111,81 +107,6 @@ class CalendarService
         return self::slotEventsForDate($slot, $dateIso) !== [];
     }
 
-    /**
-     * Get all open maintenance tasks due up to (and including) today.
-     *
-     * @param CalendarSlot $maintenanceSlot
-     * @param string $todayIso YYYY-MM-DD
-     * @param int $pastDays Maximum number of overdue days to include
-     * @return CalendarEvent[] Sorted: overdue first, then today, then by title
-     */
-    public static function openMaintenanceTasks(CalendarSlot $maintenanceSlot, string $todayIso, int $pastDays = 30): array
-    {
-        if (!$maintenanceSlot->isEnabled()) return [];
-        if (!ChronoID::isIsoDate($todayIso)) return [];
-
-        $pastDays = max(0, $pastDays);
-
-        $file = $maintenanceSlot->getFile();
-        if ($file === '' || !is_file($file) || !is_readable($file)) return [];
-
-        $cacheKey = $maintenanceSlot->getKey() . '|tasks|' . $todayIso . '|' . $pastDays;
-        if (isset(self::$taskCache[$cacheKey])) {
-            return self::$taskCache[$cacheKey];
-        }
-
-        $tasks = self::parseAllTasksFromFile($file, $maintenanceSlot->getKey(), $todayIso);
-        $oldestOpenDateIso = self::oldestOpenTaskDate($todayIso, $pastDays);
-
-        // Filter: only non-completed, due today or earlier, and not older than the configured overdue window.
-        $open = [];
-        foreach ($tasks as $task) {
-            if ($task->isCompleted()) continue;
-            if ($task->dateIso > $todayIso) continue;
-            if ($task->dateIso < $oldestOpenDateIso) continue;
-            $open[] = $task;
-        }
-
-        // Sort: overdue first, then today, then by time, then by title
-        usort($open, static function (CalendarEvent $a, CalendarEvent $b) use ($todayIso): int {
-            $aOverdue = $a->dateIso < $todayIso;
-            $bOverdue = $b->dateIso < $todayIso;
-            if ($aOverdue !== $bOverdue) {
-                return $aOverdue ? -1 : 1;
-            }
-            $dateCmp = strcmp($a->dateIso, $b->dateIso);
-            if ($dateCmp !== 0) return $dateCmp;
-
-            $timeCmp = strcmp($a->time, $b->time);
-            if ($timeCmp !== 0) return $timeCmp;
-
-            return strcmp($a->summary, $b->summary);
-        });
-
-        self::$taskCache[$cacheKey] = $open;
-        return $open;
-    }
-
-    /**
-     * @param string $todayIso
-     * @param int $pastDays
-     * @return string
-     */
-    protected static function oldestOpenTaskDate(string $todayIso, int $pastDays): string
-    {
-        try {
-            $today = new DateTimeImmutable($todayIso . ' 00:00:00', new DateTimeZone('UTC'));
-        } catch (Throwable $e) {
-            return $todayIso;
-        }
-
-        if ($pastDays === 0) {
-            return $today->format('Y-m-d');
-        }
-
-        return $today->sub(new DateInterval('P' . $pastDays . 'D'))->format('Y-m-d');
-    }
-
     /**
      * Get slot-level day indicator data for a whole month.
      *
@@ -329,49 +250,6 @@ class CalendarService
         }
     }
 
-    /**
-     * Parse all tasks (VEVENT with STATUS) from a maintenance file,
-     * expanding recurrences up to the given date.
-     *
-     * @param string $file
-     * @param string $slotKey
-     * @param string $todayIso
-     * @return CalendarEvent[]
-     */
-    protected static function parseAllTasksFromFile(string $file, string $slotKey, string $todayIso): array
-    {
-        $calendar = self::readCalendar($file);
-        if ($calendar === null) return [];
-
-        try {
-            $component = $calendar;
-
-            // Expand from a reasonable lookback to tomorrow
-            $utc = new DateTimeZone('UTC');
-            $rangeStart = new DateTimeImmutable('2020-01-01 00:00:00', $utc);
-            $rangeEnd = new DateTimeImmutable($todayIso . ' 00:00:00', $utc);
-            $rangeEnd = $rangeEnd->add(new DateInterval('P1D'));
-
-            $expanded = $component->expand($rangeStart, $rangeEnd);
-            if (!($expanded instanceof VCalendar)) return [];
-
-            $tasks = [];
-
-            // Collect VEVENTs
-            foreach ($expanded->select('VEVENT') as $vevent) {
-                if (!($vevent instanceof VEvent)) continue;
-                $event = self::normalizeVEvent($vevent, $slotKey);
-                if ($event !== null) {
-                    $tasks[] = $event;
-                }
-            }
-
-            return $tasks;
-        } catch (Throwable $e) {
-            return [];
-        }
-    }
-
     /**
      * Collect normalized events from an expanded VCalendar for a specific date.
      *
@@ -440,42 +318,6 @@ class CalendarService
         return $event;
     }
 
-    /**
-     * Normalize a VEVENT into a CalendarEvent (without day filtering).
-     *
-     * @param VEvent $vevent
-     * @param string $slotKey
-     * @return CalendarEvent|null
-     */
-    protected static function normalizeVEvent(VEvent $vevent, string $slotKey): ?CalendarEvent
-    {
-        if (!isset($vevent->DTSTART)) return null;
-
-        $isAllDay = strtoupper((string)($vevent->DTSTART['VALUE'] ?? '')) === 'DATE';
-        $start = self::toImmutable($vevent->DTSTART->getDateTime());
-        if ($start === null) return null;
-
-        $end = self::resolveEnd($vevent, $start, $isAllDay);
-
-        $event = new CalendarEvent();
-        $event->slotKey = $slotKey;
-        $event->uid = trim((string)($vevent->UID ?? ''));
-        $event->recurrenceId = isset($vevent->{'RECURRENCE-ID'}) ? trim((string)$vevent->{'RECURRENCE-ID'}) : '';
-        $event->summary = trim((string)($vevent->SUMMARY ?? ''));
-        if ($event->summary === '') $event->summary = '(ohne Titel)';
-        $event->startIso = $start->format(DateTimeInterface::ATOM);
-        $event->endIso = $end->format(DateTimeInterface::ATOM);
-        $event->allDay = $isAllDay;
-        $event->time = $isAllDay ? '' : $start->format('H:i');
-        $event->location = trim((string)($vevent->LOCATION ?? ''));
-        $event->description = trim((string)($vevent->DESCRIPTION ?? ''));
-        $event->status = strtoupper(trim((string)($vevent->STATUS ?? '')));
-        $event->componentType = 'VEVENT';
-        $event->dateIso = $start->format('Y-m-d');
-
-        return $event;
-    }
-
     /**
      * Resolve the end date/time for a VEVENT.
      *
@@ -573,7 +415,6 @@ class CalendarService
     public static function clearCache(): void
     {
         self::$dayCache = [];
-        self::$taskCache = [];
         self::$vcalCache = [];
     }
 }

src/CalendarSlot.php

@@ -12,7 +12,7 @@ namespace dokuwiki\plugin\luxtools;
 class CalendarSlot
 {
     /** @var string[] Ordered list of all supported slot keys */
-    public const SLOT_KEYS = ['general', 'maintenance', 'slot3', 'slot4'];
+    public const SLOT_KEYS = ['general', 'slot2', 'slot3', 'slot4'];
 
      /** @var string[] Allowed widget indicator display positions */
      public const INDICATOR_DISPLAYS = ['none', 'top-left', 'top-right', 'bottom-left', 'bottom-right'];
@@ -20,7 +20,7 @@ class CalendarSlot
     /** @var array<string,string> Human-readable labels for slot keys */
     public const SLOT_LABELS = [
         'general' => 'General',
-        'maintenance' => 'Maintenance',
+        'slot2'   => 'Slot 2',
         'slot3'   => 'Slot 3',
         'slot4'   => 'Slot 4',
     ];

style.css

@@ -724,7 +724,7 @@ div.luxtools-calendar
 /* ============================================================
  * Calendar Widget Indicators
  * Colored corner markers showing which slots have events on a day.
- * Positions: general=top-left, maintenance=top-right,
+ * Positions: general=top-left, slot2=top-right,
  *            slot3=bottom-right, slot4=bottom-left (clockwise)
  * ============================================================ */
 div.luxtools-calendar td.luxtools-calendar-day {
@@ -926,78 +926,6 @@ div.luxtools-chronological-events li[data-luxtools-event] .luxtools-event-time {
     margin-right: 0.25em;
 }
 
-/* ============================================================
- * Maintenance Tasks
- * ============================================================ */
-div.luxtools-chronological-maintenance li {
-    border-left-color: #e67e22;
-}
-
-li.luxtools-maintenance-task.luxtools-task-completed {
-    opacity: 0.5;
-    text-decoration: line-through;
-}
-
-button.luxtools-task-action,
-button.luxtools-task-complete-btn {
-    margin-left: 0.5em;
-    padding: 0.15em 0.5em;
-    font-size: 0.85em;
-    border: 1px solid @ini_border;
-    border-radius: 0.2em;
-    background-color: @ini_background_alt;
-    cursor: pointer;
-}
-
-button.luxtools-task-action:hover,
-button.luxtools-task-complete-btn:hover {
-    background-color: @ini_highlight;
-}
-
-button.luxtools-task-action:disabled,
-button.luxtools-task-complete-btn:disabled {
-    opacity: 0.5;
-    cursor: wait;
-}
-
-/* ============================================================
- * Maintenance Task List (syntax plugin)
- * ============================================================ */
-div.luxtools-maintenance-tasks {
-    margin: 1em 0;
-}
-
-ul.luxtools-maintenance-task-list {
-    list-style: none;
-    padding-left: 0;
-}
-
-ul.luxtools-maintenance-task-list li {
-    padding: 0.35em 0.5em;
-    margin: 0.25em 0;
-    border-left: 3px solid #e67e22;
-}
-
-li.luxtools-task-overdue .luxtools-task-date {
-    color: #c0392b;
-    font-weight: bold;
-}
-
-.luxtools-task-date {
-    font-family: monospace;
-    margin-right: 0.5em;
-}
-
-.luxtools-task-time {
-    font-weight: bold;
-    margin-right: 0.25em;
-}
-
-.luxtools-maintenance-task-item.luxtools-task-completed {
-    opacity: 0.5;
-    text-decoration: line-through;
-}
-
 /* ============================================================
  * Event Popup (content-specific styles – structural dialog
  * styles live in dialog.css)

syntax/maintenance.php

@@ -1,194 +0,0 @@
-<?php
-
-use dokuwiki\Extension\SyntaxPlugin;
-use dokuwiki\plugin\luxtools\CalendarService;
-use dokuwiki\plugin\luxtools\CalendarSlot;
-
-require_once(__DIR__ . '/../autoload.php');
-
-/**
- * luxtools Plugin: Maintenance task list syntax.
- *
- * Renders a list of all non-completed maintenance tasks due today or earlier.
- *
- * Syntax:
- *   {{maintenance_tasks>}}
- *   {{maintenance_tasks>&past=14}}
- */
-class syntax_plugin_luxtools_maintenance extends SyntaxPlugin
-{
-     private const DEFAULT_PAST_DAYS = 30;
-
-    /** @inheritdoc */
-    public function getType()
-    {
-        return 'substition';
-    }
-
-    /** @inheritdoc */
-    public function getPType()
-    {
-        return 'block';
-    }
-
-    /** @inheritdoc */
-    public function getSort()
-    {
-        return 225;
-    }
-
-    /** @inheritdoc */
-    public function connectTo($mode)
-    {
-        $this->Lexer->addSpecialPattern(
-            '\{\{maintenance_tasks>.*?\}\}',
-            $mode,
-            'plugin_luxtools_maintenance'
-        );
-    }
-
-    /** @inheritdoc */
-    public function handle($match, $state, $pos, Doku_Handler $handler)
-    {
-        $match = substr($match, strlen('{{maintenance_tasks>'), -2);
-        $params = $this->parseFlags($match);
-
-        return [
-            'ok' => true,
-            'past' => $this->normalizePastDays($params['past'] ?? null),
-        ];
-    }
-
-    /** @inheritdoc */
-    public function render($format, Doku_Renderer $renderer, $data)
-    {
-        if ($data === false || !is_array($data)) return false;
-        if ($format !== 'xhtml') return false;
-        if (!($renderer instanceof Doku_Renderer_xhtml)) return false;
-
-        $renderer->nocache();
-
-        $slots = CalendarSlot::loadAll($this);
-        $maintenanceSlot = $slots['maintenance'] ?? null;
-
-        if ($maintenanceSlot === null || !$maintenanceSlot->isEnabled()) {
-            $renderer->doc .= '<div class="luxtools-plugin luxtools-maintenance-tasks">'
-                . '<p class="luxtools-empty">'
-                . hsc($this->getLang('maintenance_no_tasks'))
-                . '</p></div>';
-            return true;
-        }
-
-        $todayIso = date('Y-m-d');
-        $pastDays = $this->normalizePastDays($data['past'] ?? null);
-        $tasks = CalendarService::openMaintenanceTasks($maintenanceSlot, $todayIso, $pastDays);
-        $ajaxUrl = defined('DOKU_BASE') ? (string)DOKU_BASE . 'lib/exe/ajax.php' : 'lib/exe/ajax.php';
-        $secToken = function_exists('getSecurityToken') ? (string)getSecurityToken() : '';
-
-        $title = (string)$this->getLang('chronological_maintenance_title');
-        if ($title === '') $title = 'Tasks';
-
-        $renderer->doc .= '<div class="luxtools-plugin luxtools-maintenance-tasks"'
-            . ' data-luxtools-ajax-url="' . hsc($ajaxUrl) . '"'
-            . ' data-luxtools-sectok="' . hsc($secToken) . '">';
-        $renderer->doc .= '<h3>' . hsc($title) . '</h3>';
-
-        if ($tasks === []) {
-            $noTasks = (string)$this->getLang('maintenance_no_tasks');
-            if ($noTasks === '') $noTasks = 'No open tasks.';
-            $renderer->doc .= '<p class="luxtools-empty">' . hsc($noTasks) . '</p>';
-        } else {
-            $renderer->doc .= '<ul class="luxtools-maintenance-task-list">';
-            foreach ($tasks as $task) {
-                $overdue = ($task->dateIso < $todayIso);
-                $classes = 'luxtools-maintenance-task-item';
-                if ($overdue) {
-                    $classes .= ' luxtools-task-overdue';
-                }
-
-                $renderer->doc .= '<li class="' . $classes . '"';
-                $renderer->doc .= ' data-uid="' . hsc($task->uid) . '"';
-                $renderer->doc .= ' data-date="' . hsc($task->dateIso) . '"';
-                $renderer->doc .= ' data-recurrence="' . hsc($task->recurrenceId) . '"';
-                $renderer->doc .= '>';
-
-                // Date badge
-                $renderer->doc .= '<span class="luxtools-task-date">' . hsc($task->dateIso) . '</span> ';
-
-                // Time if not all-day
-                if ($task->time !== '') {
-                    $renderer->doc .= '<span class="luxtools-task-time">' . hsc($task->time) . '</span> ';
-                }
-
-                // Summary
-                $renderer->doc .= '<span class="luxtools-task-summary">' . hsc($task->summary) . '</span>';
-
-                // Complete button
-                $completeLabel = (string)$this->getLang('maintenance_task_complete');
-                if ($completeLabel === '') $completeLabel = 'Complete';
-                $renderer->doc .= ' <button class="luxtools-task-complete-btn" type="button"'
-                    . ' data-action="complete"'
-                    . '>' . hsc($completeLabel) . '</button>';
-
-                $renderer->doc .= '</li>';
-            }
-            $renderer->doc .= '</ul>';
-        }
-
-        $renderer->doc .= '</div>';
-
-        return true;
-    }
-
-    /**
-     * @param string $rawFlags
-     * @return array<string,string>
-     */
-    protected function parseFlags(string $rawFlags): array
-    {
-        $rawFlags = trim($rawFlags);
-        if ($rawFlags === '') {
-            return [];
-        }
-
-        if ($rawFlags[0] === '&') {
-            $rawFlags = substr($rawFlags, 1);
-        }
-
-        $params = [];
-        foreach (explode('&', $rawFlags) as $flag) {
-            if (trim($flag) === '') continue;
-
-            [$name, $value] = array_pad(explode('=', $flag, 2), 2, '');
-            $name = strtolower(trim($name));
-            $value = trim($value);
-
-            if ($name === '') continue;
-            $params[$name] = $value;
-        }
-
-        return $params;
-    }
-
-    /**
-     * @param mixed $value
-     * @return int
-     */
-    protected function normalizePastDays($value): int
-    {
-        if ($value === null || $value === '') {
-            return self::DEFAULT_PAST_DAYS;
-        }
-
-        if (is_int($value)) {
-            return max(0, $value);
-        }
-
-        $value = trim((string)$value);
-        if ($value === '' || !preg_match('/^-?\d+$/', $value)) {
-            return self::DEFAULT_PAST_DAYS;
-        }
-
-        return max(0, (int)$value);
-    }
-}