Separates all-day event rendering; handles header lifecycle

Event rendering strategies now exclusively handle timed events, while all-day events are managed by a dedicated renderer.

Centralizes calendar header creation within `GridRenderer`, ensuring the header element is always present from initial DOM construction. `HeaderManager` and `ScrollManager` now react to a `header:ready` event, which signifies the header is fully initialized.

Synchronizes all-day event rendering with header readiness, temporarily queuing events until the header is prepared. Emits an `allday:checkHeight` event to prompt all-day container height adjustments after rendering.

src/renderers/EventRendererManager.ts

@@ -6,6 +6,7 @@ import { CalendarTypeFactory } from '../factories/CalendarTypeFactory';
 import { EventManager } from '../managers/EventManager';
 import { EventRendererStrategy } from './EventRenderer';
 import { SwpEventElement } from '../elements/SwpEventElement';
+import { AllDayEventRenderer } from './AllDayEventRenderer';
 import { DragStartEventPayload, DragMoveEventPayload, DragEndEventPayload, DragMouseEnterHeaderEventPayload, DragMouseLeaveHeaderEventPayload } from '../types/EventTypes';
 /**
  * EventRenderingService - Render events i DOM med positionering using Strategy Pattern
@@ -15,6 +16,11 @@ export class EventRenderingService {
     private eventBus: IEventBus;
     private eventManager: EventManager;
     private strategy: EventRendererStrategy;
+    private allDayEventRenderer: AllDayEventRenderer;
+    
+    // Store all-day events until header is ready with dates
+    private pendingAllDayEvents: CalendarEvent[] = [];
+    private isHeaderReady: boolean = false;
 
     private dragMouseLeaveHeaderListener: ((event: Event) => void) | null = null;
 
@@ -25,6 +31,9 @@ export class EventRenderingService {
         // Cache strategy at initialization
         const calendarType = calendarConfig.getCalendarMode();
         this.strategy = CalendarTypeFactory.getEventRenderer(calendarType);
+        
+        // Initialize all-day event renderer
+        this.allDayEventRenderer = new AllDayEventRenderer();
 
         this.setupEventListeners();
     }
@@ -43,13 +52,40 @@ export class EventRenderingService {
             context.endDate
         );
 
-
         if (events.length === 0) {
             return;
         }
 
-        // Use cached strategy to render events in the specific container
-        this.strategy.renderEvents(events, context.container);
+        // Filter events by type
+        const timedEvents = events.filter(event => !event.allDay);
+        const allDayEvents = events.filter(event => event.allDay);
+
+        console.log('🎯 EventRenderingService: Event filtering', {
+            totalEvents: events.length,
+            timedEvents: timedEvents.length,
+            allDayEvents: allDayEvents.length,
+            allDayEventIds: allDayEvents.map(e => e.id)
+        });
+
+        // Render timed events using existing strategy
+        if (timedEvents.length > 0) {
+            this.strategy.renderEvents(timedEvents, context.container);
+        }
+
+        // Render all-day events - wait for header if not ready
+        if (allDayEvents.length > 0) {
+            if (this.isHeaderReady) {
+                this.renderAllDayEvents(allDayEvents);
+                // Check and adjust all-day container height after rendering
+                this.eventBus.emit('allday:checkHeight');
+            } else {
+                console.log('🕐 EventRendererManager: Header not ready, storing all-day events for later');
+                // Only store if we don't already have pending events to avoid duplicates
+                if (this.pendingAllDayEvents.length === 0) {
+                    this.pendingAllDayEvents = [...allDayEvents];
+                }
+            }
+        }
 
         // Emit EVENTS_RENDERED event for filtering system
         this.eventBus.emit(CoreEvents.EVENTS_RENDERED, {
@@ -68,6 +104,20 @@ export class EventRenderingService {
             this.handleViewChanged(event as CustomEvent);
         });
 
+        // Listen for header ready - when dates are populated
+        this.eventBus.on('header:ready', () => {
+            console.log('🎯 EventRendererManager: Header ready, rendering pending all-day events');
+            this.isHeaderReady = true;
+            
+            if (this.pendingAllDayEvents.length > 0) {
+                this.renderAllDayEvents(this.pendingAllDayEvents);
+                this.pendingAllDayEvents = []; // Clear after rendering
+                
+                // Check and adjust all-day container height after rendering
+                this.eventBus.emit('allday:checkHeight');
+            }
+        });
+
         // Handle all drag events and delegate to appropriate renderer
         this.setupDragEventListeners();
 
@@ -299,8 +349,45 @@ export class EventRenderingService {
         });
     }
 
+    /**
+     * Render all-day events using AllDayEventRenderer
+     */
+    private renderAllDayEvents(allDayEvents: CalendarEvent[]): void {
+        console.log('🏗️ EventRenderingService: Rendering all-day events', {
+            count: allDayEvents.length,
+            events: allDayEvents.map(e => ({ id: e.id, title: e.title }))
+        });
+
+        // Header always exists now, so we can render directly
+        allDayEvents.forEach(event => {
+            const renderedElement = this.allDayEventRenderer.renderAllDayEvent(event);
+            if (renderedElement) {
+                console.log('✅ EventRenderingService: Rendered all-day event', {
+                    id: event.id,
+                    title: event.title,
+                    element: renderedElement.tagName
+                });
+            } else {
+                console.warn('❌ EventRenderingService: Failed to render all-day event', {
+                    id: event.id,
+                    title: event.title
+                });
+            }
+        });
+    }
+
     private clearEvents(container?: HTMLElement): void {
         this.strategy.clearEvents(container);
+        
+        // Also clear all-day events
+        const allDayContainer = document.querySelector('swp-allday-container');
+        if (allDayContainer) {
+            allDayContainer.querySelectorAll('swp-event').forEach(event => event.remove());
+        }
+        
+        // Clear pending all-day events
+        this.pendingAllDayEvents = [];
+        this.isHeaderReady = false;
     }
 
     public refresh(container?: HTMLElement): void {