import { describe, it, expect, beforeEach } from 'vitest';
import { AllDayManager } from '../../src/managers/AllDayManager';
import { setupMockDOM, createMockEvent } from '../helpers/dom-helpers';

describe('AllDayManager - Manager Functionality', () => {
  let allDayManager: AllDayManager;

  beforeEach(() => {
    setupMockDOM();
    allDayManager = new AllDayManager();
  });

  describe('Layout Calculation Integration', () => {
    it('should delegate layout calculation to AllDayLayoutEngine', () => {
      // Simple integration test to verify manager uses the layout engine correctly
      const event = createMockEvent('test', 'Test Event', '2024-09-24', '2024-09-24');
      const weekDates = ['2024-09-22', '2024-09-23', '2024-09-24', '2024-09-25', '2024-09-26'];
      
      const layouts = allDayManager.calculateAllDayEventsLayout([event], weekDates);
      
      expect(layouts.size).toBe(1);
      expect(layouts.has('test')).toBe(true);
      
      const layout = layouts.get('test');
      expect(layout?.startColumn).toBe(3); // Sept 24 is column 3
      expect(layout?.row).toBe(1);
    });

    it('should handle empty event list', () => {
      const weekDates = ['2024-09-22', '2024-09-23', '2024-09-24', '2024-09-25', '2024-09-26'];
      const layouts = allDayManager.calculateAllDayEventsLayout([], weekDates);
      
      expect(layouts.size).toBe(0);
    });

    it('should handle empty week dates', () => {
      const event = createMockEvent('test', 'Test Event', '2024-09-24', '2024-09-24');
      const layouts = allDayManager.calculateAllDayEventsLayout([event], []);
      
      expect(layouts.size).toBe(0);
    });
  });
});