import { CalendarOrchestrator } from '../core/CalendarOrchestrator';
import { TimeAxisRenderer } from '../features/timeaxis/TimeAxisRenderer';
import { NavigationAnimator } from '../core/NavigationAnimator';
import { DateService } from '../core/DateService';
import { ScrollManager } from '../core/ScrollManager';
import { HeaderDrawerManager } from '../core/HeaderDrawerManager';
import { IndexedDBContext } from '../storage/IndexedDBContext';
import { DataSeeder } from '../workers/DataSeeder';
import { ViewConfig } from '../core/ViewConfig';
import { DragDropManager } from '../managers/DragDropManager';
import { EdgeScrollManager } from '../managers/EdgeScrollManager';
import { ResizeManager } from '../managers/ResizeManager';

export class DemoApp {
  private animator!: NavigationAnimator;
  private container!: HTMLElement;
  private weekOffset = 0;
  private currentView: 'day' | 'simple' | 'resource' | 'team' = 'simple';

  constructor(
    private orchestrator: CalendarOrchestrator,
    private timeAxisRenderer: TimeAxisRenderer,
    private dateService: DateService,
    private scrollManager: ScrollManager,
    private headerDrawerManager: HeaderDrawerManager,
    private indexedDBContext: IndexedDBContext,
    private dataSeeder: DataSeeder,
    private dragDropManager: DragDropManager,
    private edgeScrollManager: EdgeScrollManager,
    private resizeManager: ResizeManager
  ) {}

  async init(): Promise<void> {
    // Initialize IndexedDB
    await this.indexedDBContext.initialize();
    console.log('[DemoApp] IndexedDB initialized');

    // Seed data if empty
    await this.dataSeeder.seedIfEmpty();
    console.log('[DemoApp] Data seeding complete');

    this.container = document.querySelector('swp-calendar-container') as HTMLElement;

    // NavigationAnimator har DOM-dependencies - tilladt med new
    this.animator = new NavigationAnimator(
      document.querySelector('swp-header-track') as HTMLElement,
      document.querySelector('swp-content-track') as HTMLElement
    );

    // Render time axis (06:00 - 18:00)
    this.timeAxisRenderer.render(document.getElementById('time-axis') as HTMLElement, 6, 18);

    // Init scroll synkronisering
    this.scrollManager.init(this.container);

    // Init header drawer
    this.headerDrawerManager.init(this.container);

    // Init drag-drop
    this.dragDropManager.init(this.container);

    // Init edge scroll
    const scrollableContent = this.container.querySelector('swp-scrollable-content') as HTMLElement;
    this.edgeScrollManager.init(scrollableContent);

    // Init resize
    this.resizeManager.init(this.container);

    // Setup event handlers
    this.setupNavigation();
    this.setupDrawerToggle();
    this.setupViewSwitching();

    // Initial render
    this.render();
  }

  private async render(): Promise<void> {
    const viewConfig = this.buildViewConfig();
    await this.orchestrator.render(viewConfig, this.container);
  }

  private buildViewConfig(): ViewConfig {
    const dates = this.dateService.getWeekDates(this.weekOffset, 3);
    const today = this.dateService.getWeekDates(this.weekOffset, 1);

    switch (this.currentView) {
      case 'day':
        return {
          templateId: 'day',
          groupings: [
            { type: 'resource', values: ['EMP001', 'EMP002'] },
            { type: 'date', values: today }
          ]
        };

      case 'simple':
        return {
          templateId: 'simple',
          groupings: [
            { type: 'date', values: dates }
          ]
        };

      case 'resource':
        return {
          templateId: 'resource',
          groupings: [
            { type: 'resource', values: ['EMP001', 'EMP002'] },
            { type: 'date', values: dates }
          ]
        };

      case 'team':
        return {
          templateId: 'team',
          groupings: [
            { type: 'team', values: ['team1', 'team2'] },
            { type: 'resource', values: ['res1', 'res2', 'res3'] },
            { type: 'date', values: dates }
          ]
        };
    }
  }

  private setupNavigation(): void {
    document.getElementById('btn-prev')!.onclick = () => {
      this.weekOffset--;
      this.animator.slide('right', () => this.render());
    };

    document.getElementById('btn-next')!.onclick = () => {
      this.weekOffset++;
      this.animator.slide('left', () => this.render());
    };
  }

  private setupViewSwitching(): void {
    document.getElementById('btn-day')?.addEventListener('click', () => {
      this.currentView = 'day';
      this.render();
    });

    document.getElementById('btn-simple')?.addEventListener('click', () => {
      this.currentView = 'simple';
      this.render();
    });

    document.getElementById('btn-resource')?.addEventListener('click', () => {
      this.currentView = 'resource';
      this.render();
    });

    document.getElementById('btn-team')?.addEventListener('click', () => {
      this.currentView = 'team';
      this.render();
    });
  }

  private setupDrawerToggle(): void {
    document.getElementById('btn-drawer')!.onclick = () => {
      this.headerDrawerManager.toggle();
    };
  }
}