import type { CompleteOnboardingViewData } from '@/lib/builders/view-data/CompleteOnboardingViewData';
import { OnboardingStatusDisplay } from '../display-objects/OnboardingStatusDisplay';

import { ViewModel } from "../contracts/view-models/ViewModel";

/**
 * Complete onboarding view model
 * UI representation of onboarding completion result
 *
 * Composes Display Objects and transforms ViewData for UI consumption.
 */
export class CompleteOnboardingViewModel extends ViewModel {
  success: boolean;
  driverId?: string;
  errorMessage?: string;

  // UI-specific derived fields (primitive outputs only)
  readonly statusLabel: string;
  readonly statusVariant: string;
  readonly statusIcon: string;
  readonly statusMessage: string;

  constructor(viewData: CompleteOnboardingViewData) {
    super();
    this.success = viewData.success;
    if (viewData.driverId !== undefined) this.driverId = viewData.driverId;
    if (viewData.errorMessage !== undefined) this.errorMessage = viewData.errorMessage;

    // Derive UI-specific fields using Display Object
    this.statusLabel = OnboardingStatusDisplay.statusLabel(this.success);
    this.statusVariant = OnboardingStatusDisplay.statusVariant(this.success);
    this.statusIcon = OnboardingStatusDisplay.statusIcon(this.success);
    this.statusMessage = OnboardingStatusDisplay.statusMessage(this.success, this.errorMessage);
  }

  /** UI-specific: Whether onboarding was successful */
  get isSuccessful(): boolean {
    return this.success;
  }

  /** UI-specific: Whether there was an error */
  get hasError(): boolean {
    return !!this.errorMessage;
  }
}