/**
 * Page Analysis Helper Functions
 *
 * Utility functions for checking PageAnalysis pattern detection status.
 * Provides convenient boolean checks and counting methods for UI components.
 *
 * @layer Application - Utilities
 */

import { PageAnalysis } from '@/domain/entities/PageAnalysis';
import { ReliabilityStatus } from '@archer/domain';

/**
 * Checks if page analysis has any detected patterns
 *
 * Returns true if analysis contains listing templates, search mechanism,
 * or pagination mechanism.
 *
 * @param analysis - PageAnalysis domain entity
 * @returns true if any patterns detected, false otherwise
 */
export function hasPatterns(analysis: PageAnalysis): boolean {
  return analysis.hasPatterns();
}

/**
 * Checks if page analysis is confirmed by AI
 *
 * Returns true if reliability status is CONFIRMED.
 *
 * @param analysis - PageAnalysis domain entity
 * @returns true if confirmed, false otherwise
 */
export function isConfirmed(analysis: PageAnalysis): boolean {
  return analysis.isConfirmed();
}

/**
 * Gets count of detected listing templates
 *
 * Returns number of listing templates detected in analysis.
 * Returns 0 if no templates detected.
 *
 * @param analysis - PageAnalysis domain entity
 * @returns Number of listing templates (0 if none)
 */
export function getListingCount(analysis: PageAnalysis): number {
  return analysis.getListingCount();
}

/**
 * Checks if page analysis is in draft state
 *
 * Returns true if reliability status is DRAFT or undefined.
 *
 * @param analysis - PageAnalysis domain entity
 * @returns true if draft, false otherwise
 */
export function isDraft(analysis: PageAnalysis): boolean {
  return (
    analysis.reliabilityStatus === ReliabilityStatus.DRAFT ||
    analysis.reliabilityStatus === undefined
  );
}

/**
 * Checks if page analysis is pending confirmation
 *
 * Returns true if reliability status is PENDING_CONFIRMATION.
 *
 * @param analysis - PageAnalysis domain entity
 * @returns true if pending confirmation, false otherwise
 */
export function isPendingConfirmation(analysis: PageAnalysis): boolean {
  return analysis.reliabilityStatus === ReliabilityStatus.PENDING_CONFIRMATION;
}

/**
 * Checks if page analysis is rejected
 *
 * Returns true if reliability status is REJECTED.
 *
 * @param analysis - PageAnalysis domain entity
 * @returns true if rejected, false otherwise
 */
export function isRejected(analysis: PageAnalysis): boolean {
  return analysis.reliabilityStatus === ReliabilityStatus.REJECTED;
}

/**
 * Checks if page analysis has listing templates
 *
 * @param analysis - PageAnalysis domain entity
 * @returns true if has listing templates, false otherwise
 */
export function hasListingTemplates(analysis: PageAnalysis): boolean {
  return (analysis.listingTemplates?.length ?? 0) > 0;
}

/**
 * Checks if page analysis has search mechanism
 *
 * @param analysis - PageAnalysis domain entity
 * @returns true if has search mechanism, false otherwise
 */
export function hasSearchMechanism(analysis: PageAnalysis): boolean {
  return analysis.searchMechanism !== undefined;
}

/**
 * Checks if page analysis has pagination mechanism
 *
 * @param analysis - PageAnalysis domain entity
 * @returns true if has pagination mechanism, false otherwise
 */
export function hasPaginationMechanism(analysis: PageAnalysis): boolean {
  return analysis.paginationMechanism !== undefined;
}

/**
 * Gets reliability status display text
 *
 * Converts reliability status enum to human-readable text.
 *
 * @param status - ReliabilityStatus enum value
 * @returns Display text for status
 */
export function getReliabilityStatusText(status?: ReliabilityStatus): string {
  if (!status) {
    return 'Unknown';
  }

  switch (status) {
    case ReliabilityStatus.DRAFT:
      return 'Draft';
    case ReliabilityStatus.PENDING_CONFIRMATION:
      return 'Pending Confirmation';
    case ReliabilityStatus.CONFIRMED:
      return 'Confirmed';
    case ReliabilityStatus.REJECTED:
      return 'Rejected';
    default:
      return 'Unknown';
  }
}

/**
 * Gets reliability status color class
 *
 * Returns Tailwind CSS color class for badge styling.
 *
 * @param status - ReliabilityStatus enum value
 * @returns Tailwind color class
 */
export function getReliabilityStatusColor(status?: ReliabilityStatus): string {
  if (!status) {
    return 'gray';
  }

  switch (status) {
    case ReliabilityStatus.DRAFT:
      return 'gray';
    case ReliabilityStatus.PENDING_CONFIRMATION:
      return 'yellow';
    case ReliabilityStatus.CONFIRMED:
      return 'green';
    case ReliabilityStatus.REJECTED:
      return 'red';
    default:
      return 'gray';
  }
}