Janady13/llms-txt-hub / apps/web/lib/utils.ts

Source identity

Field	Recorded value
Source type	GitHub source
Original record	Janady13/llms-txt-hub / apps/web/lib/utils.ts
Date	Not specified in source
Repository	Janady13/llms-txt-hub
Revision	e0f4bf978d4df168369c7601d9c5f5ea89e84377
Branch	main
Path or archive member	apps/web/lib/utils.ts
Original SHA-256	8c88e591e1047199fb5d07857c5917fa1b6871103465815a1dcd51aaa8f52b07
Git blob SHA	5657ceab41ef1943e9d68f3daf93101e84c66bb3
Reading-copy SHA-256	8c88e591e1047199fb5d07857c5917fa1b6871103465815a1dcd51aaa8f52b07

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import { type ClassValue, clsx } from 'clsx'
import { format, formatDistanceToNow } from 'date-fns'
import { twMerge } from 'tailwind-merge'

/**
 * Combines class names using clsx and tailwind-merge
 */
export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs))
}

/**
 * Format a date string to a human-readable format
 */
export function formatDate(dateString: string): string {
  const date = new Date(dateString)
  if (Number.isNaN(date.getTime())) {
    return 'Invalid date'
  }
  return format(date, 'MMMM d, yyyy')
}

/**
 * Formats a date string to human-readable relative time using formatDistanceToNow.
 * Returns 'Invalid date' for invalid input, preserving the current behavior.
 *
 * @param dateString - String representation of a date
 * @returns string - Human-readable relative time (e.g., "2 days ago") or 'Invalid date' for invalid input
 */
export function formatRelativeDate(dateString: string): string {
  const date = new Date(dateString)
  if (Number.isNaN(date.getTime())) {
    return 'Invalid date'
  }
  return formatDistanceToNow(date, { addSuffix: true })
}

/**
 * Extracts the hostname from a URL string, removing the 'www.' prefix if present.
 * Returns an empty string for invalid URLs or parse failures.
 *
 * @param url - The input URL or string to parse
 * @returns string - The extracted domain (without 'www.') or empty string on parse failure
 */
export function extractDomain(url: string): string {
  try {
    const urlObj = new URL(url)
    return urlObj.hostname.replace('www.', '')
  } catch {
    return ''
  }
}

/**
 * Strips HTML tags from a string to create safe plain text
 * Useful for sanitizing descriptions that may contain raw HTML
 *
 * @param html - The HTML string to sanitize
 * @returns Plain text with HTML tags removed
 */
export function stripHtmlTags(html: string | null | undefined): string {
  if (!html) return ''
  return html.replace(/<[^>]*>/g, '').trim()
}

// Server-only utilities have been moved to lib/server-utils.ts
// This file should only contain isomorphic utilities that work on both client and server