import { type ClassValue, clsx } from "clsx";
import { twMerge } from "tailwind-merge";

export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs));
}

export function formatDate(date: string | Date): string {
  return new Date(date).toLocaleDateString('en-US', {
    year: 'numeric',
    month: 'long',
    day: 'numeric',
  });
}

export const IUCN_STATUS_COLORS: Record<string, string> = {
  'EX': 'bg-black text-white',       // Extinct
  'EW': 'bg-gray-800 text-white',    // Extinct in the Wild
  'CR': 'bg-red-600 text-white',     // Critically Endangered
  'EN': 'bg-orange-600 text-white',  // Endangered
  'VU': 'bg-yellow-500 text-black',  // Vulnerable
  'NT': 'bg-yellow-300 text-black',  // Near Threatened
  'LC': 'bg-green-500 text-black',   // Least Concern
  'DD': 'bg-gray-500 text-white',    // Data Deficient
  'NE': 'bg-gray-300 text-black',    // Not Evaluated
};

export const IUCN_STATUS_FULL_NAMES: Record<string, string> = {
  'EX': 'Extinct',
  'EW': 'Extinct in the Wild',
  'CR': 'Critically Endangered',
  'EN': 'Endangered',
  'VU': 'Vulnerable',
  'NT': 'Near Threatened',
  'LC': 'Least Concern',
  'DD': 'Data Deficient',
  'NE': 'Not Evaluated',
};

export const CITES_APPENDIX_COLORS: Record<string, string> = {
  'I': 'bg-red-600 text-white',      // Appendix I
  'II': 'bg-blue-600 text-white',    // Appendix II
  'III': 'bg-green-600 text-white',  // Appendix III
};

export function truncateString(str: string, maxLength: number): string {
  if (str.length <= maxLength) return str;
  return str.slice(0, maxLength) + '...';
}