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

/**
 * Merge Tailwind class names safely (handles conditional + conflicting classes).
 */
export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs));
}

/** Format a number as currency (default: USD). */
export function formatCurrency(value: number, currency = "USD") {
  return new Intl.NumberFormat("en-US", {
    style: "currency",
    currency,
  }).format(value);
}

/** Format a date into a readable short form. */
export function formatDate(date: Date | string) {
  return new Intl.DateTimeFormat("en-US", {
    day: "2-digit",
    month: "short",
    year: "numeric",
  }).format(new Date(date));
}