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

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

export function formatPriceHT(value: number | null | undefined): string {
  if (value === null || value === undefined || Number.isNaN(value)) return "—";
  return new Intl.NumberFormat("fr-FR", {
    style: "currency",
    currency: "EUR",
  }).format(value);
}

export function formatPriceTTC(value: number | null | undefined): string {
  if (value === null || value === undefined || Number.isNaN(value)) return "—";
  return new Intl.NumberFormat("fr-FR", {
    style: "currency",
    currency: "EUR",
  }).format(value);
}

export function generateOrderNumber(seq: number): string {
  const year = new Date().getFullYear();
  return `MCB-${year}-${String(seq).padStart(4, "0")}`;
}