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

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

export function formatDuration(ms: number): string {
  if (ms < 1000) return `${ms}ms`;
  if (ms < 60000) return `${(ms / 1000).toFixed(1)}s`;
  if (ms < 3600000) return `${(ms / 60000).toFixed(1)}m`;
  return `${(ms / 3600000).toFixed(1)}h`;
}

export function truncate(str: string, length: number): string {
  if (str.length <= length) return str;
  return `${str.slice(0, length)}...`;
}

export function formatRelativeTime(timestamp: number): string {
  const now = Date.now();
  const diff = now - timestamp;

  if (diff < 60000) return `${Math.floor(diff / 1000)}s ago`;
  if (diff < 3600000) return `${Math.floor(diff / 60000)}m ago`;
  if (diff < 86400000) return `${Math.floor(diff / 3600000)}h ago`;
  return `${Math.floor(diff / 86400000)}d ago`;
}

export function formatAbsoluteTime(timestamp: number): string {
  const date = new Date(timestamp);
  return date.toLocaleString(undefined, {
    month: "short",
    day: "numeric",
    hour: "2-digit",
    minute: "2-digit",
    second: "2-digit",
  });
}