/**
 * 格式化工具函数
 */

export const formatDuration = (seconds: number): string => {
  const m = Math.floor(seconds / 60)
  const s = Math.floor(seconds % 60)
  return `${m.toString().padStart(2, "0")}:${s.toString().padStart(2, "0")}`
}

export const formatFileSize = (bytes: number): string => {
  if (bytes < 1024) return `${bytes} B`
  if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`
  return `${(bytes / (1024 * 1024)).toFixed(1)} MB`
}

export const formatDate = (iso: string): string =>
  new Date(iso).toLocaleDateString("zh-CN", {
    year: "numeric",
    month: "2-digit",
    day: "2-digit",
  })