/**
 * 补全 URL 协议头，防止无效跳转
 */
export function formatUrl(url) {
  if (!url || typeof url !== 'string') return '#'
  if (url.startsWith('http://') || url.startsWith('https://')) return url
  return `http://${url}`
}

/**
 * 将日期字符串或时间戳转换为 YYYY-MM-DD 格式
 */
export function formatDate(time) {
  if (!time || time === '0') return '-'

  if (typeof time === 'string' && time.includes('-')) {
    return time.slice(0, 10)
  }

  const timestamp = Number(time)
  if (!isNaN(timestamp) && timestamp > 0) {
    const date = new Date(timestamp > 9999999999 ? timestamp : timestamp * 1000)
    if (!isNaN(date.getTime())) {
      const y = date.getFullYear()
      const m = (date.getMonth() + 1).toString().padStart(2, '0')
      const d = date.getDate().toString().padStart(2, '0')
      return `${y}-${m}-${d}`
    }
  }

  return '-'
}

/**
 * 将时间转换为 MM-DD HH:mm 格式
 */
export function formatDateTime(time) {
  if (!time) return '-'
  if (typeof time === 'string' && time.includes('-')) return time

  const date = new Date(time)
  if (isNaN(date.getTime())) return '-'

  const m = (date.getMonth() + 1).toString().padStart(2, '0')
  const d = date.getDate().toString().padStart(2, '0')
  const h = date.getHours().toString().padStart(2, '0')
  const i = date.getMinutes().toString().padStart(2, '0')
  return `${m}-${d} ${h}:${i}`
}