// 格式化日期
const formatDate = (date, format = 'YYYY-MM-DD HH:mm') => {
  if (!date) return ''
  const d = new Date(date)
  const year = d.getFullYear()
  const month = String(d.getMonth() + 1).padStart(2, '0')
  const day = String(d.getDate()).padStart(2, '0')
  const hour = String(d.getHours()).padStart(2, '0')
  const minute = String(d.getMinutes()).padStart(2, '0')
  const second = String(d.getSeconds()).padStart(2, '0')

  return format
    .replace('YYYY', year)
    .replace('MM', month)
    .replace('DD', day)
    .replace('HH', hour)
    .replace('mm', minute)
    .replace('ss', second)
}

// 等级名称
const levelNames = {
  1: '新锐',
  2: '精锐',
  3: '高手',
  4: '大师',
  5: '宗师'
}

const getLevelName = (level) => levelNames[level] || '未知'

// 等级描述
const levelDescs = {
  1: '掌握基础动作，能进行多拍回合。',
  2: '技术较全面，具备初步的战术意识。',
  3: '技术稳定，战术意图清晰，比赛经验丰富。',
  4: '在俱乐部内属顶尖战力，具备较强掌控力。',
  5: '技术全面，战术素养高，是俱乐部标杆。'
}

const getLevelDesc = (level) => levelDescs[level] || ''

// 比赛状态
const matchStatusTexts = {
  0: '待开始',
  1: '进行中',
  2: '已结束',
  3: '已取消'
}

const getMatchStatusText = (status) => matchStatusTexts[status] || '未知'

// 订单状态
const orderStatusTexts = {
  0: '待核销',
  1: '已完成',
  2: '已取消'
}

const getOrderStatusText = (status) => orderStatusTexts[status] || '未知'

// 生成随机字符串
const randomString = (len = 16) => {
  const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
  let result = ''
  for (let i = 0; i < len; i++) {
    result += chars.charAt(Math.floor(Math.random() * chars.length))
  }
  return result
}

module.exports = {
  formatDate,
  getLevelName,
  getLevelDesc,
  getMatchStatusText,
  getOrderStatusText,
  randomString
}