const TokenKey = 'Htjc-Admin-Token'
const ExpiresInKey = 'Htjc-Admin-Expires-In'

// 集成商平台把假登录态写在同一个地址的 Admin-Token 里。
// 不能再读取或迁移这个名字，否则会把 auto-login-mock-token 复制到我们自己的登录态。
const REJECTED_TOKENS = ['auto-login-mock-token']

function readValid(key) {
  const value = localStorage.getItem(key)
  if (!value || REJECTED_TOKENS.indexOf(value) !== -1) {
    if (value) localStorage.removeItem(key)
    return null
  }
  return value
}

export function getToken() {
  return readValid(TokenKey)
}

export function setToken(token) {
  if (!token || REJECTED_TOKENS.indexOf(token) !== -1) {
    localStorage.removeItem(TokenKey)
    return
  }
  return localStorage.setItem(TokenKey, token)
}

export function removeToken() {
  return localStorage.removeItem(TokenKey)
}

export function setExpiresIn(time) {
  return localStorage.setItem(ExpiresInKey, time)
}

export function getExpiresIn() {
  return readValid(ExpiresInKey)
}