import { STORAGE_KEYS } from './config'

export interface TokenData {
  accessToken: string
  refreshToken: string
  expireTime: number
}

export function getAccessToken(): string {
  return wx.getStorageSync(STORAGE_KEYS.ACCESS_TOKEN) || ''
}

export function getRefreshToken(): string {
  return wx.getStorageSync(STORAGE_KEYS.REFRESH_TOKEN) || ''
}

export function getExpireTime(): number {
  return wx.getStorageSync(STORAGE_KEYS.EXPIRE_TIME) || 0
}

export function setTokens(data: TokenData): void {
  wx.setStorageSync(STORAGE_KEYS.ACCESS_TOKEN, data.accessToken)
  wx.setStorageSync(STORAGE_KEYS.REFRESH_TOKEN, data.refreshToken)
  wx.setStorageSync(STORAGE_KEYS.EXPIRE_TIME, data.expireTime)
}

export function clearTokens(): void {
  wx.removeStorageSync(STORAGE_KEYS.ACCESS_TOKEN)
  wx.removeStorageSync(STORAGE_KEYS.REFRESH_TOKEN)
  wx.removeStorageSync(STORAGE_KEYS.EXPIRE_TIME)
}

export function isLoggedIn(): boolean {
  return !!getAccessToken()
}

// token 过期判定统一由后端 401 驱动，前端不再猜测 expire_time 的单位
// （秒 / 毫秒 / 剩余秒数无法可靠区分，误判会导致不必要的刷新与误踢登录）

export function clearUserInfo(): void {
  wx.removeStorageSync(STORAGE_KEYS.USER_INFO)
}