class IframeRouteManager {
  constructor() {
    this.iframeRoutes = []
  }
  static getInstance() {
    if (!IframeRouteManager.instance) {
      IframeRouteManager.instance = new IframeRouteManager()
    }
    return IframeRouteManager.instance
  }
  /**
   * 添加 iframe 路由
   */
  add(route) {
    if (!this.iframeRoutes.find((r) => r.path === route.path)) {
      this.iframeRoutes.push(route)
    }
  }
  /**
   * 获取所有 iframe 路由
   */
  getAll() {
    return this.iframeRoutes
  }
  /**
   * 根据路径查找 iframe 路由
   */
  findByPath(path) {
    return this.iframeRoutes.find((route) => route.path === path)
  }
  /**
   * 清空所有 iframe 路由
   */
  clear() {
    this.iframeRoutes = []
  }
  /**
   * 保存到 sessionStorage
   */
  save() {
    if (this.iframeRoutes.length > 0) {
      sessionStorage.setItem('iframeRoutes', JSON.stringify(this.iframeRoutes))
    }
  }
  /**
   * 从 sessionStorage 加载
   */
  load() {
    try {
      const data = sessionStorage.getItem('iframeRoutes')
      if (data) {
        this.iframeRoutes = JSON.parse(data)
      }
    } catch (error) {
      console.error('[IframeRouteManager] 加载 iframe 路由失败:', error)
      this.iframeRoutes = []
    }
  }
}

IframeRouteManager.instance = null

export { IframeRouteManager }