const initListener = []
const authListener = []

export const addInitLinstener = (fn) => {
  initListener.push(fn)
}

export const addAuthLinstener = (fn) => {
  authListener.push(fn)
}

export const notifyInit = async () => {
  initListener.forEach(async (fn) => {
    await fn()
  })
}

export const notifyAuth = async (obj) => {
  authListener.forEach(async (fn) => await fn(obj))
}

// Zustand 中间件，用于订阅前端应用的生命周期，实验阶段
export const lifecycleware = (fn) => (set, get, store) => {

  addInitLinstener(() => {
    if (store.getState().hasOwnProperty('onInit')) {
      store.getState().onInit()
    } else {
      console.info('store has no function: onInit.')
    }
  })

  addAuthLinstener(() => {
    if (store.getState().hasOwnProperty('onAuth')) {
      store.getState().onAuth()
    } else {
      console.info('store has no function: onAuth.')
    }
  })

  return fn(set, get, store)
}