import { computed, onUnmounted, ref } from 'vue'

import dayjs from 'dayjs'
import duration from 'dayjs/plugin/duration'
import { onUnload } from '@dcloudio/uni-app'
import { toDouble } from '@/utils/common'
import { useServiceStore } from '@/store/modules/service'

dayjs.extend(duration)

export interface INextNode {
  countDownInSeconds: string
  firstAidId: number
  nextStepCode: string
  nextStepName: string
  nextStepType: string // 0 仅显示 1 弹窗询问是否进入下个环节
}

export function useNextNode() {
  const serviceStore = useServiceStore()
  const nextNode = ref<null | INextNode>(null)
  const currentFirstAidId = computed(() => serviceStore.currentFirstAidId)
  let timer: number

  async function getNextNode() {
    if (!currentFirstAidId.value) {
      uni.$u.toast('没有急救id信息')
      return
    }
    try {
      nextNode.value = await uni.$u.api.getNextNode(currentFirstAidId.value)
    } catch (error) {
      nextNode.value = null
      uni.$u.alertError(error)
    }
  }

  // 距下一个节点的剩余时间
  const leftTime = computed(() => {
    const res = { hours: '00', minutes: '00', seconds: '' }
    if (!nextNode.value?.countDownInSeconds) return res

    const totalSeconds = Number(nextNode.value.countDownInSeconds)
    res.seconds = toDouble(dayjs.duration(totalSeconds).seconds())
    res.minutes = toDouble(dayjs.duration(totalSeconds).minutes())
    res.hours = toDouble(dayjs.duration(totalSeconds).hours())

    return res
  })

  // 循环查下个节点
  function intervalGetNextCode() {
    getNextNode()
    timer && clearInterval(timer)
    timer = setInterval(() => {
      getNextNode()
    }, 1000)
  }

  onUnmounted(() => {
    console.log('on unmounted')

    timer && clearInterval(timer)
    timer = 0
  })

  onUnload(() => {
    console.log('on unload')
    timer && clearInterval(timer)
    timer = 0
  })
  return { nextNode, getNextNode, intervalGetNextCode, leftTime }
}