import { ref } from 'vue'
import { newPodApi } from '@/api/user'

// 模块级变量，确保所有组件实例共享同一个定时器状态
let keepAliveTimer = null
const isRunning = ref(false)

export function useKeepAlive() {
  const callKeepAlive = async () => {
    const session = localStorage.getItem('newPodSession')
    if (!session) {
      stopKeepAlive()
      return
    }
    try {
      await newPodApi({
        session: Number(session),
        id: 2,
        call: {
          service: 'rpc',
          method: 'keepAlive'
        },
        params: {
          timeout: 60
        }
      })
    } catch (e) {
      console.error('KeepAlive error:', e)
    }
  }

  const startKeepAlive = () => {
    if (keepAliveTimer) return // 已启动，避免重复

    const session = localStorage.getItem('newPodSession')
    if (!session) return
    isRunning.value = true
    callKeepAlive()
    keepAliveTimer = setInterval(callKeepAlive, 60000)
  }

  const stopKeepAlive = () => {
    if (keepAliveTimer) {
      clearInterval(keepAliveTimer)
      keepAliveTimer = null
    }
    isRunning.value = false
  }

  return {
    isRunning,
    startKeepAlive,
    stopKeepAlive
  }
}