import Prompt from '@system.prompt'

const TAG = 'SURENJUN_JUDGE'

interface DelayConfig{
  isDelay: boolean
  delayTime?: number
}

interface QUEUE {
  fn: Function,
  delayConfig?: DelayConfig
}

type GoTask = (currentTask:QUEUE)=>Promise<boolean>

export default class JudgeTask {
  private queue?:QUEUE[] = []
  private status: string

  constructor() {
    this.queue = []
    this.status = 'end'
  }

  //执行任务
  goTask:GoTask = async (currentTask:QUEUE) => {
    const fn = currentTask.fn;
    const delayConfig = currentTask.delayConfig || {isDelay:false,delayTime:1000}
    const isDelay = delayConfig.isDelay
    const delayTime = delayConfig.delayTime

    return false
  }

  executeQueue = async () => {
    const queue = this.queue;
    const executeQueue = this.executeQueue
    if (queue.length) {
      for (const currentTask of queue) {
        await this.goTask(currentTask)
        this.queue.shift()
        await executeQueue()
      }
    } else {
      this.status = 'end'
    }
  }

  addTask = async (fn:Function, delayConfig?: DelayConfig) => {
    this.queue.push({
      fn, delayConfig
    });
    if (this.status == 'end' && this.queue.length === 1) {
      await this.executeQueue();
    }
  }
}