courseTask.js

var sleep = (t) => new Promise((y) => setTimeout(y, t));
var Net = require("./net.js");
var chapterTask = require("./chapterTask.js");
var Course = require("./course.js");
var { LiveContainer, LiveArea } = require("clui-live");

class courseTask {
  constructor(courses, user, speed, autotest) {
    this.taskend = false;
    this.user = user;
    this.speed = speed;
    this.current = undefined;
    this.courses = courses;
    this.autotest = autotest;

    setInterval(() => {
      this.drawGUI();
    }, 1000);
    this.eventLoop();
  }
  async init() {
    console.log("\n".repeat(30)); //清屏

    this.gui = new LiveContainer();
    this.gui_area = this.gui.createLiveArea();
  }
  async drawGUI() {
    if (!this.current) return;

    let nextcourse = this.courses[0];

    let minheight = 30;

    let lines = this.current.getGUI();
    lines.unshift(
      "当前课程:" +
        (this.current_course ? this.current_course.title : "无") +
        " 下一个课程:" +
        (nextcourse ? nextcourse.title : "无") +
        "\n"
    );

    if (lines.length < minheight)
      for (let i = 0; i < minheight - lines.length; i++) lines.push("");

    //for(let i in lines)
    //		this.gui_area.write(lines.join("\n"));
    console.log(lines.join("\n"));
  }
  async doTick() {
    let course = this.courses.shift();
    if (!course) {
      this.taskend = true;
      return;
    }

    let cs = new Course(course.clazzId, course.courseId, this.user);

    let cps = await cs.getChapters();
    //		console.log(course,cps);

    let task = new chapterTask(
      course.clazzId,
      cps,
      this.user,
      this.speed,
      this.autotest
    );
    this.current_course = course;
    this.current = task;
    await task.wait();
  }
  async wait(timeout) {
    let tick = 0;
    if (!timeout) timeout = 9999999;
    while (true) {
      if (this.taskend) return;

      if (tick++ > timeout) return;
      await sleep(500);
    }
  }

  async eventLoop() {
    await this.init();
    while (!this.taskend) {
      try {
        await this.doTick();
      } catch (e) {
        console.log(e);
      }
      await sleep(1000);
    }
  }
}

module.exports = courseTask;