// server.js
import express from 'express';
const app = express();
import http from 'http';
import { Server } from 'socket.io';
// const http = require('http').createServer(app);
const httpServer = http.createServer(app);
const io = new Server(httpServer);

// 提供静态网页
app.use(express.static('public'));

// 3D 数据生成逻辑
function generate3DData() {
  return {
    vertices: [
      /* 3D 顶点数据 */
    ],
    colors: [
      /* 颜色数据 */
    ],
  };
}
function generate3DData2() {
  // 创建一个包含 1000 个随机点的数组
  const points: any = [];
  for (let i = 0; i < 1000; i++) {
    points.push([Math.random() * 2000 - 1000, Math.random() * 2000 - 1000, Math.random() * 2000 - 1000]);
  }
  return {
    vertices: points,
    colors: points.map(() => [1, 1, 1, 1]),
  };
}

// WebSocket 通信
io.on('connection', (socket) => {
  console.log('客户端已连接');

  // 每帧发送数据 (60fps)
  // const interval = setInterval(() => {
  //   socket.emit('frame', generate3DData());
  // }, 16);
  const interval = setInterval(() => {
    socket.emit('frame', generate3DData());
  }, 2000);
  socket.on('disconnect', () => {
    clearInterval(interval);
  });
});

httpServer.listen(3003, () => {
  console.log('服务已启动: http://localhost:3003');
});