Hiweus · August 4, 2023 13:26
diff --git a/index.html b/index.html
 <!DOCTYPE html>
 <html lang="en">
 <head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/leaflet.css"
   integrity="sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY="
   crossorigin=""/>
   <script src="https://unpkg.com/[email protected]/dist/leaflet.js"
   integrity="sha256-20nQCchB9co0qIjJZRGuk2/Z9VM+kNiyxNV1lvTlZBo="
   crossorigin=""></script>

  <style>
    #map {
      height: 500px;
      width: 100%;
    }
  </style>
 </head>
 <body>

  <div id="map"></div>

  <pre id="coord"></pre>
  
 </body>


 <script>

  const coord = document.querySelector('#coord')

  const coordenadaInicial = [-3.182440, -66.369159]
  const map = L.map('map').setView(coordenadaInicial, 13);
  L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
    maxZoom: 19,
    attribution: '© OpenStreetMap'
  }).addTo(map);



  const pontos = [
    coordenadaInicial,
  ]
  const polyline = L.polyline(pontos, {color: 'red'}).addTo(map);

  const eventSource = new EventSource('/?latitude=-3.182440&longitude=-66.369159')

  eventSource.addEventListener('message', event => {
    const data = JSON.parse(event.data)
    console.log('data', data)

    const { latitude, longitude } = data
    pontos.push([latitude, longitude])

    L.marker([latitude, longitude]).addTo(map)

    polyline.setLatLngs(pontos)

    coord.innerHTML = JSON.stringify(pontos, null, 2)
  })



  const iconeIncendio = L.icon({
    iconUrl: 'https://img.freepik.com/free-icon/bonfire_318-655654.jpg?w=360',
    iconSize: [38, 95],
    iconAnchor: [22, 94],
    popupAnchor: [-3, -76],
    shadowSize: [68, 95],
    shadowAnchor: [22, 94]
 });

  eventSource.addEventListener('incendio', event => {
    const data = JSON.parse(event.data)

    const { latitude, longitude } = data

    L.marker([latitude, longitude], {
      icon: iconeIncendio
    }).addTo(map)

    coord.innerHTML = JSON.stringify(pontos, null, 2)
  })
 </script>
 </html>
diff --git a/index.js b/index.js
 import { createServer } from 'node:http'
 import fs from 'node:fs'
 import stream from 'node:stream'

 const server = createServer(async (req, res) => {

  if(req.method === 'OPTIONS') {
    return res.end()
  }

  if(req.url === '/index.html') {
    res.writeHead(200, {
      'Content-Type': 'text/html',
      'Access-Control-Allow-Origin': '*'
    })

    const arquivo = fs.createReadStream('./index.html')
    await stream.promises.pipeline(arquivo, res)
    return
  }

  const params = new URLSearchParams(req.url.slice(2))
  const latitude = +params.get('latitude')
  const longitude = +params.get('longitude')

  if(!latitude || !longitude) {
    res.statusCode = 400
    return res.end('Falta as coordenadas')
  }

  const variacao = 0.01

  res.writeHead(200, {
    'Content-Type': 'text/event-stream',
    'Access-Control-Allow-Origin': '*'
  })


  let novaLatitude = latitude
  let novaLongitude = longitude

  setInterval(() => {
    const variacaoLat = Math.random() > 0.2 ? 1 : -1
    const variacaoLong = Math.random() > 0.8 ? 1 : -1

    novaLatitude += variacao * variacaoLat
    novaLongitude += variacao * variacaoLong

    res.write(`data: ${JSON.stringify({ latitude: +novaLatitude.toFixed(6), longitude: +novaLongitude.toFixed(6)})}\n\n`)
  }, 1000)

  setInterval(() => {
    const variacaoLat = Math.random() > 0.2 ? 1 : -1
    const variacaoLong = Math.random() > 0.8 ? 1 : -1

    res.write(`event: incendio\ndata: ${JSON.stringify({ latitude: +(novaLatitude + variacao * variacaoLat).toFixed(6), longitude: +(novaLongitude + variacao * variacaoLong).toFixed(6)})}\n\n`)
  }, 10000)


 })


 server.listen(3000, () => {
  console.log('Servidor iniciado')
 })
diff --git a/package.json b/package.json
 {
  "name": "demosse",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "type": "module",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC"
 }
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Document</title>
	<link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/leaflet.css"
	integrity="sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY="
	crossorigin=""/>
	<script src="https://unpkg.com/[email protected]/dist/leaflet.js"
	integrity="sha256-20nQCchB9co0qIjJZRGuk2/Z9VM+kNiyxNV1lvTlZBo="
	crossorigin=""></script>

	<style>
	#map {
	height: 500px;
	width: 100%;
	}
	</style>
	</head>
	<body>

	<div id="map"></div>

	<pre id="coord"></pre>

	</body>


	<script>

	const coord = document.querySelector('#coord')

	const coordenadaInicial = [-3.182440, -66.369159]
	const map = L.map('map').setView(coordenadaInicial, 13);
	L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
	maxZoom: 19,
	attribution: '© OpenStreetMap'
	}).addTo(map);



	const pontos = [
	coordenadaInicial,
	]
	const polyline = L.polyline(pontos, {color: 'red'}).addTo(map);

	const eventSource = new EventSource('/?latitude=-3.182440&longitude=-66.369159')

	eventSource.addEventListener('message', event => {
	const data = JSON.parse(event.data)
	console.log('data', data)

	const { latitude, longitude } = data
	pontos.push([latitude, longitude])

	L.marker([latitude, longitude]).addTo(map)

	polyline.setLatLngs(pontos)

	coord.innerHTML = JSON.stringify(pontos, null, 2)
	})



	const iconeIncendio = L.icon({
	iconUrl: 'https://img.freepik.com/free-icon/bonfire_318-655654.jpg?w=360',
	iconSize: [38, 95],
	iconAnchor: [22, 94],
	popupAnchor: [-3, -76],
	shadowSize: [68, 95],
	shadowAnchor: [22, 94]
	});

	eventSource.addEventListener('incendio', event => {
	const data = JSON.parse(event.data)

	const { latitude, longitude } = data

	L.marker([latitude, longitude], {
	icon: iconeIncendio
	}).addTo(map)

	coord.innerHTML = JSON.stringify(pontos, null, 2)
	})
	</script>
	</html>
	import { createServer } from 'node:http'
	import fs from 'node:fs'
	import stream from 'node:stream'

	const server = createServer(async (req, res) => {

	if(req.method === 'OPTIONS') {
	return res.end()
	}

	if(req.url === '/index.html') {
	res.writeHead(200, {
	'Content-Type': 'text/html',
	'Access-Control-Allow-Origin': '*'
	})

	const arquivo = fs.createReadStream('./index.html')
	await stream.promises.pipeline(arquivo, res)
	return
	}

	const params = new URLSearchParams(req.url.slice(2))
	const latitude = +params.get('latitude')
	const longitude = +params.get('longitude')

	if(!latitude \|\| !longitude) {
	res.statusCode = 400
	return res.end('Falta as coordenadas')
	}

	const variacao = 0.01

	res.writeHead(200, {
	'Content-Type': 'text/event-stream',
	'Access-Control-Allow-Origin': '*'
	})


	let novaLatitude = latitude
	let novaLongitude = longitude

	setInterval(() => {
	const variacaoLat = Math.random() > 0.2 ? 1 : -1
	const variacaoLong = Math.random() > 0.8 ? 1 : -1

	novaLatitude += variacao * variacaoLat
	novaLongitude += variacao * variacaoLong

	res.write(`data: ${JSON.stringify({ latitude: +novaLatitude.toFixed(6), longitude: +novaLongitude.toFixed(6)})}\n\n`)
	}, 1000)

	setInterval(() => {
	const variacaoLat = Math.random() > 0.2 ? 1 : -1
	const variacaoLong = Math.random() > 0.8 ? 1 : -1

	res.write(`event: incendio\ndata: ${JSON.stringify({ latitude: +(novaLatitude + variacao * variacaoLat).toFixed(6), longitude: +(novaLongitude + variacao * variacaoLong).toFixed(6)})}\n\n`)
	}, 10000)


	})


	server.listen(3000, () => {
	console.log('Servidor iniciado')
	})
	{
	"name": "demosse",
	"version": "1.0.0",
	"description": "",
	"main": "index.js",
	"type": "module",
	"scripts": {
	"test": "echo \"Error: no test specified\" && exit 1"
	},
	"keywords": [],
	"author": "",
	"license": "ISC"
	}