var socket = io.connect();
var ua = navigator.userAgent.toLowerCase();
var isAndroid = ua.indexOf("android") > -1; //&& ua.indexOf("mobile");
if (isAndroid) {
  var constraints = { video: { width: 800, height: 800 } };

  navigator.mediaDevices.getUserMedia(constraints)
    .then(function (mediaStream) {
      var video = document.querySelector('video');
      video.srcObject = mediaStream;
      video.onloadedmetadata = function (e) {
        video.play();
      };
    })
    .catch(function (err) { console.log(err.name + ": " + err.message); });
} else {
  function openQRCamera(node) {
    var reader = new FileReader();
    reader.onload = function () {
      node.value = "";
      qrcode.callback = function (res) {
        if (res instanceof Error) {
          alert("No QR code found. Please make sure the QR code is within the cameras frame and try again.");
        } else {
          // node.parentNode.previousElementSibling.value = res;
          // document.write(res);
          if (!isNaN(res)) {
            socket.emit('joining', { hostid: res, joinid: document.getElementById("userid").innerHTML });
            window.location.replace("http://168.63.72.72:8080/game/" + res + "/" + document.getElementById("userid").innerHTML);
          } else {
            document.getElementById("error").innerHTML = "This QR Code doesn't exist!";
          }
        }
      };
      qrcode.decode(reader.result);
    };
    reader.readAsDataURL(node.files[0]);
  }
}