(function (window, document) {
if (!window.XMPlayer) {
  window.XMPlayer = {};
}
var XMPlayer = window.XMPlayer;
if (!window.XMView) {
  window.XMView = {};
}
var XMView = window.XMView;

function loadXMAndInit(xmdata) {
  if (!XMPlayer.loadXM(xmdata)) {
    return;
  }

  XMView.init();

  var playbutton = document.getElementById("playpause");
  playbutton.innerHTML='Play';
  playbutton.onclick = function() {
    if (XMPlayer.playing) {
      XMPlayer.pauseXM();
      playbutton.innerHTML='Play';
    } else {
      XMPlayer.playXM();
      playbutton.innerHTML='Pause';
    }
  };
  playbutton.disabled = false;

  return XMPlayer.xm;
}

function downloadXM(uri) {
  var xmReq = new XMLHttpRequest();
  xmReq.open("GET", uri, true);
  xmReq.responseType = "arraybuffer";
  xmReq.onload = function (xmEvent) {
    var arrayBuffer = xmReq.response;
    if (arrayBuffer) {
      loadXMAndInit(arrayBuffer);
    } else {
      console.log("unable to load", uri);
    }
  };
  xmReq.send(null);
}

XMPlayer.allowDrop = function(ev) {
  ev.stopPropagation();
  ev.preventDefault();
  var elem = document.getElementById("playercontainer");
  elem.className = (ev.type == "dragover" ? "draghover" : "playercontainer");
  return false;
};

XMPlayer.handleDrop = function(e) {
  console.log(e);
  e.preventDefault();
  var elem = document.getElementById("playercontainer");
  elem.className = "playercontainer";
  var files = e.target.files || e.dataTransfer.files;
  if (files.length < 1) return false;
  var reader = new FileReader();
  reader.onload = function(e) {
    XMPlayer.stopXM();
    loadXMAndInit(e.target.result);
  };
  reader.readAsArrayBuffer(files[0]);
  return false;
};

function initFilelist() {
  var el = document.getElementById('filelist');
  xmuris.forEach(function(entry) {
    var a = document.createElement('a');
    a.text = entry[0];
    a.href = '#'+entry[1];
    a.onclick = function() {
      el.style.display = "none";
      XMPlayer.stopXM();
      downloadXM(baseuri + entry[1]);
    };
    el.appendChild(a);
    el.appendChild(document.createElement('br'));
  });
  var loadbutton = document.getElementById('loadbutton');
  loadbutton.onclick = function() {
    if (el.style.display == "none") {
      el.style.display = "block";
    } else {
      el.style.display = "none";
    }
  };
}

window.onload = function() {
  XMPlayer.initAudio();
  initFilelist();

  var uri = location.hash.substr(1);
  if (uri === "") {
    uri = "kamel.xm";
  }
  if (!uri.startsWith("http")) {
    uri = baseuri + uri;
  }
  downloadXM(uri);
};

})(window, document);