// Heavily-modified version of the xash.html set-up script
//  from Xash3d-Emscripten

var statusElement = document.getElementById('status');
var progressElement = document.getElementById('progress');
var asyncDialog = document.getElementById('asyncDialog');
var myerrorbuf = ''
var myerrordate = new Date();
var mounted = false;
var gamedir = 'valve';
var moduleCount = 0;
//var mem = 150;
var mfs;
var zipSize;
var modPackage;

// // make BrowserFS to work on ES5 browsers
// if (!ArrayBuffer['isView']) {
// 	ArrayBuffer.isView = function(a) {
// 		return a !== null && typeof(a) === "object" && a['buffer'] instanceof ArrayBuffer;
// 	};

// }

// showElement('optionsTitle', false);

// function prepareSelects()
// {
//   var len = zipMods.length;
//   var select = document.getElementById('selectZip');
//   if( len )
//   {
//     showElement('zipHider', true);

//     if(len > 1)
//     {
//       var links = '';
//       for(var i = 0; i < len; i++)
//       {
//         select.options[i] = new Option(zipMods[i][1], zipMods[i][0]);
//         links += '<br><a href="'+zipMods[i][0]+'">'+zipMods[i][1]+'</a>';
//       }
//       select.style.display = 'block';
//       document.getElementById('linksPlaceholder').innerHTML += links;
//       showElement('linksPlaceholder', true);
//     }
//   }
//   else
//     document.getElementById('rZip').checked = false;
//   len = pkgMods.length;
//   select = document.getElementById('selectPkg');
//   if( len )
//   {
//     showElement('pkgHider', true);

//     if(len > 1)
//     {
//       for(var i = 0; i < len; i++)
//         select.options[i] = new Option(pkgMods[i][1], pkgMods[i][0]);
//       select.style.display = 'block';
//     }
//   }
//   else
//     document.getElementById('rPackage').checked = false;

//   if( !zipMods.length && !len )
//   {
//     document.getElementById('rLocalZip').checked = true;
//     showElement('rLocalZip', false);
//   }
// }

try{mem = Math.round(window.location.hash.substring(1));}catch(e){};

function wrapPrint(func) {
  return (...args) => {
    if(args.length > 0)
      instance.console[func](...args)
  }
}

var Module = {
  TOTAL_MEMORY: mem * 1024 * 1024,
  preRun: [],
  postRun: [],
  // print: (function() {
  //   var element = document.getElementById('output');
  //   if (element) element.value = ''; // clear browser cache
  //   return function(text) {
  //     if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
  //     // These replacements are necessary if you render to raw HTML
  //     //text = text.replace(/&/g, "&amp;");
  //     //text = text.replace(/</g, "&lt;");
  //     //text = text.replace(/>/g, "&gt;");
  //     //text = text.replace('\n', '<br>', 'g');
  //     //console.log(text);
  //     if(text)
  //       myerrorbuf += text + '\n';
  //     if (element) {
  //       if(element.value.length > 65536)
  //         element.value = element.value.substring(512) + myerrorbuf;
  //       else
  //         element.value += myerrorbuf;
  //       element.scrollTop = element.scrollHeight; // focus on bottom
  //     }
  //     myerrorbuf = ''
  //   };
  // })(),
  print: wrapPrint('log'),
  // printErr: function(text) {
  //   if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
  //   if (0) { // XXX disabled for safety typeof dump == 'function') {
  //     dump(text + '\n'); // fast, straight to the real console
  //   } else {
  //     if( myerrorbuf.length > 2048 )
  //     myerrorbuf = 'some lines skipped\n'+ myerrorbuf.substring(512);
  //     myerrorbuf += text + '\n';
  //     if(  new Date() - myerrordate > 3000 )
  //     {
  //       myerrordate = new Date();
  //       Module.print();
  //     }
  //   }
  // },
  printErr: wrapPrint('error'),
  canvas: (function() {
    var canvas = document.getElementById('canvas');

    // As a default initial behavior, pop up an alert when webgl context is lost. To make your
    // application robust, you may want to override this behavior before shipping!
    // See http://www.khronos.org/registry/webgl/specs/latest/1.0/#5.15.2
    canvas.addEventListener("webglcontextlost", function(e) { alert('WebGL context lost. You will need to reload the page.'); e.preventDefault(); }, false);

    return canvas;
  })(),
  setStatus: function(text) {
    if (!Module.setStatus.last) Module.setStatus.last = { time: Date.now(), text: '' };
    if (text === Module.setStatus.text) return;
    if(  new Date() - myerrordate > 3000 )
    {
      myerrordate = new Date();
      Module.print();
    }

    statusElement.innerHTML = text;
    if( progressElement )
    {
      var m = text.match(/([^(]+)\((\d+(\.\d+)?)\/(\d+)\)/);

      if(m)
      {
        var progress = Math.round(parseInt(m[2])*100/parseInt(m[4]));
        progressElement.style.color = progress > 5?'#303030':'#aaa000';
        progressElement.style.width = progressElement.innerHTML = ''+progress+'%';
      }
      showElement('progress1', !!m);
    }
  },
  totalDependencies: 0,
  monitorRunDependencies: function(left) {
    this.totalDependencies = Math.max(this.totalDependencies, left);
    if(left)
      Module.setStatus('Preparing... (' + (this.totalDependencies-left) + '/' + this.totalDependencies + ')');
  },
  // Added:
  //   This is needed for it to load the package's data from a URI
  //   https://emscripten.org/docs/porting/files/packaging_files.html#changing-the-data-file-location
  locateFile(dataName) {
    return instance.import[dataName] || modPackage.getURL(dataName)
  }
  //
};

function syncFS() {
  FS.syncfs(false, function(err) {
    instance.emulatedIDB.sync()
    Module.print('Saving IDBFS' + err ? `: ${err}` : '')
  })
}

window.onerror = function(event) {
  if(mounted) {
    // console.error('Errored: ', event)
    syncFS()
  } if( (''+event).indexOf('SimulateInfiniteLoop') > 0 )
    return;
  var text = 'Exception thrown: ' + event;
  text = text.replace(/&/g, "&amp;");
  text = text.replace(/</g, "&lt;");
  text = text.replace(/>/g, "&gt;");
  text = text.replace('\n', '<br>', 'g');
  Module.setStatus(text);
  Module.print('Exception thrown: ' + event);
};

function haltRun()
{
}

var savedRun;

function radioChecked(id)
{
  var r = document.getElementById('r'+id);
  if(r) return r.checked;
  return false;
}

function showElement(id, show)
{
  var e = document.getElementById(id);
  if(!e) return;
  e.style.display=show?'block':'none';
}

Module.setStatus('Downloading...');

function startXash()
{
  // showElement('loader1', false);
  // showElement('optionsTitle', false);
  // showElement('fSettings', false);
  setupFS();
  Module.arguments = instance.arguments;
  Module.run = run = savedRun;
  // if( radioChecked('Zip') )
  //   fetchZIP(zipMods.length>1?document.getElementById('selectZip').value:zipMods[0][0], savedRun);
  // else if( (!zipMods.length && !pkgMods.length) || radioChecked('LocalZip') )
  // {
  // var reader = new FileReader();
  //   reader.onload = function(){
  //     mountZIP(reader.result);
  //     Module.print("Loaded zip data");
  //     savedRun();
  //   };
  //   reader.readAsArrayBuffer(document.getElementById('iZipFile').files[0]);
  // }
  // else if( radioChecked('Package') )
  // {
    var script = document.createElement('script');
    script.onload = savedRun;
    document.body.appendChild(script);
    // script.src = pkgMods.length>1?document.getElementById('selectPkg').value:pkgMods[0][0];
  // }

  instance.package.then(data => {
    console.log('Loading package...')
    modPackage = data
    script.src = modPackage.getURL(modPackage.manifest.entry)
    console.log('PAYLOAD: ', script.src)
  })

  showElement('canvas', true);

  window.addEventListener("beforeunload", function (e) {
    var confirmationMessage = 'Leave the game?';

    (e || window.event).returnValue = confirmationMessage; //Gecko + IE
    return confirmationMessage; //Gecko + Webkit, Safari, Chrome etc.
  });

  // Added
  document.addEventListener("onkeydown", function (e) {
    e = e || window.event;//Get event

    if (!e.ctrlKey) return;

    var code = e.which || e.keyCode;//Get key code

    switch (code) {
        case 83://Block Ctrl+S
        case 87://Block Ctrl+W -- Not work in Chrome and new Firefox
            e.preventDefault();
            e.stopPropagation();
            break;
    }
  })

  if(instance.app.config.pauseOnLostFocus)
    document.addEventListener('mouseleave', function(event) {
      console.log('aaa')
      canvas.dispatchEvent(new KeyboardEvent({ key: 'Esc' }))
    })
}

// function mountZIP(data)
// {
//   var Buffer = BrowserFS.BFSRequire('buffer').Buffer;
//   mfs.mount('/zip', new BrowserFS.FileSystem.ZipFS(Buffer.from(data)));
//   FS.mount(new BrowserFS.EmscriptenFS(), {root:'/zip'}, '/rodir');
// }

// function fetchZIP(packageName, cb)
// {
//   var xhr = new XMLHttpRequest();
//   xhr.open('GET', packageName, true);
//   xhr.responseType = 'arraybuffer';

//   xhr.onprogress = function(event) {
//     var url = packageName;
//     var size;
//     if (event.total) size = event.total;
//     else size = zipMods[document.getElementById('selectZip').selectedIndex][2];
//     if (event.loaded) {
//       var total = size;
//       var loaded = event.loaded;
//       var num = 0;
//       if (Module['setStatus']) Module['setStatus']('Downloading data... (' + loaded + '/' + total + ')');
//     } else if (!Module.dataFileDownloads) {
//       if (Module['setStatus']) Module['setStatus']('Downloading data...');
//     }
//   };
//   xhr.onerror = function(event) {
//     throw new Error("NetworkError");
//   }
//   xhr.onload = function(event) {
//     if (xhr.status == 200 || xhr.status == 304 || xhr.status == 206 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
//       mountZIP(xhr.response);
//       cb();
//     } else {
//       throw new Error(xhr.statusText + " : " + xhr.responseURL);
//     }
//   };
//   xhr.send(null);
// }

let localForageOperations = []

function setupFS()
{
  //  TODO: Determined by the new "mod id"
  let fsPath = '/' + modPackage.manifest.id

  FS.mkdir('/rodir');
  FS.mkdir(fsPath);

  instance.emulatedIDB.patch(IDBFS)

  FS.mount(IDBFS, {}, fsPath);
  FS.syncfs(true, function(err) {
    if(err)
      Module.print('Loading IDBFS: ' + err)
  })
  mounted = true;

  FS.chdir(fsPath);
}

function skipRun()
{
  savedRun = run;
  Module.run = haltRun;
  run = haltRun;

  Module.setStatus("Engine downloaded!");
  // showElement('loader1', false);
  // showElement('optionsTitle', true);

  // if(window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB)
  //   showElement('idbHider', true);
  // prepareSelects();
  // showElement('fSettings',true);

  ENV.XASH3D_GAMEDIR = gamedir;
  ENV.XASH3D_RODIR = '/rodir'

  function loadModule(name)
  {
    var script = document.createElement('script');
    script.onload = function() {
      moduleCount++
      
      if(moduleCount == 3) {
        Module.setStatus("Scripts downloaded!")
        // We'll now wanna start xash right away
        startXash()
      }
    }
    document.body.appendChild(script);
    // script.src = name + ".js";
    script.src = instance.import[name + '.js']
  }

  loadModule("server");
  loadModule("client");
  loadModule("menu");
};

Module.preInit = [skipRun];
Module.websocket = [];
Module.websocket.url = 'wsproxy://the-swank.pp.ua:3000/'
ENV = [];

loadingDone()