Move to npm for development and packaging

I had to hack the package.json to force `electron-prebuilt` to use a 32-bit binary - everything else should be fairly out of the box

index.js

@@ -0,0 +1,178 @@
+var app = require('app');  // Module to control application life.
+var ipc = require('ipc');
+var fs = require('fs');
+var os = require('os');
+var dialog = require('dialog');
+var BrowserWindow = require('browser-window');
+
+var mainWindow = null;
+
+app.commandLine.appendSwitch('--enable-npapi');
+
+// this should be placed at top of main.js to handle setup events quickly
+if (handleSquirrelEvent()) {
+  // squirrel event handled and app will exit in 1000ms, so don't do anything else
+  return;
+}
+
+function handleSquirrelEvent() {
+  "use strict"
+
+  if (process.argv.length === 1) {
+    return false;
+  }
+
+  const ChildProcess = require('child_process');
+  const path = require('path');
+
+  const appFolder = path.resolve(process.execPath, '..');
+  const rootAtomFolder = path.resolve(appFolder, '..');
+  const updateDotExe = path.resolve(path.join(rootAtomFolder, 'Update.exe'));
+  const exeName = path.basename(process.execPath);
+
+  const spawn = function(command, args) {
+    let spawnedProcess, error;
+
+    try {
+      spawnedProcess = ChildProcess.spawn(command, args, {detached: true});
+    } catch (error) {}
+
+    return spawnedProcess;
+  };
+
+  const spawnUpdate = function(args) {
+    return spawn(updateDotExe, args);
+  };
+
+  const squirrelEvent = process.argv[1];
+  switch (squirrelEvent) {
+    case '--squirrel-install':
+    case '--squirrel-updated':
+      // Optionally do things such as:
+      // - Add your .exe to the PATH
+      // - Write to the registry for things like file associations and
+      //   explorer context menus
+
+      // Install desktop and start menu shortcuts
+      spawnUpdate(['--createShortcut', exeName]);
+
+      setTimeout(app.quit, 1000);
+      return true;
+
+    case '--squirrel-uninstall':
+      // Undo anything you did in the --squirrel-install and
+      // --squirrel-updated handlers
+
+      // Remove desktop and start menu shortcuts
+      spawnUpdate(['--removeShortcut', exeName]);
+
+      setTimeout(app.quit, 1000);
+      return true;
+
+    case '--squirrel-obsolete':
+      // This is called on the outgoing version of your app before
+      // we update to the new version - it's the opposite of
+      // --squirrel-updated
+
+      app.quit();
+      return true;
+  }
+};
+
+// Node version is too old to have a built-in function
+function copyFile(src, dst) {
+  fs.createReadStream(src).pipe(fs.createWriteStream(dst));
+}
+
+function initialSetup() {
+  // Display a small window to inform the user that the app is working
+  setupWindow = new BrowserWindow({width: 275, height: 450, resizable: false, center:true, frame:false});
+  setupWindow.loadUrl('file://' + __dirname + '/initialsetup.html');
+  // Exec installUnity.bat and wait for it to finish.
+  var child = require('child_process').spawn('cmd.exe', ['/c', 'utils\\installUnity.bat']);
+  child.on('exit', function() {
+    console.log("Unity installed.");
+    // Copy over files with default values
+    copyFile(__dirname+"\\defaults\\config.json", app.getPath('userData')+"\\config.json");
+    copyFile(__dirname+"\\default\\servers.json", app.getPath('userData')+"\\servers.json");
+    copyFile(__dirname+"\\default\\versions.json", app.getPath('userData')+"\\versions.json");
+    console.log("JSON files copied.");
+    setupWindow.destroy();
+    showMainWindow();
+  })
+}
+
+ipc.on("exit", function(id) {
+  mainWindow.destroy();
+});
+
+// Quit when all windows are closed.
+app.on('window-all-closed', function() {
+  if (process.platform != 'darwin')
+    app.quit();
+});
+
+app.on('ready', function() {
+
+  // Check just in case the user forgot to extract the zip.
+  zip_check = app.getPath('exe').includes(os.tmpdir());
+  if (zip_check) {
+    errormsg = 
+    ("It has been detected that OpenFusionClient is running from the TEMP folder.\n\n"+
+      "Please extract the entire Client folder to a location of your choice before starting OpenFusionClient.");
+    dialog.showErrorBox("Error!", errormsg);
+    return;
+  }
+
+  // Create the browser window.
+  mainWindow = new BrowserWindow({width: 1280, height: 720, show: false, "web-preferences": {"plugins": true}});
+  mainWindow.setMinimumSize(640, 480);
+
+  // Check for first run
+  try {
+    if (!fs.existsSync(app.getPath('userData')+"\\config.json")) {
+      console.log("Config file not found. Running initial setup.");
+      initialSetup();
+    } else {
+      showMainWindow();
+    }
+  } catch(e) {
+    console.log("An error occurred while checking for the config.");
+  }
+
+  // Makes it so external links are opened in the system browser, not Electron
+  mainWindow.webContents.on('new-window', function(e, url) {
+    e.preventDefault();
+    require('shell').openExternal(url);
+  });
+
+  mainWindow.on('closed', function() {
+    mainWindow = null;
+  });
+});
+
+function showMainWindow() {
+  // and load the index.html of the app.
+  mainWindow.loadUrl('file://' + __dirname + '/index.html');
+
+  // Reduces white flash when opening the program
+  // Eliminating it entirely requires a newer Electron ver :(
+  mainWindow.webContents.on('did-finish-load', function() {
+    mainWindow.show();
+    mainWindow.webContents.executeJavaScript("loadConfig();");
+    mainWindow.webContents.executeJavaScript("loadGameVersions();");
+    mainWindow.webContents.executeJavaScript("loadServerList();");
+  });
+
+  mainWindow.webContents.on('plugin-crashed', function() {
+    console.log("Unity Web Player crashed.");
+  });
+
+  mainWindow.webContents.on('will-navigate', function(evt, url) {
+    evt.preventDefault();
+    console.log(url);
+  });
+
+  //mainWindow.webContents.openDevTools()  
+}
+