'use strict';

const electron = require('electron');
const app = electron.app;  // Module to control application life.
const BrowserWindow = electron.BrowserWindow;
const nativeImage = electron.nativeImage;

const notifier = require('node-notifier');
const util = require('util');
const dialog = electron.dialog;
const Menu = require('menu');
const Tray = require('tray');
const shell = require('shell');
const os = require('os');
const childProcess = require('child_process');
const path = require('path');
const fs = require('fs-extra');
const Tail = require('always-tail');
const http = require('http');
const zlib = require('zlib');
const tar = require('tar-fs');

const request = require('request');
const progress = require('request-progress');
const osHomeDir = require('os-homedir');

const updater = require('./modules/hf-updater.js');

const Config = require('./modules/config').Config;

const hfprocess = require('./modules/hf-process.js');
const Process = hfprocess.Process;
const ACMonitorProcess = hfprocess.ACMonitorProcess;
const ProcessStates = hfprocess.ProcessStates;
const ProcessGroup = hfprocess.ProcessGroup;
const ProcessGroupStates = hfprocess.ProcessGroupStates;

const osType = os.type();

const appIcon = path.join(__dirname, '../resources/console.png');

const DELETE_LOG_FILES_OLDER_THAN_X_SECONDS = 60 * 60 * 24 * 7; // 7 Days
const LOG_FILE_REGEX = /(domain-server|ac-monitor|ac)-.*-std(out|err).txt/;

const HOME_CONTENT_URL = "http://cachefly.highfidelity.com/home-tutorial-release-5572.tar.gz";

function getBuildInfo() {
    var buildInfoPath = null;

    if (osType == 'Windows_NT') {
        buildInfoPath = path.join(path.dirname(process.execPath), 'build-info.json');
    } else if (osType == 'Darwin') {
        var contentPath = ".app/Contents/";
        var contentEndIndex = __dirname.indexOf(contentPath);

        if (contentEndIndex != -1) {
            // this is an app bundle
            var appPath = __dirname.substring(0, contentEndIndex) + ".app";
            buildInfoPath = path.join(appPath, "/Contents/Resources/build-info.json");
        }
    }

    const DEFAULT_BUILD_INFO = { releaseType: "", buildIdentifier: "dev" };
    var buildInfo = DEFAULT_BUILD_INFO;

    if (buildInfoPath) {
        try {
            buildInfo = JSON.parse(fs.readFileSync(buildInfoPath));
        } catch (e) {
            buildInfo = DEFAULT_BUILD_INFO;
        }
    }

    return buildInfo;
}
const buildInfo = getBuildInfo();

function getRootHifiDataDirectory() {
    var organization = "High Fidelity";
    if (buildInfo.releaseType != "PRODUCTION") {
        organization += ' - ' + buildInfo.buildIdentifier;
    }
    if (osType == 'Windows_NT') {
        return path.resolve(osHomeDir(), 'AppData/Roaming', organization);
    } else if (osType == 'Darwin') {
        return path.resolve(osHomeDir(), 'Library/Application Support', organization);
    } else {
        return path.resolve(osHomeDir(), '.local/share/', organization);
    }
}

function getDomainServerClientResourcesDirectory() {
    return path.join(getRootHifiDataDirectory(), '/domain-server');
}

function getAssignmentClientResourcesDirectory() {
    return path.join(getRootHifiDataDirectory(), '/assignment-client');
}

function getApplicationDataDirectory() {
    return path.join(getRootHifiDataDirectory(), '/Server Console');
}

// Configure log
global.log = require('electron-log');
const logFile = getApplicationDataDirectory() + '/log.txt';
fs.ensureFileSync(logFile); // Ensure file exists
log.transports.file.maxSize = 5 * 1024 * 1024;
log.transports.file.file = logFile;

log.debug("build info", buildInfo);
log.debug("Root hifi directory is: ", getRootHifiDataDirectory());

const ipcMain = electron.ipcMain;


var isShuttingDown = false;
function shutdown() {
    log.debug("Normal shutdown (isShuttingDown: " + isShuttingDown +  ")");
    if (!isShuttingDown) {
        // if the home server is running, show a prompt before quit to ask if the user is sure
        if (homeServer.state == ProcessGroupStates.STARTED) {
            log.debug("Showing shutdown dialog.");
            dialog.showMessageBox({
                type: 'question',
                buttons: ['Yes', 'No'],
                title: 'Stopping High Fidelity Sandbox',
                message: 'Quitting will stop your Sandbox and your Home domain will no longer be running.\nDo you wish to continue?'
            }, shutdownCallback);
        } else {
            shutdownCallback(0);
        }

    }
}

function forcedShutdown() {
    log.debug("Forced shutdown (isShuttingDown: " + isShuttingDown +  ")");
    if (!isShuttingDown) {
        shutdownCallback(0);
    }
}

function shutdownCallback(idx) {
    log.debug("Entering shutdown callback.");
    if (idx == 0 && !isShuttingDown) {
        isShuttingDown = true;

        log.debug("Saving user config");
        userConfig.save(configPath);

        if (logWindow) {
            log.debug("Closing log window");
            logWindow.close();
        }
        if (homeServer) {
            log.debug("Stoping home server");
            homeServer.stop();
        }

        updateTrayMenu(homeServer.state);

        if (homeServer.state == ProcessGroupStates.STOPPED) {
            // if the home server is already down, take down the server console now
            log.debug("Quitting.");
            app.exit(0);
        } else {
            // if the home server is still running, wait until we get a state change or timeout
            // before quitting the app
            log.debug("Server still shutting down. Waiting");
            var timeoutID = setTimeout(function() {
                app.exit(0);
            }, 5000);
            homeServer.on('state-update', function(processGroup) {
                if (processGroup.state == ProcessGroupStates.STOPPED) {
                    clearTimeout(timeoutID);
                    log.debug("Quitting.");
                    app.exit(0);
                }
            });
        }
    }
}

function deleteOldFiles(directoryPath, maxAgeInSeconds, filenameRegex) {
    log.debug("Deleting old log files in " + directoryPath);

    var filenames = [];
    try {
        filenames = fs.readdirSync(directoryPath);
    } catch (e) {
        log.warn("Error reading contents of log file directory", e);
        return;
    }

    for (const filename of filenames) {
        log.debug("Checking", filename);
        const absolutePath = path.join(directoryPath, filename);
        var stat = null;
        try {
            stat = fs.statSync(absolutePath);
        } catch (e) {
            log.debug("Error stat'ing file", absolutePath, e);
            continue;
        }
        const curTime = Date.now();
        if (stat.isFile() && filename.search(filenameRegex) >= 0) {
            const ageInSeconds = (curTime - stat.mtime.getTime()) / 1000.0;
            if (ageInSeconds >= maxAgeInSeconds) {
                log.debug("\tDeleting:", filename, ageInSeconds);
                try {
                    fs.unlinkSync(absolutePath);
                } catch (e) {
                    if (e.code != 'EBUSY') {
                        log.warn("\tError deleting:", e);
                    }
                }
            }
        }
    }
}

var logPath = path.join(getApplicationDataDirectory(), '/logs');

log.debug("Log directory:", logPath);
log.debug("Data directory:", getRootHifiDataDirectory());

const configPath = path.join(getApplicationDataDirectory(), 'config.json');
var userConfig = new Config();
userConfig.load(configPath);

// print out uncaught exceptions in the console
process.on('uncaughtException', function(err) {
    log.error(err);
    log.error(err.stack);
});

var shouldQuit = app.makeSingleInstance(function(commandLine, workingDirectory) {
    // Someone tried to run a second instance, focus the window (if there is one)
    return true;
});

if (shouldQuit) {
    log.warn("Another instance of the Sandbox is already running - this instance will quit.");
    app.exit(0);
    return;
}

// Check command line arguments to see how to find binaries
var argv = require('yargs').argv;

var pathFinder = require('./modules/path-finder.js');

var interfacePath = null;
var dsPath = null;
var acPath = null;

var debug = argv.debug;

var binaryType = argv.binaryType;

interfacePath = pathFinder.discoveredPath("Interface", binaryType, buildInfo.releaseType);
dsPath = pathFinder.discoveredPath("domain-server", binaryType, buildInfo.releaseType);
acPath = pathFinder.discoveredPath("assignment-client", binaryType, buildInfo.releaseType);

function binaryMissingMessage(displayName, executableName, required) {
    var message = "The " + displayName + " executable was not found.\n";

    if (required) {
        message += "It is required for the High Fidelity Sandbox to run.\n\n";
    } else {
        message += "\n";
    }

    if (debug) {
        message += "Please ensure there is a compiled " + displayName + " in a folder named build in this checkout.\n\n";
        message += "It was expected to be found at one of the following paths:\n";

        var paths = pathFinder.searchPaths(executableName, argv.localReleaseBuilds);
        message += paths.join("\n");
    } else {
        message += "It is expected to be found beside this executable.\n";
        message += "You may need to re-install the High Fidelity Sandbox.";
    }

    return message;
}

// if at this point any of the paths are null, we're missing something we wanted to find

if (!dsPath) {
    dialog.showErrorBox("Domain Server Not Found", binaryMissingMessage("domain-server", "domain-server", true));
    app.exit(0);
}

if (!acPath) {
    dialog.showErrorBox("Assignment Client Not Found", binaryMissingMessage("assignment-client", "assignment-client", true));
    app.exit(0);
}

function openFileBrowser(path) {
    // Add quotes around path
    path = '"' + path + '"';
    if (osType == "Windows_NT") {
        childProcess.exec('start "" ' + path);
    } else if (osType == "Darwin") {
        childProcess.exec('open ' + path);
    } else if (osType == "Linux") {
        childProcess.exec('xdg-open ' + path);
    }
}

function openLogDirectory() {
    openFileBrowser(logPath);
}

// NOTE: this looks like it does nothing, but it's very important.
// Without it the default behaviour is to quit the app once all windows closed
// which is absolutely not what we want for a taskbar application.
app.on('window-all-closed', function() {
});

function startInterface(url) {
    var argArray = [];

    // check if we have a url parameter to include
    if (url) {
        argArray = ["--url", url];
    }

    // create a new Interface instance - Interface makes sure only one is running at a time
    var pInterface = new Process('interface', interfacePath, argArray);
    pInterface.start();
}

var tray = null;
global.homeServer = null;
global.domainServer = null;
global.acMonitor = null;
global.userConfig = userConfig;
global.openLogDirectory = openLogDirectory;

var LogWindow = function(ac, ds) {
    this.ac = ac;
    this.ds = ds;
    this.window = null;
    this.acMonitor = null;
    this.dsMonitor = null;
}
LogWindow.prototype = {
    open: function() {
        if (this.window) {
            this.window.show();
            this.window.restore();
            return;
        }
        // Create the browser window.
        this.window = new BrowserWindow({ width: 700, height: 500, icon: appIcon });
        this.window.loadURL('file://' + __dirname + '/log.html');

        if (!debug) {
            this.window.setMenu(null);
        }

        this.window.on('closed', function() {
            this.window = null;
        }.bind(this));
    },
    close: function() {
        if (this.window) {
            this.window.close();
        }
    }
};

function goHomeClicked() {
    if (interfacePath) {
        startInterface('hifi://localhost');
    } else {
        // show an error to say that we can't go home without an interface instance
        dialog.showErrorBox("Client Not Found", binaryMissingMessage("High Fidelity client", "Interface", false));
    }
}

var logWindow = null;

var labels = {
    serverState: {
        label: 'Server - Stopped',
        enabled: false
    },
    version: {
        label: 'Version - ' + buildInfo.buildIdentifier,
        enabled: false
    },
    restart: {
        label: 'Start Server',
        click: function() {
            homeServer.restart();
        }
    },
    stopServer: {
        label: 'Stop Server',
        visible: false,
        click: function() {
            homeServer.stop();
        }
    },
    goHome: {
        label: 'Go Home',
        click: goHomeClicked,
        enabled: false
    },
    quit: {
        label: 'Quit',
        accelerator: 'Command+Q',
        click: function() {
            shutdown();
        }
    },
    settings: {
        label: 'Settings',
        click: function() {
            shell.openExternal('http://localhost:40100/settings');
        },
        enabled: false
    },
    viewLogs: {
        label: 'View Logs',
        click: function() {
            logWindow.open();
        }
    },
    restoreBackup: {
        label: 'Restore Backup Instructions',
        click: function() {
            var folder = getRootHifiDataDirectory() + "/Server Backup";
            openBackupInstructions(folder);
        }
    },
    share: {
        label: 'Share',
        click: function() {
            shell.openExternal('http://localhost:40100/settings/?action=share')
        }
    },
    shuttingDown: {
        label: "Shutting down...",
        enabled: false
    },
}

var separator = {
    type: 'separator'
};


function buildMenuArray(serverState) {

    updateLabels(serverState);

    var menuArray = [];

    if (isShuttingDown) {
        menuArray.push(labels.shuttingDown);
    } else {
        menuArray.push(labels.serverState);
        menuArray.push(labels.version);
        menuArray.push(separator);
        menuArray.push(labels.goHome);
        menuArray.push(separator);
        menuArray.push(labels.restart);
        menuArray.push(labels.stopServer);
        menuArray.push(labels.settings);
        menuArray.push(labels.viewLogs);
        menuArray.push(labels.restoreBackup);
        menuArray.push(separator);
        menuArray.push(labels.share);
        menuArray.push(separator);
        menuArray.push(labels.quit);
    }


    return menuArray;

}

function updateLabels(serverState) {

    // update the tray menu state
    var running = serverState == ProcessGroupStates.STARTED;
    labels.goHome.enabled = running;
    labels.stopServer.visible = running;
    labels.settings.enabled = running;
    if (serverState == ProcessGroupStates.STARTED) {
        labels.serverState.label = "Server - Started";
        labels.restart.label = "Restart Server";
    } else if (serverState == ProcessGroupStates.STOPPED) {
        labels.serverState.label = "Server - Stopped";
        labels.restart.label = "Start Server";
        labels.restart.enabled = true;
    } else if (serverState == ProcessGroupStates.STOPPING) {
        labels.serverState.label = "Server - Stopping";
        labels.restart.label = "Restart Server";
        labels.restart.enabled = false;
    }
}

function updateTrayMenu(serverState) {
    if (tray) {
        var menuArray = buildMenuArray(isShuttingDown ? null : serverState);
        tray.setImage(trayIcons[serverState]);
        tray.setContextMenu(Menu.buildFromTemplate(menuArray));
        if (isShuttingDown) {
            tray.setToolTip('High Fidelity - Shutting Down');
        }
    }
}

const httpStatusPort = 60332;

function backupResourceDirectories(folder) {
    try {
        fs.mkdirSync(folder);
        log.debug("Created directory " + folder);

        var dsBackup = path.join(folder, '/domain-server');
        var acBackup = path.join(folder, '/assignment-client');

        fs.copySync(getDomainServerClientResourcesDirectory(), dsBackup);
        fs.copySync(getAssignmentClientResourcesDirectory(), acBackup);

        fs.removeSync(getDomainServerClientResourcesDirectory());
        fs.removeSync(getAssignmentClientResourcesDirectory());

        return true;
    } catch (e) {
        log.debug(e);
        return false;
    }
}

function openBackupInstructions(folder) {
    // Explain user how to restore server
    var window = new BrowserWindow({
        icon: appIcon,
        width: 800,
        height: 520,
    });
    window.loadURL('file://' + __dirname + '/content-update.html');
    if (!debug) {
        window.setMenu(null);
    }
    window.show();

    electron.ipcMain.on('setSize', function(event, obj) {
        window.setSize(obj.width, obj.height);
    });
    electron.ipcMain.on('ready', function() {
        log.debug("got ready");
        window.webContents.send('update', folder);
    });
}
function backupResourceDirectoriesAndRestart() {
    homeServer.stop();

    var folder = getRootHifiDataDirectory() + "/Server Backup - " + Date.now();
    if (backupResourceDirectories(folder)) {
        maybeInstallDefaultContentSet(onContentLoaded);
        openBackupInstructions(folder);
    } else {
        dialog.showMessageBox({
            type: 'warning',
            buttons: ['Ok'],
            title: 'Update Error',
            message: 'There was an error updating the content, aborting.'
        }, function() {});
    }
}

function checkNewContent() {
    if (argv.noUpdater) {
      return;
    }
    
    // Start downloading content set
    var req = request.head({
        url: HOME_CONTENT_URL
    }, function (error, response, body) {
        if (error === null) {
            var localContent = Date.parse(userConfig.get('homeContentLastModified'));
            var remoteContent = Date.parse(response.headers['last-modified']);

            var shouldUpdate = isNaN(localContent) || (!isNaN(remoteContent) && (remoteContent > localContent));

            var wantDebug = false;
            if (wantDebug) {
                log.debug('Last Modified: ' + response.headers['last-modified']);
                log.debug(localContent + " " + remoteContent + " " + shouldUpdate + " " + new Date());
                log.debug("Remote content is " + (shouldUpdate ? "newer" : "older") + " that local content.");
            }

            if (shouldUpdate) {
              dialog.showMessageBox({
                  type: 'question',
                  buttons: ['Yes', 'No'],
                  defaultId: 1,
                  cancelId: 1,
                  title: 'New home content',
                  message: 'A newer version of the home content set is available.\nDo you wish to update?',
                  noLink: true,
              }, function(idx) {
                  if (idx === 0) {
                      dialog.showMessageBox({
                          type: 'warning',
                          buttons: ['Yes', 'No'],
                          defaultId: 1,
                          cancelId: 1,
                          title: 'Are you sure?',
                          message: 'Updating with the new content will remove all your current content and settings and place them in a backup folder.\nAre you sure?',
                          noLink: true,
                      }, function(idx) {
                          if (idx === 0) {
                              backupResourceDirectoriesAndRestart();
                          }
                      });
                  } else {
                      // They don't want to update, mark content set as current
                      userConfig.set('homeContentLastModified', new Date());
                      userConfig.save(configPath);
                  }
              });
            }
        }
    });
}


function maybeInstallDefaultContentSet(onComplete) {
    // Check for existing data
    const acResourceDirectory = getAssignmentClientResourcesDirectory();

    log.debug("Checking for existence of " + acResourceDirectory);

    var userHasExistingACData = true;
    try {
        fs.accessSync(acResourceDirectory);
        log.debug("Found directory " + acResourceDirectory);
    } catch (e) {
        log.debug(e);
        userHasExistingACData = false;
    }

    const dsResourceDirectory = getDomainServerClientResourcesDirectory();

    log.debug("checking for existence of " + dsResourceDirectory);

    var userHasExistingDSData = true;
    try {
        fs.accessSync(dsResourceDirectory);
        log.debug("Found directory " + dsResourceDirectory);
    } catch (e) {
        log.debug(e);
        userHasExistingDSData = false;
    }

    if (userHasExistingACData || userHasExistingDSData) {
        log.debug("User has existing data, suppressing downloader");
        onComplete();

        checkNewContent();
        return;
    }

    log.debug("Found contentPath:" + argv.contentPath);
    if (argv.contentPath) {
        fs.copy(argv.contentPath, getRootHifiDataDirectory(), function (err) {
            if (err) {
                log.debug('Could not copy home content: ' + err);
                return log.error(err)
            }
            log.debug('Copied home content over to: ' + getRootHifiDataDirectory());
            userConfig.set('homeContentLastModified', new Date());
            userConfig.save(configPath);
            onComplete();
        });
        return;
    }


    // Show popup
    var window = new BrowserWindow({
        icon: appIcon,
        width: 640,
        height: 480,
        center: true,
        frame: true,
        useContentSize: true,
        resizable: false
    });
    window.loadURL('file://' + __dirname + '/downloader.html');
    if (!debug) {
        window.setMenu(null);
    }
    window.show();

    window.on('closed', onComplete);

    electron.ipcMain.on('ready', function() {
        log.debug("got ready");
        var currentState = '';

        function sendStateUpdate(state, args) {
            // log.debug(state, window, args);
            window.webContents.send('update', { state: state, args: args });
            currentState = state;
        }

        var aborted = false;

        // Start downloading content set
        var req = progress(request.get({
            url: HOME_CONTENT_URL
        }, function(error, responseMessage, responseData) {
            if (aborted) {
                return;
            } else if (error || responseMessage.statusCode != 200) {
                var message = '';
                if (error) {
                    message = "Error contacting resource server.";
                } else {
                    message = "Error downloading resources from server.";
                }
                sendStateUpdate('error', {
                    message: message
                });
            }
        }), { throttle: 250 }).on('progress', function(state) {
            if (!aborted) {
                // Update progress popup
                sendStateUpdate('downloading', state);
            }
        }).on('end', function(){
            sendStateUpdate('installing');
        });

        function extractError(err) {
            log.debug("Aborting request because gunzip/untar failed");
            aborted = true;
            req.abort();
            log.debug("ERROR" +  err);

            sendStateUpdate('error', {
                message: "Error installing resources."
            });
        }

        var gunzip = zlib.createGunzip();
        gunzip.on('error', extractError);

        req.pipe(gunzip).pipe(tar.extract(getRootHifiDataDirectory())).on('error', extractError).on('finish', function(){
            // response and decompression complete, return
            log.debug("Finished unarchiving home content set");
            userConfig.set('homeContentLastModified', new Date());
            userConfig.save(configPath);
            sendStateUpdate('complete');
        });

        window.on('closed', function() {
            if (currentState == 'downloading') {
                req.abort();
            }
        });

        userConfig.set('hasRun', true);
        userConfig.save(configPath);
    });
}

function maybeShowSplash() {
    var suppressSplash = userConfig.get('doNotShowSplash', false);

    if (!suppressSplash) {
        const zoomFactor = 0.8;
        var window = new BrowserWindow({
            icon: appIcon,
            width: 1600 * zoomFactor,
            height: 650 * zoomFactor,
            center: true,
            frame: true,
            useContentSize: true,
            zoomFactor: zoomFactor,
            resizable: false
        });
        window.loadURL('file://' + __dirname + '/splash.html');
        if (!debug) {
            window.setMenu(null);
        }
        window.show();

        window.webContents.on('new-window', function(e, url) {
            e.preventDefault();
            require('shell').openExternal(url);
        });
    }
}


const trayIconOS = (osType == "Darwin") ? "osx" : "win";
var trayIcons = {};
trayIcons[ProcessGroupStates.STARTED] = "console-tray-" + trayIconOS + ".png";
trayIcons[ProcessGroupStates.STOPPED] = "console-tray-" + trayIconOS + "-stopped.png";
trayIcons[ProcessGroupStates.STOPPING] = "console-tray-" + trayIconOS + "-stopping.png";
for (var key in trayIcons) {
    var fullPath = path.join(__dirname, '../resources/' + trayIcons[key]);
    var img = nativeImage.createFromPath(fullPath);
    img.setTemplateImage(osType == 'Darwin');
    trayIcons[key] = img;
}


const notificationIcon = path.join(__dirname, '../resources/console-notification.png');

function onContentLoaded() {
    // Disable splash window for now.
    // maybeShowSplash();

    if (buildInfo.releaseType == 'PRODUCTION' && !argv.noUpdater) {
        var currentVersion = null;
        try {
            currentVersion = parseInt(buildInfo.buildIdentifier);
        } catch (e) {
        }

        if (currentVersion !== null) {
            const CHECK_FOR_UPDATES_INTERVAL_SECONDS = 60 * 30;
            var hasShownUpdateNotification = false;
            const updateChecker = new updater.UpdateChecker(currentVersion, CHECK_FOR_UPDATES_INTERVAL_SECONDS);
            updateChecker.on('update-available', function(latestVersion, url) {
                if (!hasShownUpdateNotification) {
                    notifier.notify({
                        icon: notificationIcon,
                        title: 'An update is available!',
                        message: 'High Fidelity version ' + latestVersion + ' is available',
                        wait: true,
                        url: url
                    });
                    hasShownUpdateNotification = true;
                }
            });
            notifier.on('click', function(notifierObject, options) {
                log.debug("Got click", options.url);
                shell.openExternal(options.url);
            });
        }
    }

    deleteOldFiles(logPath, DELETE_LOG_FILES_OLDER_THAN_X_SECONDS, LOG_FILE_REGEX);

    if (dsPath && acPath) {
        domainServer = new Process('domain-server', dsPath, ["--get-temp-name"], logPath);
        acMonitor = new ACMonitorProcess('ac-monitor', acPath, ['-n6',
                                                                '--log-directory', logPath,
                                                                '--http-status-port', httpStatusPort], httpStatusPort, logPath);
        homeServer = new ProcessGroup('home', [domainServer, acMonitor]);
        logWindow = new LogWindow(acMonitor, domainServer);

        var processes = {
            home: homeServer
        };

        // handle process updates
        homeServer.on('state-update', function(processGroup) { updateTrayMenu(processGroup.state); });

        // start the home server
        homeServer.start();
    }

    // If we were launched with the launchInterface option, then we need to launch interface now
    if (argv.launchInterface) {
        log.debug("Interface launch requested... argv.launchInterface:", argv.launchInterface);
        startInterface();
    }

    // If we were launched with the shutdownWatcher option, then we need to watch for the interface app
    // shutting down. The interface app will regularly update a running state file which we will check.
    // If the file doesn't exist or stops updating for a significant amount of time, we will shut down.
    if (argv.shutdownWatcher) {
        log.debug("Shutdown watcher requested... argv.shutdownWatcher:", argv.shutdownWatcher);
        var MAX_TIME_SINCE_EDIT = 5000; // 5 seconds between updates
        var firstAttemptToCheck = new Date().getTime();
        var shutdownWatchInterval = setInterval(function(){
            var stats = fs.stat(argv.shutdownWatcher, function(err, stats) {
                if (err) {
                    var sinceFirstCheck = new Date().getTime() - firstAttemptToCheck;
                    if (sinceFirstCheck > MAX_TIME_SINCE_EDIT) {
                        log.debug("Running state file is missing, assume interface has shutdown... shutting down snadbox.");
                        forcedShutdown();
                        clearTimeout(shutdownWatchInterval);
                    }
                } else {
                    var sinceEdit = new Date().getTime() - stats.mtime.getTime();
                    if (sinceEdit > MAX_TIME_SINCE_EDIT) {
                        log.debug("Running state of interface hasn't updated in MAX time... shutting down.");
                        forcedShutdown();
                        clearTimeout(shutdownWatchInterval);
                    }
                }
            });
        }, 1000);
    }
}


// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
app.on('ready', function() {

    if (app.dock) {
        // hide the dock icon on OS X
        app.dock.hide();
    }

    // Create tray icon
    tray = new Tray(trayIcons[ProcessGroupStates.STOPPED]);
    tray.setToolTip('High Fidelity Sandbox');

    tray.on('click', function() {
        tray.popUpContextMenu(tray.menu);
    });

    updateTrayMenu(ProcessGroupStates.STOPPED);

    maybeInstallDefaultContentSet(onContentLoaded);
});