getDeviceInfo: function()

in src/windows/DeviceProxy.js [32:91]
25 lines of code
5 McCabe index (conditional complexity)

    getDeviceInfo: function (win, fail, args) {
        // deviceId aka uuid, stored in Windows.Storage.ApplicationData.current.localSettings.values.deviceId
        var deviceId;
        // get deviceId, or create and store one
        var localSettings = Windows.Storage.ApplicationData.current.localSettings;
        if (localSettings.values.deviceId) {
            deviceId = localSettings.values.deviceId;
        } else {
            // App-specific hardware id could be used as uuid, but it changes if the hardware changes...
            try {
                var ASHWID = Windows.System.Profile.HardwareIdentification.getPackageSpecificToken(null).id;
                deviceId = Windows.Storage.Streams.DataReader.fromBuffer(ASHWID).readGuid();
            } catch (e) {
                // Couldn't get the hardware UUID
                deviceId = createUUID();
            }
            // ...so cache it per-install
            localSettings.values.deviceId = deviceId;
        }

        var userAgent = window.clientInformation.userAgent;
        // this will report "windows" in windows8.1 and windows phone 8.1 apps
        // and "windows8" in windows 8.0 apps similar to cordova.js
        // See https://github.com/apache/cordova-js/blob/master/src/windows/platform.js#L25
        var devicePlatform = userAgent.indexOf('MSAppHost/1.0') === -1 ? 'windows' : 'windows8';
        var versionString = userAgent.match(/Windows (?:Phone |NT )?([0-9.]+)/)[1];

        var deviceInfo = new Windows.Security.ExchangeActiveSyncProvisioning.EasClientDeviceInformation();
        // Running in the Windows Simulator is a remote session.
        // Running in the Windows Phone Emulator has the systemProductName set to "Virtual"
        var isVirtual = Windows.System.RemoteDesktop.InteractiveSession.isRemote || deviceInfo.systemProductName === 'Virtual';
        var manufacturer = deviceInfo.systemManufacturer;
        var model = deviceInfo.systemProductName;

        var Pnp = Windows.Devices.Enumeration.Pnp;

        Pnp.PnpObject.findAllAsync(Pnp.PnpObjectType.device, [DEVICE_DRIVER_VERSION_KEY, DEVICE_CLASS_KEY], ROOT_CONTAINER_QUERY).then(
            function (rootDevices) {
                for (var i = 0; i < rootDevices.length; i++) {
                    var rootDevice = rootDevices[i];
                    if (!rootDevice.properties) continue;
                    if (rootDevice.properties[DEVICE_CLASS_KEY_NO_SEMICOLON] === HAL_DEVICE_CLASS) {
                        versionString = rootDevice.properties[DEVICE_DRIVER_VERSION_KEY];
                        break;
                    }
                }

                setTimeout(function () {
                    win({
                        platform: devicePlatform,
                        version: versionString,
                        uuid: deviceId,
                        isVirtual: isVirtual,
                        model: model,
                        manufacturer: manufacturer
                    });
                }, 0);
            }
        );
    }