/// <summary>
/// Sets color and temperature for a bulb and uses a transition time to the provided state
/// </summary>
/// <param name="bulb">Light bulb</param>
/// <param name="hue">0..65535</param>
/// <param name="saturation">0..65535</param>
/// <param name="brightness">0..65535</param>
/// <param name="kelvin">2700..9000</param>
/// <param name="transitionDuration"></param>
/// <returns></returns>
public async Task SetColorAsync(LightBulb bulb,
UInt16 hue,
UInt16 saturation,
UInt16 brightness,
UInt16 kelvin,
TimeSpan transitionDuration)
{
if (transitionDuration.TotalMilliseconds > UInt32.MaxValue ||
transitionDuration.Ticks < 0)
{
throw new ArgumentOutOfRangeException("transitionDuration");
}
if (kelvin < 2500 || kelvin > 9000)
{
throw new ArgumentOutOfRangeException("kelvin", "Kelvin must be between 2500 and 9000");
}
System.Diagnostics.Debug.WriteLine("Setting color to {0}", bulb.Endpoint);
UInt32 duration = (UInt32)transitionDuration.TotalMilliseconds;
var payload = new LightSetColorRequest(hue, saturation, brightness, kelvin, duration);
var message = LifxMessage.CreateTargeted(payload, (uint)randomizer.Next(), false, true, 0, bulb.MacAddress, bulb.SendClient);
var response = await _client.SendMessage(message, bulb.Endpoint);
}
/// <summary>
/// Sets the device power state
/// </summary>
public async Task SetDevicePowerStateAsync(Device device, bool isOn)
{
System.Diagnostics.Debug.WriteLine("Sending TurnDeviceOff to {0}", device.Endpoint);
var payload = new DeviceSetPowerRequest(isOn);
var message = LifxMessage.CreateTargeted(payload, (uint)randomizer.Next(), false, true, 0, device.MacAddress, device.SendClient);
await _client.SendMessage(message, device.Endpoint);
}
public void SendMessage(IUdpClient udpClient, LifxMessage message, IPEndPoint endpoint)
{
using (var memoryStream = new MemoryStream())
{
message.WriteToStream(memoryStream);
byte[] packet = memoryStream.ToArray();
udpClient.SendAsync(packet, packet.Length, endpoint.Address.ToString(), endpoint.Port);
}
}
/// <summary>
/// Gets the current power state for a light bulb
/// </summary>
/// <param name="bulb"></param>
/// <returns></returns>
public async Task <bool> GetLightPowerAsync(LightBulb bulb)
{
var payload = new LightGetPowerRequest();
var message = LifxMessage.CreateTargeted(payload, (uint)randomizer.Next(), true, false, 0, bulb.MacAddress, bulb.SendClient);
var response = await _client.SendMessage(message, bulb.Endpoint);
return((response.Message.Payload is LightPowerResponse power) ? power.IsOn : throw new InvalidOperationException("wrong response"));
}
/// <summary>
/// Sets the label on the device
/// </summary>
public async Task SetDeviceLabelAsync(Device device, string label)
{
System.Diagnostics.Debug.WriteLine("Sending SetDeviceLabelAsync to {0}", device.Endpoint);
var payload = new DeviceSetLabelRequest(label);
var message = LifxMessage.CreateTargeted(payload, (uint)randomizer.Next(), false, true, 0, device.MacAddress, device.SendClient);
await _client.SendMessage(message, device.Endpoint);
}
/// <summary>
/// Gets the device's host firmware
/// </summary>
public async Task <FirmwareVersion> GetDeviceHostFirmwareAsync(Device device)
{
System.Diagnostics.Debug.WriteLine("Sending GetDeviceHostFirmware to {0}", device.Endpoint);
var payload = new DeviceGetHostFirmware();
var message = LifxMessage.CreateTargeted(payload, (uint)randomizer.Next(), true, false, 0, device.MacAddress, device.SendClient);
var response = await _client.SendMessage(message, device.Endpoint);
return((response.Message.Payload is StateHostFirmwareResponse versionResponse) ? new FirmwareVersion(versionResponse) : throw new InvalidOperationException("wrong response"));
}
/// <summary>
/// Gets the label for the device
/// </summary>
public async Task <string> GetDeviceLabelAsync(Device device)
{
System.Diagnostics.Debug.WriteLine("Sending GetDeviceLabel to {0}", device.Endpoint);
var payload = new DeviceGetLabelRequest();
var message = LifxMessage.CreateTargeted(payload, (uint)randomizer.Next(), true, false, 0, device.MacAddress, device.SendClient);
var response = await _client.SendMessage(message, device.Endpoint);
return((response.Message.Payload is StateLabelResponse label) ? label.Label : throw new InvalidOperationException("wrong response"));
}
private async Task SetLightPowerAsync(LightBulb bulb, TimeSpan transitionDuration, bool isOn)
{
if (bulb == null)
{
throw new ArgumentNullException("bulb");
}
if (transitionDuration.TotalMilliseconds > UInt32.MaxValue ||
transitionDuration.Ticks < 0)
{
throw new ArgumentOutOfRangeException("transitionDuration");
}
var payload = new LightSetPowerRequest(isOn, (UInt32)transitionDuration.TotalMilliseconds);
var message = LifxMessage.CreateTargeted(payload, (uint)randomizer.Next(), false, true, 0, bulb.MacAddress, bulb.SendClient);
var response = await _client.SendMessage(message, bulb.Endpoint);
}
internal static LifxMessage FromPacket(byte[] data, IUdpClient respondClient)
{
using (MemoryStream ms = new MemoryStream(data))
{
var headerBytes = new byte[36];
Array.Copy(data, headerBytes, headerBytes.Length);
var header = LifxHeader.FromHeaderBytes(headerBytes);
byte[] payload = null;
if (data.Length > 36)
{
payload = new byte[data.Length - 36];
Array.Copy(data, 36, payload, 0, payload.Length);
}
return(LifxMessage.FromPayloadBytes(header, payload, respondClient));
}
}
/// <summary>
/// Begins searching for bulbs.
/// </summary>
/// <seealso cref="DeviceDiscovered"/>
/// <seealso cref="DeviceLost"/>
/// <seealso cref="StopDeviceDiscovery"/>
public void StartDeviceDiscovery()
{
if (_DiscoverCancellationSource != null && !_DiscoverCancellationSource.IsCancellationRequested)
{
return;
}
_DiscoverCancellationSource = new CancellationTokenSource();
var token = _DiscoverCancellationSource.Token;
var source = discoverSourceID = (uint)randomizer.Next(int.MaxValue);
_client.UnhandledMessage += (o, e) => ProcessDeviceDiscoveryMessage(e.RemoteEndpoint, e.Message);
//Start discovery thread
Task.Run(async() =>
{
while (!token.IsCancellationRequested)
{
try
{
System.Diagnostics.Debug.WriteLine("Sending GetServices");
var message = LifxMessage.CreateBroadcast(new GetServiceRequest(), source, true, false, 0);
_client.BroadcastMessage(message);
}
catch { }
await Task.Delay(5000);
var lostDevices = devices.Where(d => (DateTime.UtcNow - d.LastSeen).TotalMinutes > 5).ToArray();
if (lostDevices.Any())
{
foreach (var device in lostDevices)
{
devices.Remove(device);
DiscoveredBulbs.Remove(device.MacAddressName);
if (DeviceLost != null)
{
DeviceLost(this, new DeviceDiscoveryEventArgs()
{
Device = device
});
}
}
}
}
});
}
private void ProcessDeviceDiscoveryMessage(IPEndPoint remoteEndpoint, LifxMessage msg)
{
string id = msg.Header.FrameAddress.TargetMacAddressName; //remoteAddress.ToString()
if (DiscoveredBulbs.ContainsKey(id)) //already discovered
{
DiscoveredBulbs[id].LastSeen = DateTime.UtcNow; //Update datestamp
DiscoveredBulbs[id].Endpoint = remoteEndpoint;
return;
}
if (msg.Header.Frame.SourceIdentifier != discoverSourceID || //did we request the discovery?
_DiscoverCancellationSource == null ||
_DiscoverCancellationSource.IsCancellationRequested) //did we cancel discovery?
{
return;
}
if (!(msg.Payload is StateServiceResponse stateServiceResponse))
{
return; // not the message we were expecting
}
var device = new LightBulb()
{
Endpoint = remoteEndpoint,
Service = stateServiceResponse.Service,
LastSeen = DateTime.UtcNow,
MacAddress = msg.Header.FrameAddress.TargetMacAddress,
SendClient = msg.RespondClient,
};
DiscoveredBulbs[id] = device;
devices.Add(device);
DeviceDiscovered?.Invoke(this, new DeviceDiscoveryEventArgs()
{
Device = device
});
}
public async Task <LifxResponse> ReceiveMessage(IUdpClient udpClient)
{
var response = await udpClient.ReceiveAsync();
return(new LifxResponse(LifxMessage.FromPacket(response.ReceiveResult.Buffer, response.SendClient), response.ReceiveResult.RemoteEndPoint));
}
public LifxResponse(LifxMessage message, IPEndPoint remoteEndPoint)
{
Message = message;
RemoteEndpoint = remoteEndPoint;
}