//
// Database events
//
private async Task DeviceDiscoveredAsync(TasmotaStatus tasmotaDevice)
{
_logger.LogInformation("Received status for '{hostname}' ({ipAddress}). Updating database...", tasmotaDevice.StatusNet.HostName, tasmotaDevice.StatusNet.IpAddress);
var device = new Device()
{
_id = tasmotaDevice.StatusNet.Mac,
HostName = tasmotaDevice.StatusNet.HostName,
Ipv4Address = IPAddress.Parse(tasmotaDevice.StatusNet.IpAddress),
Ipv4SubnetPrefix = ConvertToPrefixLength(IPAddress.Parse(tasmotaDevice.StatusNet.SubnetMask)),
Ipv4Gateway = IPAddress.Parse(tasmotaDevice.StatusNet.Gateway),
Ipv4NameServer = IPAddress.Parse(tasmotaDevice.StatusNet.DnsServer),
TopicName = tasmotaDevice.Status.Topic,
FriendlyNames = tasmotaDevice.Status.FriendlyName,
FirmwareVersion = tasmotaDevice.StatusFwr.Version.Replace("(tasmota)", ""),
FirmwareSizeKb = tasmotaDevice.StatusMem.ProgramSize,
FlashSizeKb = tasmotaDevice.StatusMem.FlashSize,
Hardware = tasmotaDevice.StatusFwr.Hardware,
RestartReason = tasmotaDevice.StatusPrm.RestartReason,
TelemetrySeconds = tasmotaDevice.StatusLog.TelePeriod,
TemplateDefinition = tasmotaDevice.Template,
TemplateName = ExtractTemplateName(tasmotaDevice.Template),
Status = tasmotaDevice.StatusSts.ToDeviceStatus(),
Offline = false
};
var updatedDevice = await _deviceRepository.UpdateDeviceAsync(device, true);
if (!updatedDevice.AdoptedAt.HasValue)
{
_logger.LogInformation("Device '{hostname}' ({ipAddress}) is not adopted. Testing its Mqtt configuration...", device.HostName, device.Ipv4Address);
await _tasmotaService.TestMqttConfigurationAsync(device.Ipv4Address, device.TopicName, device._id);
}
}
private static DeviceEmulator CreateDeviceEmulator(IServiceProvider sp)
{
// https://stackoverflow.com/questions/850650/reliable-method-to-get-machines-mac-address-in-c-sharp#comment107946437_7661829
var nic = NetworkInterface.GetAllNetworkInterfaces()
.FirstOrDefault(nic => nic.OperationalStatus == OperationalStatus.Up &&
nic.NetworkInterfaceType != NetworkInterfaceType.Loopback);
var ipProperties = nic.GetIPProperties();
var ipAddress = ipProperties
.UnicastAddresses.FirstOrDefault(a => a.Address.AddressFamily == AddressFamily.InterNetwork)
?.Address?.ToString();
var gateway = ipProperties
.GatewayAddresses.FirstOrDefault(a => a.Address.AddressFamily == AddressFamily.InterNetwork)
?.Address?.ToString();
var subnetMask = ipProperties
.UnicastAddresses.FirstOrDefault(a => a.Address.AddressFamily == AddressFamily.InterNetwork)
?.IPv4Mask?.ToString();
var dnsServer = ipProperties
.DnsAddresses.FirstOrDefault(a => a.AddressFamily == AddressFamily.InterNetwork)
?.ToString();
var macSegments = nic.GetPhysicalAddress()
.GetAddressBytes();
var macSegmentsHex = macSegments
.Select(b => b.ToString("x2"));
var topicSuffixHex = macSegments
.Skip(3)
.Select(b => b.ToString("X2"));
var topic = "tasmota_" + string.Join("", topicSuffixHex);
var hostnameSuffixDec = (macSegments[4] << 8 | macSegments[5]) % 10000;
var status = new TasmotaStatus()
{
Status = new DeviceStatus()
{
FriendlyName = new[] { "Tasmota" },
Topic = topic
},
StatusPrm = new ParametersStatus
{
RestartReason = "Powered on"
},
StatusFwr = new FirmwareStatus
{
Version = "1.0.0",
Hardware = "Emulator"
},
StatusLog = new LogStatus
{
TelePeriod = 300
},
StatusMem = new MemoryStatus
{
ProgramSize = 999,
FlashSize = 999
},
StatusNet = new NetworkStatus
{
HostName = $"{topic}-{hostnameSuffixDec}",
IpAddress = ipAddress ?? string.Empty,
Gateway = gateway ?? string.Empty,
SubnetMask = subnetMask ?? string.Empty,
DnsServer = dnsServer ?? string.Empty,
Mac = string.Join(":", macSegmentsHex)
},
StatusSts = new TelemetryStatus
{
UptimeSec = 0,
Heap = 24,
LoadAvg = 0,
MqttCount = 0,
Power = "OFF",
WiFi = new TelemetryStatus.WifiStatus
{
Rssi = 100,
Signal = -30,
LinkCount = 0,
Downtime = "0T00:00:00",
}
},
Template = "{\"NAME\":\"Generic\",\"GPIO\":[255,255,255,255,255,255,255,255,255,255,255,255,255],\"FLAG\":15,\"BASE\":18}",
};
var hubContext = sp.GetService <IHubContext <DeviceHub, IDeviceHubClient> >();
var client = sp.GetService <IMqttClient>();
var result = new DeviceEmulator(status, client);
result.DeviceChanged += (s, e) => hubContext.Clients.All.DeviceChanged(result);
var logger = sp.GetService <ILogger <DeviceEmulator> >();
logger.LogInformation("Device emulator created with initial status = " + JsonConvert.SerializeObject(status, Formatting.Indented));
return(result);
}
