protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
using (var scope = _serviceProvider.CreateScope())
{
dbContext = scope.ServiceProvider.GetService <ApplicationDbContext>();
var test = dbContext.Meters.AsQueryable();
}
LogInformation("Background thread started");
var result = await MqttClnt.ConnectAsync(options);
LogInformation($"Connection result: {result.ResultCode}");
while (!stoppingToken.IsCancellationRequested)
{
await Task.Delay(30000, stoppingToken);
//Check if we can increase the charge current
//Loop through meters
foreach (BaseCache cCache in bcLookup.Values)
{
if (cCache is MeterCache)
{
MeterCache mc = (MeterCache)cCache;
//Get max current we can increase with
//Checks all phases
LogInformation($"{mc.sName}, checking possible currentChange");
//TODO Check one phase at a time
float fSuggestedCurrentChange = mc.GetMaxPhaseAddCurrent(7);
//Check all chargers that is connected
var connChargers = mc.cChildren.Where(m => m.bConnected);
//Set new current
//Number of chargers to even out on
int iChargers = connChargers.Count();
LogInformation($"{mc.sName}, possible currentChange for {iChargers} chargers: {fSuggestedCurrentChange}A");
fSuggestedCurrentChange = fSuggestedCurrentChange / iChargers;
foreach (ChargerCache cc in connChargers)
{
//TODO Handle the case where one charger uses less current than given.
//TODO Distribute to the others.
float fNewCurrent = cc.AdjustNewChargeCurrent(fSuggestedCurrentChange);
await PostAdjustedCurrent(fNewCurrent, cc);
}
}
}
LogInformation($"Background svc loop end");
}
stoppingToken.Register(() => LogInformation($" MQTTSvc background task is stopping."));
/* Python rules
* client.subscribe("EVCharger/#")
* client.subscribe("CurrentMeter/#")
*
*
* if msg.topic == "EVCharger/status/current":
* charge_current = float(msg.payload)
* print("Charge current %.1f A" % charge_current)
* if msg.topic == "CurrentMeter/status/current":
* current = float(msg.payload)
* mean_current = (9*mean_current + current) / 10
* print("Current %.1f (mean %.1f)" % (current, mean_current))
* if mean_current > max_current:
* new_charge_current = charge_current - (mean_current-max_current)
* client.publish("EVCharger/set/current", payload=str(int(new_charge_current)), qos=0, retain=False)
* if new_charge_current < 2:
* client.publish("EVCharger/set/enable", payload=str(0), qos=0, retain=False)
* else:
* client.publish("EVCharger/set/current", payload=str(int(max_current)), qos=0, retain=False)
* client.publish("EVCharger/set/enable", payload=str(1), qos=0, retain=False)
*/
//MqttClient client=(MqttClient)MqttClnt;
//result = await MqttClnt.ConnectAsync(options);
/* async Task Handler1(MqttApplicationMessageReceivedEventArgs e)
* {
* // await client1.PublishAsync($"reply/{eventArgs.ApplicationMessage.Topic}");
* string _logstr=$"{DateTime.Now} {e.ApplicationMessage.Topic} \t {Encoding.UTF8.GetString(e.ApplicationMessage.Payload)}";
* //Logger.LogInformation(logstr);
* Console.WriteLine(logstr);
* }
*
* client.UseApplicationMessageReceivedHandler(Handler1);
* while (!stoppingToken.IsCancellationRequested)
* {
* await Task.Delay(1000, stoppingToken);
*
* Console.WriteLine("Background svc looping");
*
* }
*/
Console.WriteLine("Background svc is stopping.");
//return Task.CompletedTask;
}