Move smoker settings to configuration

Inferno.Api/Program.cs

@@ -1,8 +1,9 @@
 using System.Device.Gpio;
 using System.Device.Gpio.Drivers;
 using System.Device.Spi;
-using Inferno.Api.Services;
 using Inferno.Api.Devices;
+using Inferno.Api.Services;
+using Inferno.Api.Settings;
 using Inferno.Common.Interfaces;
 
 GpioController _gpio = new GpioController(PinNumberingScheme.Logical, new RaspberryPi3Driver());
@@ -16,16 +17,20 @@
 
 var builder = WebApplication.CreateBuilder(args);
 
+var smokerSettings = builder.Configuration.GetSection("SmokerSettings").Get<SmokerSettings>() ?? new SmokerSettings();
+builder.Services.AddSingleton(smokerSettings);
+
 // Add services to the container.
 
 builder.Services.AddControllers();
 
-builder.Services.AddSingleton<ISmoker>(new Smoker(new Auger(_gpio, 22),
-                                                new Blower(_gpio, 21),
-                                                new Igniter(_gpio, 23),
-                                                new RtdArray(_spi),
-                                                new Display()));
-builder.Services.AddControllers();
+builder.Services.AddSingleton<ISmoker>(sp =>
+    new Smoker(new Auger(_gpio, smokerSettings.AugerPin),
+                new Blower(_gpio, smokerSettings.BlowerPin),
+                new Igniter(_gpio, smokerSettings.IgniterPin),
+                new RtdArray(_spi),
+                new Display(),
+                smokerSettings));
 
 var app = builder.Build();
 

Inferno.Api/Services/Smoker.cs

@@ -1,9 +1,10 @@
 using System.Diagnostics;
 using Inferno.Api.Interfaces;
-using Inferno.Common.Interfaces;
-using Inferno.Common.Models;
 using Inferno.Api.Pid;
+using Inferno.Api.Settings;
 using Inferno.Common.Extensions;
+using Inferno.Common.Interfaces;
+using Inferno.Common.Models;
 
 namespace Inferno.Api.Services
 {
@@ -15,29 +16,30 @@ public class Smoker : ISmoker
         IRelayDevice _igniter;
         IRtdArray _rtdArray;
         IDisplay _display;
+        SmokerSettings _settings;
 
         int _setPoint;
         /// <summary>
         /// Arbitrary factor to determine how much to run the auger each cycle in Smoke mode.
         /// Borrowed from Traeger's "P" setting. 1 is the lowest, 5 is the highest.
         /// </summary>
         int _pValue;
-        int _maxSetPoint = 400;
-        int _minSetPoint = 180;
+        int _maxSetPoint;
+        int _minSetPoint;
 
-        int _maxGrillTemp = 425;
+        int _maxGrillTemp;
 
         /// <summary>
         /// Timeout for the blower to run after shutdown.
         /// </summary>
-        TimeSpan _shutdownBlowerTimeout = TimeSpan.FromMinutes(10);
+        TimeSpan _shutdownBlowerTimeout;
 
         /// <summary>
         /// Hold cycle time. This is the amount of time a Hold iteration takes in total.
         /// The PID determines a period of time to run the auger as a percentage of this time.
         /// Also used in Sear mode to determine how long to run the auger when the grill is too hot.
         /// </summary>
-        TimeSpan _holdCycle = TimeSpan.FromSeconds(10);
+        TimeSpan _holdCycle;
 
         CancellationTokenSource _cts = null!;
         SmokerPid _pid;
@@ -46,12 +48,12 @@ public class Smoker : ISmoker
         /// <summary>
         /// Maximum value for the PID output. This is the maximum amount of the "hold" cycle time that the auger will run.
         /// </summary>
-        double _uMax = 1.0;
+        double _uMax;
         /// <summary>
         /// Minimum value for the PID output. This is the minimum amount of the "hold" cycle time that the auger will run.
         /// Too low of a value can cause the fire to go out. Too high of a value can result in the fire being too hot.
         /// </summary>
-        double _uMin = 0.175;
+        double _uMin;
 
         Task _modeLoopTask;
         DisplayUpdater _displayUpdater;
@@ -61,22 +63,32 @@ public Smoker(IRelayDevice auger,
                         IRelayDevice blower,
                         IRelayDevice igniter,
                         IRtdArray rtdArray,
-                        IDisplay display)
+                        IDisplay display,
+                        SmokerSettings settings)
         {
             _auger = auger;
             _blower = blower;
             _igniter = igniter;
             _rtdArray = rtdArray;
             _display = display;
+            _settings = settings;
+
+            _maxSetPoint = settings.MaxSetPoint;
+            _minSetPoint = settings.MinSetPoint;
+            _maxGrillTemp = settings.MaxGrillTemp;
+            _shutdownBlowerTimeout = TimeSpan.FromMinutes(settings.ShutdownBlowerTimeoutMinutes);
+            _holdCycle = TimeSpan.FromSeconds(settings.HoldCycleSeconds);
+            _uMax = settings.UMax;
+            _uMin = settings.UMin;
 
             _mode = SmokerMode.Ready;
             _setPoint = _minSetPoint;
             _lastModeChange = DateTime.Now;
             PValue = 2;
 
-            CancellationTokenSource _cts = new CancellationTokenSource();
+            _cts = new CancellationTokenSource();
 
-            _pid = new SmokerPid(60.0, 180.0, 45.0);
+            _pid = new SmokerPid(settings.PB, settings.Ti, settings.Td);
 
             _displayUpdater = new DisplayUpdater(this, _display);
             _fireMinder = new FireMinder(this, _igniter);

Inferno.Api/Settings/SmokerSettings.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace Inferno.Api.Settings
+{
+    public class SmokerSettings
+    {
+        public int AugerPin { get; set; }
+        public int BlowerPin { get; set; }
+        public int IgniterPin { get; set; }
+        public int MaxSetPoint { get; set; } = 400;
+        public int MinSetPoint { get; set; } = 180;
+        public int MaxGrillTemp { get; set; } = 425;
+        public double ShutdownBlowerTimeoutMinutes { get; set; } = 10;
+        public double HoldCycleSeconds { get; set; } = 10;
+        public double UMax { get; set; } = 1.0;
+        public double UMin { get; set; } = 0.175;
+        public double PB { get; set; } = 60.0;
+        public double Ti { get; set; } = 180.0;
+        public double Td { get; set; } = 45.0;
+    }
+}

Inferno.Api/appsettings.Development.json

@@ -5,5 +5,20 @@
       "System": "Information",
       "Microsoft": "Information"
     }
+  },
+  "SmokerSettings": {
+    "AugerPin": 22,
+    "BlowerPin": 21,
+    "IgniterPin": 23,
+    "MaxSetPoint": 400,
+    "MinSetPoint": 180,
+    "MaxGrillTemp": 425,
+    "ShutdownBlowerTimeoutMinutes": 10,
+    "HoldCycleSeconds": 10,
+    "UMax": 1.0,
+    "UMin": 0.175,
+    "PB": 60.0,
+    "Ti": 180.0,
+    "Td": 45.0
   }
 }

Inferno.Api/appsettings.json

@@ -7,4 +7,20 @@
     }
   },
   "AllowedHosts": "*"
+  ,
+  "SmokerSettings": {
+    "AugerPin": 22,
+    "BlowerPin": 21,
+    "IgniterPin": 23,
+    "MaxSetPoint": 400,
+    "MinSetPoint": 180,
+    "MaxGrillTemp": 425,
+    "ShutdownBlowerTimeoutMinutes": 10,
+    "HoldCycleSeconds": 10,
+    "UMax": 1.0,
+    "UMin": 0.175,
+    "PB": 60.0,
+    "Ti": 180.0,
+    "Td": 45.0
+  }
 }