Cleaning up the api.

Sources/Models/HumiditySensor.swift

@@ -1,8 +0,0 @@
-
-public struct HumiditySensor: Equatable {
-  public var topic: String
-  
-  public init(topic: String) {
-    self.topic = topic
-  }
-}

Sources/Models/Mode.swift

@@ -0,0 +1,37 @@
+import CoreUnitTypes
+
+/// Represents the different modes that the controller can be in.
+public enum Mode: Equatable {
+  
+  /// Allows controller to run in humidify or dehumidify mode.
+  case auto
+  
+  /// Only handle humidify mode.
+  case humidifyOnly(HumidifyMode)
+  
+  /// Only handle dehumidify mode.
+  case dehumidifyOnly(DehumidifyMode)
+  
+  /// Don't control humidify or dehumidify modes.
+  case off
+  
+  /// Represents the control modes for the humidify control state.
+  public enum HumidifyMode: Equatable {
+    
+    /// Control humidifying based off dew-point.
+    case dewPoint(Temperature)
+    
+    /// Control humidifying based off relative humidity.
+    case relativeHumidity(RelativeHumidity)
+  }
+  
+  /// Represents the control modes for the dehumidify control state.
+  public enum DehumidifyMode: Equatable {
+    
+    /// Control dehumidifying based off dew-point.
+    case dewPoint(high: Temperature, low: Temperature)
+    
+    /// Control humidifying based off relative humidity.
+    case relativeHumidity(high: RelativeHumidity, low: RelativeHumidity)
+  }
+}

Sources/Models/Relay.swift

@@ -1,8 +1,40 @@
 
+/// Represents a relay that can be controlled by the MQTT Broker.
 public struct Relay {
+  
+  /// The topic for the relay.
   public var topic: String
   
+  /// Create a new relay at the given topic.
+  ///
+  /// - Parameters:
+  ///   - topic: The topic for commanding the relay.
   public init(topic: String) {
     self.topic = topic
   }
 }
+
+public enum Relay2 {
+  
+  /// The topic to read the current state of the relay from.
+  case read(topic: String)
+  
+  /// The topic to command the relay state.
+  case command(topic: String)
+}
+
+extension Relay {
+  
+  /// Represents the different commands that can be sent to a relay.
+  public enum State: String {
+    
+    /// Toggle the relay state on or off based on it's current state.
+    case toggle
+    
+    /// Turn the relay off.
+    case off
+    
+    /// Turn the relay on.
+    case on
+  }
+}

Sources/Models/Sensor.swift

@@ -0,0 +1,15 @@
+
+/// Represents a sensor that provides a reading.
+public struct Sensor<Reading>: Equatable {
+  
+  /// The topic to retrieve the reading from.
+  public var topic: String
+  
+  /// Create a new sensor for the given topic.
+  ///
+  /// - Parameters:
+  ///   - topic: The topic to retrieve the readings from.
+  public init(topic: String) {
+    self.topic = topic
+  }
+}

Sources/Models/TemperatureSensor.swift

@@ -1,8 +0,0 @@
-
-public struct TemperatureSensor: Equatable {
-  public var topic: String
-  
-  public init(topic: String) {
-    self.topic = topic
-  }
-}

Sources/Models/Topics.swift

@@ -0,0 +1,91 @@
+public struct Topics {
+  
+  public var sensors: Sensors
+  public var setPoints: SetPoints
+  public var states: States
+  public var relays: Relays
+  
+  public init(
+    sensors: Sensors = .init(),
+    setPoints: SetPoints = .init(),
+    states: States = .init(),
+    relays: Relays = .init()
+  ) {
+    self.sensors = sensors
+    self.setPoints = setPoints
+    self.states = states
+    self.relays = relays
+  }
+  
+  public struct Sensors {
+    public var temperature: String
+    public var humidity: String
+    public var dewPoint: String
+    
+    public init(
+      temperature: String = "sensors/temperature",
+      humidity: String = "sensors/humidity",
+      dewPoint: String = "sensors/dew_point"
+    ) {
+      self.temperature = temperature
+      self.humidity = humidity
+      self.dewPoint = dewPoint
+    }
+  }
+  
+  public struct SetPoints {
+    public var humidify: String
+    public var dehumidify: Dehumidify
+    
+    public init(
+      humidify: String = "set_points/humidify",
+      dehumidify: Dehumidify = .init()
+    ) {
+      self.humidify = humidify
+      self.dehumidify = dehumidify
+    }
+    
+    public struct Dehumidify {
+      public var lowDewPoint: String
+      public var highDewPoint: String
+      public var lowRelativeHumidity: String
+      public var highRelativeHumidity: String
+      
+      public init(
+        lowDewPoint: String = "set_points/dehumidify/low_dew_point",
+        highDewPoint: String = "set_points/dehumidify/high_dew_point",
+        lowRelativeHumidity: String = "set_points/dehumidify/low_relative_humidity",
+        highRelativeHumidity: String = "set_points/dehumidify/high_relative_humidity"
+      ) {
+        self.lowDewPoint = lowDewPoint
+        self.highDewPoint = highDewPoint
+        self.lowRelativeHumidity = lowRelativeHumidity
+        self.highRelativeHumidity = highRelativeHumidity
+      }
+    }
+  }
+  
+  public struct States {
+    public var mode: String
+    
+    public init(mode: String = "states/mode") {
+      self.mode = mode
+    }
+  }
+  
+  public struct Relays {
+    public var dehumidification1: String
+    public var dehumidification2: String
+    public var humidification: String
+    
+    public init(
+      dehumidification1: String = "relays/dehumidification_1",
+      dehumidification2: String = "relays/dehumidification_2",
+      humidification: String = "relays/humidification"
+    ) {
+      self.dehumidification1 = dehumidification1
+      self.dehumidification2 = dehumidification2
+      self.humidification = humidification
+    }
+  }
+}