Reading / calculating dew-point.

Sources/Client/Interface.swift

@@ -0,0 +1,46 @@
+import CoreUnitTypes
+import Logging
+import Foundation
+import Models
+import NIO
+import Psychrometrics
+
+public struct Client {
+  
+  public var fetchHumidity: (HumiditySensor) -> EventLoopFuture<RelativeHumidity>
+  public var fetchTemperature: (TemperatureSensor, PsychrometricEnvironment.Units?) -> EventLoopFuture<Temperature>
+  public var toggleRelay: (Relay) -> EventLoopFuture<Void>
+  public var turnOnRelay: (Relay) -> EventLoopFuture<Void>
+  public var turnOffRelay: (Relay) -> EventLoopFuture<Void>
+  public var shutdown: () -> EventLoopFuture<Void>
+  
+  public init(
+    fetchHumidity: @escaping (HumiditySensor) -> EventLoopFuture<RelativeHumidity>,
+    fetchTemperature: @escaping (TemperatureSensor, PsychrometricEnvironment.Units?) -> EventLoopFuture<Temperature>,
+    toggleRelay: @escaping (Relay) -> EventLoopFuture<Void>,
+    turnOnRelay: @escaping (Relay) -> EventLoopFuture<Void>,
+    turnOffRelay: @escaping (Relay) -> EventLoopFuture<Void>,
+    shutdown: @escaping () -> EventLoopFuture<Void>
+  ) {
+    self.fetchHumidity = fetchHumidity
+    self.fetchTemperature = fetchTemperature
+    self.toggleRelay = toggleRelay
+    self.turnOnRelay = turnOnRelay
+    self.turnOffRelay = turnOffRelay
+    self.shutdown = shutdown
+  }
+  
+  public func fetchDewPoint(
+    temperature: TemperatureSensor,
+    humidity: HumiditySensor,
+    units: PsychrometricEnvironment.Units? = nil,
+    logger: Logger? = nil
+  ) -> EventLoopFuture<DewPoint> {
+    fetchTemperature(temperature, units)
+      .and(fetchHumidity(humidity))
+      .map { temp, humidity in
+        logger?.debug("Creating dew-point for temperature: \(temp) with humidity: \(humidity)")
+        return DewPoint.init(dryBulb: temp, humidity: humidity, units: units)
+      }
+  }
+}