90 lines
3.5 KiB
Swift
90 lines
3.5 KiB
Swift
import CoreUnitTypes
|
|
import Logging
|
|
import Foundation
|
|
import Models
|
|
import NIO
|
|
import Psychrometrics
|
|
|
|
/// Represents the applications interactions with the MQTT Broker.
|
|
///
|
|
/// This is an abstraction around the ``MQTTNIO.MQTTClient``.
|
|
public struct MQTTClient {
|
|
|
|
/// Retrieve the humidity from the MQTT Broker.
|
|
public var fetchHumidity: (Sensor<RelativeHumidity>) -> EventLoopFuture<RelativeHumidity>
|
|
|
|
/// Retrieve a set point from the MQTT Broker.
|
|
public var fetchSetPoint: (KeyPath<Topics.SetPoints, String>) -> EventLoopFuture<Double>
|
|
|
|
/// Retrieve the temperature from the MQTT Broker.
|
|
public var fetchTemperature: (Sensor<Temperature>, PsychrometricEnvironment.Units?) -> EventLoopFuture<Temperature>
|
|
|
|
/// Publish a change of state message for a relay.
|
|
public var setRelay: (KeyPath<Topics.Commands.Relays, String>, Relay.State) -> EventLoopFuture<Void>
|
|
|
|
/// Disconnect and close the connection to the MQTT Broker.
|
|
public var shutdown: () -> EventLoopFuture<Void>
|
|
|
|
/// Publish the current dew point to the MQTT Broker
|
|
public var publishDewPoint: (DewPoint, String) -> EventLoopFuture<Void>
|
|
|
|
public init(
|
|
fetchHumidity: @escaping (Sensor<RelativeHumidity>) -> EventLoopFuture<RelativeHumidity>,
|
|
fetchSetPoint: @escaping (KeyPath<Topics.SetPoints, String>) -> EventLoopFuture<Double>,
|
|
fetchTemperature: @escaping (Sensor<Temperature>, PsychrometricEnvironment.Units?) -> EventLoopFuture<Temperature>,
|
|
setRelay: @escaping (KeyPath<Topics.Commands.Relays, String>, Relay.State) -> EventLoopFuture<Void>,
|
|
shutdown: @escaping () -> EventLoopFuture<Void>,
|
|
publishDewPoint: @escaping (DewPoint, String) -> EventLoopFuture<Void>
|
|
) {
|
|
self.fetchHumidity = fetchHumidity
|
|
self.fetchSetPoint = fetchSetPoint
|
|
self.fetchTemperature = fetchTemperature
|
|
self.setRelay = setRelay
|
|
self.shutdown = shutdown
|
|
self.publishDewPoint = publishDewPoint
|
|
}
|
|
|
|
/// Fetches the current temperature and humidity and calculates the current dew point.
|
|
///
|
|
/// - Parameters:
|
|
/// - temperature: The temperature sensor to fetch the temperature from.
|
|
/// - humidity: The humidity sensor to fetch the humidity from.
|
|
/// - units: Optional units for the dew point.
|
|
public func currentDewPoint(
|
|
temperature: Sensor<Temperature>,
|
|
humidity: Sensor<RelativeHumidity>,
|
|
units: PsychrometricEnvironment.Units? = nil
|
|
) -> EventLoopFuture<DewPoint> {
|
|
fetchTemperature(temperature, units)
|
|
.and(fetchHumidity(humidity))
|
|
.convertToDewPoint(units: units)
|
|
}
|
|
|
|
/// Convenience to send a change of state message to a relay.
|
|
///
|
|
/// - Parameters:
|
|
/// - relay: The relay to send the message to.
|
|
/// - state: The state to change the relay to.
|
|
public func `set`(relay: KeyPath<Topics.Commands.Relays, String>, to state: Relay.State) -> EventLoopFuture<Void> {
|
|
setRelay(relay, state)
|
|
}
|
|
|
|
/// Convenience to publish the current dew point back to the MQTT Broker.
|
|
///
|
|
/// This is synactic sugar around ``MQTTClient.publishDewPoint``.
|
|
///
|
|
/// - Parameters:
|
|
/// - dewPoint: The dew point value to publish.
|
|
/// - topic: The dew point topic to publish to.
|
|
public func publish(dewPoint: DewPoint, to topic: String) -> EventLoopFuture<Void> {
|
|
publishDewPoint(dewPoint, topic)
|
|
}
|
|
}
|
|
|
|
extension EventLoopFuture where Value == (Temperature, RelativeHumidity) {
|
|
|
|
fileprivate func convertToDewPoint(units: PsychrometricEnvironment.Units?) -> EventLoopFuture<DewPoint> {
|
|
map { .init(dryBulb: $0, humidity: $1, units: units) }
|
|
}
|
|
}
|