feat: Begins removing old interfaces and renaming

Package.swift

@@ -14,7 +14,8 @@ let package = Package(
     .library(name: "EnvVars", targets: ["EnvVars"]),
     .library(name: "Models", targets: ["Models"]),
     .library(name: "Client", targets: ["Client"]),
-    .library(name: "ClientLive", targets: ["ClientLive"])
+    .library(name: "ClientLive", targets: ["ClientLive"]),
+    .library(name: "SensorsService", targets: ["SensorsService"])
   ],
   dependencies: [
     .package(url: "https://github.com/swift-server-community/mqtt-nio.git", from: "2.0.0"),
@@ -97,6 +98,22 @@ let package = Package(
       dependencies: [
         "Models"
       ]
+    ),
+    .target(
+      name: "SensorsService",
+      dependencies: [
+        "Models",
+        .product(name: "MQTTNIO", package: "mqtt-nio"),
+        .product(name: "ServiceLifecycle", package: "swift-service-lifecycle")
+      ]
+    ),
+    .testTarget(
+      name: "SensorsServiceTests",
+      dependencies: [
+        "SensorsService",
+        // TODO: Remove.
+        "ClientLive"
+      ]
     )
   ]
 )

Sources/ClientLive/SensorsClient.swift

@@ -6,6 +6,7 @@ import NIO
 import Psychrometrics
 import ServiceLifecycle
 
+// TODO: Remove.
 // TODO: Pass in eventLoopGroup and MQTTClient.
 public actor SensorsClient {
 

Sources/SensorsService/Helpers.swift

@@ -0,0 +1,41 @@
+import CoreUnitTypes
+import Logging
+import Models
+import MQTTNIO
+import NIO
+import NIOFoundationCompat
+import Psychrometrics
+
+/// Represents a type that can be initialized by a ``ByteBuffer``.
+protocol BufferInitalizable {
+  init?(buffer: inout ByteBuffer)
+}
+
+extension Double: BufferInitalizable {
+
+  /// Attempt to create / parse a double from a byte buffer.
+  init?(buffer: inout ByteBuffer) {
+    guard let string = buffer.readString(
+      length: buffer.readableBytes,
+      encoding: String.Encoding.utf8
+    )
+    else { return nil }
+    self.init(string)
+  }
+}
+
+extension Temperature: BufferInitalizable {
+  /// Attempt to create / parse a temperature from a byte buffer.
+  init?(buffer: inout ByteBuffer) {
+    guard let value = Double(buffer: &buffer) else { return nil }
+    self.init(value, units: .celsius)
+  }
+}
+
+extension RelativeHumidity: BufferInitalizable {
+  /// Attempt to create / parse a relative humidity from a byte buffer.
+  init?(buffer: inout ByteBuffer) {
+    guard let value = Double(buffer: &buffer) else { return nil }
+    self.init(value)
+  }
+}

Sources/SensorsService/SensorsService.swift

@@ -99,6 +99,12 @@ public actor SensorsService: Service {
 
 }
 
+// MARK: - Errors
+
+struct DecodingError: Error {}
+struct NotFoundError: Error {}
+struct SensorExists: Error {}
+
 // MARK: - Helpers
 
 struct MQTTClientNotConnected: Error {}

Tests/SensorsServiceTests/SensorsClientTests.swift

@@ -5,6 +5,7 @@ import Models
 import MQTTNIO
 import NIO
 import Psychrometrics
+@testable import SensorsService
 import XCTest
 
 final class SensorsClientTests: XCTestCase {