feat: Begins htmx integration

Sources/ViewController/Live.swift

@@ -1,6 +1,9 @@
+import ApiController
 import Dependencies
 import DependenciesMacros
 import Elementary
+import Logging
+import PsychrometricClient
 import Routes
 
 public extension DependencyValues {
@@ -14,7 +17,23 @@ public typealias AnySendableHTML = (any HTML & Sendable)
 
 @DependencyClient
 public struct ViewController: Sendable {
-  public var view: @Sendable (SiteRoute.View) async throws -> AnySendableHTML
+  public var view: @Sendable (Request) async throws -> AnySendableHTML
+
+  public struct Request: Sendable {
+    let route: SiteRoute.View
+    let isHtmxRequest: Bool
+    let logger: Logger
+
+    public init(
+      _ route: SiteRoute.View,
+      isHtmxRequest: Bool,
+      logger: Logger
+    ) {
+      self.route = route
+      self.isHtmxRequest = isHtmxRequest
+      self.logger = logger
+    }
+  }
 }
 
 extension ViewController: TestDependencyKey {
@@ -23,10 +42,37 @@ extension ViewController: TestDependencyKey {
 
 extension ViewController: DependencyKey {
   public static var liveValue: ViewController {
-    .init(view: { _ in
-      MainPage {
-        MoldRiskForm()
+    @Dependency(\.psychrometricClient) var psychrometricClient
+
+    return .init(view: { request in
+      switch request.route {
+      case .index:
+        return MainPage {
+          p(.class("dark:text-gray-200")) {
+            "Professional calculators for HVAC system design and troubleshooting."
+          }
+        }
+      case let .moldRisk(route):
+        switch route {
+        case .index:
+          return request.respond(MoldRiskForm(response: nil))
+        case let .submit(request):
+          let response = try await psychrometricClient.respond(request)
+          return MoldRiskResponse(response: response)
+        }
       }
     })
   }
 }
+
+extension ViewController.Request {
+
+  func respond<C: HTML>(
+    _ html: C
+  ) -> AnySendableHTML where C: Sendable {
+    guard isHtmxRequest else {
+      return MainPage { html }
+    }
+    return html
+  }
+}