Feat: Working on pressure estimations feature

Sources/PressureEstimationsFeature/EstimateSettingsForm.swift

@@ -6,22 +6,39 @@ import SwiftUI
 @Reducer
 public struct EstimateSettingsForm {
 
+  @CasePathable
+  public enum InfoView {
+    case budgets
+    case updatedAirflow
+  }
+
+  @Reducer(state: .equatable)
+  public enum Destination {
+    case infoView(InfoViewFeature)
+  }
+
   @ObservableState
   public struct State: Equatable {
 
+    @Presents public var destination: Destination.State?
     public var budgets: BudgetedPercentEnvelope
-    public let equipmentType: EquipmentType
+    public let equipmentMeasurement: EquipmentMeasurement
     public var fanType: FanType
     public var focusedField: Field? = nil
     public var updatedAirflow: Double?
 
     public init(
-      equipmentType: EquipmentType,
+      destination: Destination.State? = nil,
+      equipmentMeasurement: EquipmentMeasurement,
       fanType: FanType = .constantSpeed,
       updatedAirflow: Double? = nil
     ) {
-      self.budgets = .init(equipmentType: equipmentType, fanType: fanType)
-      self.equipmentType = equipmentType
+      self.destination = destination
+      self.equipmentMeasurement = equipmentMeasurement
+      self.budgets = .init(
+        equipmentType: equipmentMeasurement.equipmentType,
+        fanType: fanType
+      )
       self.fanType = fanType
       self.updatedAirflow = updatedAirflow
     }
@@ -42,19 +59,15 @@ public struct EstimateSettingsForm {
 
   public enum Action: BindableAction, ViewAction {
     case binding(BindingAction<State>)
+    case destination(PresentationAction<Destination.Action>)
     case view(View)
 
     @CasePathable
     public enum View {
-      case infoButtonTapped(InfoButton)
+      case infoButtonTapped(InfoView)
+      case nextButtonTapped
       case resetButtonTapped
       case submitField
-
-      @CasePathable
-      public enum InfoButton {
-        case budgets
-        case updatedAirflow
-      }
     }
   }
 
@@ -62,9 +75,10 @@ public struct EstimateSettingsForm {
     BindingReducer()
     Reduce<State, Action> { state, action in
       switch action {
+
       case .binding(\.fanType):
         state.budgets = .init(
-          equipmentType: state.equipmentType,
+          equipmentType: state.equipmentMeasurement.equipmentType,
           fanType: state.fanType
         )
         return .none
@@ -72,15 +86,29 @@ public struct EstimateSettingsForm {
       case .binding:
         return .none
 
+      case .destination(.dismiss):
+        state.destination = nil
+        return .none
+
+      case .destination:
+        return .none
+
       case let .view(action):
         switch action {
 
-        case .infoButtonTapped:
+        case let .infoButtonTapped(infoView):
+          state.destination = .infoView(.init(view: infoView))
+          return .none
+
+        case .nextButtonTapped:
           #warning("Fix me.")
           return .none
 
         case .resetButtonTapped:
-          state.budgets = .init(equipmentType: state.equipmentType, fanType: state.fanType)
+          state.budgets = .init(
+            equipmentType: state.equipmentMeasurement.equipmentType,
+            fanType: state.fanType
+          )
           state.updatedAirflow = nil
           return .none
 
@@ -91,6 +119,7 @@ public struct EstimateSettingsForm {
         }
       }
     }
+    .ifLet(\.$destination, action: \.destination)
   }
 }
 
@@ -121,7 +150,7 @@ public struct EstimateSettingsFormView: View {
 
       Section {
         Grid(alignment: .leading, horizontalSpacing: 40) {
-          if store.equipmentType == .furnaceAndCoil {
+          if store.equipmentMeasurement.equipmentType == .furnaceAndCoil {
             GridRow {
               TextLabel("Coil")
               percentField("Coil Budget", value: $store.budgets.coilBudget.fraction)
@@ -177,7 +206,11 @@ public struct EstimateSettingsFormView: View {
       }
 
       Section {
-
+        TextField(
+          "Airflow",
+          value: $store.updatedAirflow,
+          fractionLength: 0
+        )
       } header: {
         HStack {
           Text("Updated Airflow")
@@ -189,8 +222,9 @@ public struct EstimateSettingsFormView: View {
           ResetButton { send(.resetButtonTapped) }
           Spacer()
           Button("Next") {
-            #warning("Fix me.")
+            send(.nextButtonTapped)
           }
+          .disabled(!store.isValid)
         }
         .padding(.top)
       }
@@ -198,6 +232,16 @@ public struct EstimateSettingsFormView: View {
     .labelsHidden()
     .bind($focusedField, to: $store.focusedField)
     .navigationTitle("Estimate Settings")
+    .sheet(
+      item: $store.scope(
+        state: \.destination?.infoView,
+        action: \.destination.infoView
+      )
+    ) { store in
+      NavigationStack {
+        InfoView(store: store)
+      }
+    }
   }
 
   private func percentField(
@@ -219,11 +263,36 @@ fileprivate struct BudgetFlagViewStyle: FlaggedViewStyle {
   }
 }
 
+fileprivate extension InfoViewFeature.State {
+  init(view: EstimateSettingsForm.InfoView) {
+    switch view {
+    case .budgets:
+      self.init(
+        title: "Budgets",
+        body: """
+        Budgeted percentages for static pressure estimations, these generally are set to
+        reasonable defaults, however you can change them if desired.
+
+        Note: These must total up to 100%.
+        """
+      )
+    case .updatedAirflow:
+      self.init(
+        title: "Updated Airflow",
+        body: """
+        This is used to generated estimated static pressures at the updated airflow
+        compared to the existing airflow of the system.
+        """
+      )
+    }
+  }
+}
+
 #Preview {
   NavigationStack {
     EstimateSettingsFormView(
       store: Store(
-        initialState: EstimateSettingsForm.State(equipmentType: .furnaceAndCoil)
+        initialState: EstimateSettingsForm.State(equipmentMeasurement: .furnaceAndCoil(.init()))
       ) {
         EstimateSettingsForm()
       }