LOOP-2034: Add active insulin notice to simple bolus UI (#302)

* Add active insulin notice to simple bolus ui

* Update from PR review

Author: ps2

Loop/View Models/SimpleBolusViewModel.swift

@@ -63,6 +63,8 @@ class SimpleBolusViewModel: ObservableObject {
 
     @Published var recommendedBolus: String = "0"
 
+    @Published var activeInsulin: String?
+
     @Published var enteredCarbAmount: String = "" {
         didSet {
             if let enteredCarbs = Self.carbAmountFormatter.number(from: enteredCarbAmount)?.doubleValue, enteredCarbs > 0 {
@@ -127,6 +129,12 @@ class SimpleBolusViewModel: ObservableObject {
             } else {
                 recommendation = nil
             }
+            
+            if let decision = dosingDecision, let insulinOnBoard = decision.insulinOnBoard, insulinOnBoard.value > 0 {
+                activeInsulin = Self.doseAmountFormatter.string(from: insulinOnBoard.value)
+            } else {
+                activeInsulin = nil
+            }
         }
     }
 

Loop/Views/SimpleBolusView.swift

@@ -151,18 +151,37 @@ struct SimpleBolusView: View, HorizontalSizeClassOverride {
     }
 
     private var recommendedBolusRow: some View {
-        HStack {
-            Text("Recommended Bolus", comment: "Label for recommended bolus row on simple bolus screen")
-            Spacer()
-            HStack(alignment: .firstTextBaseline) {
-                Text(viewModel.recommendedBolus)
-                    .font(.title)
-                    .foregroundColor(Color(.label))
-                    .padding([.top, .bottom], 4)
-                bolusUnitsLabel
+        VStack(alignment: .leading) {
+            HStack {
+                Text("Recommended Bolus", comment: "Label for recommended bolus row on simple bolus screen")
+                Spacer()
+                HStack(alignment: .firstTextBaseline) {
+                    Text(viewModel.recommendedBolus)
+                        .font(.title)
+                        .foregroundColor(Color(.label))
+                        .padding([.top, .bottom], 4)
+                    bolusUnitsLabel
+                }
+            }
+            .padding(.trailing, 8)
+            if let activeInsulin = viewModel.activeInsulin {
+                HStack(alignment: .center, spacing: 3) {
+                    Text("Adjusted for")
+                        .font(.footnote)
+                        .foregroundColor(.secondary)
+                    Text("Active Insulin")
+                        .font(.footnote)
+                        .bold()
+                    Text(activeInsulin)
+                        .font(.footnote)
+                        .bold()
+                        .foregroundColor(.secondary)
+                    bolusUnitsLabel
+                        .font(.footnote)
+                        .bold()
+                }
             }
         }
-        .padding(.trailing, 8)
     }
 
     private var bolusEntryRow: some View {
@@ -197,7 +216,7 @@ struct SimpleBolusView: View, HorizontalSizeClassOverride {
             .foregroundColor(Color(.secondaryLabel))
     }
 
-    private var bolusUnitsLabel: some View {
+    private var bolusUnitsLabel: Text {
         Text(QuantityFormatter().string(from: .internationalUnit()))
             .foregroundColor(Color(.secondaryLabel))
     }