[iOS] 1.4.0 - Apple Fitness Integration!

ios/OpenClimb/Views/SettingsView.swift

@@ -1,3 +1,4 @@
+import HealthKit
 import SwiftUI
 import UniformTypeIdentifiers
 
@@ -16,6 +17,9 @@ struct SettingsView: View {
                 SyncSection()
                     .environmentObject(dataManager.syncService)
 
+                HealthKitSection()
+                    .environmentObject(dataManager.healthKitService)
+
                 DataManagementSection(
                     activeSheet: $activeSheet
                 )
@@ -815,6 +819,86 @@ struct ImportDataView: View {
     }
 }
 
+struct HealthKitSection: View {
+    @EnvironmentObject var healthKitService: HealthKitService
+    @State private var showingAuthorizationError = false
+    @State private var isRequestingAuthorization = false
+
+    var body: some View {
+        Section {
+            if !HKHealthStore.isHealthDataAvailable() {
+                HStack {
+                    Image(systemName: "heart.slash")
+                        .foregroundColor(.secondary)
+                    Text("Apple Health not available")
+                        .foregroundColor(.secondary)
+                }
+            } else {
+                Toggle(
+                    isOn: Binding(
+                        get: { healthKitService.isEnabled },
+                        set: { newValue in
+                            if newValue && !healthKitService.isAuthorized {
+                                isRequestingAuthorization = true
+                                Task {
+                                    do {
+                                        try await healthKitService.requestAuthorization()
+                                        await MainActor.run {
+                                            healthKitService.setEnabled(true)
+                                            isRequestingAuthorization = false
+                                        }
+                                    } catch {
+                                        await MainActor.run {
+                                            showingAuthorizationError = true
+                                            isRequestingAuthorization = false
+                                        }
+                                    }
+                                }
+                            } else if newValue {
+                                healthKitService.setEnabled(true)
+                            } else {
+                                healthKitService.setEnabled(false)
+                            }
+                        }
+                    )
+                ) {
+                    HStack {
+                        Image(systemName: "heart.fill")
+                            .foregroundColor(.red)
+                        Text("Apple Health Integration")
+                    }
+                }
+                .disabled(isRequestingAuthorization)
+
+                if healthKitService.isEnabled {
+                    VStack(alignment: .leading, spacing: 4) {
+                        Text(
+                            "Climbing sessions will be recorded as workouts in Apple Health"
+                        )
+                        .font(.caption)
+                        .foregroundColor(.secondary)
+                    }
+                }
+            }
+        } header: {
+            Text("Health")
+        } footer: {
+            if healthKitService.isEnabled {
+                Text(
+                    "Each climbing session will automatically be saved to Apple Health as a \"Climbing\" workout with the session duration."
+                )
+            }
+        }
+        .alert("Authorization Required", isPresented: $showingAuthorizationError) {
+            Button("OK", role: .cancel) {}
+        } message: {
+            Text(
+                "Please grant access to Apple Health in Settings to enable this feature."
+            )
+        }
+    }
+}
+
 #Preview {
     SettingsView()
         .environmentObject(ClimbingDataManager.preview)