Allow deletion of workouts

HealthImport/WorkoutDetailView.swift

@@ -40,6 +40,9 @@ struct WorkoutDetailView: View {
     @State
     private var isProcessingWorkout = false
 
+    @State
+    private var healthButtonText = "Checking for workout in Health..."
+
     private var metadataFields: [(key: String, value: Any)] {
         workout.metadata.sorted { $0.key }
     }
@@ -51,37 +54,28 @@ struct WorkoutDetailView: View {
 
     var body: some View {
         List {
-            if healthWorkout != nil {
-                HStack {
-                    Spacer()
-                    VStack {
-                        Text("Matching workout found in Health")
-                            .foregroundStyle(.black)
-                    }
-                    Spacer()
-                }
-                .padding(.vertical, 8)
-                .listRowBackground(Color.accentColor)
-            } else {
-                Button(action: addWorkoutToHealth) {
+            Button(action: addOrDeleteHealthWorkout) {
                 HStack {
                     Spacer()
                     if isProcessingWorkout {
                         ProgressView()
                             .progressViewStyle(.circular)
                             .padding(.trailing, 10)
-                            Text("Adding workout to health...")
-                                .foregroundStyle(.accent)
-                        } else {
-                            Text("Add workout to health")
+                    }
+                    VStack {
+                        Text(healthButtonText)
                             .foregroundStyle(.accent)
+                        if healthWorkout != nil {
+                            Text("Tap to delete")
+                                .font(.caption)
+                                .foregroundStyle(.gray)
+                        }
                     }
                     Spacer()
                 }
                 .padding(.vertical, 8)
             }
             .disabled(isProcessingWorkout)
-            }
             Section("Info") {
                 DetailRow("Start", date: workout.startDate)
                 DetailRow("Duration", duration: workout.duration)
@@ -180,21 +174,65 @@ struct WorkoutDetailView: View {
         }
     }
 
-    private func addWorkoutToHealth() {
-        guard let db = database.store else {
+    private func updateButtonText() {
+        if isProcessingWorkout {
+            if healthWorkout == nil {
+                self.healthButtonText = "Adding workout to Health..."
+            } else {
+                self.healthButtonText = "Deleting workout from Health..."
+            }
+        } else {
+            if healthWorkout == nil {
+                healthButtonText = "Add workout to Health"
+            } else {
+                healthButtonText = "Found matching workout in Health"
+            }
+        }
+    }
+
+    private func addOrDeleteHealthWorkout() {
+        guard !isProcessingWorkout else {
             return
         }
         DispatchQueue.main.async {
             self.isProcessingWorkout = true
+            updateButtonText()
         }
         Task {
-            await insert(workout: workout, using: db)
+            if let healthWorkout {
+                await delete(healthWorkout: healthWorkout)
+            } else {
+                await addWorkoutToHealth()
+            }
+            DispatchQueue.main.async {
+                self.isProcessingWorkout = false
+                updateButtonText()
+            }
+        }
+    }
+
+    private func delete(healthWorkout: HKWorkout) async {
+        do {
+            try await store.store.delete(healthWorkout)
+            DispatchQueue.main.async {
+                self.healthWorkout = nil
+                self.isProcessingWorkout = false
+            }
+        } catch {
+            show("Failed to delete workout: \(error)")
             DispatchQueue.main.async {
                 self.isProcessingWorkout = false
             }
         }
     }
 
+    private func addWorkoutToHealth() async {
+        guard let db = database.store else {
+            return
+        }
+        await insert(workout: workout, using: db)
+    }
+
     private func requestAuthorization() async -> Bool {
         do {
             try await store.requestAuthorization(
@@ -222,16 +260,28 @@ struct WorkoutDetailView: View {
             show("No sharing permission for workout routes")
             return
         }
-        let samples: [HKSample]
+        var samples: [HKSample]
         do {
             samples = try db.store.samples(associatedWith: workout)
         } catch {
             show("Failed to access samples associated with workout: \(error)")
             return
         }
+
+        // Add missing samples from statistics
+        let newSamples = makeStatisticSamples(workout, in: db)
+        for sample in newSamples {
+            guard !samples.contains(where: { $0.sampleType == sample.sampleType }) else {
+                continue
+            }
+            let typeName = HKQuantityTypeIdentifier(rawValue: sample.quantityType.identifier).description
+            print("Adding missing sample \(typeName)")
+            samples.append(sample)
+        }
+
         let route: WorkoutRoute?
         do {
-            route = try db.store.route(associatedWith: workout)
+            route = try db.route(associatedWith: workout)
         } catch {
             show("Failed to get route associated with workout: \(error)")
             return
@@ -239,7 +289,7 @@ struct WorkoutDetailView: View {
         let locations: [CLLocation]
         do {
             locations = try route.map {
-                try db.store.locations(associatedWith: $0)
+                try db.locations(associatedWith: $0)
             } ?? []
         } catch {
             show("Failed to get locations associated with route: \(error)")
@@ -261,6 +311,22 @@ struct WorkoutDetailView: View {
         }
     }
 
+    private func makeStatisticSamples(_ workout: Workout, in db: HealthDatabase) -> [HKQuantitySample] {
+        let startDate = workout.startDate
+        let endDate = workout.endDate
+        let activity = workout.workoutActivities[0]
+
+        do {
+            let statistics = try db.statistics(associatedWith: activity)
+            return statistics.map {
+                .init(type: $0, quantity: $1.average, start: startDate, end: endDate)
+            }
+        } catch {
+            print("Failed to get statistics for activity: \(error)")
+            return []
+        }
+    }
+
     private func loadSamples() {
         Task {
             await checkPermissionsAndSearchHealth()
@@ -318,11 +384,19 @@ struct WorkoutDetailView: View {
         guard HKHealthStore.isHealthDataAvailable() else {
             return
         }
+        DispatchQueue.main.async {
+            self.healthButtonText = "Checking for matching workout..."
+            self.isProcessingWorkout = true
+        }
         do {
             try await checkPermissionsAndFindWorkout()
         } catch {
             show("Failed to search for similar workout in Health: \(error)")
         }
+        DispatchQueue.main.async {
+            self.isProcessingWorkout = false
+            updateButtonText()
+        }
     }
 
     private func checkPermissionsAndFindWorkout() async throws {