I have a workout model:

@Model
class Workout {
    var id: UUID
    var name: String?
    
    @Relationship(deleteRule: .cascade) //when deleting a workout you delete all exericses that happened during that workout
    var exercises: [Exercise]?
    
    var startTime: Date?
    var endTime: Date?
    
    init(id: UUID) {
        self.id = id
    }
}

which contains an array of Exercises:

@Model
class Exercise: Identifiable {
    var id: UUID
    var exerciseName: ExerciseName
    
    @Relationship(deleteRule: .cascade)
    var sets: [Set]?    //When an Exercise gets Deleted all Sets associated need to get deleted
    var date: Date
    var workout: Workout?       //it can belong to a work but it doesnt have to
    
    init(id: UUID, exerciseName: ExerciseName, date: Date) {
        self.id = id
        self.exerciseName = exerciseName
        self.date = date
    }
    
    
}

which itself contains an array of Sets:

@Model
class Set: Identifiable{
    var id: UUID
    var weight: Int
    var reps: Int
    var isCompleted: Bool
    var exercise: Exercise
    
    init(id: UUID, weight: Int, reps: Int,isCompleted: Bool, exercise: Exercise) {
        self.id = id
        self.weight = weight
        self.reps = reps
        self.isCompleted = isCompleted
        self.exercise = exercise
    }
    
}

I Iterate through the entire Workout Model in a List and what I want to do is have a duplicate button that will create a new Workout but copy all of the Data of the current Workout that got clicked in the list:

                             Button {
 
                                        let newWorkout: Workout = Workout(id: UUID())                                            
                                        newWorkout.name = workout.name

                                        //this is not copying at all
                                        newWorkout.exercises = workout.exercises


                                        newWorkout.startTime = Date.now
                                        newWorkout.endTime = Date.now
                                        modelContext.insert(workout)
                                        showDuplicateButton.toggle()
                                        
                                    }

Everything is copying correctly except the exercise array which is completely empty, how would I do a deep copy that will copy all of the exercises and sets too into this new workout?