introduce WorkoutItem, refactor ExerciseTemplate to Exercise

WorkoutsPlus/Workout/Workout.swift

@@ -17,23 +17,23 @@ final class Workout: Identifiable {
 		// Other properties and methods
 		var timestamp: Date = Date.now
 		
-		@Relationship(deleteRule: .cascade) var exercises: [Exercise] = []
+		@Relationship(deleteRule: .cascade) var exercises: [WorkoutItem] = []
 		
 		init(name: String) {
 				self.name = name
 		}
 		
-		func addExercise(from exerciseTemplate: ExerciseTemplate) {
-				self.exercises.append(Exercise(from: exerciseTemplate))
-				updateExercisePositions()
-		}
-		
 		func addExercise(_ exercise: Exercise) {
-				self.exercises.append(exercise)
+				self.exercises.append(WorkoutItem(from: exercise))
 				updateExercisePositions()
 		}
 		
-		func addExercise(_ exercises: [Exercise]) {
+//		func addExercise(_ exercise: WorkoutItem) {
+//				self.exercises.append(exercise)
+//				updateExercisePositions()
+//		}
+		
+		func addExercise(_ exercises: [WorkoutItem]) {
 				for exercise in exercises {
 						self.exercises.append(exercise)
 				}
@@ -54,13 +54,13 @@ final class Workout: Identifiable {
 }
 
 extension Workout {
-		private convenience init(name: String, exercises: [Exercise]) {
+		private convenience init(name: String, exercises: [WorkoutItem]) {
 				self.init(name: name)
 				self.exercises = exercises
 		}
 		
 		static let sampleData: [Workout] = [
-				Workout(name: "Recommended Routine", exercises: Exercise.sampleData),
-				Workout(name: "Marathon Plan", exercises: Exercise.sampleData)
+				Workout(name: "Recommended Routine", exercises: WorkoutItem.sampleData),
+				Workout(name: "Marathon Plan", exercises: WorkoutItem.sampleData)
 		]
 }