workoutsplus/WorkoutsPlus/Workout/Workout.swift

//
//  Workout.swift
//  WorkoutsPlus
//
//  Created by Felix Förtsch on 10.08.24.
//

import Foundation
import SwiftData

@Model
final class Workout: Identifiable {
		var id = UUID()
		var name: String
		static var systemImage = "figure.run.square.stack"
		
		// Other properties and methods
		var timestamp: Date = Date.now
		
		@Relationship(deleteRule: .cascade) var workoutItems: [WorkoutItem] = []
		
		init(name: String) {
				self.name = name
		}
		
		func add(workoutItem: WorkoutItem) {
				self.workoutItems.append(workoutItem)
				updateExercisePositions()
		}
		
		func add(workoutItems: [WorkoutItem]) {
				for workoutItem in workoutItems {
						self.workoutItems.append(workoutItem)
				}
				updateExercisePositions()
		}
		
		func moveWorkoutItem(from source: IndexSet, to destination: Int) {
				workoutItems.move(fromOffsets: source, toOffset: destination)
				updateExercisePositions()
		}
		
		private func updateExercisePositions() {
				for (index, exercise) in workoutItems.enumerated() {
						exercise.position = index
				}
		}
		
}

extension Workout {
		private convenience init(name: String, exercises: [WorkoutItem]) {
				self.init(name: name)
				self.workoutItems = exercises
		}
		
		static let sampleData: Workout = {
				var workout = Workout(name: "Recommended Routine")
				
				for workoutItem in WorkoutItem.sampleData {
						workout.add(workoutItem: workoutItem)
				}
				
				return workout
		}()
		
}