//
//  Coordinator.swift
//  ReviewsCoordinationKit
//
//  Created by Javier Cicchelli on 21/03/2024.
//  Copyright © 2024 Röck+Cöde. All rights reserved.
//

public protocol Coordinator: AnyObject {
    
    // MARK: Properties
    var children: [Coordinator] { get set }
    var router: Router { get }
    
    // MARK: Functions
    func present(animated: Bool, onDismiss: Router.OnDismissClosure?)
    
}

// MARK: - Implementations
public extension Coordinator {

    // MARK: Functions
    func present(
        child: Coordinator,
        animated: Bool,
        onDismiss: Router.OnDismissClosure? = nil
    ) {
        store(child)

        child.present(animated: animated) { [weak self, weak child] in
            guard let self, let child else { return }
            
            self.free(child)
            onDismiss?()
        }
    }

    func dismiss(animated: Bool) {
        router.dismiss(animated: animated)
    }
    
}

// MARK: - Helpers
private extension Coordinator {
    
    // MARK: Functions
    func store(_ coordinator: Coordinator) {
        children.append(coordinator)
    }
    
    func free(_ coordinator: Coordinator) {
        children = children.filter { $0 !== coordinator }
    }
    
}