AgeGateExample/Presentation/CartVC/CartVC.swift - develop - sberpay/AgeGate-iOS

AgeGateExample/Presentation/CartVC/CartVC.swift
118 строк4 KB
SergeyGladkiy
[0.2.0] БДСЧ сценарий
30 июл 2026, 21:57
30 июл 2026, 21:57cbcdfcb
//
//  CartVC.swift
//  AgeGateExample
//
//  Created by Гладкий Сергей Игоревич on 23.07.2026.
//

import UIKit

protocol CartVCProtocol: AnyObject {
    func reload()
    func updateTotal()
    func showResult(title: String, message: String?)
}

final class CartVC: UIViewController, CartVCProtocol {

    private let presenter: CartPresenterProtocol

    private lazy var tableView: UITableView = {
        let view = UITableView(frame: .zero, style: .plain)
        view.register(CartCell.self, forCellReuseIdentifier: String(describing: CartCell.self))
        view.dataSource = self
        view.separatorStyle = .none
        view.translatesAutoresizingMaskIntoConstraints = false
        return view
    }()

    private lazy var hintLabel: UILabel = {
        let view = UILabel()
        view.text = "Для покупки товаров с отметкой 18+ потребуется биометрия"
        view.font = .systemFont(ofSize: 12)
        view.textColor = .secondaryLabel
        view.numberOfLines = 0
        view.translatesAutoresizingMaskIntoConstraints = false
        return view
    }()

    private lazy var payButton = ActionButton()

    init(presenter: CartPresenterProtocol) {
        self.presenter = presenter
        super.init(nibName: nil, bundle: nil)
    }

    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        title = "Корзина"
        view.backgroundColor = .systemBackground
        setupUI()
        updateTotal()
    }

    private func setupUI() {
        view.addSubview(tableView)
        view.addSubview(hintLabel)
        view.addSubview(payButton)

        NSLayoutConstraint.activate([
            tableView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
            tableView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
            tableView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
            tableView.bottomAnchor.constraint(equalTo: hintLabel.topAnchor, constant: -12),

            hintLabel.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 16),
            hintLabel.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -16),
            hintLabel.bottomAnchor.constraint(equalTo: payButton.topAnchor, constant: -12),

            payButton.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 16),
            payButton.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -16),
            payButton.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor, constant: -16)
        ])
    }

    // MARK: - CartVCProtocol

    func reload() {
        tableView.reloadData()
        updateTotal()
    }

    func updateTotal() {
        let title = presenter.hasRestrictedItems ? "Подтвердить возраст и оплатить" : "Оплатить"
        hintLabel.isHidden = !presenter.hasRestrictedItems
        payButton.config(title: title, subtitle: "\(presenter.total) ₽") { [weak self] in
            guard let self else { return }
            self.presenter.startAgeGate(from: self)
        }
    }

    func showResult(title: String, message: String?) {
        let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
        alert.addAction(.init(title: "Понятно", style: .default))
        present(alert, animated: true)
    }

}

// MARK: - UITableViewDataSource

extension CartVC: UITableViewDataSource {

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        presenter.itemsCount
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell: CartCell = tableView.dequeue(for: indexPath)
        cell.config(item: presenter.item(at: indexPath.row)) { [weak self] count in
            self?.presenter.changeCount(count, at: indexPath.row)
        }
        return cell
    }
}