//
//  CardsController.swift
//  Wallet
//
//  Created by Igor on 15.12.2020.
//  Copyright © 2020 AM. All rights reserved.
//

import UIKit
import WalletFoundation

class CardsController: UIViewController {
    
    @IBOutlet private weak var tableView: UITableView!
    @IBOutlet private weak var emptyView: CommonViewEmptyContainer!
    
    private let service = Cards.shared
    
    var didSelect: ((Cards.Model) -> Void)?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        view.addSubview(emptyView)
        title = L10n.Cards.title
        navigationItem.leftBarButtonItem = .pop(self)
        emptyView.action = .action(empty: .menu(title: L10n.Cards.Empty.submit)) { [weak self]_ in
            self?.show()
        }
        tableView.register(cell: CommonCellCard.self)
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        self.navigationController >>- {
            $0.navigationBar.isTranslucent = false
            $0.navigationBar.backgroundColor = Asset.snow.color
            $0.setNavigationBarHidden(false, animated: true)
        }
        Accounts().isLocked = true
        reload()
    }

    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(animated)
        Accounts().isLocked = false
    }

    func reload() {
        tableView.reloadData()
        emptyView.isEmpty = service.collection.isEmpty
        navigationItem.rightBarButtonItem = service.collection.isEmpty ? nil : .init(
            customView: .button(style: .outline, title: L10n.Cards.new, image: Asset.commonPlus.image, size: .small) { [weak self] in self?.show() }
        )
    }
    
    private func show(card: Cards.Model? = nil) {
        let ctrl = StoryboardScene.Cards.card.instantiate()
        if let card = card { ctrl.service = .init(card: card) }
        ctrl.completion = { [weak self] _ in self?.reload() }
        navigationController?.pushViewController(ctrl, animated: true)
    }
    
}

extension CardsController: UITableViewDelegate, UITableViewDataSource {
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { service.collection.count }
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(CommonCellCard.self, indexPath: indexPath)
        cell.cardView.style = .data
        cell.cardView.action = .select(
            icon: Asset.commonMenuHorizontal.image,
            empty: service.collection[indexPath.row].toMenu(),
            collection: service.menu(for: service.collection[indexPath.row]).map({ $0.toMenu() }),
            update: false
        ) { [weak self] menu in
            guard let self,
                  let serviceMenu = Cards.Service.Menu(rawValue: menu.uuid) else { return }
            switch serviceMenu {
            case .edit:
                self.show(card: self.service.collection[indexPath.row])
            case .primary:
                self.service.default = self.service.collection[indexPath.row]
                self.reload()
            case .delete:
                Alert.system(
                    title: L10n.Common.Button.delete,
                    text: L10n.Cards.delete(self.service.collection[indexPath.row].number),
                    actions: [
                        .yes {
                            self.service.delete(card: self.service.collection[indexPath.row])
                            self.reload()
                        },
                        .cancel
                    ],
                    in: self
                )
            }
        }
        return cell
    }
}