//

// MoveToLsisViewController.swift

// LockdownSandbox

//

// Created by Aliaksandr Dvoineu on 28.04.23.

//

import UIKit

import CocoaLumberjackSwift

final class MoveToListViewController: UIViewController {

// MARK: - Properties

var moveToListCompletion: (() -> ())?

private var didMakeChange = false

var successMessage = ""

var selectedDomains: Dictionary<String, Bool> = [:] {

didSet {

if selectedDomains.count == 1 {

numberOfdomains.text = "\(selectedDomains.count) " + NSLocalizedString("domain", comment: "")

successMessage = "\(selectedDomains.count) domain has been moved to list successfully."

} else {

numberOfdomains.text = "\(selectedDomains.count) " + NSLocalizedString("domains", comment: "")

successMessage = "\(selectedDomains.count) domains have been moved to list successfully."

}

domainsList.text = selectedDomains.map(\.0).joined(separator: ", ")

}

}

private var customBlockedLists: [UserBlockListsGroup] = []

private let customBlockedListsTableView = CustomTableView()

private lazy var descriptionText: UILabel = {

let label = UILabel()

label.text = NSLocalizedString("Move selected Domains to an existing or a new list", comment: "")

label.textColor = .label

label.font = fontRegular14

label.textColor = .gray

label.numberOfLines = 0

label.textAlignment = .center

return label

}()

private lazy var navigationView: ConfiguredNavigationView = {

let view = ConfiguredNavigationView()

view.titleLabel.text = NSLocalizedString("Move to list", comment: "")

view.leftNavButton.setTitle(NSLocalizedString("BACK", comment: ""), for: .normal)

view.leftNavButton.addTarget(self, action: #selector(backButtonClicked), for: .touchUpInside)

view.rightNavButton.setTitle(NSLocalizedString("CANCEL", comment: ""), for: .normal)

view.rightNavButton.addTarget(self, action: #selector(cancelButtonClicked), for: .touchUpInside)

return view

}()

private lazy var domainImage: UIImageView = {

let image = UIImageView()

image.image = UIImage(systemName: "globe")

image.contentMode = .scaleAspectFit

image.tintColor = .gray

return image

}()

private lazy var domainsList: UILabel = {

let label = UILabel()

label.textColor = .label

label.font = fontRegular14

label.textAlignment = .natural

label.numberOfLines = 0

return label

}()

private lazy var numberOfdomains: UILabel = {

let label = UILabel()

label.textColor = .label

label.font = fontBold13

label.textAlignment = .natural

return label

}()

private lazy var vstackView: UIStackView = {

let stackView = UIStackView()

stackView.addArrangedSubview(domainsList)

stackView.addArrangedSubview(numberOfdomains)

stackView.axis = .vertical

stackView.distribution = .fillEqually

stackView.spacing = 3

return stackView

}()

private lazy var hstackView: UIStackView = {

let stackView = UIStackView()

stackView.addArrangedSubview(domainImage)

stackView.addArrangedSubview(vstackView)

stackView.axis = .horizontal

stackView.distribution = .fillProportionally

stackView.spacing = 8

stackView.alignment = .top

return stackView

}()

private lazy var addNewListButton: UIButton = {

let button = UIButton(type: .system)

button.tintColor = .tunnelsBlue

button.setTitle(NSLocalizedString("Add a new List", comment: ""), for: .normal)

button.setImage(UIImage(systemName: "plus.circle.fill"), for: .normal)

button.setTitleColor(.label, for: .normal)

button.imageEdgeInsets = UIEdgeInsets(top: 0, left: -10, bottom: 0, right: 0)

button.addTarget(self, action: #selector(addNewList), for: .touchUpInside)

return button

}()

// MARK: - Lifecycle

override func viewDidLoad() {

super.viewDidLoad()

view.backgroundColor = .secondarySystemBackground

configureUI()

configureListsTableView()

}

// MARK: - Configure UI

private func configureUI() {

view.addSubview(descriptionText)

descriptionText.anchors.leading.readableContentPin(inset: 12)

descriptionText.anchors.trailing.readableContentPin(inset: 12)

descriptionText.anchors.top.safeAreaPin()

view.addSubview(navigationView)

navigationView.anchors.top.spacing(8, to: descriptionText.anchors.bottom)

navigationView.anchors.leading.pin()

navigationView.anchors.trailing.pin()

view.addSubview(hstackView)

hstackView.anchors.top.spacing(12, to: navigationView.anchors.bottom)

hstackView.anchors.leading.marginsPin()

hstackView.anchors.trailing.marginsPin()

}

private func configureListsTableView() {

addTableView(customBlockedListsTableView) { tableView in

tableView.anchors.top.spacing(16, to: hstackView.anchors.bottom)

tableView.anchors.leading.pin()

tableView.anchors.trailing.pin()

}

reloadCustomBlockedLists()

}

}

// MARK: - Private functions

private extension MoveToListViewController {

func reloadCustomBlockedLists() {

customBlockedListsTableView.clear()

customBlockedLists = {

let lists = getBlockedLists().userBlockListsDefaults

let sorted = lists.sorted(by: { $0.key < $1.key })

return Array(sorted.map(\.value))

}()

createUserBlockedListsRows()

customBlockedListsTableView.reloadData()

}

func createUserBlockedListsRows() {

let userBlockedLists = getBlockedLists().userBlockListsDefaults

let tableView = customBlockedListsTableView

tableView.separatorStyle = .singleLine

let plusButton = UIButton(type: .system)

plusButton.setImage(UIImage(systemName: "plus"), for: .normal)

plusButton.tintColor = .tunnelsBlue

tableView.addHeader { view in

plusButton.addTarget(self, action: #selector(addNewList), for: .touchUpInside)

view.addSubview(plusButton)

plusButton.anchors.top.marginsPin()

plusButton.anchors.trailing.marginsPin()

plusButton.anchors.bottom.marginsPin()

}

for list in customBlockedLists {

let blockListView = BlockListView()

blockListView.contents = .listsBlocked(list)

let cell = tableView.addRow { (contentView) in

contentView.addSubview(blockListView)

blockListView.anchors.edges.pin()

}.onSelect { [unowned self] in

self.didMakeChange = true

let blockedList = userBlockedLists[list.name]

if let blockedList = blockedList {

for domain in self.selectedDomains.keys {

addDomainToBlockedList(domain: domain, for: blockedList.name)

}

}

moveToList()

}

cell.accessoryType = .none

}

}

func saveNewList(userEnteredListName: String) {

DDLogInfo("Adding custom list - \(userEnteredListName)")

addBlockedList(listName: userEnteredListName)

reloadCustomBlockedLists()

}

func close() {

dismiss(animated: true, completion: { [weak self] in

guard let self else { return }

if (self.didMakeChange == true) {

if getIsCombinedBlockListEmpty() {

FirewallController.shared.setEnabled(false, isUserExplicitToggle: true)

} else if (FirewallController.shared.status() == .connected) {

FirewallController.shared.restart()

}

}

})

}

@objc func backButtonClicked() {

dismiss(animated: true)

}

@objc func cancelButtonClicked() {

dismiss(animated: true)

}

@objc func addNewList() {

let tableView = customBlockedListsTableView

let alertController = UIAlertController(title: "Create New List", message: nil, preferredStyle: .alert)

let saveAction = UIAlertAction(title: "Save", style: .default) { [weak self] (_) in

if let txtField = alertController.textFields?.first, let text = txtField.text {

guard let self else { return }

self.saveNewList(userEnteredListName: text)

// if !getBlockedLists().isEmpty {

// tableView.clear()

// }

self.reloadCustomBlockedLists()

}

}

let cancelAction = UIAlertAction(title: "Cancel", style: .cancel, handler: nil)

alertController.addTextField { (textField) in

textField.placeholder = NSLocalizedString("List Name", comment: "")

}

alertController.addAction(saveAction)

alertController.addAction(cancelAction)

self.present(alertController, animated: true, completion: nil)

}

func moveToList() {

for domain in selectedDomains.keys {

deleteUserBlockedDomain(domain: domain)

}

moveToListCompletion?()

let alert = UIAlertController(title: NSLocalizedString("Success!", comment: ""),

message: NSLocalizedString("\(successMessage)", comment: ""),

preferredStyle: .alert)

alert.addAction(UIAlertAction(title: NSLocalizedString("Close", comment: ""),

style: .default,

handler: { _ in

self.dismiss(animated: true)

}))

present(alert, animated: true, completion: nil)

}

}