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//
// LocationViewController.swift
// MullvadVPN
//
// Created by pronebird on 02/05/2019.
// Copyright © 2019 Mullvad VPN AB. All rights reserved.
//
import MullvadLogging
import MullvadREST
import MullvadSettings
import MullvadTypes
import UIKit
protocol LocationViewControllerDelegate: AnyObject {
func didRequestRouteToCustomLists(_ controller: LocationViewController)
}
final class LocationViewController: UIViewController {
private let searchBar = UISearchBar()
private let tableView = UITableView(frame: .zero, style: .grouped)
private let topContentView = UIStackView()
private let filterView = RelayFilterView()
private var dataSource: LocationDataSource?
private var cachedRelays: CachedRelays?
private var filter = RelayFilter()
var relayLocations: UserSelectedRelays?
weak var delegate: LocationViewControllerDelegate?
var customListRepository: CustomListRepositoryProtocol
override var preferredStatusBarStyle: UIStatusBarStyle {
.lightContent
}
var filterViewShouldBeHidden: Bool {
return (filter.ownership == .any) && (filter.providers == .any)
}
var navigateToFilter: (() -> Void)?
var didSelectRelays: ((UserSelectedRelays) -> Void)?
var didUpdateFilter: ((RelayFilter) -> Void)?
var didFinish: (() -> Void)?
init(customListRepository: CustomListRepositoryProtocol) {
self.customListRepository = customListRepository
super.init(nibName: nil, bundle: nil)
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
// MARK: - View lifecycle
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .secondaryColor
navigationItem.title = NSLocalizedString(
"NAVIGATION_TITLE",
tableName: "SelectLocation",
value: "Select location",
comment: ""
)
navigationItem.leftBarButtonItem = UIBarButtonItem(
title: NSLocalizedString(
"NAVIGATION_TITLE",
tableName: "SelectLocation",
value: "Filter",
comment: ""
),
primaryAction: UIAction(handler: { [weak self] _ in
self?.navigateToFilter?()
})
)
navigationItem.rightBarButtonItem = UIBarButtonItem(
systemItem: .done,
primaryAction: UIAction(handler: { [weak self] _ in
self?.didFinish?()
})
)
setUpDataSources()
setUpTableView()
setUpTopContent()
view.addConstrainedSubviews([topContentView, tableView]) {
topContentView.pinEdgesToSuperviewMargins(.all().excluding(.bottom))
tableView.pinEdgesToSuperview(.all().excluding(.top))
tableView.topAnchor.constraint(equalTo: topContentView.bottomAnchor)
}
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
tableView.flashScrollIndicators()
}
// MARK: - Public
func setCachedRelays(_ cachedRelays: CachedRelays, filter: RelayFilter) {
self.cachedRelays = cachedRelays
self.filter = filter
if filterViewShouldBeHidden {
filterView.isHidden = true
} else {
filterView.isHidden = false
filterView.setFilter(filter)
}
dataSource?.setRelays(cachedRelays.relays, selectedRelays: relayLocations, filter: filter)
}
func refreshCustomLists() {
dataSource?.refreshCustomLists(selectedRelays: relayLocations)
}
// MARK: - Private
private func setUpDataSources() {
let allLocationDataSource = AllLocationDataSource()
let customListsDataSource = CustomListsDataSource(repository: customListRepository)
dataSource = LocationDataSource(
tableView: tableView,
allLocations: allLocationDataSource,
customLists: customListsDataSource
)
dataSource?.didSelectRelayLocations = { [weak self] locations in
self?.didSelectRelays?(locations)
}
dataSource?.didTapEditCustomLists = { [weak self] in
guard let self else { return }
delegate?.didRequestRouteToCustomLists(self)
}
if let cachedRelays {
dataSource?.setRelays(cachedRelays.relays, selectedRelays: relayLocations, filter: filter)
}
}
private func setUpTableView() {
tableView.backgroundColor = view.backgroundColor
tableView.separatorColor = .secondaryColor
tableView.separatorInset = .zero
tableView.estimatedRowHeight = 53
tableView.indicatorStyle = .white
tableView.keyboardDismissMode = .onDrag
tableView.accessibilityIdentifier = .selectLocationTableView
tableView.sectionHeaderHeight = 56.0
}
private func setUpTopContent() {
topContentView.axis = .vertical
topContentView.addArrangedSubview(filterView)
topContentView.addArrangedSubview(searchBar)
filterView.isHidden = filterViewShouldBeHidden
filterView.didUpdateFilter = { [weak self] in
guard let self else { return }
filter = $0
didUpdateFilter?($0)
if let cachedRelays {
setCachedRelays(cachedRelays, filter: filter)
}
}
setUpSearchBar()
}
private func setUpSearchBar() {
searchBar.delegate = self
searchBar.searchBarStyle = .minimal
searchBar.layer.cornerRadius = 8
searchBar.clipsToBounds = true
searchBar.placeholder = NSLocalizedString(
"SEARCHBAR_PLACEHOLDER",
tableName: "SelectLocation",
value: "Search for...",
comment: ""
)
searchBar.searchTextField.accessibilityIdentifier = .selectLocationSearchTextField
UITextField.SearchTextFieldAppearance.inactive.apply(to: searchBar)
}
}
extension LocationViewController: UISearchBarDelegate {
func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
dataSource?.filterRelays(by: searchText)
}
func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
UITextField.SearchTextFieldAppearance.active.apply(to: searchBar)
}
func searchBarTextDidEndEditing(_ searchBar: UISearchBar) {
UITextField.SearchTextFieldAppearance.inactive.apply(to: searchBar)
}
}
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