mastodon-ios/Mastodon/Scene/Discovery/ForYou/DiscoveryForYouViewControll...

174 lines
6.0 KiB
Swift

//
// DiscoveryForYouViewController.swift
// Mastodon
//
// Created by MainasuK on 2022-4-14.
//
import os.log
import UIKit
import Combine
import MastodonUI
import MastodonCore
final class DiscoveryForYouViewController: UIViewController, NeedsDependency, MediaPreviewableViewController {
let logger = Logger(subsystem: "DiscoveryForYouViewController", category: "ViewController")
weak var context: AppContext! { willSet { precondition(!isViewLoaded) } }
weak var coordinator: SceneCoordinator! { willSet { precondition(!isViewLoaded) } }
var disposeBag = Set<AnyCancellable>()
var viewModel: DiscoveryForYouViewModel!
let mediaPreviewTransitionController = MediaPreviewTransitionController()
lazy var tableView: UITableView = {
let tableView = UITableView()
tableView.rowHeight = UITableView.automaticDimension
tableView.estimatedRowHeight = 100
tableView.separatorStyle = .none
tableView.backgroundColor = .clear
return tableView
}()
let refreshControl = RefreshControl()
deinit {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
}
}
extension DiscoveryForYouViewController {
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = ThemeService.shared.currentTheme.value.secondarySystemBackgroundColor
ThemeService.shared.currentTheme
.receive(on: DispatchQueue.main)
.sink { [weak self] theme in
guard let self = self else { return }
self.view.backgroundColor = theme.secondarySystemBackgroundColor
}
.store(in: &disposeBag)
tableView.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(tableView)
tableView.pinToParent()
tableView.delegate = self
viewModel.setupDiffableDataSource(
tableView: tableView,
profileCardTableViewCellDelegate: self
)
tableView.refreshControl = refreshControl
refreshControl.addTarget(self, action: #selector(DiscoveryForYouViewController.refreshControlValueChanged(_:)), for: .valueChanged)
viewModel.$isFetching
.receive(on: DispatchQueue.main)
.sink { [weak self] isFetching in
guard let self = self else { return }
if !isFetching {
self.refreshControl.endRefreshing()
}
}
.store(in: &disposeBag)
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
refreshControl.endRefreshing()
tableView.deselectRow(with: transitionCoordinator, animated: animated)
}
}
extension DiscoveryForYouViewController {
@objc private func refreshControlValueChanged(_ sender: RefreshControl) {
Task {
try await viewModel.fetch()
}
}
}
// MARK: - AuthContextProvider
extension DiscoveryForYouViewController: AuthContextProvider {
var authContext: AuthContext { viewModel.authContext }
}
// MARK: - UITableViewDelegate
extension DiscoveryForYouViewController: UITableViewDelegate {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): \(indexPath)")
guard case let .user(record) = viewModel.diffableDataSource?.itemIdentifier(for: indexPath) else { return }
guard let user = record.object(in: context.managedObjectContext) else { return }
let profileViewModel = CachedProfileViewModel(
context: context,
authContext: viewModel.authContext,
mastodonUser: user
)
_ = coordinator.present(
scene: .profile(viewModel: profileViewModel),
from: self,
transition: .show
)
}
}
// MARK: - ProfileCardTableViewCellDelegate
extension DiscoveryForYouViewController: ProfileCardTableViewCellDelegate {
func profileCardTableViewCell(
_ cell: ProfileCardTableViewCell,
profileCardView: ProfileCardView,
relationshipButtonDidPressed button: ProfileRelationshipActionButton
) {
guard let indexPath = tableView.indexPath(for: cell) else { return }
guard case let .user(record) = viewModel.diffableDataSource?.itemIdentifier(for: indexPath) else { return }
Task {
try await DataSourceFacade.responseToUserFollowAction(
dependency: self,
user: record
)
} // end Task
}
func profileCardTableViewCell(
_ cell: ProfileCardTableViewCell,
profileCardView: ProfileCardView,
familiarFollowersDashboardViewDidPressed view: FamiliarFollowersDashboardView
) {
guard let indexPath = tableView.indexPath(for: cell) else { return }
guard case let .user(record) = viewModel.diffableDataSource?.itemIdentifier(for: indexPath) else { return }
guard let user = record.object(in: context.managedObjectContext) else { return }
let userID = user.id
let _familiarFollowers = viewModel.familiarFollowers.first(where: { $0.id == userID })
guard let familiarFollowers = _familiarFollowers else {
assertionFailure()
return
}
let familiarFollowersViewModel = FamiliarFollowersViewModel(context: context, authContext: authContext)
familiarFollowersViewModel.familiarFollowers = familiarFollowers
_ = coordinator.present(
scene: .familiarFollowers(viewModel: familiarFollowersViewModel),
from: self,
transition: .show
)
}
}
// MARK: ScrollViewContainer
extension DiscoveryForYouViewController: ScrollViewContainer {
var scrollView: UIScrollView { tableView }
}