forked from zelo72/mastodon-ios
128 lines
4.2 KiB
Swift
128 lines
4.2 KiB
Swift
//
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// DiscoveryForYouViewController.swift
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// Mastodon
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//
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// Created by MainasuK on 2022-4-14.
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//
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import os.log
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import UIKit
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import Combine
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import MastodonUI
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final class DiscoveryForYouViewController: UIViewController, NeedsDependency, MediaPreviewableViewController {
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let logger = Logger(subsystem: "DiscoveryForYouViewController", category: "ViewController")
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weak var context: AppContext! { willSet { precondition(!isViewLoaded) } }
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weak var coordinator: SceneCoordinator! { willSet { precondition(!isViewLoaded) } }
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var disposeBag = Set<AnyCancellable>()
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var viewModel: DiscoveryForYouViewModel!
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let mediaPreviewTransitionController = MediaPreviewTransitionController()
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lazy var tableView: UITableView = {
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let tableView = UITableView()
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tableView.rowHeight = UITableView.automaticDimension
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tableView.estimatedRowHeight = 100
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tableView.separatorStyle = .none
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tableView.backgroundColor = .clear
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return tableView
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}()
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let refreshControl = UIRefreshControl()
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deinit {
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
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}
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}
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extension DiscoveryForYouViewController {
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override func viewDidLoad() {
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super.viewDidLoad()
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view.backgroundColor = ThemeService.shared.currentTheme.value.secondarySystemBackgroundColor
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ThemeService.shared.currentTheme
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.receive(on: DispatchQueue.main)
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.sink { [weak self] theme in
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guard let self = self else { return }
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self.view.backgroundColor = theme.secondarySystemBackgroundColor
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}
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.store(in: &disposeBag)
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tableView.translatesAutoresizingMaskIntoConstraints = false
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view.addSubview(tableView)
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NSLayoutConstraint.activate([
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tableView.topAnchor.constraint(equalTo: view.topAnchor),
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tableView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
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tableView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
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tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
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])
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tableView.delegate = self
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viewModel.setupDiffableDataSource(
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tableView: tableView
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)
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tableView.refreshControl = refreshControl
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refreshControl.addTarget(self, action: #selector(DiscoveryForYouViewController.refreshControlValueChanged(_:)), for: .valueChanged)
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viewModel.$isFetching
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.receive(on: DispatchQueue.main)
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.sink { [weak self] isFetching in
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guard let self = self else { return }
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if !isFetching {
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self.refreshControl.endRefreshing()
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}
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}
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.store(in: &disposeBag)
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}
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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refreshControl.endRefreshing()
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tableView.deselectRow(with: transitionCoordinator, animated: animated)
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}
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}
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extension DiscoveryForYouViewController {
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@objc private func refreshControlValueChanged(_ sender: UIRefreshControl) {
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Task {
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try await viewModel.fetch()
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}
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}
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}
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// MARK: - UITableViewDelegate
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extension DiscoveryForYouViewController: UITableViewDelegate {
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func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
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logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): \(indexPath)")
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guard case let .user(record) = viewModel.diffableDataSource?.itemIdentifier(for: indexPath) else { return }
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guard let user = record.object(in: context.managedObjectContext) else { return }
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let profileViewModel = CachedProfileViewModel(
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context: context,
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mastodonUser: user
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)
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coordinator.present(
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scene: .profile(viewModel: profileViewModel),
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from: self,
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transition: .show
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)
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}
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}
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// MARK: ScrollViewContainer
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extension DiscoveryForYouViewController: ScrollViewContainer {
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var scrollView: UIScrollView? {
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tableView
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}
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}
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