// // AppleMusicPickerViewController.swift // DashSmash // // Lets the player search Apple Music and pick a song. The picked song is // passed to the TapTempoViewController so the player can tap-in the BPM // before the level starts. // import UIKit import MusicKit final class AppleMusicPickerViewController: UIViewController, UITableViewDataSource, UITableViewDelegate, UISearchBarDelegate { private let searchBar = UISearchBar() private let tableView = UITableView(frame: .zero, style: .plain) private let backButton = UIButton(type: .system) private let titleLabel = UILabel() private let statusLabel = UILabel() private let activity = UIActivityIndicatorView(style: .medium) private var results: [Song] = [] private var pendingSearchTask: Task? private var authState: AppleMusicCoordinator.AuthorizationOutcome = .notDetermined override func viewDidLoad() { super.viewDidLoad() view.backgroundColor = .black setupUI() Task { await ensureAuthorized() } } override var prefersStatusBarHidden: Bool { true } private func setupUI() { titleLabel.text = "APPLE MUSIC" titleLabel.textColor = .white titleLabel.font = UIFont(name: "AvenirNext-Heavy", size: 22) ?? .boldSystemFont(ofSize: 22) titleLabel.translatesAutoresizingMaskIntoConstraints = false view.addSubview(titleLabel) backButton.setTitle("← Back", for: .normal) backButton.titleLabel?.font = UIFont(name: "AvenirNext-Medium", size: 17) ?? .systemFont(ofSize: 17) backButton.setTitleColor(.white, for: .normal) backButton.addTarget(self, action: #selector(backTapped), for: .touchUpInside) backButton.translatesAutoresizingMaskIntoConstraints = false view.addSubview(backButton) searchBar.placeholder = "Search song or artist" searchBar.barStyle = .black searchBar.searchBarStyle = .minimal searchBar.searchTextField.textColor = .white searchBar.delegate = self searchBar.returnKeyType = .search searchBar.translatesAutoresizingMaskIntoConstraints = false view.addSubview(searchBar) statusLabel.textColor = UIColor.white.withAlphaComponent(0.6) statusLabel.font = UIFont(name: "AvenirNext-Medium", size: 14) ?? .systemFont(ofSize: 14) statusLabel.textAlignment = .center statusLabel.numberOfLines = 0 statusLabel.translatesAutoresizingMaskIntoConstraints = false view.addSubview(statusLabel) activity.color = .white activity.hidesWhenStopped = true activity.translatesAutoresizingMaskIntoConstraints = false view.addSubview(activity) tableView.backgroundColor = .clear tableView.separatorColor = UIColor.white.withAlphaComponent(0.15) tableView.dataSource = self tableView.delegate = self tableView.translatesAutoresizingMaskIntoConstraints = false tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell") // Insert tableView BEHIND statusLabel/activity so empty-state text is // not obscured by the (otherwise transparent) empty table area. view.insertSubview(tableView, belowSubview: statusLabel) NSLayoutConstraint.activate([ backButton.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 16), backButton.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor, constant: 12), titleLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor), titleLabel.centerYAnchor.constraint(equalTo: backButton.centerYAnchor), searchBar.topAnchor.constraint(equalTo: backButton.bottomAnchor, constant: 8), searchBar.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 8), searchBar.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -8), tableView.topAnchor.constraint(equalTo: searchBar.bottomAnchor, constant: 8), tableView.leadingAnchor.constraint(equalTo: view.leadingAnchor), tableView.trailingAnchor.constraint(equalTo: view.trailingAnchor), tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor), statusLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor), statusLabel.centerYAnchor.constraint(equalTo: view.centerYAnchor), statusLabel.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 32), statusLabel.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -32), activity.centerXAnchor.constraint(equalTo: view.centerXAnchor), activity.topAnchor.constraint(equalTo: statusLabel.bottomAnchor, constant: 12) ]) } private func ensureAuthorized() async { statusLabel.text = "Requesting Apple Music access…" let outcome = await AppleMusicCoordinator.shared.authorize() authState = outcome print("[DashSmash] MusicAuthorization result: \(outcome)") switch outcome { case .authorized: statusLabel.text = "Search for a song to play through." // If the user typed before authorization completed, run the search now. if let text = searchBar.text, !text.trimmingCharacters(in: .whitespaces).isEmpty { scheduleSearch(query: text, immediate: true) } case .denied: statusLabel.text = "Apple Music access denied.\nEnable it in Settings → Privacy → Media & Apple Music." case .restricted: statusLabel.text = "Apple Music is restricted on this device." case .notDetermined: statusLabel.text = "Apple Music permission was not granted." } } @objc private func backTapped() { navigationController?.popViewController(animated: true) } // MARK: - Searching func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) { scheduleSearch(query: searchText) } func searchBarSearchButtonClicked(_ searchBar: UISearchBar) { searchBar.resignFirstResponder() scheduleSearch(query: searchBar.text ?? "", immediate: true) } private func scheduleSearch(query: String, immediate: Bool = false) { pendingSearchTask?.cancel() let trimmed = query.trimmingCharacters(in: .whitespaces) guard !trimmed.isEmpty else { results = [] tableView.reloadData() statusLabel.text = AppleMusicCoordinator.shared.isAuthorized ? "Search for a song to play through." : statusLabel.text return } // If we haven't yet been granted authorization, don't fire a request // that's guaranteed to fail — defer; ensureAuthorized() will re-trigger. guard authState == .authorized else { print("[DashSmash] Search deferred: not yet authorized (state=\(authState))") statusLabel.text = "Waiting for Apple Music permission…" return } pendingSearchTask = Task { [weak self] in if !immediate { try? await Task.sleep(nanoseconds: 350_000_000) if Task.isCancelled { return } } await self?.runSearch(trimmed) } } private func runSearch(_ query: String) async { statusLabel.text = nil activity.startAnimating() defer { activity.stopAnimating() } do { print("[DashSmash] Apple Music search: \(query)") let songs = try await AppleMusicCoordinator.shared.searchSongs(query: query, limit: 25) print("[DashSmash] Apple Music search returned \(songs.count) songs") results = songs tableView.reloadData() if songs.isEmpty { statusLabel.text = "No results for “\(query)”." } } catch { print("[DashSmash] Apple Music search failed: \(error)") statusLabel.text = "Search failed:\n\(error.localizedDescription)" } } // MARK: - Table func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { results.count } func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) let song = results[indexPath.row] cell.backgroundColor = .black cell.selectionStyle = .gray var config = UIListContentConfiguration.cell() config.text = song.title config.secondaryText = song.artistName config.textProperties.color = .white config.textProperties.font = UIFont(name: "AvenirNext-Bold", size: 16) ?? .boldSystemFont(ofSize: 16) config.secondaryTextProperties.color = UIColor.white.withAlphaComponent(0.6) config.secondaryTextProperties.font = UIFont(name: "AvenirNext-Medium", size: 13) ?? .systemFont(ofSize: 13) cell.contentConfiguration = config return cell } func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { let song = results[indexPath.row] tableView.deselectRow(at: indexPath, animated: true) let tap = TapTempoViewController(track: .appleMusicCatalog(song)) navigationController?.pushViewController(tap, animated: true) } }