Recordings: Choose app instead of custom title

main/Recordings/TVCAppSearch.swift

@@ -0,0 +1,166 @@
+import UIKit
+
+protocol TVCAppSearchDelegate {
+	func appSearch(didSelect bundleId: String, appName: String?, developer: String?)
+}
+
+class TVCAppSearch: UITableViewController, UISearchBarDelegate {
+	
+	private var dataSource: [AppStoreSearch.Result] = []
+	private var dataSourceLocal: [AppBundleInfo] = []
+	private var isLoading: Bool = false
+	private var searchActive: Bool = false
+	var delegate: TVCAppSearchDelegate?
+	
+	@IBOutlet private var searchBar: UISearchBar!
+	
+	override func viewDidLoad() {
+		super.viewDidLoad()
+		BundleIcon.initCache()
+		dataSourceLocal = AppDB?.appBundleList() ?? []
+	}
+	
+	override var keyCommands: [UIKeyCommand]? {
+		[UIKeyCommand(input: UIKeyCommand.inputEscape, modifierFlags: [], action: #selector(closeThis))]
+	}
+	
+	@objc private func closeThis() {
+		searchBar.endEditing(true)
+		dismiss(animated: true)
+	}
+	
+	// MARK: - Table View Data Source
+	
+	override func numberOfSections(in _: UITableView) -> Int {
+		dataSourceLocal.count > 0 ? 2 : 1
+	}
+	
+	override func tableView(_: UITableView, numberOfRowsInSection section: Int) -> Int {
+		switch section {
+		case 0: return max(1, dataSource.count) + (searchActive ? 1 : 0)
+		case 1: return dataSourceLocal.count
+		default: preconditionFailure()
+		}
+	}
+	
+	override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
+		switch section {
+		case 0: return "AppStore"
+		case 1: return "Found in other recordings"
+		default: preconditionFailure()
+		}
+	}
+	
+	override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+		let cell = tableView.dequeueReusableCell(withIdentifier: "AppStoreSearchCell")!
+		let bundleId: String
+		let altLoadUrl: String?
+		
+		switch indexPath.section {
+		case 0:
+			guard dataSource.count > 0, indexPath.row < dataSource.count else {
+				if indexPath.row == 0 {
+					cell.textLabel?.text = isLoading ? "Loading …" : "no results"
+					cell.isUserInteractionEnabled = false
+				} else {
+					cell.textLabel?.text = "Create manually …"
+				}
+				cell.detailTextLabel?.text = nil
+				cell.imageView?.image = nil
+				return cell
+			}
+			let src = dataSource[indexPath.row]
+			bundleId = src.bundleId
+			altLoadUrl = src.imageURL
+			cell.textLabel?.text = src.name
+			cell.detailTextLabel?.text = src.developer
+		case 1:
+			let src = dataSourceLocal[indexPath.row]
+			bundleId = src.bundleId
+			altLoadUrl = nil
+			cell.textLabel?.text = src.name
+			cell.detailTextLabel?.text = src.author
+		default:
+			preconditionFailure()
+		}
+		
+		cell.imageView?.image = BundleIcon.image(bundleId) {
+			guard let url = altLoadUrl else { return }
+			BundleIcon.download(bundleId, urlStr: url) {
+				DispatchQueue.main.async {
+					tableView.reloadRows(at: [indexPath], with: .automatic)
+				}
+			}
+		}
+		cell.isUserInteractionEnabled = true
+		cell.imageView?.layer.cornerRadius = 6.75
+		cell.imageView?.layer.masksToBounds = true
+		return cell
+	}
+	
+	override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+		tableView.deselectRow(at: indexPath, animated: true)
+		switch indexPath.section {
+		case 0:
+			guard indexPath.row < dataSource.count else {
+				let alert = AskAlert(title: "App Name",
+									 text: "Be as descriptive as possible. Preferably use app bundle id if available. Alternatively use app name or a link to a public repository.",
+									 buttonText: "Set") {
+					self.delegate?.appSearch(didSelect: "un.known", appName: $0.textFields?.first?.text, developer: nil)
+					self.closeThis()
+				}
+				alert.addTextField { $0.placeholder = "com.apple.notes" }
+				alert.presentIn(self)
+				return
+			}
+			let src = dataSource[indexPath.row]
+			delegate?.appSearch(didSelect: src.bundleId, appName: src.name, developer: src.developer)
+		case 1:
+			let src = dataSourceLocal[indexPath.row]
+			delegate?.appSearch(didSelect: src.bundleId, appName: src.name, developer: src.author)
+		default: preconditionFailure()
+		}
+		closeThis()
+	}
+	
+	
+	// MARK: - Search Bar Delegate
+	
+	func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
+		NSObject.cancelPreviousPerformRequests(withTarget: self, selector: #selector(performSearch), object: nil)
+		isLoading = true
+		tableView.reloadData()
+		if searchText.count > 0 {
+			perform(#selector(performSearch), with: nil, afterDelay: 0.4)
+		} else {
+			performSearch()
+		}
+	}
+	
+	/// Internal callback function for delayed text evaluation.
+	/// This way we can avoid unnecessary searches while user is typing.
+	@objc private func performSearch() {
+		isLoading = false
+		let term = searchBar.text?.lowercased() ?? ""
+		searchActive = term.count > 0
+		guard searchActive else {
+			dataSource = []
+			tableView.reloadData()
+			return
+		}
+		AppStoreSearch.search(term) {
+			self.dataSource = $0 ?? []
+			DispatchQueue.main.async {
+				self.tableView.reloadData()
+			}
+		}
+	}
+	
+	func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
+		searchBar.endEditing(true)
+	}
+	
+	func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
+		closeThis()
+	}
+}