import AppKit
import ConjureKit
import Testing
@testable import Conjure

@Test @MainActor func emojiPickerNavigatesCopiesAndRemembersRecentSelections() throws {
    _ = NSApplication.shared
    let suite = "ConjureEmoji.\(UUID().uuidString)"
    let defaults = UserDefaults(suiteName: suite)!
    let pasteboard = NSPasteboard.withUniqueName()
    defer {
        defaults.removePersistentDomain(forName: suite)
        pasteboard.releaseGlobally()
    }
    var query = "face"
    var closed = false
    let picker = EmojiPickerController(defaults: defaults, pasteboard: pasteboard)
    picker.input = { query }
    picker.closed = { closed = true }
    _ = picker.view
    let matches = EmojiCatalog.search(query)
    #expect(picker.handle(#selector(NSResponder.moveRight(_:))))
    #expect(picker.handle(#selector(NSResponder.insertNewline(_:))))
    #expect(pasteboard.string(forType: .string) == matches[1].value)
    #expect(closed)
    #expect(defaults.stringArray(forKey: "recentEmoji") == [matches[1].value])

    closed = false
    query = "no-such-emoji"
    picker.inputChanged()
    picker.copySelection()
    #expect(!closed)
    #expect(pasteboard.string(forType: .string) == matches[1].value)
    query = "👩‍💻"
    picker.inputChanged()
    picker.copySelection()
    #expect(pasteboard.string(forType: .string) == "👩‍💻")

    let reopened = EmojiPickerController(defaults: defaults, pasteboard: pasteboard)
    _ = reopened.view
    reopened.copySelection()
    #expect(pasteboard.string(forType: .string) == "👩‍💻")
    #expect(defaults.stringArray(forKey: "recentEmoji") == ["👩‍💻", matches[1].value])
}

@Test @MainActor func emojiCommandRestoresLauncherSearchOnEscape() throws {
    _ = NSApplication.shared
    let suite = "ConjureEmojiCommand.\(UUID().uuidString)"
    let defaults = UserDefaults(suiteName: suite)!
    defer { defaults.removePersistentDomain(forName: suite) }
    let history = LaunchHistory(defaults: defaults, now: { Date(timeIntervalSinceReferenceDate: 12_000) })
    let launcher = LauncherWindowController(history: history)
    let content = try #require(launcher.window?.contentView)
    func descendants(_ view: NSView) -> [NSView] { [view] + view.subviews.flatMap(descendants) }
    let search = try #require(descendants(content).compactMap { $0 as? NSSearchField }.first)
    search.stringValue = "emoji"
    launcher.controlTextDidChange(Notification(name: NSControl.textDidChangeNotification, object: search))
    _ = launcher.control(search, textView: NSTextView(), doCommandBy: #selector(NSResponder.insertNewline(_:)))
    let grid = try #require(descendants(content).compactMap { $0 as? NSCollectionView }.first)
    search.stringValue = ":woman_technologist:"
    launcher.controlTextDidChange(Notification(name: NSControl.textDidChangeNotification, object: search))
    #expect(grid.numberOfItems(inSection: 0) == 1)
    #expect((grid.dataSource?.collectionView(grid, itemForRepresentedObjectAt: IndexPath(item: 0, section: 0)).view as? NSButton)?.title == "👩‍💻")
    _ = launcher.control(search, textView: NSTextView(), doCommandBy: #selector(NSResponder.cancelOperation(_:)))
    #expect(!descendants(content).contains { $0 === grid })
    #expect(search.stringValue == "emoji")
    let table = try #require(descendants(content).compactMap { $0 as? NSTableView }.first)
    #expect(table.numberOfRows == 1)
}