import XCTest

/// Board list → lanes → cards → card detail, then an edit that has to reach disk — the one
/// end-to-end walk of the mobile MVP's navigation stack (`BoardRoute`'s three destinations).
final class BoardsNavigationUITests: XCTestCase {

    @MainActor
    func testBoardsNavigationAndTitleEdit() throws {
        let (app, root) = XCUIApplication.launchedWithFixtureBoard()

        // Boards is the app's root screen (`BoardsTabView`), so no navigation is needed to reach
        // it. The row's label is the flattened `BoardSummaryRow` — title plus the "N lanes · N
        // cards · modified" subtitle `BoardIndexStore`'s first scan fills in.
        let boardRow = app.element(labelContaining: RichBoard.title)
        XCTAssertTrue(
            boardRow.waitForExistence(timeout: XCUIApplication.uiTimeout),
            "the \"\(RichBoard.title)\" row never appeared — check the fixture copy or the first scan"
        )
        boardRow.tap()

        let laneRow = app.element(labelContaining: RichBoard.firstLane)
        XCTAssertTrue(
            laneRow.waitForExistence(timeout: XCUIApplication.uiTimeout),
            "the \"\(RichBoard.firstLane)\" lane row never appeared"
        )
        laneRow.tap()

        let cardRow = app.element(labelContaining: RichBoard.firstLaneFirstCard)
        XCTAssertTrue(
            cardRow.waitForExistence(timeout: XCUIApplication.uiTimeout),
            "the \"\(RichBoard.firstLaneFirstCard)\" card row never appeared"
        )
        cardRow.tap()

        // CardDetailScreen: the only `textField` on this screen is the title
        // (`Section("Title")`) — the body is a `TextEditor`, which is a `textView`.
        let titleField = app.textFields.firstMatch
        XCTAssertTrue(
            titleField.waitForExistence(timeout: XCUIApplication.uiTimeout),
            "CardDetailScreen's title field never appeared"
        )
        XCTAssertEqual(
            titleField.value as? String, RichBoard.firstLaneFirstCard,
            "the title field did not seed with the fixture card's own title"
        )

        let sentinel = "Retitled by UI test"
        titleField.tap()
        // Select-all via a hardware-keyboard shortcut (iOS answers ⌘A the same as macOS when a
        // keyboard is attached, which the Simulator always presents one as) rather than a
        // backspace-per-character workaround, whose delete count only works if the tap happened
        // to land the cursor at the end of the existing text.
        titleField.typeKey("a", modifierFlags: .command)
        titleField.typeText(sentinel)

        // Commit the way the screen commits (`CardDetailScreen.body`'s `.confirmationAction`):
        // the Done button folds `commitAll()` in and drops focus, without navigating back.
        app.navigationBars.buttons["Done"].tap()

        XCTAssertTrue(
            waitForFile(under: root, containing: sentinel),
            "the retitled card never landed on disk under \(root.path)"
        )
    }
}