import XCTest

/// 书签 chrome 状态测试
/// 覆盖：书签列表按钮在零书签时禁用、添加后启用、书签跨重启存活
final class BookmarkChromeStateTests: XCTestCase {

    private let app = XCUIApplication()

    override func setUpWithError() throws {
        continueAfterFailure = false
    }

    /// 零书签时，底部书签列表按钮应禁用
    func testBookmarksListButtonDisabledWhenNoBookmarks() throws {
        app.launchAndOpenSampleBook()
        app.waitForReader()

        app.showReaderChromeIfNeeded()

        let bookmarksButton = app.buttons[IDs.readerBookmarks]
        guard bookmarksButton.waitForExistence(timeout: 3) else {
            throw XCTSkip("书签列表按钮不存在")
        }
        // 零书签时按钮应存在但不可用
        XCTAssertFalse(bookmarksButton.isEnabled, "零书签时书签列表按钮应禁用")
    }

    /// 添加书签后，底部书签列表按钮应启用
    func testBookmarksListButtonEnabledAfterAdding() throws {
        app.launchAndOpenSampleBook()
        app.waitForReader()

        app.showReaderChromeIfNeeded()

        // 添加书签
        let bookmarkButton = app.buttons[IDs.readerBookmark]
        guard bookmarkButton.waitForExistence(timeout: 3) else {
            throw XCTSkip("书签按钮不存在")
        }
        bookmarkButton.tap()

        // 验证书签列表按钮启用
        let bookmarksButton = app.buttons[IDs.readerBookmarks]
        guard bookmarksButton.waitForExistence(timeout: 3) else {
            throw XCTSkip("书签列表按钮不存在")
        }
        XCTAssertTrue(bookmarksButton.isEnabled, "添加书签后书签列表按钮应启用")
    }

    /// 书签跨重启存活
    func testBookmarkSurvivesRestart() {
        app.launchAndOpenSampleBook()
        app.waitForReader()

        // 添加书签
        app.showReaderChromeIfNeeded()
        let bookmarkButton = app.buttons[IDs.readerBookmark]
        bookmarkButton.waitForExistence(timeout: 3)
        bookmarkButton.tap()

        // 等待书签状态确认
        app.waitForDemoReaderState(timeout: 5, description: "bookmarks=1") { $0.bookmarks == 1 }

        // 关闭阅读器
        app.buttons[IDs.readerBack].tap()

        // 重新打开（不重置状态）
        app.launchAndOpenSampleBook(resetsReaderState: false)
        app.waitForReader()

        // 验证书签仍然存在
        app.waitForDemoReaderState(timeout: 5, description: "bookmarks=1 after restart") { $0.bookmarks == 1 }
    }
}