import XCTest

final class SettingsExtendedTests: XCTestCase {
    private let app = XCUIApplication()

    override func setUpWithError() throws {
        continueAfterFailure = false
    }

    private func openSettings() {
        app.launchAndOpenSampleBook()
        app.waitForReader()
        app.showReaderChromeIfNeeded()

        XCTAssertTrue(app.buttons[IDs.readerSettings].waitForExistence(timeout: 5))
        app.buttons[IDs.readerSettings].tap()
        XCTAssertTrue(app.waitForSettingsPanel())
    }

    func testBrightnessSliderExists() {
        openSettings()
        let slider = app.sliders[IDs.settingsBrightness]
        XCTAssertTrue(slider.waitForExistence(timeout: 3), "亮度滑块未出现")
    }

    func testLineHeightControl() {
        openSettings()

        for title in ["紧凑", "标准", "宽松"] {
            XCTAssertTrue(
                app.selectSettingsPillOption(pillIdentifier: IDs.settingsLineHeight, optionTitle: title),
                "行距应可切换到\(title)"
            )
        }

        app.buttons[IDs.settingsDone].tap()
        XCTAssertTrue(app.buttons[IDs.readerBack].waitForExistence(timeout: 5))
    }

    func testDisplayTypeFromSettings() {
        openSettings()
        XCTAssertTrue(
            app.selectSettingsPillOption(pillIdentifier: IDs.settingsDisplayType, optionTitle: "横滑"),
            "翻页方式应可切换到横滑"
        )

        app.buttons[IDs.settingsDone].tap()
        app.waitForDemoReaderState(timeout: 5, description: "display=horizontalScroll") { $0.display == "horizontalScroll" }
    }

    func testAllThemeButtonsExist() {
        openSettings()
        for index in 0...5 {
            let themeButton = app.buttons[IDs.settingsTheme(index)]
            XCTAssertTrue(themeButton.waitForExistence(timeout: 3), "主题按钮 \(index) 未出现")
        }
    }

    /// 面板是固定高度布局，所有控件一屏内可达，不需要滚动
    func testAllSettingsControlsReachableWithoutScrolling() {
        openSettings()

        XCTAssertTrue(app.sliders[IDs.settingsFontSize].waitForExistence(timeout: 3))
        XCTAssertTrue(app.sliders[IDs.settingsBrightness].waitForExistence(timeout: 3))
        XCTAssertTrue(app.buttons[IDs.settingsLineHeight].waitForExistence(timeout: 3))
        XCTAssertTrue(app.buttons[IDs.settingsDisplayType].waitForExistence(timeout: 3))
    }
}