import Service from '@ember/service';
import { Theme } from "../utils/themes";
import { LocalStorageService } from 'ember-browser-services/types';
declare class ThemeManagerService extends Service {
    storage: LocalStorageService;
    private callbacks;
    /**
     * @public
     * @abstract
     *
     * Callback for when the theme updates
     *
     * @param currentTheme
     * @param wasSaved
     */
    /**
     * @public
     * @abstract
     *
     * Callback for when the theme updates
     *
     * @param currentTheme
     * @param wasSaved
     */
    onUpdateTheme?(currentTheme: Theme, wasSaved: boolean): void;
    /**
     * @public
     *
     * Represents the currently selected theme.
     * Must be one of THEMES
     */
    currentTheme: Theme;
    /**
     * @public
     *
     * Whether the setup() method has been called
     */
    isSetup: boolean;
    /**
     * @public
     *
     * Indicator if theme switching is allowed or not.
     *
     * NOTE:
     *  there is a bug that has been carried over from the previous implementation
     *  where this flag is only for UI purposes and doesn't actually provide
     *  safety for preventing the theme from being switched.
     */
    isThemeSwitchingEnabled: boolean;
    /**
     * @public
     *
     * Override the currently selected theme, and don't allow theme switching in navbar
     * Useful if a route does not support any other theme
     * The overridden theme can later be restored using clearForceSelectedTheme
     *
     * @param {THEMES} theme
     */
    /**
     * @public
     *
     * Override the currently selected theme, and don't allow theme switching in navbar
     * Useful if a route does not support any other theme
     * The overridden theme can later be restored using clearForceSelectedTheme
     *
     * @param {THEMES} theme
     */
    forceSelectTheme(theme: Theme): void;
    /**
     * @public
     *
     * Restores the theme previously overridden by forceSelectTheme
     * Also restores the previous value of isThemeSwitchingEnabled
     *
     * @param {THEMES} theme
     */
    /**
     * @public
     *
     * Restores the theme previously overridden by forceSelectTheme
     * Also restores the previous value of isThemeSwitchingEnabled
     *
     * @param {THEMES} theme
     */
    clearForceSelectedTheme(): void;
    registerThemeSwitchListener(callback: (theme: Theme) => void): void;
    /**
     * @public
     *
     * Initializes the Theme Manager with a customizable defaultTheme
     *
     * @param {THEMES} defaultTheme
     */
    /**
     * @public
     *
     * Initializes the Theme Manager with a customizable defaultTheme
     *
     * @param {THEMES} defaultTheme
     */
    setup(defaultTheme?: Theme): void;
    /**
     * @public
     * @deprecated
     *
     * At the moment, there are only two themes.
     * This getter returns the theme that is currently *not* active.
     *
     * If more themes are added, it's likely that either this getter
     * will be removed
     */
    get alternateTheme(): "theme-dark" | "theme-light";
    get inactiveThemes(): ("theme-dark" | "theme-light")[];
    /**
     * @public
     *
     * Changes the currentTheme
     *
     * @param {THEME} theme - theme to change to
     * @param {Object}
     * @property {Boolean} shouldSaveTheme - flag to control if the theme change should be persisted to localStorage
     */
    /**
     * @public
     *
     * Changes the currentTheme
     *
     * @param {THEME} theme - theme to change to
     * @param {Object}
     * @property {Boolean} shouldSaveTheme - flag to control if the theme change should be persisted to localStorage
     */
    selectTheme(theme: Theme, { shouldSaveTheme }?: {
        shouldSaveTheme?: boolean | undefined;
    }): void;
    private _selectTheme;
    notifyThemeChange(shouldSaveTheme: boolean): void;
    /**
     * @public
     *
     * Toggles between the LIGHT and DARK themes
     *
     * @param {Object}
     * @property {Boolean} shouldSaveTheme - flag to control if the theme change should be persisted to localStorage
     */
    /**
     * @public
     *
     * Toggles between the LIGHT and DARK themes
     *
     * @param {Object}
     * @property {Boolean} shouldSaveTheme - flag to control if the theme change should be persisted to localStorage
     */
    toggleTheme({ shouldSaveTheme }?: {
        shouldSaveTheme?: boolean | undefined;
    }): void;
    /**
     * @private
     *
     * The theme that was active before forceSelectTheme overrode it
     */
    _previouslySelectedTheme: Theme;
    /**
     * @private
     *
     * The value of isThemeSwitchingEnabled before forceSelectTheme was called
     */
    _previousIsThemeSwitchingEnabled: boolean;
}
declare module '@ember/service' {
    interface Registry {
        'theme-manager': ThemeManagerService;
    }
}
export { ThemeManagerService as default };