import { CourierComponentThemeMode, SystemThemeMode } from '@trycourier/courier-ui-core';
import { CourierInboxTheme } from './courier-inbox-theme';
export interface CourierInboxThemeSubscription {
    manager: CourierInboxThemeManager;
    unsubscribe: () => void;
}
export declare class CourierInboxThemeManager {
    private readonly THEME_CHANGE_EVENT;
    private _theme;
    private _lightTheme;
    private _darkTheme;
    private _target;
    private _subscriptions;
    private _userMode;
    private _systemMode;
    private _systemThemeCleanup;
    setLightTheme(theme: CourierInboxTheme): void;
    setDarkTheme(theme: CourierInboxTheme): void;
    constructor(initialTheme: CourierInboxTheme);
    /**
     * Get the current system theme
     */
    get currentSystemTheme(): SystemThemeMode;
    /**
     * Get the current theme
     */
    getTheme(): CourierInboxTheme;
    /**
     * Update the theme
     */
    private updateTheme;
    /**
     * Set the theme and notify all listeners
     */
    private setTheme;
    /**
     * Set the mode and notify all listeners
     */
    setMode(mode: CourierComponentThemeMode): void;
    get mode(): CourierComponentThemeMode;
    /**
     * Subscribe to theme changes
     * @param {Function} callback - Function to run when the theme changes
     * @returns {CourierInboxThemeSubscription} - Object with remove method to stop listening
     */
    subscribe(callback: (theme: CourierInboxTheme) => void): CourierInboxThemeSubscription;
    /**
     * Clean up event listeners
     */
    cleanup(): void;
}