/**
 * @file Settings Slice
 * @description User preferences and settings with batch updates and DevTools integration
 *
 * This slice manages all user-configurable settings including locale, display preferences,
 * notifications, accessibility options, and feature flags. Uses Immer for immutable updates.
 */
/**
 * Font size options
 */
export type FontSize = 'small' | 'medium' | 'large';
/**
 * Time format options
 */
export type TimeFormat = '12h' | '24h';
/**
 * Theme options
 */
export type Theme = 'light' | 'dark' | 'system';
/**
 * Settings state interface
 */
export interface SettingsState {
    locale: string;
    timezone: string;
    dateFormat: string;
    timeFormat: TimeFormat;
    numberFormat: string;
    theme: Theme;
    notificationsEnabled: boolean;
    soundEnabled: boolean;
    desktopNotifications: boolean;
    emailNotifications: boolean;
    reducedMotion: boolean;
    highContrast: boolean;
    fontSize: FontSize;
    keyboardShortcutsEnabled: boolean;
    features: Record<string, boolean>;
    analyticsEnabled: boolean;
    crashReportingEnabled: boolean;
}
/**
 * Settings actions interface
 */
export interface SettingsActions {
    /** Set the user's locale (e.g., 'en-US', 'fr-FR') */
    setLocale: (locale: string) => void;
    /** Set the user's timezone (IANA timezone, e.g., 'America/New_York') */
    setTimezone: (timezone: string) => void;
    /** Set date format pattern (e.g., 'MM/DD/YYYY') */
    setDateFormat: (format: string) => void;
    /** Set time format preference (12h or 24h) */
    setTimeFormat: (format: TimeFormat) => void;
    /** Set number format locale (e.g., 'en-US' for 1,234.56) */
    setNumberFormat: (format: string) => void;
    /** Set color theme preference */
    setTheme: (theme: Theme) => void;
    /** Enable or disable all notifications */
    setNotificationsEnabled: (enabled: boolean) => void;
    /** Enable or disable notification sounds */
    setSoundEnabled: (enabled: boolean) => void;
    /** Enable or disable desktop/browser notifications */
    setDesktopNotifications: (enabled: boolean) => void;
    /** Enable or disable email notifications */
    setEmailNotifications: (enabled: boolean) => void;
    /** Enable or disable reduced motion for animations */
    setReducedMotion: (enabled: boolean) => void;
    /** Enable or disable high contrast mode */
    setHighContrast: (enabled: boolean) => void;
    /** Set font size preference */
    setFontSize: (size: FontSize) => void;
    /** Enable or disable keyboard shortcuts */
    setKeyboardShortcutsEnabled: (enabled: boolean) => void;
    /** Enable or disable analytics tracking */
    setAnalyticsEnabled: (enabled: boolean) => void;
    /** Enable or disable crash reporting */
    setCrashReportingEnabled: (enabled: boolean) => void;
    /** Update multiple settings at once */
    updateSettings: (settings: Partial<SettingsState>) => void;
    /** Update display-related settings as a batch */
    updateDisplaySettings: (settings: Partial<Pick<SettingsState, 'locale' | 'timezone' | 'dateFormat' | 'timeFormat' | 'numberFormat' | 'theme'>>) => void;
    /** Update accessibility settings as a batch */
    updateAccessibilitySettings: (settings: Partial<Pick<SettingsState, 'reducedMotion' | 'highContrast' | 'fontSize' | 'keyboardShortcutsEnabled'>>) => void;
    /** Update notification settings as a batch */
    updateNotificationSettings: (settings: Partial<Pick<SettingsState, 'notificationsEnabled' | 'soundEnabled' | 'desktopNotifications' | 'emailNotifications'>>) => void;
    /** Update privacy settings as a batch */
    updatePrivacySettings: (settings: Partial<Pick<SettingsState, 'analyticsEnabled' | 'crashReportingEnabled'>>) => void;
    /** Set a single feature flag */
    setFeatureFlag: (flag: string, enabled: boolean) => void;
    /** Set multiple feature flags (merges with existing) */
    setFeatureFlags: (flags: Record<string, boolean>) => void;
    /** Replace all feature flags from server sync */
    syncFeatureFlags: (flags: Record<string, boolean>) => void;
    /** Check if a feature flag is enabled */
    isFeatureEnabled: (flag: string) => boolean;
    /** Reset all settings to defaults */
    resetSettings: () => void;
    /** Reset display settings to defaults */
    resetDisplaySettings: () => void;
    /** Reset accessibility settings to defaults */
    resetAccessibilitySettings: () => void;
    /** Reset notification settings to defaults */
    resetNotificationSettings: () => void;
}
/**
 * Default settings (used for reset and initial state)
 */
declare const defaultSettings: SettingsState;
/**
 * Default display settings subset
 */
declare const defaultDisplaySettings: {
    locale: string;
    timezone: string;
    dateFormat: string;
    timeFormat: TimeFormat;
    numberFormat: string;
    theme: Theme;
};
/**
 * Default accessibility settings subset
 */
declare const defaultAccessibilitySettings: {
    reducedMotion: boolean;
    highContrast: boolean;
    fontSize: FontSize;
    keyboardShortcutsEnabled: boolean;
};
/**
 * Default notification settings subset
 */
declare const defaultNotificationSettings: {
    notificationsEnabled: boolean;
    soundEnabled: boolean;
    desktopNotifications: boolean;
    emailNotifications: boolean;
};
/**
 * Settings slice using createSlice factory for automatic DevTools action naming
 *
 * All actions are automatically prefixed with "settings/" in DevTools, e.g.:
 * - settings/setLocale
 * - settings/updateDisplaySettings
 * - settings/setFeatureFlag
 */
export declare const settingsSlice: import('zustand').StateCreator<SettingsState & SettingsActions & Record<string, (...args: never[]) => unknown>, [["zustand/immer", never], ["zustand/devtools", never]], [], SettingsState & SettingsActions & Record<string, (...args: never[]) => unknown>>;
export type SettingsSlice = SettingsState & SettingsActions;
export { defaultSettings, defaultDisplaySettings, defaultAccessibilitySettings, defaultNotificationSettings, };