import type { Transparency, DomTier } from '../../contracts/material.js';
import type { MotionPreference } from '../../contracts/motion.js';
import type { Contrast, Density, Scheme, PreferenceStorage } from '../../contracts/preferences.js';
export type { PreferenceKey, PreferenceValues, ResolvedPreferences, UserSettableKey, PreferenceStorage, PortalLayerRoot, LayerEntry, LayerKind, AnnounceOptions, AuraGlassScriptProps, } from '../../contracts/preferences.js';
export { SERVER_SNAPSHOT, STORAGE_KEY, LEGACY_STORAGE_KEY, } from '../../contracts/preferences.js';
export type { Transparency, DomTier, Contrast, Density, Scheme, MotionPreference };
/** Setting axes as the user/app may express them: a concrete value or 'system'. */
export type TransparencySetting = 'system' | Transparency;
export type ContrastSetting = 'system' | Contrast;
export type MotionSetting = 'system' | MotionPreference;
export type SchemeSetting = 'system' | Scheme;
/** OS media-query booleans the resolver reads. Built by media.ts / prepaint. */
export interface OsSignals {
    forcedColors: boolean;
    contrastMore: boolean;
    reducedTransparency: boolean;
    reducedMotion: boolean;
    schemeDark: boolean;
    coarsePointer: boolean;
}
/** Capability signals (CSS.supports + navigator hints). */
export interface CapabilitySignals {
    backdropFilter: boolean;
    saveData: boolean;
    deviceMemory: number | null;
}
/** Values one level (user persist or app props) may contribute. */
export interface PreferenceInput {
    transparency?: TransparencySetting;
    glassOpacity?: number;
    contrast?: ContrastSetting | 'less' | 'custom';
    motion?: MotionSetting;
    scheme?: SchemeSetting;
    density?: Density;
    allowContinuous?: boolean;
    tier?: 'auto' | DomTier;
}
/** Why a resolved axis sits above the app's/user's choice (D-11). */
export type FloorReason = 'forced-colors' | 'prefers-contrast-more' | 'prefers-reduced-transparency' | 'prefers-reduced-motion' | 'no-backdrop-filter' | 'glass-opacity' | 'contrast-more' | 'save-data' | 'low-memory-coarse';
/** Resolved preferences plus the floor explanation surfaced to the panel. */
export interface ResolvedDetail {
    transparency: Transparency;
    contrast: Contrast;
    motion: MotionPreference;
    scheme: Scheme;
    density: Density;
    glassOpacity: number;
    tier: DomTier;
    allowContinuous: boolean;
    floors: {
        transparency: Transparency;
        motion: MotionPreference;
    };
    reasons: readonly FloorReason[];
}
/** Raw persisted record (storage key ag:prefs:v1). */
export interface PersistedPreferences {
    transparency?: TransparencySetting;
    glassOpacity?: number;
    contrast?: ContrastSetting;
    motion?: MotionSetting;
    scheme?: SchemeSetting;
    density?: Density;
    allowContinuous?: boolean;
}
/** Options accepted by createPreferenceStore (MAT-267). */
export interface PreferenceStoreOptions {
    storage?: PreferenceStorage | null;
    storageKey?: string;
    legacyStorageKey?: string;
    app?: PreferenceInput;
    target?: HTMLElement | null;
    window?: Window | null;
}
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