export type Immutable = boolean | number | string | undefined | null;
export type ObjectWithImmutables = Record<string, Immutable>;
export interface EqualityCheck<T> {
    (): (current: T) => boolean;
}
/**
 * Possible values a facet can have.
 * Currently functions are not supported
 */
export type Value = string | number | boolean | undefined | null | [] | Record<string, any> | bigint;
export type ExtractFacetValues<T extends ReadonlyArray<Facet<unknown>>> = {
    [K in keyof T]: T[K] extends Facet<infer V> ? V : never;
};
export declare const FACET_FACTORY: unique symbol;
export interface FacetFactory<T> {
    (): Facet<T>;
    factory: typeof FACET_FACTORY;
}
export type ExcludeFacetFactory<T> = T extends FacetFactory<any> ? never : T;
export interface Listener<T> {
    (value: T): void;
}
export type Unsubscribe = () => void;
export type Observe<T> = (listener: Listener<T>) => Unsubscribe;
export interface Facet<T> {
    get: () => Option<T>;
    observe: Observe<T>;
}
export interface WritableFacet<T> extends Facet<T> {
    set: (value: T) => void;
    setWithCallback: (callback: (previousValue: Option<T>) => Option<T>) => void;
}
export interface Update<V> {
    (value: V): void;
}
export type Setter<V> = (callbackSetter: V | ((previousValue: Option<V>) => Option<V>)) => void;
export type Cleanup = Unsubscribe;
export type StartSubscription<V> = (update: Update<V>) => Cleanup;
export declare const isFacet: <T>(value: T | Facet<T>) => value is Facet<T>;
export type FacetProp<T extends Value> = Facet<T> | ExcludeFacetFactory<T>;
export interface Effect<T> {
    (value: T): void | Cleanup;
}
export declare const NO_VALUE: unique symbol;
export type NoValue = typeof NO_VALUE;
export type Option<T> = NoValue | T;
/**
 * Unit of work that can be scheduled within a batch.
 */
export type Task = {
    (): void;
    scheduled?: boolean;
};
/**
 * Function that when executed will have its Facet updates scheduled.
 */
export type Batch = () => void;
/**
 * CSSStyleDeclaration that has FacetDefinition as values and includes Gameface's extended number based properties
 * Based on Gameface's TypeScript definition: https://github.com/Mojang/Mojang_Cohtml/blob/master/src/Scripting/scripted/typescript/ScriptedCSSStyleDeclaration.d.ts
 */
export type FacetCSSStyleDeclaration = {
    alignContent?: FacetProp<string>;
    alignItems?: FacetProp<string>;
    alignSelf?: FacetProp<string>;
    animation?: FacetProp<string>;
    animationDelay?: FacetProp<string>;
    animationDirection?: FacetProp<string>;
    animationDuration?: FacetProp<string>;
    animationFillMode?: FacetProp<string>;
    animationIterationCount?: FacetProp<string>;
    animationName?: FacetProp<string>;
    animationPlayState?: FacetProp<string>;
    animationTimingFunction?: FacetProp<string>;
    background?: FacetProp<string>;
    backgroundColor?: FacetProp<string>;
    backgroundImage?: FacetProp<string>;
    backgroundPosition?: FacetProp<string>;
    backgroundRepeat?: FacetProp<string>;
    backgroundSize?: FacetProp<string>;
    border?: FacetProp<string>;
    borderBottom?: FacetProp<string>;
    borderBottomColor?: FacetProp<string>;
    borderBottomLeftRadius?: FacetProp<string>;
    borderBottomRightRadius?: FacetProp<string>;
    borderBottomStyle?: FacetProp<string>;
    borderBottomWidth?: FacetProp<string>;
    borderColor?: FacetProp<string>;
    borderImage?: FacetProp<string>;
    borderImageOutset?: FacetProp<string>;
    borderImageRepeat?: FacetProp<string>;
    borderImageSlice?: FacetProp<string>;
    borderImageSource?: FacetProp<string>;
    borderImageWidth?: FacetProp<string>;
    borderLeft?: FacetProp<string>;
    borderLeftColor?: FacetProp<string>;
    borderLeftStyle?: FacetProp<string>;
    borderLeftWidth?: FacetProp<string>;
    borderRadius?: FacetProp<string>;
    borderRight?: FacetProp<string>;
    borderRightColor?: FacetProp<string>;
    borderRightStyle?: FacetProp<string>;
    borderRightWidth?: FacetProp<string>;
    borderStyle?: FacetProp<string>;
    borderTop?: FacetProp<string>;
    borderTopColor?: FacetProp<string>;
    borderTopLeftRadius?: FacetProp<string>;
    borderTopRightRadius?: FacetProp<string>;
    borderTopStyle?: FacetProp<string>;
    borderTopWidth?: FacetProp<string>;
    borderWidth?: FacetProp<string>;
    bottom?: FacetProp<string>;
    bottomPX?: FacetProp<number>;
    bottomVH?: FacetProp<number>;
    bottomVW?: FacetProp<number>;
    boxShadow?: FacetProp<string>;
    clipPath?: FacetProp<string>;
    color?: FacetProp<string>;
    contain?: FacetProp<string>;
    cursor?: FacetProp<string>;
    display?: FacetProp<'flex' | 'none'>;
    filter?: FacetProp<string>;
    flex?: FacetProp<string>;
    flexDirection?: FacetProp<string>;
    flexWrap?: FacetProp<string>;
    font?: FacetProp<string>;
    fontFamily?: FacetProp<string>;
    fontFitMode?: FacetProp<string>;
    fontSize?: FacetProp<string>;
    fontStyle?: FacetProp<string>;
    fontWeight?: FacetProp<string>;
    height?: FacetProp<string>;
    heightPX?: FacetProp<number>;
    heightVH?: FacetProp<number>;
    isolation?: FacetProp<string>;
    justifyContent?: FacetProp<string>;
    left?: FacetProp<string>;
    leftPX?: FacetProp<number>;
    leftVH?: FacetProp<number>;
    leftVW?: FacetProp<number>;
    letterSpacing?: FacetProp<string>;
    lineHeight?: FacetProp<string>;
    margin?: FacetProp<string>;
    marginBottom?: FacetProp<string>;
    marginLeft?: FacetProp<string>;
    marginRight?: FacetProp<string>;
    marginTop?: FacetProp<string>;
    mask?: FacetProp<string>;
    maskClip?: FacetProp<string>;
    maskImage?: FacetProp<string>;
    maskMode?: FacetProp<string>;
    maskPosition?: FacetProp<string>;
    maskRepeat?: FacetProp<string>;
    maskSize?: FacetProp<string>;
    maxHeight?: FacetProp<string>;
    maxHeightPX?: FacetProp<number>;
    maxHeightVH?: FacetProp<number>;
    maxWidth?: FacetProp<string>;
    maxWidthPX?: FacetProp<number>;
    maxWidthVW?: FacetProp<number>;
    minHeight?: FacetProp<string>;
    minHeightPX?: FacetProp<number>;
    minHeightVH?: FacetProp<number>;
    minWidth?: FacetProp<string>;
    minWidthPX?: FacetProp<number>;
    minWidthVW?: FacetProp<number>;
    mixBlendMode?: FacetProp<string>;
    opacity?: FacetProp<number>;
    overflow?: FacetProp<string>;
    overflowWrap?: FacetProp<string>;
    overflowX?: FacetProp<string>;
    overflowY?: FacetProp<string>;
    padding?: FacetProp<string>;
    paddingBottom?: FacetProp<string>;
    paddingLeft?: FacetProp<string>;
    paddingRight?: FacetProp<string>;
    paddingTop?: FacetProp<string>;
    perspective?: FacetProp<string>;
    perspectiveOrigin?: FacetProp<string>;
    pointerEvents?: FacetProp<string>;
    position?: FacetProp<string>;
    right?: FacetProp<string>;
    rightPX?: FacetProp<number>;
    rightVH?: FacetProp<number>;
    rightVW?: FacetProp<number>;
    textAlign?: FacetProp<string>;
    textOverflow?: FacetProp<string>;
    textShadow?: FacetProp<string>;
    textTransform?: FacetProp<string>;
    top?: FacetProp<string>;
    topPX?: FacetProp<number>;
    topVH?: FacetProp<number>;
    topVW?: FacetProp<number>;
    transform?: FacetProp<string>;
    transformOrigin?: FacetProp<string>;
    transition?: FacetProp<string>;
    transitionDelay?: FacetProp<string>;
    transitionDuration?: FacetProp<string>;
    transitionProperty?: FacetProp<string>;
    transitionTimingFunction?: FacetProp<string>;
    userSelect?: FacetProp<string>;
    visibility?: FacetProp<string>;
    whiteSpace?: FacetProp<string>;
    width?: FacetProp<string>;
    widthPX?: FacetProp<number>;
    widthVW?: FacetProp<number>;
    zIndex?: FacetProp<number>;
};