import { PixelColorway, PixelDieType } from "@systemic-games/pixels-core-animation";
import { EventReceiver } from "@systemic-games/pixels-core-utils";
import { PixelInfo } from "./PixelInfo";
import { PixelRollState } from "./PixelRollState";
/**
 * The mutable properties of {@link PixelInfoNotifier}.
 * @category Pixels
 */
export type PixelInfoNotifierMutableProps = Pick<PixelInfo, (typeof PixelInfoNotifier.MutablePropsList)[number]>;
/**
 * Abstract implementation of {@link PixelInfo} type with the addition
 * of events that are emitted when mutable properties change.
 * The concrete implementation is responsible of calling the
 * {@link PixelInfoNotifier.emitPropertyEvent()} function when a property is mutated.
 * @category Pixels
 */
export declare abstract class PixelInfoNotifier<MutableProps extends PixelInfoNotifierMutableProps = PixelInfoNotifierMutableProps, Type extends PixelInfo = PixelInfo> implements PixelInfo {
    static MutablePropsList: readonly (keyof PixelInfo)[];
    private readonly _infoEvEmitter;
    abstract type: "die" | "charger" | "bootloader";
    readonly isNotifier = true;
    abstract get systemId(): string;
    abstract get pixelId(): number;
    abstract get name(): string;
    abstract get ledCount(): number;
    abstract get colorway(): PixelColorway;
    abstract get dieType(): PixelDieType;
    abstract get firmwareDate(): Date;
    abstract get rssi(): number;
    abstract get batteryLevel(): number;
    abstract get isCharging(): boolean;
    abstract get rollState(): PixelRollState;
    abstract get currentFace(): number;
    abstract get currentFaceIndex(): number;
    constructor();
    /**
     * Adds the given listener function for the specified property.
     * @param propertyName The name of the property.
     * @param listener The callback function.
     */
    addPropertyListener<K extends string & keyof MutableProps>(propertyName: K, listener: EventReceiver<Type>): void;
    /**
     * Removes the given listener function for the specified property.
     * @param propertyName The name of the property.
     * @param listener The callback function to unregister.
     */
    removePropertyListener<K extends string & keyof MutableProps>(propertyName: K, listener: EventReceiver<Type>): void;
    /**
     * Emit a Pixel event for the specified property.
     * This function should be called by the concrete type whenever
     * the a property's value changes.
     * @param propertyName Event name.
     */
    protected emitPropertyEvent<K extends string & keyof MutableProps>(propertyName: K): void;
}
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