import { EventEmitter } from 'node:events';
import { type BACNetAppData, type ApplicationTag, type PropertyIdentifier, type ApplicationTagValueTypeMap } from '@bacnet-js/client';
import { type BDPropertyEvents, type BDPropertyType, type BDPropertyAccessContext, type BDPropertyValidatorFn, type BDPropertyCoVListener } from './types.js';
import { TaskQueue } from '../taskqueue.js';
/**
 * Abstract base class for all types of properties.
 */
export declare abstract class BDAbstractProperty<Tag extends ApplicationTag, Type extends ApplicationTagValueTypeMap[Tag], Data extends BACNetAppData<Tag, Type> | BACNetAppData<Tag, Type>[]> extends EventEmitter<BDPropertyEvents<Tag, Type, Data>> {
    /**
     * Whether the property representes a single value or an array (or list) of
     * values.
     *
     * @see {@link BDPropertyType}
     */
    readonly type: BDPropertyType;
    /**
     * The BACnet identifier for this property. Must be unique within the
     * properties added to the same object.
     */
    readonly identifier: PropertyIdentifier;
    /**
     * The task queue that consumer-facing methods use to execute tasks.
     * This is set via {@link this.___setTaskQueue} by object instances.
     *
     * @internal
     */
    ___queue: TaskQueue;
    /**
     * The validators for this property.
     *
     * @internal
     */
    ___validators: BDPropertyValidatorFn<Tag, Type, Data>[];
    /**
     * The change-of-value listeners for this property.
     *
     * @internal
     */
    ___cov_listeners: BDPropertyCoVListener<Tag, Type, Data>[];
    constructor(type: BDPropertyType, identifier: PropertyIdentifier);
    /**
     * Consumer-facing method to retrieve property data.
     * Implementations of this method should encapsulate retrieval logic as a
     * task that is executed via this property's task queue.
     */
    abstract getData(ctx?: BDPropertyAccessContext): Data;
    /**
     * Consumer-facing method to set property data.
     * Implementations of this method should encapsulate retrieval logic as a
     * task that is executed via this property's task queue.
     */
    abstract setData(data: Data, priority?: number): Promise<void>;
    /**
     * Adds a validator function to the property's list of validators.
     */
    addValidator(validator: (data: Data) => void): void;
    /**
     * Removes a validator function from the property's list of validators.
     */
    removeValidator(validator: (data: Data) => void): void;
    /**
     * Adds a validator function to the property's list of validators.
     */
    addCoVListener(listener: BDPropertyCoVListener<Tag, Type, Data>): void;
    /**
     * Removes a CoV listener function from the property's list of CoV listeners.
     */
    removeCoVListener(listener: BDPropertyCoVListener<Tag, Type, Data>): void;
    /**
     * @internal
     */
    ___fireCoVListeners(data: Data): Promise<void>;
    /**
     * @internal
     */
    ___validateData(data: Data): void;
    /**
     * Network facing method used during handling of service requests that
     * require reading the property's data. Implementations of this method
     * SHOULD NOT encapsulate retrieval logic via the property's task queue.
     *
     * @internal
     */
    abstract ___readData(index: number, ctx: BDPropertyAccessContext): BACNetAppData | BACNetAppData[];
    /**
     * Network facing method used during handling of service requests that
     * require writing the property's data. Implementations of this method
     * SHOULD NOT encapsulate retrieval logic via the property's task queue.
     *
     * @internal
     */
    abstract ___writeData(value: BACNetAppData<Tag, Type> | BACNetAppData<Tag, Type>[], priority: number): Promise<void>;
    /**
     * Returns an array of related properties to be registered alongside this
     * one. This method may be overridden by extending classes to inform the
     * object layer of their related properties.
     *
     * @internal
     */
    ___getRelatedProperties(): BDAbstractProperty<any, any, any>[];
}
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