import { BaseObservable } from "../BaseObservable";
import { JoinedMap } from "./index";
import { MappedMap } from "./index";
import { FilteredMap } from "./index";
import { BaseObservableValue } from "../value/index";
import { SortedMapList } from "../list/SortedMapList.js";
export interface IMapObserver<K, V> {
    onReset(): void;
    onAdd(key: K, value: V): void;
    onUpdate(key: K, value: V, params: any): void;
    onRemove(key: K, value: V): void;
}
export declare abstract class BaseObservableMap<K, V> extends BaseObservable<IMapObserver<K, V>> {
    constructor();
    emitReset(): void;
    emitAdd(key: K, value: V): void;
    emitUpdate(key: K, value: V, params: any): void;
    emitRemove(key: K, value: V): void;
    join<E extends BaseObservableMap<K, V>>(...otherMaps: Array<E>): JoinedMap<K, V>;
    mapValues<MappedV>(mapper: Mapper<V, MappedV>, updater?: Updater<V, MappedV>): MappedMap<K, V, MappedV>;
    sortValues(comparator: Comparator<V>): SortedMapList;
    filterValues(filter: Filter<K, V>): FilteredMap<K, V>;
    observeSize(): BaseObservableValue<number>;
    abstract [Symbol.iterator](): Iterator<[K, V]>;
    abstract get size(): number;
    abstract get(key: K): V | undefined;
}
export type Mapper<V, MappedV> = (value: V, emitSpontaneousUpdate: any) => MappedV;
export type Updater<V, MappedV> = (params: any, mappedValue?: MappedV, value?: V) => void;
export type Comparator<V> = (a: V, b: V) => number;
export type Filter<K, V> = (v: V, k: K) => boolean;