export type EntityKey = string | number;
export interface RegistryState<Entity> {
    ids: EntityKey[];
    records: Record<EntityKey, Entity>;
    indexes: Record<string, Record<string, EntityKey[]>>;
}
export interface RegistryOptions<Entity> {
    readonly key: (entity: Entity) => EntityKey;
    readonly sort?: (left: Entity, right: Entity) => number;
    readonly indexes?: Readonly<Record<string, (entity: Entity) => string | number | readonly (string | number)[]>>;
    readonly validate?: (entity: Entity) => void;
}
export interface EntityRegistry<Entity> {
    empty(): RegistryState<Entity>;
    add(state: RegistryState<Entity>, entity: Entity): boolean;
    addMany(state: RegistryState<Entity>, entities: readonly Entity[]): number;
    put(state: RegistryState<Entity>, entity: Entity): void;
    putMany(state: RegistryState<Entity>, entities: readonly Entity[]): void;
    update(state: RegistryState<Entity>, key: EntityKey, changes: Partial<Entity>): boolean;
    remove(state: RegistryState<Entity>, key: EntityKey): boolean;
    removeMany(state: RegistryState<Entity>, keys: readonly EntityKey[]): number;
    clear(state: RegistryState<Entity>): void;
    one(state: Readonly<RegistryState<Entity>>, key: EntityKey): Entity | undefined;
    all(state: Readonly<RegistryState<Entity>>): readonly Entity[];
    count(state: Readonly<RegistryState<Entity>>): number;
    byIndex(state: Readonly<RegistryState<Entity>>, index: string, value: string | number): readonly Entity[];
    audit(state: Readonly<RegistryState<Entity>>): readonly string[];
}
export declare function forgeRegistry<Entity extends object>(options: RegistryOptions<Entity>): EntityRegistry<Entity>;
//# sourceMappingURL=entities.d.ts.map