import { EventBus } from '../utils/EventBus';
import { ErrorOpt } from './ErrorOpt';
export declare type PlayerCommand = {
    player: string;
};
export declare type Reducer<State, Command> = (state: State, command: Command) => State;
export declare class StateHandler<State, Command extends PlayerCommand> {
    state: State;
    stateBus: EventBus<State>;
    reducer: Reducer<State, Command>;
    commandValidator: (state: State, command: Command) => ErrorOpt;
    commandBus: EventBus<Command>;
    constructor(initState: State, reducer: Reducer<State, Command>, commandValidator?: (state: State, command: Command) => ErrorOpt);
    receive(command: Command): ErrorOpt;
    setState(state: State): void;
}