import { type EventDef, type StateMachineDef } from "./state-machine.js";
import { type TaskState } from "./types.js";
export type TaskEvent = "plan" | "start" | "complete" | "archive";
export declare const defaultStateMachine: {
    readonly initial: "draft";
    readonly states: readonly ["draft", "planned", "in-progress", "done", "archived"];
    readonly events: {
        readonly plan: {
            readonly from: readonly ["draft"];
            readonly to: "planned";
        };
        readonly start: {
            readonly from: readonly ["planned"];
            readonly to: "in-progress";
        };
        readonly complete: {
            readonly from: readonly ["in-progress"];
            readonly to: "done";
        };
        readonly archive: {
            readonly from: "*";
            readonly to: "archived";
        };
    };
};
export declare function resolveStateMachine(stateMachine?: StateMachineDef): StateMachineDef;
export declare function assertEvent<TState extends string, TEvent extends string>(machine: StateMachineDef<TState, TEvent>, fromState: TState, eventName: TEvent): EventDef<TState>;
export declare function assertTransition(from: TaskState, to: TaskState): void;
export declare function assertTransition<TState extends string, TEvent extends string>(machine: StateMachineDef<TState, TEvent>, from: TState, to: TState): void;