import type { Workout } from "../../schema/training-plan.js";
/**
 * Tracks all user modifications to the plan.
 * These are stored as overlays on top of the original plan data.
 */
export interface PlanChanges {
    moved: Record<string, string>;
    edited: Record<string, Partial<Workout>>;
    deleted: string[];
    added: Record<string, {
        date: string;
        workout: Workout;
    }>;
    weekOffset: number;
}
export declare function emptyChanges(): PlanChanges;
export declare function loadChanges(): PlanChanges;
export declare function saveChanges(changes: PlanChanges): void;
export declare function generateWorkoutId(): string;
export declare function getWorkoutDate(workoutId: string, originalDate: string, changes: PlanChanges): string;
export declare function getEffectiveWorkout(workout: Workout, changes: PlanChanges): Workout;
export declare function isWorkoutDeleted(workoutId: string, changes: PlanChanges): boolean;