/**
 * SnapshotDiff Value Object
 * Represents the differences between two config snapshots
 */
import { FileDiff, type FileDiffData } from './FileDiff.js';
export interface SnapshotDiffData {
    baseSnapshotId: string;
    compareSnapshotId: string;
    changes: FileDiff[];
}
export interface SnapshotDiffSummary {
    added: number;
    modified: number;
    deleted: number;
}
export declare class SnapshotDiff {
    private readonly _baseSnapshotId;
    private readonly _compareSnapshotId;
    private readonly _changes;
    private constructor();
    get baseSnapshotId(): string;
    get compareSnapshotId(): string;
    get changes(): readonly FileDiff[];
    /**
     * Computed summary of changes by status
     */
    get summary(): SnapshotDiffSummary;
    /**
     * Whether there are any changes
     */
    get hasChanges(): boolean;
    /**
     * Create a validated SnapshotDiff
     */
    static create(data: SnapshotDiffData): SnapshotDiff;
    toJSON(): {
        baseSnapshotId: string;
        compareSnapshotId: string;
        changes: FileDiffData[];
        summary: SnapshotDiffSummary;
        hasChanges: boolean;
    };
}
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