import type { FileSystem } from "../ports/filesystem.js";
import type { GitClient } from "../ports/git.js";
import { OutlineDiff } from "../parser/diff.js";
export interface FileDiff {
    path: string;
    status: "modified" | "added" | "deleted";
    summary: string;
    diff: OutlineDiff;
}
export interface GraftDiffRefusal {
    path: string;
    reason: string;
    reasonDetail: string;
    next: readonly string[];
    actual: {
        lines: number;
        bytes: number;
    };
}
export interface GraftDiffResult {
    base: string;
    head: string;
    files: FileDiff[];
    refused?: GraftDiffRefusal[] | undefined;
}
export interface GraftDiffOptions {
    cwd: string;
    fs: FileSystem;
    git: GitClient;
    resolveWorkingTreePath: (filePath: string) => string;
    base?: string | undefined;
    head?: string | undefined;
    path?: string | undefined;
    refusalCheck?: ((filePath: string, actual: {
        lines: number;
        bytes: number;
    }) => GraftDiffRefusal | null) | undefined;
}
/**
 * Compute structural diffs between two git refs (or working tree).
 */
export declare function graftDiff(opts: GraftDiffOptions): Promise<GraftDiffResult>;
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