import type { Result } from '../../domain/result.js';
export type FileSystemError = {
    type: 'not_found';
} | {
    type: 'parse_failed';
    message: string;
} | {
    type: 'io_failed';
    message: string;
};
export type FileSystem = {
    readonly readJson: <T>(path: string) => Promise<Result<T, FileSystemError>>;
    readonly writeText: (path: string, content: string) => Promise<Result<void, FileSystemError>>;
    readonly writeBytes: (path: string, bytes: Uint8Array) => Promise<Result<void, FileSystemError>>;
    readonly deleteIfExists: (path: string) => Promise<Result<void, FileSystemError>>;
    /**
     * Recursively delete a directory (and all its contents). Used by `logout`
     * to wipe the Playwright persistent browser profile so stale auth cookies
     * don't survive across login attempts. Returns ok even when the
     * directory does not exist — semantics mirror `deleteIfExists`.
     */
    readonly deleteDirIfExists: (path: string) => Promise<Result<void, FileSystemError>>;
};