import { MutableChatRequestModel } from '@theia/ai-chat';
import { URI } from '@theia/core/lib/common/uri';
import { FileService } from '@theia/filesystem/lib/browser/file-service';
import { WorkspaceService } from '@theia/workspace/lib/browser';
import { ILogger } from '@theia/core';
export declare const FileEditBackupService: unique symbol;
/**
 * Service for managing file backup operations during Claude Code edit sessions.
 *
 * This service handles the retrieval of original file content from backup files
 * created by the file backup hooks in ClaudeCodeServiceImpl. The backup hooks
 * run before file modification tools (Write, Edit, MultiEdit) and create backups
 * in the `.claude/.edit-baks/{session_id}/` directory structure.
 *
 * @see packages/ai-claude-code/src/node/claude-code-service-impl.ts#ensureFileBackupHook
 * The coupling with the backup hooks is intentional - this service reads from
 * the same backup location that the hooks write to.
 */
export interface FileEditBackupService {
    /**
     * Retrieves the original content of a file from its backup.
     *
     * This method reads from backup files created by the file backup hooks
     * that are installed by ClaudeCodeServiceImpl.ensureFileBackupHook().
     *
     * @param workspaceUri The URI of the file to get backup content for
     * @param sessionId The Claude session ID used for backup organization
     * @returns The original file content, or undefined if no backup exists
     */
    getOriginal(workspaceUri: URI, sessionId: string | undefined): Promise<string | undefined>;
    /**
     * Cleans up backup files for a completed chat session.
     *
     * This method removes the backup directory structure for the given session
     * from all workspaces that have change set elements.
     *
     * @param request The chat request model containing session and change set information
     */
    cleanUp(request: MutableChatRequestModel): Promise<void>;
    /**
     * Gets the backup location for a workspace root.
     *
     * This must match the backup location used by the file backup hooks
     * in ClaudeCodeServiceImpl.
     *
     * @param workspaceRoot The workspace root URI
     * @returns The backup directory URI
     */
    getLocation(workspaceRoot: URI): URI;
}
export declare class FileEditBackupServiceImpl implements FileEditBackupService {
    protected readonly fileService: FileService;
    protected readonly workspaceService: WorkspaceService;
    protected readonly logger: ILogger;
    getLocation(workspaceRoot: URI): URI;
    getOriginal(workspaceUri: URI, sessionId: string | undefined): Promise<string | undefined>;
    cleanUp(request: MutableChatRequestModel): Promise<void>;
}
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