import { URI } from "@codingame/monaco-vscode-api/vscode/vs/base/common/uri";
import { TextEdit } from "@codingame/monaco-vscode-api/vscode/vs/editor/common/languages";
import { ICellEditOperation } from "@codingame/monaco-vscode-api/vscode/vs/workbench/contrib/notebook/common/notebookCommon";
import { IModifiedEntryTelemetryInfo } from "@codingame/monaco-vscode-api/vscode/vs/workbench/contrib/chat/common/editing/chatEditingService";
export declare enum FileOperationType {
    Create = "create",
    Delete = "delete",
    Rename = "rename",
    TextEdit = "textEdit",
    NotebookEdit = "notebookEdit"
}
/**
 * Base interface for all file operations in the checkpoint timeline
 */
export interface IFileOperation {
    readonly type: FileOperationType;
    readonly uri: URI;
    readonly requestId: string;
    readonly epoch: number;
}
/**
 * Operation representing the creation of a new file
 */
export interface IFileCreateOperation extends IFileOperation {
    readonly type: FileOperationType.Create;
    readonly initialContent: string;
    readonly notebookViewType?: string;
    readonly telemetryInfo: IModifiedEntryTelemetryInfo;
}
/**
 * Operation representing the deletion of a file
 */
export interface IFileDeleteOperation extends IFileOperation {
    readonly type: FileOperationType.Delete;
    readonly finalContent: string;
}
/**
 * Operation representing the renaming/moving of a file
 */
export interface IFileRenameOperation extends IFileOperation {
    readonly type: FileOperationType.Rename;
    readonly oldUri: URI;
    readonly newUri: URI;
}
/**
 * Operation representing text edits applied to a file
 */
export interface ITextEditOperation extends IFileOperation {
    readonly type: FileOperationType.TextEdit;
    readonly edits: readonly TextEdit[];
    /**
     * For cell URIs, the cell index that was edited. Needed because the original
     * edit URI only contains the `handle` which is not portable between notebooks.
     */
    readonly cellIndex?: number;
}
/**
 * Operation representing notebook cell edits applied to a notebook
 */
export interface INotebookEditOperation extends IFileOperation {
    readonly type: FileOperationType.NotebookEdit;
    readonly cellEdits: readonly ICellEditOperation[];
}
/**
 * Union type of all possible file operations
 */
export type FileOperation = IFileCreateOperation | IFileDeleteOperation | IFileRenameOperation | ITextEditOperation | INotebookEditOperation;
/**
 * File baseline represents the initial state of a file when first edited in a request
 */
export interface IFileBaseline {
    readonly uri: URI;
    readonly requestId: string;
    readonly content: string;
    readonly epoch: number;
    readonly telemetryInfo: IModifiedEntryTelemetryInfo;
    readonly notebookViewType?: string;
}
export interface IReconstructedFileExistsState {
    readonly exists: true;
    readonly content: string;
    readonly uri: URI;
    readonly telemetryInfo: IModifiedEntryTelemetryInfo;
    readonly notebookViewType?: string;
}
export interface IReconstructedFileNotExistsState {
    readonly exists: false;
    readonly uri: URI;
}
/**
 * The reconstructed state of a file at a specific checkpoint
 */
export type IReconstructedFileState = IReconstructedFileNotExistsState | IReconstructedFileExistsState;
/**
 * Checkpoint represents a stable state that can be navigated to
 */
export interface ICheckpoint {
    readonly checkpointId: string;
    readonly requestId: string | undefined;
    readonly undoStopId: string | undefined;
    readonly epoch: number;
    readonly label: string;
    readonly description?: string;
}
/**
 * State that can be persisted and restored for the checkpoint timeline
 */
export interface IChatEditingTimelineState {
    readonly checkpoints: readonly ICheckpoint[];
    readonly fileBaselines: [
        string,
        IFileBaseline
    ][];
    readonly operations: readonly FileOperation[];
    readonly currentEpoch: number;
    readonly epochCounter: number;
}
export declare function getKeyForChatSessionResource(chatSessionResource: URI): string;