/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

declare module 'vscode' {

	// https://github.com/microsoft/vscode/issues/106744

	/**
	 * Represents a notebook editor that is attached to a {@link NotebookDocument notebook}.
	 */
	export enum NotebookEditorRevealType {
		/**
		 * The range will be revealed with as little scrolling as possible.
		 */
		Default = 0,

		/**
		 * The range will always be revealed in the center of the viewport.
		 */
		InCenter = 1,

		/**
		 * If the range is outside the viewport, it will be revealed in the center of the viewport.
		 * Otherwise, it will be revealed with as little scrolling as possible.
		 */
		InCenterIfOutsideViewport = 2,

		/**
		 * The range will always be revealed at the top of the viewport.
		 */
		AtTop = 3
	}

	/**
	 * Represents a notebook editor that is attached to a {@link NotebookDocument notebook}.
	 */
	export interface NotebookEditor {
		/**
		 * The document associated with this notebook editor.
		 */
		//todo@api rename to notebook?
		readonly document: NotebookDocument;

		/**
		 * The selections on this notebook editor.
		 *
		 * The primary selection (or focused range) is `selections[0]`. When the document has no cells, the primary selection is empty `{ start: 0, end: 0 }`;
		 */
		selections: NotebookRange[];

		/**
		 * The current visible ranges in the editor (vertically).
		 */
		readonly visibleRanges: NotebookRange[];

		/**
		 * Scroll as indicated by `revealType` in order to reveal the given range.
		 *
		 * @param range A range.
		 * @param revealType The scrolling strategy for revealing `range`.
		 */
		revealRange(range: NotebookRange, revealType?: NotebookEditorRevealType): void;

		/**
		 * The column in which this editor shows.
		 */
		readonly viewColumn?: ViewColumn;
	}

	/** @deprecated */
	export interface NotebookDocumentMetadataChangeEvent {
		/**
		 * The {@link NotebookDocument notebook document} for which the document metadata have changed.
		 */
		//todo@API rename to notebook?
		readonly document: NotebookDocument;
	}

	/** @deprecated */
	export interface NotebookCellsChangeData {
		readonly start: number;
		// todo@API end? Use NotebookCellRange instead?
		readonly deletedCount: number;
		// todo@API removedCells, deletedCells?
		readonly deletedItems: NotebookCell[];
		// todo@API addedCells, insertedCells, newCells?
		readonly items: NotebookCell[];
	}

	/** @deprecated */
	export interface NotebookCellsChangeEvent {
		/**
		 * The {@link NotebookDocument notebook document} for which the cells have changed.
		 */
		//todo@API rename to notebook?
		readonly document: NotebookDocument;
		readonly changes: ReadonlyArray<NotebookCellsChangeData>;
	}

	/** @deprecated */
	export interface NotebookCellOutputsChangeEvent {
		/**
		 * The {@link NotebookDocument notebook document} for which the cell outputs have changed.
		 */
		//todo@API remove? use cell.notebook instead?
		readonly document: NotebookDocument;
		// NotebookCellOutputsChangeEvent.cells vs NotebookCellMetadataChangeEvent.cell
		readonly cells: NotebookCell[];
	}

	/** @deprecated */
	export interface NotebookCellMetadataChangeEvent {
		/**
		 * The {@link NotebookDocument notebook document} for which the cell metadata have changed.
		 */
		//todo@API remove? use cell.notebook instead?
		readonly document: NotebookDocument;
		// NotebookCellOutputsChangeEvent.cells vs NotebookCellMetadataChangeEvent.cell
		readonly cell: NotebookCell;
	}

	export interface NotebookEditorSelectionChangeEvent {
		/**
		 * The {@link NotebookEditor notebook editor} for which the selections have changed.
		 */
		readonly notebookEditor: NotebookEditor;
		readonly selections: ReadonlyArray<NotebookRange>;
	}

	export interface NotebookEditorVisibleRangesChangeEvent {
		/**
		 * The {@link NotebookEditor notebook editor} for which the visible ranges have changed.
		 */
		readonly notebookEditor: NotebookEditor;
		readonly visibleRanges: ReadonlyArray<NotebookRange>;
	}


	export interface NotebookDocumentShowOptions {
		viewColumn?: ViewColumn;
		preserveFocus?: boolean;
		preview?: boolean;
		selections?: NotebookRange[];
	}

	export namespace notebooks {
		/** @deprecated */
		export const onDidSaveNotebookDocument: Event<NotebookDocument>;
		/** @deprecated */
		export const onDidChangeNotebookDocumentMetadata: Event<NotebookDocumentMetadataChangeEvent>;
		/** @deprecated */
		export const onDidChangeNotebookCells: Event<NotebookCellsChangeEvent>;
		// todo@API add onDidChangeNotebookCellOutputs
		/** @deprecated */
		export const onDidChangeCellOutputs: Event<NotebookCellOutputsChangeEvent>;
		// todo@API add onDidChangeNotebookCellMetadata
		/** @deprecated */
		export const onDidChangeCellMetadata: Event<NotebookCellMetadataChangeEvent>;
	}

	export namespace window {
		export const visibleNotebookEditors: NotebookEditor[];
		export const onDidChangeVisibleNotebookEditors: Event<NotebookEditor[]>;
		export const activeNotebookEditor: NotebookEditor | undefined;
		export const onDidChangeActiveNotebookEditor: Event<NotebookEditor | undefined>;
		export const onDidChangeNotebookEditorSelection: Event<NotebookEditorSelectionChangeEvent>;
		export const onDidChangeNotebookEditorVisibleRanges: Event<NotebookEditorVisibleRangesChangeEvent>;

		export function showNotebookDocument(uri: Uri, options?: NotebookDocumentShowOptions): Thenable<NotebookEditor>;
		export function showNotebookDocument(document: NotebookDocument, options?: NotebookDocumentShowOptions): Thenable<NotebookEditor>;
	}
}