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

import 'vs/css!./media/review';
import * as nls from 'vs/nls';
import * as arrays from 'vs/base/common/arrays';
import * as modes from 'vs/editor/common/modes';
import { IEditorContribution } from 'vs/editor/common/editorCommon';
import { ICodeEditor, IEditorMouseEvent, MouseTargetType, IViewZone } from 'vs/editor/browser/editorBrowser';
import { $ } from 'vs/base/browser/builder';
import { IDisposable, dispose } from 'vs/base/common/lifecycle';
import { registerEditorContribution } from 'vs/editor/browser/editorExtensions';
import { ModelDecorationOptions } from 'vs/editor/common/model/textModel';
import { TrackedRangeStickiness, IModelDeltaDecoration } from 'vs/editor/common/model';
import { renderMarkdown } from 'vs/base/browser/htmlContentRenderer';
import { RawContextKey, IContextKeyService, IContextKey } from 'vs/platform/contextkey/common/contextkey';
import { KeybindingsRegistry } from 'vs/platform/keybinding/common/keybindingsRegistry';
import { KeyCode, KeyMod } from 'vs/base/common/keyCodes';
import { ServicesAccessor } from 'vs/platform/instantiation/common/instantiation';
import { ICodeEditorService } from 'vs/editor/browser/services/codeEditorService';
import { EmbeddedCodeEditorWidget } from 'vs/editor/browser/widget/embeddedCodeEditorWidget';
import { ActionBar } from 'vs/base/browser/ui/actionbar/actionbar';
import { Action } from 'vs/base/common/actions';
import { registerThemingParticipant, ITheme, IThemeService } from 'vs/platform/theme/common/themeService';
import { peekViewEditorBackground, peekViewBorder, } from 'vs/editor/contrib/referenceSearch/referencesWidget';
import { Color } from 'vs/base/common/color';
import { IMarginData } from 'vs/editor/browser/controller/mouseTarget';
import { ICommandService } from 'vs/platform/commands/common/commands';
import { Emitter, Event } from 'vs/base/common/event';
import { editorBackground, editorForeground } from 'vs/platform/theme/common/colorRegistry';
import { ZoneWidget, IOptions } from 'vs/editor/contrib/zoneWidget/zoneWidget';
import { ReviewModel, ReviewStyle } from 'vs/workbench/parts/comments/common/reviewModel';
import { ICommentService } from '../../../services/comments/electron-browser/commentService';

export const ctxReviewPanelVisible = new RawContextKey<boolean>('reviewPanelVisible', false);
export const ID = 'editor.contrib.review';

declare var ResizeObserver: any;

const REVIEW_DECORATION = ModelDecorationOptions.register({
	stickiness: TrackedRangeStickiness.NeverGrowsWhenTypingAtEdges,
	glyphMarginClassName: 'review'
});

const NEW_COMMENT_DECORATION = ModelDecorationOptions.register({
	stickiness: TrackedRangeStickiness.NeverGrowsWhenTypingAtEdges,
	glyphMarginClassName: 'new-comment-hint',
});

export class ReviewViewZone implements IViewZone {
	public readonly afterLineNumber: number;
	public readonly domNode: HTMLElement;
	private callback: (top: number) => void;

	constructor(afterLineNumber: number, onDomNodeTop: (top: number) => void) {
		this.afterLineNumber = afterLineNumber;
		this.callback = onDomNodeTop;

		this.domNode = $('.review-viewzone').getHTMLElement();
	}

	onDomNodeTop(top: number): void {
		this.callback(top);
	}
}

export class CommentNode {
	private _domNode: HTMLElement;
	public get domNode(): HTMLElement {
		return this._domNode;
	}
	constructor(public readonly comment: modes.Comment, ) {
		this._domNode = $('div.review-comment').getHTMLElement();
		let avatar = $('span.float-left').appendTo(this._domNode).getHTMLElement();
		let img = <HTMLImageElement>$('img.avatar').appendTo(avatar).getHTMLElement();
		img.src = comment.gravatar;
		let commentDetailsContainer = $('.review-comment-contents').appendTo(this._domNode).getHTMLElement();

		let header = $('h4').appendTo(commentDetailsContainer).getHTMLElement();
		let author = $('strong.author').appendTo(header).getHTMLElement();
		author.innerText = comment.userName;
		let body = $('comment-body').appendTo(commentDetailsContainer).getHTMLElement();
		let md = comment.body;
		body.appendChild(renderMarkdown(md));
	}
}

export class ReviewZoneWidget extends ZoneWidget {
	private _headElement: HTMLElement;
	protected _primaryHeading: HTMLElement;
	protected _secondaryHeading: HTMLElement;
	protected _metaHeading: HTMLElement;
	protected _actionbarWidget: ActionBar;
	private _bodyElement: HTMLElement;
	private _commentsElement: HTMLElement;
	private _commentElements: CommentNode[];
	private _resizeObserver: any;
	private _onDidClose = new Emitter<ReviewZoneWidget>();
	private _isCollapsed = true;
	private _toggleAction: Action;
	private _commentThread: modes.CommentThread;
	public get commentThread(): modes.CommentThread {
		return this._commentThread;
	}

	constructor(
		editor: ICodeEditor,
		commentThread: modes.CommentThread,
		options: IOptions = {},
		private readonly themeService: IThemeService,
		private readonly commandService: ICommandService
	) {
		super(editor, options);
		this._resizeObserver = null;
		this._commentThread = commentThread;
		this.create();
		this.themeService.onThemeChange(this._applyTheme, this);
	}

	public get onDidClose(): Event<ReviewZoneWidget> {
		return this._onDidClose.event;
	}

	public reveal() {
		if (this._isCollapsed) {
			this._toggleAction.run();
		}
	}

	protected _fillContainer(container: HTMLElement): void {
		this.setCssClass('review-widget');
		this._headElement = <HTMLDivElement>$('.head').getHTMLElement();
		container.appendChild(this._headElement);
		this._fillHead(this._headElement);

		this._bodyElement = <HTMLDivElement>$('.body').getHTMLElement();
		container.appendChild(this._bodyElement);
	}

	protected _fillHead(container: HTMLElement): void {
		var titleElement = $('.review-title').
			appendTo(this._headElement).
			getHTMLElement();

		this._primaryHeading = $('span.filename').appendTo(titleElement).getHTMLElement();
		this._secondaryHeading = $('span.dirname').appendTo(titleElement).getHTMLElement();
		this._metaHeading = $('span.meta').appendTo(titleElement).getHTMLElement();

		let primaryHeading = 'Reviewers:';
		$(this._primaryHeading).safeInnerHtml(primaryHeading);
		this._primaryHeading.setAttribute('aria-label', primaryHeading);

		let secondaryHeading = this._commentThread.comments.filter(arrays.uniqueFilter(comment => comment.userName)).map(comment => `@${comment.userName}`).join(', ');
		$(this._secondaryHeading).safeInnerHtml(secondaryHeading);

		const actionsContainer = $('.review-actions').appendTo(this._headElement);
		this._actionbarWidget = new ActionBar(actionsContainer.getHTMLElement(), {});
		this._disposables.push(this._actionbarWidget);

		this._toggleAction = new Action('review.expand', nls.localize('label.expand', "Expand"), 'expand-review-action octicon octicon-chevron-down', true, () => {
			if (this._isCollapsed) {
				this._bodyElement.style.display = 'block';
				this._toggleAction.class = 'expand-review-action octicon octicon-chevron-up';
				this._isCollapsed = false;
			}
			else {
				this._bodyElement.style.display = 'none';
				this._toggleAction.class = 'expand-review-action octicon octicon-chevron-down';
				this._isCollapsed = true;
			}
			return null;
		});

		this._actionbarWidget.push(this._toggleAction, { label: false, icon: true });
	}

	toggleExpand() {
		this._toggleAction.run();
	}

	update(commentThread: modes.CommentThread) {
		const oldCommentsLen = this._commentElements.length;
		const newCommentsLen = commentThread.comments.length;

		let commentElementsToDel: CommentNode[] = [];
		let commentElementsToDelIndex: number[] = [];
		for (let i = 0; i < oldCommentsLen; i++) {
			let comment = this._commentElements[i].comment;
			if (!commentThread.comments.some(c => c.commentId === comment.commentId)) {
				commentElementsToDelIndex.push(i);
				commentElementsToDel.push(this._commentElements[i]);
			}
		}

		// del removed elements
		for (let i = commentElementsToDel.length - 1; i >= 0; i--) {
			this._commentElements.splice(commentElementsToDelIndex[i]);
			this._commentsElement.removeChild(commentElementsToDel[i].domNode);
		}

		if (this._commentElements.length === 0) {
			this._commentThread = commentThread;
			commentThread.comments.forEach(comment => {
				let newElement = new CommentNode(comment);
				this._commentElements.push(newElement);
				this._commentsElement.appendChild(newElement.domNode);
			});
			return;
		}

		let lastCommentElement: HTMLElement = null;
		let newCommentNodeList: CommentNode[] = [];
		for (let i = newCommentsLen - 1; i >= 0; i--) {
			let currentComment = commentThread.comments[i];
			let oldCommentNode = this._commentElements.filter(commentNode => commentNode.comment.commentId === currentComment.commentId);
			if (oldCommentNode.length) {
				lastCommentElement = oldCommentNode[0].domNode;
				newCommentNodeList.unshift(oldCommentNode[0]);
			} else {
				let newElement = new CommentNode(currentComment);
				newCommentNodeList.unshift(newElement);
				if (lastCommentElement) {
					this._commentsElement.insertBefore(newElement.domNode, lastCommentElement);
					lastCommentElement = newElement.domNode;
				} else {
					this._commentsElement.appendChild(newElement.domNode);
					lastCommentElement = newElement.domNode;
				}
			}
		}

		this._commentThread = commentThread;
		this._commentElements = newCommentNodeList;
	}

	display(lineNumber: number) {
		this.show({ lineNumber: lineNumber, column: 1 }, 2);

		var headHeight = Math.ceil(this.editor.getConfiguration().lineHeight * 1.2);
		this._headElement.style.height = `${headHeight}px`;
		this._headElement.style.lineHeight = this._headElement.style.height;

		this._bodyElement.style.display = 'none';
		this._commentsElement = $('div.comments-container').appendTo(this._bodyElement).getHTMLElement();
		this._commentElements = [];
		for (let i = 0; i < this._commentThread.comments.length; i++) {
			let newCommentNode = new CommentNode(this._commentThread.comments[i]);
			this._commentElements.push(newCommentNode);
			this._commentsElement.appendChild(newCommentNode.domNode);
		}

		const commentForm = $('.comment-form').appendTo(this._bodyElement).getHTMLElement();
		const textArea = <HTMLTextAreaElement>$('textarea').appendTo(commentForm).getHTMLElement();
		const formActions = $('.form-actions').appendTo(commentForm).getHTMLElement();

		for (const action of this._commentThread.actions) {
			const button = $('button').appendTo(formActions).getHTMLElement();
			button.onclick = async () => {
				let newComment = await this.commandService.executeCommand(action.id, this._commentThread.threadId, this.editor.getModel().uri, lineNumber, textArea.value);
				if (newComment) {
					textArea.value = '';
					this._commentThread.comments.push(newComment);
					let newCommentNode = new CommentNode(newComment);
					this._commentElements.push(newCommentNode);
					this._commentsElement.appendChild(newCommentNode.domNode);
					let secondaryHeading = this._commentThread.comments.filter(arrays.uniqueFilter(comment => comment.userName)).map(comment => `@${comment.userName}`).join(', ');
					$(this._secondaryHeading).safeInnerHtml(secondaryHeading);
				}
			};
			button.textContent = action.title;
		}

		this._resizeObserver = new ResizeObserver(entries => {
			if (entries[0].target === this._bodyElement) {
				const lineHeight = this.editor.getConfiguration().lineHeight;
				const arrowHeight = Math.round(lineHeight / 3);
				const computedLinesNumber = Math.ceil((headHeight + entries[0].contentRect.height + arrowHeight) / lineHeight);
				this._relayout(computedLinesNumber);
			}
		});

		this._resizeObserver.observe(this._bodyElement);
	}

	private _applyTheme(theme: ITheme) {
		let borderColor = theme.getColor(peekViewBorder) || Color.transparent;
		this.style({
			arrowColor: borderColor,
			frameColor: borderColor
		});
	}

	dispose() {
		super.dispose();
		if (this._resizeObserver) {
			this._resizeObserver.disconnect();
			this._resizeObserver = null;
		}
		this._onDidClose.fire();
	}

}

export class ReviewController implements IEditorContribution {
	private globalToDispose: IDisposable[];
	private localToDispose: IDisposable[];
	private editor: ICodeEditor;
	private decorationIDs: string[];
	private newCommentHintDecoration: string[];
	private _zoneWidget: ReviewZoneWidget;
	private _zoneWidgets: ReviewZoneWidget[];
	private _reviewPanelVisible: IContextKey<boolean>;
	private _commentThreads: modes.CommentThread[];
	private _newCommentActions: modes.NewCommentAction[];
	private _reviewModel: ReviewModel;

	constructor(
		editor: ICodeEditor,
		@IContextKeyService contextKeyService: IContextKeyService,
		@IThemeService private themeService: IThemeService,
		@ICommandService private commandService: ICommandService,
		@ICommentService private commentService: ICommentService
	) {
		this.editor = editor;
		this.globalToDispose = [];
		this.localToDispose = [];
		this.decorationIDs = [];
		this.newCommentHintDecoration = [];
		this.mouseDownInfo = null;
		this._commentThreads = [];
		this._newCommentActions = [];
		this._zoneWidgets = [];
		this._zoneWidget = null;

		this._reviewPanelVisible = ctxReviewPanelVisible.bindTo(contextKeyService);
		this._reviewModel = new ReviewModel();

		this._reviewModel.onDidChangeStyle(style => {
			if (style === ReviewStyle.Gutter) {
				this._zoneWidgets.forEach(zone => {
					zone.dispose();
				});
				this._zoneWidgets = [];

				this.editor.changeDecorations(accessor => {
					this.decorationIDs = accessor.deltaDecorations(this.decorationIDs, this._commentThreads.map(thread => ({
						range: thread.range,
						options: REVIEW_DECORATION
					})));
				});
			} else {
				this.editor.changeDecorations(accessor => {
					this.decorationIDs = accessor.deltaDecorations(this.decorationIDs, []);
				});

				if (this._zoneWidget) {
					this._zoneWidget.dispose();
					this._zoneWidget = null;
				}

				this._zoneWidgets.forEach(zone => {
					zone.dispose();
				});

				this._commentThreads.forEach(thread => {
					let zoneWidget = new ReviewZoneWidget(this.editor, thread, {}, this.themeService, this.commandService);
					zoneWidget.display(thread.range.startLineNumber);
					this._zoneWidgets.push(zoneWidget);
				});
			}
		});

		this.globalToDispose.push(this.commentService.onDidSetResourceCommentThreads(e => {
			const editorURI = this.editor && this.editor.getModel() && this.editor.getModel().uri;
			if (editorURI && editorURI.toString() === e.resource.toString()) {
				this.setComments(e.commentThreads);
			}
		}));

		this.globalToDispose.push(this.commentService.onDidUpdateCommentThreads(e => {
			const editorURI = this.editor && this.editor.getModel() && this.editor.getModel().uri;
			if (!editorURI) {
				return;
			}
			let added = e.added.filter(thread => thread.resource.toString() === editorURI.toString());
			let removed = e.removed.filter(thread => thread.resource.toString() === editorURI.toString());
			let changed = e.changed.filter(thread => thread.resource.toString() === editorURI.toString());

			removed.forEach(thread => {
				let matchedZones = this._zoneWidgets.filter(zoneWidget => zoneWidget.commentThread.threadId === thread.threadId);
				if (matchedZones.length) {
					let matchedZone = matchedZones[0];
					let index = this._zoneWidgets.indexOf(matchedZone);
					this._zoneWidgets.splice(index, 1);
				}
			});

			changed.forEach(thread => {
				let matchedZones = this._zoneWidgets.filter(zoneWidget => zoneWidget.commentThread.threadId === thread.threadId);
				if (matchedZones.length) {
					let matchedZone = matchedZones[0];
					matchedZone.update(thread);
				}
			});
			added.forEach(thread => {
				let zoneWidget = new ReviewZoneWidget(this.editor, thread, {}, this.themeService, this.commandService);
				zoneWidget.display(thread.range.startLineNumber);
				this._zoneWidgets.push(zoneWidget);
				this._commentThreads.push(thread);
			});
		}));

		this.globalToDispose.push(this.editor.onDidChangeModel(() => this.onModelChanged()));
	}

	public static get(editor: ICodeEditor): ReviewController {
		return editor.getContribution<ReviewController>(ID);
	}

	public revealCommentThread(threadId: string): void {
		const commentThreadWidget = this._zoneWidgets.filter(widget => widget.commentThread.threadId === threadId);
		if (commentThreadWidget.length === 1) {
			commentThreadWidget[0].reveal();
		}
	}

	getId(): string {
		return ID;
	}
	dispose(): void {
		this.globalToDispose = dispose(this.globalToDispose);
		this.localToDispose = dispose(this.localToDispose);

		if (this._zoneWidget) {
			this._zoneWidget.dispose();
			this._zoneWidget = null;
		}
		this.editor = null;
	}

	public onModelChanged(): void {
		this.localToDispose = dispose(this.localToDispose);
		if (this._zoneWidget) {
			// todo store view state.
			this._zoneWidget.dispose();
			this._zoneWidget = null;
		}

		this._zoneWidgets.forEach(zone => {
			zone.dispose();
		});
		this._zoneWidgets = [];

		this.localToDispose.push(this.editor.onMouseDown(e => this.onEditorMouseDown(e)));
		this.localToDispose.push(this.editor.onMouseUp(e => this.onEditorMouseUp(e)));
		this.localToDispose.push(this.editor.onMouseMove(e => this.onEditorMouseMove(e)));
	}

	private mouseDownInfo: { lineNumber: number, iconClicked: boolean };

	private onEditorMouseDown(e: IEditorMouseEvent): void {
		if (!e.event.leftButton) {
			return;
		}

		let range = e.target.range;
		if (!range) {
			return;
		}

		let iconClicked = false;
		switch (e.target.type) {
			case MouseTargetType.GUTTER_GLYPH_MARGIN:
				iconClicked = true;
				break;
			default:
				return;
		}

		this.mouseDownInfo = { lineNumber: range.startLineNumber, iconClicked };
	}

	private onEditorMouseUp(e: IEditorMouseEvent): void {
		if (!this.mouseDownInfo) {
			return;
		}
		let lineNumber = this.mouseDownInfo.lineNumber;
		let iconClicked = this.mouseDownInfo.iconClicked;

		let range = e.target.range;
		if (!range || range.startLineNumber !== lineNumber) {
			return;
		}

		if (iconClicked) {
			if (e.target.type !== MouseTargetType.GUTTER_GLYPH_MARGIN) {
				return;
			}
		}

		if (this._zoneWidget && this._zoneWidget.position.lineNumber === lineNumber) {
			return;
		}

		if (this.marginFreeFromCommentHintDecorations(lineNumber)) {
			let newCommentAction = this.getNewCommentAction(lineNumber);
			if (!newCommentAction) {
				return;
			}

			// add new comment
			this._reviewPanelVisible.set(true);
			this._zoneWidget = new ReviewZoneWidget(this.editor, {
				threadId: null,
				resource: null,
				comments: [],
				range: {
					startLineNumber: lineNumber,
					startColumn: 0,
					endLineNumber: lineNumber,
					endColumn: 0
				},
				actions: newCommentAction.actions
			}, {}, this.themeService, this.commandService);
			this._zoneWidget.onDidClose(e => {
				this._zoneWidget = null;
			});
			this._zoneWidget.display(lineNumber);
			this._zoneWidget.toggleExpand();
		}
	}

	private onEditorMouseMove(e: IEditorMouseEvent): void {
		let showNewCommentHintAtLineNumber = -1;
		if (e.target.type === MouseTargetType.GUTTER_GLYPH_MARGIN
			&& this.marginFreeFromCommentHintDecorations(e.target.position.lineNumber)) {
			const data = e.target.detail as IMarginData;
			if (!data.isAfterLines) {
				showNewCommentHintAtLineNumber = e.target.position.lineNumber;
			}
		}
		this.ensureNewCommentHintDecoration(showNewCommentHintAtLineNumber);
	}

	ensureNewCommentHintDecoration(showNewCommentHintAtLineNumber: number) {
		const newDecoration: IModelDeltaDecoration[] = [];
		if (showNewCommentHintAtLineNumber !== -1) {
			newDecoration.push({
				options: NEW_COMMENT_DECORATION,
				range: {
					startLineNumber: showNewCommentHintAtLineNumber,
					startColumn: 1,
					endLineNumber: showNewCommentHintAtLineNumber,
					endColumn: 1
				}
			});
		}

		this.newCommentHintDecoration = this.editor.deltaDecorations(this.newCommentHintDecoration, newDecoration);
	}

	getNewCommentAction(line: number): modes.NewCommentAction {
		let allowNewComment = false;

		for (let i = 0; i < this._newCommentActions.length; i++) {
			let newCommentAction = this._newCommentActions[i];

			for (let j = 0; j < newCommentAction.ranges.length; j++) {
				if (newCommentAction.ranges[j].startLineNumber <= line && newCommentAction.ranges[j].endLineNumber >= line) {
					allowNewComment = true;
					break;
				}
			}

			if (allowNewComment) {
				return newCommentAction;
			}
		}

		return null;
	}

	marginFreeFromCommentHintDecorations(line: number): boolean {
		let allowNewComment = false;

		for (let i = 0; i < this._newCommentActions.length; i++) {
			let newCommentAction = this._newCommentActions[i];

			for (let j = 0; j < newCommentAction.ranges.length; j++) {
				if (newCommentAction.ranges[j].startLineNumber <= line && newCommentAction.ranges[j].endLineNumber >= line) {
					allowNewComment = true;
					break;
				}
			}

			if (allowNewComment) {
				break;
			}
		}

		if (!allowNewComment) {
			return false;
		}

		const decorations = this.editor.getLineDecorations(line);
		if (decorations) {
			for (const { options } of decorations) {
				if (options.glyphMarginClassName && options.glyphMarginClassName.indexOf('review') > -1) {
					return false;
				}
			}
		}

		return true;
	}

	getCommentThread(line: number): modes.CommentThread | undefined {
		for (let i = 0; i < this._commentThreads.length; i++) {
			if (this._commentThreads[i].range.startLineNumber === line) {
				return this._commentThreads[i];
			}
		}

		return undefined;
	}

	setNewCommentActions(newCommentActions: modes.NewCommentAction[]) {
		this._newCommentActions = newCommentActions;
	}

	setComments(commentThreads: modes.CommentThread[]): void {
		this._commentThreads = commentThreads;

		if (this._commentThreads.length === 0) {
			return;
		}

		if (this._reviewModel.style === ReviewStyle.Gutter) {
			this.editor.changeDecorations(accessor => {
				this.decorationIDs = accessor.deltaDecorations(this.decorationIDs, commentThreads.map(thread => ({
					range: thread.range,
					options: REVIEW_DECORATION
				})));
			});
		} else {
			// create viewzones
			this._zoneWidgets.forEach(zone => {
				zone.dispose();
			});

			this._commentThreads.forEach(thread => {
				let zoneWidget = new ReviewZoneWidget(this.editor, thread, {}, this.themeService, this.commandService);
				zoneWidget.display(thread.range.startLineNumber);
				this._zoneWidgets.push(zoneWidget);
			});
		}
	}


	public closeWidget(): void {
		this._reviewPanelVisible.reset();

		if (this._zoneWidget) {
			this._zoneWidget.dispose();
			this._zoneWidget = null;
		}

		this.editor.focus();
	}
}

registerEditorContribution(ReviewController);


KeybindingsRegistry.registerCommandAndKeybindingRule({
	id: 'closeReviewPanel',
	weight: KeybindingsRegistry.WEIGHT.editorContrib(),
	primary: KeyCode.Escape,
	secondary: [KeyMod.Shift | KeyCode.Escape],
	when: ctxReviewPanelVisible,
	handler: closeReviewPanel
});

export function getOuterEditor(accessor: ServicesAccessor): ICodeEditor {
	let editor = accessor.get(ICodeEditorService).getFocusedCodeEditor();
	if (editor instanceof EmbeddedCodeEditorWidget) {
		return editor.getParentEditor();
	}
	return editor;
}

function closeReviewPanel(accessor: ServicesAccessor, args: any) {
	var outerEditor = getOuterEditor(accessor);
	if (!outerEditor) {
		return;
	}

	let controller = ReviewController.get(outerEditor);

	if (!controller) {
		return;
	}

	controller.closeWidget();
}


registerThemingParticipant((theme, collector) => {
	let peekViewBackground = theme.getColor(peekViewEditorBackground);
	if (peekViewBackground) {
		collector.addRule(
			`.monaco-editor .review-widget,` +
			`.monaco-editor .review-widget {` +
			`	background-color: ${peekViewBackground};` +
			`}`);
	}

	let monacoEditorBackground = theme.getColor(editorBackground);
	if (monacoEditorBackground) {
		collector.addRule(
			`.monaco-editor .review-widget .body textarea {` +
			`	background-color: ${monacoEditorBackground}` +
			`}`
		);
	}

	let monacoEditorForeground = theme.getColor(editorForeground);
	if (monacoEditorForeground) {
		collector.addRule(
			`.monaco-editor .review-widget .body textarea {` +
			`	color: ${monacoEditorForeground}` +
			`}`
		);
	}
});