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

/**
 * This is the place for API experiments and proposals.
 * These API are NOT stable and subject to change. They are only available in the Insiders
 * distribution and CANNOT be used in published extensions.
 *
 * To test these API in local environment:
 * - Use Insiders release of VS Code.
 * - Add `"enableProposedApi": true` to your package.json.
 * - Copy this file to your project.
 */

declare module 'vscode' {

	//#region Joh - call hierarchy

	export class CallHierarchyItem {
		/**
		 * The name of this item.
		 */
		name: string;

		/**
		 * The kind of this item.
		 */
		kind: SymbolKind;

		/**
		 * Tags for this item.
		 */
		tags?: ReadonlyArray<SymbolTag>;

		/**
		 * More detail for this item, e.g. the signature of a function.
		 */
		detail?: string;

		/**
		 * The resource identifier of this item.
		 */
		uri: Uri;

		/**
		 * The range enclosing this symbol not including leading/trailing whitespace but everything else, e.g. comments and code.
		 */
		range: Range;

		/**
		 * The range that should be selected and reveal when this symbol is being picked, e.g. the name of a function.
		 * Must be contained by the [`range`](#CallHierarchyItem.range).
		 */
		selectionRange: Range;

		constructor(kind: SymbolKind, name: string, detail: string, uri: Uri, range: Range, selectionRange: Range);
	}

	export class CallHierarchyIncomingCall {
		source: CallHierarchyItem;
		sourceRanges: Range[];
		constructor(item: CallHierarchyItem, sourceRanges: Range[]);
	}

	export class CallHierarchyOutgoingCall {
		sourceRanges: Range[];
		target: CallHierarchyItem;
		constructor(item: CallHierarchyItem, sourceRanges: Range[]);
	}

	export interface CallHierarchyItemProvider {

		/**
		 * Provide a list of callers for the provided item, e.g. all function calling a function.
		 */
		provideCallHierarchyIncomingCalls(document: TextDocument, position: Position, token: CancellationToken): ProviderResult<CallHierarchyIncomingCall[]>;

		/**
		 * Provide a list of calls for the provided item, e.g. all functions call from a function.
		 */
		provideCallHierarchyOutgoingCalls(document: TextDocument, position: Position, token: CancellationToken): ProviderResult<CallHierarchyOutgoingCall[]>;

		//  todo@joh this could return as 'prepareCallHierarchy' (similar to the RenameProvider#prepareRename)
		//
		// /**
		//  *
		//  * Given a document and position compute a call hierarchy item. This is justed as
		//  * anchor for call hierarchy and then `resolveCallHierarchyItem` is being called.
		//  */
		// resolveCallHierarchyItem(document: TextDocument, position: Position, token: CancellationToken): ProviderResult<CallHierarchyItem>;
	}

	export namespace languages {
		export function registerCallHierarchyProvider(selector: DocumentSelector, provider: CallHierarchyItemProvider): Disposable;
	}

	//#endregion


	//#region Alex - resolvers

	export interface RemoteAuthorityResolverContext {
		resolveAttempt: number;
	}

	export class ResolvedAuthority {
		readonly host: string;
		readonly port: number;

		constructor(host: string, port: number);
	}

	export interface ResolvedOptions {
		extensionHostEnv?: { [key: string]: string | null };
	}

	export type ResolverResult = ResolvedAuthority & ResolvedOptions;

	export class RemoteAuthorityResolverError extends Error {
		static NotAvailable(message?: string, handled?: boolean): RemoteAuthorityResolverError;
		static TemporarilyNotAvailable(message?: string): RemoteAuthorityResolverError;

		constructor(message?: string);
	}

	export interface RemoteAuthorityResolver {
		resolve(authority: string, context: RemoteAuthorityResolverContext): ResolverResult | Thenable<ResolverResult>;
	}

	export interface ResourceLabelFormatter {
		scheme: string;
		authority?: string;
		formatting: ResourceLabelFormatting;
	}

	export interface ResourceLabelFormatting {
		label: string; // myLabel:/${path}
		separator: '/' | '\\' | '';
		tildify?: boolean;
		normalizeDriveLetter?: boolean;
		workspaceSuffix?: string;
		authorityPrefix?: string;
	}

	export namespace workspace {
		export function registerRemoteAuthorityResolver(authorityPrefix: string, resolver: RemoteAuthorityResolver): Disposable;
		export function registerResourceLabelFormatter(formatter: ResourceLabelFormatter): Disposable;
	}

	//#endregion


	// #region Joh - code insets

	export interface WebviewEditorInset {
		readonly editor: TextEditor;
		readonly line: number;
		readonly height: number;
		readonly webview: Webview;
		readonly onDidDispose: Event<void>;
		dispose(): void;
	}

	export namespace window {
		export function createWebviewTextEditorInset(editor: TextEditor, line: number, height: number, options?: WebviewOptions): WebviewEditorInset;
	}

	//#endregion

	//#region Joh - read/write in chunks

	export interface FileSystemProvider {
		open?(resource: Uri, options: { create: boolean }): number | Thenable<number>;
		close?(fd: number): void | Thenable<void>;
		read?(fd: number, pos: number, data: Uint8Array, offset: number, length: number): number | Thenable<number>;
		write?(fd: number, pos: number, data: Uint8Array, offset: number, length: number): number | Thenable<number>;
	}

	//#endregion

	//#region Rob: search provider

	/**
	 * The parameters of a query for text search.
	 */
	export interface TextSearchQuery {
		/**
		 * The text pattern to search for.
		 */
		pattern: string;

		/**
		 * Whether or not `pattern` should match multiple lines of text.
		 */
		isMultiline?: boolean;

		/**
		 * Whether or not `pattern` should be interpreted as a regular expression.
		 */
		isRegExp?: boolean;

		/**
		 * Whether or not the search should be case-sensitive.
		 */
		isCaseSensitive?: boolean;

		/**
		 * Whether or not to search for whole word matches only.
		 */
		isWordMatch?: boolean;
	}

	/**
	 * A file glob pattern to match file paths against.
	 * TODO@roblou - merge this with the GlobPattern docs/definition in vscode.d.ts.
	 * @see [GlobPattern](#GlobPattern)
	 */
	export type GlobString = string;

	/**
	 * Options common to file and text search
	 */
	export interface SearchOptions {
		/**
		 * The root folder to search within.
		 */
		folder: Uri;

		/**
		 * Files that match an `includes` glob pattern should be included in the search.
		 */
		includes: GlobString[];

		/**
		 * Files that match an `excludes` glob pattern should be excluded from the search.
		 */
		excludes: GlobString[];

		/**
		 * Whether external files that exclude files, like .gitignore, should be respected.
		 * See the vscode setting `"search.useIgnoreFiles"`.
		 */
		useIgnoreFiles: boolean;

		/**
		 * Whether symlinks should be followed while searching.
		 * See the vscode setting `"search.followSymlinks"`.
		 */
		followSymlinks: boolean;

		/**
		 * Whether global files that exclude files, like .gitignore, should be respected.
		 * See the vscode setting `"search.useGlobalIgnoreFiles"`.
		 */
		useGlobalIgnoreFiles: boolean;
	}

	/**
	 * Options to specify the size of the result text preview.
	 * These options don't affect the size of the match itself, just the amount of preview text.
	 */
	export interface TextSearchPreviewOptions {
		/**
		 * The maximum number of lines in the preview.
		 * Only search providers that support multiline search will ever return more than one line in the match.
		 */
		matchLines: number;

		/**
		 * The maximum number of characters included per line.
		 */
		charsPerLine: number;
	}

	/**
	 * Options that apply to text search.
	 */
	export interface TextSearchOptions extends SearchOptions {
		/**
		 * The maximum number of results to be returned.
		 */
		maxResults: number;

		/**
		 * Options to specify the size of the result text preview.
		 */
		previewOptions?: TextSearchPreviewOptions;

		/**
		 * Exclude files larger than `maxFileSize` in bytes.
		 */
		maxFileSize?: number;

		/**
		 * Interpret files using this encoding.
		 * See the vscode setting `"files.encoding"`
		 */
		encoding?: string;

		/**
		 * Number of lines of context to include before each match.
		 */
		beforeContext?: number;

		/**
		 * Number of lines of context to include after each match.
		 */
		afterContext?: number;
	}

	/**
	 * Information collected when text search is complete.
	 */
	export interface TextSearchComplete {
		/**
		 * Whether the search hit the limit on the maximum number of search results.
		 * `maxResults` on [`TextSearchOptions`](#TextSearchOptions) specifies the max number of results.
		 * - If exactly that number of matches exist, this should be false.
		 * - If `maxResults` matches are returned and more exist, this should be true.
		 * - If search hits an internal limit which is less than `maxResults`, this should be true.
		 */
		limitHit?: boolean;
	}

	/**
	 * The parameters of a query for file search.
	 */
	export interface FileSearchQuery {
		/**
		 * The search pattern to match against file paths.
		 */
		pattern: string;
	}

	/**
	 * Options that apply to file search.
	 */
	export interface FileSearchOptions extends SearchOptions {
		/**
		 * The maximum number of results to be returned.
		 */
		maxResults?: number;

		/**
		 * A CancellationToken that represents the session for this search query. If the provider chooses to, this object can be used as the key for a cache,
		 * and searches with the same session object can search the same cache. When the token is cancelled, the session is complete and the cache can be cleared.
		 */
		session?: CancellationToken;
	}

	/**
	 * A preview of the text result.
	 */
	export interface TextSearchMatchPreview {
		/**
		 * The matching lines of text, or a portion of the matching line that contains the match.
		 */
		text: string;

		/**
		 * The Range within `text` corresponding to the text of the match.
		 * The number of matches must match the TextSearchMatch's range property.
		 */
		matches: Range | Range[];
	}

	/**
	 * A match from a text search
	 */
	export interface TextSearchMatch {
		/**
		 * The uri for the matching document.
		 */
		uri: Uri;

		/**
		 * The range of the match within the document, or multiple ranges for multiple matches.
		 */
		ranges: Range | Range[];

		/**
		 * A preview of the text match.
		 */
		preview: TextSearchMatchPreview;
	}

	/**
	 * A line of context surrounding a TextSearchMatch.
	 */
	export interface TextSearchContext {
		/**
		 * The uri for the matching document.
		 */
		uri: Uri;

		/**
		 * One line of text.
		 * previewOptions.charsPerLine applies to this
		 */
		text: string;

		/**
		 * The line number of this line of context.
		 */
		lineNumber: number;
	}

	export type TextSearchResult = TextSearchMatch | TextSearchContext;

	/**
	 * A FileSearchProvider provides search results for files in the given folder that match a query string. It can be invoked by quickopen or other extensions.
	 *
	 * A FileSearchProvider is the more powerful of two ways to implement file search in VS Code. Use a FileSearchProvider if you wish to search within a folder for
	 * all files that match the user's query.
	 *
	 * The FileSearchProvider will be invoked on every keypress in quickopen. When `workspace.findFiles` is called, it will be invoked with an empty query string,
	 * and in that case, every file in the folder should be returned.
	 */
	export interface FileSearchProvider {
		/**
		 * Provide the set of files that match a certain file path pattern.
		 * @param query The parameters for this query.
		 * @param options A set of options to consider while searching files.
		 * @param token A cancellation token.
		 */
		provideFileSearchResults(query: FileSearchQuery, options: FileSearchOptions, token: CancellationToken): ProviderResult<Uri[]>;
	}

	/**
	 * A TextSearchProvider provides search results for text results inside files in the workspace.
	 */
	export interface TextSearchProvider {
		/**
		 * Provide results that match the given text pattern.
		 * @param query The parameters for this query.
		 * @param options A set of options to consider while searching.
		 * @param progress A progress callback that must be invoked for all results.
		 * @param token A cancellation token.
		 */
		provideTextSearchResults(query: TextSearchQuery, options: TextSearchOptions, progress: Progress<TextSearchResult>, token: CancellationToken): ProviderResult<TextSearchComplete>;
	}

	/**
	 * Options that can be set on a findTextInFiles search.
	 */
	export interface FindTextInFilesOptions {
		/**
		 * A [glob pattern](#GlobPattern) that defines the files to search for. The glob pattern
		 * will be matched against the file paths of files relative to their workspace. Use a [relative pattern](#RelativePattern)
		 * to restrict the search results to a [workspace folder](#WorkspaceFolder).
		 */
		include?: GlobPattern;

		/**
		 * A [glob pattern](#GlobPattern) that defines files and folders to exclude. The glob pattern
		 * will be matched against the file paths of resulting matches relative to their workspace. When `undefined` only default excludes will
		 * apply, when `null` no excludes will apply.
		 */
		exclude?: GlobPattern | null;

		/**
		 * The maximum number of results to search for
		 */
		maxResults?: number;

		/**
		 * Whether external files that exclude files, like .gitignore, should be respected.
		 * See the vscode setting `"search.useIgnoreFiles"`.
		 */
		useIgnoreFiles?: boolean;

		/**
		 * Whether global files that exclude files, like .gitignore, should be respected.
		 * See the vscode setting `"search.useGlobalIgnoreFiles"`.
		 */
		useGlobalIgnoreFiles?: boolean;

		/**
		 * Whether symlinks should be followed while searching.
		 * See the vscode setting `"search.followSymlinks"`.
		 */
		followSymlinks?: boolean;

		/**
		 * Interpret files using this encoding.
		 * See the vscode setting `"files.encoding"`
		 */
		encoding?: string;

		/**
		 * Options to specify the size of the result text preview.
		 */
		previewOptions?: TextSearchPreviewOptions;

		/**
		 * Number of lines of context to include before each match.
		 */
		beforeContext?: number;

		/**
		 * Number of lines of context to include after each match.
		 */
		afterContext?: number;
	}

	export namespace workspace {
		/**
		 * Register a search provider.
		 *
		 * Only one provider can be registered per scheme.
		 *
		 * @param scheme The provider will be invoked for workspace folders that have this file scheme.
		 * @param provider The provider.
		 * @return A [disposable](#Disposable) that unregisters this provider when being disposed.
		 */
		export function registerFileSearchProvider(scheme: string, provider: FileSearchProvider): Disposable;

		/**
		 * Register a text search provider.
		 *
		 * Only one provider can be registered per scheme.
		 *
		 * @param scheme The provider will be invoked for workspace folders that have this file scheme.
		 * @param provider The provider.
		 * @return A [disposable](#Disposable) that unregisters this provider when being disposed.
		 */
		export function registerTextSearchProvider(scheme: string, provider: TextSearchProvider): Disposable;

		/**
		 * Search text in files across all [workspace folders](#workspace.workspaceFolders) in the workspace.
		 * @param query The query parameters for the search - the search string, whether it's case-sensitive, or a regex, or matches whole words.
		 * @param callback A callback, called for each result
		 * @param token A token that can be used to signal cancellation to the underlying search engine.
		 * @return A thenable that resolves when the search is complete.
		 */
		export function findTextInFiles(query: TextSearchQuery, callback: (result: TextSearchResult) => void, token?: CancellationToken): Thenable<TextSearchComplete>;

		/**
		 * Search text in files across all [workspace folders](#workspace.workspaceFolders) in the workspace.
		 * @param query The query parameters for the search - the search string, whether it's case-sensitive, or a regex, or matches whole words.
		 * @param options An optional set of query options. Include and exclude patterns, maxResults, etc.
		 * @param callback A callback, called for each result
		 * @param token A token that can be used to signal cancellation to the underlying search engine.
		 * @return A thenable that resolves when the search is complete.
		 */
		export function findTextInFiles(query: TextSearchQuery, options: FindTextInFilesOptions, callback: (result: TextSearchResult) => void, token?: CancellationToken): Thenable<TextSearchComplete>;
	}

	//#endregion

	//#region Joao: diff command

	/**
	 * The contiguous set of modified lines in a diff.
	 */
	export interface LineChange {
		readonly originalStartLineNumber: number;
		readonly originalEndLineNumber: number;
		readonly modifiedStartLineNumber: number;
		readonly modifiedEndLineNumber: number;
	}

	export namespace commands {

		/**
		 * Registers a diff information command that can be invoked via a keyboard shortcut,
		 * a menu item, an action, or directly.
		 *
		 * Diff information commands are different from ordinary [commands](#commands.registerCommand) as
		 * they only execute when there is an active diff editor when the command is called, and the diff
		 * information has been computed. Also, the command handler of an editor command has access to
		 * the diff information.
		 *
		 * @param command A unique identifier for the command.
		 * @param callback A command handler function with access to the [diff information](#LineChange).
		 * @param thisArg The `this` context used when invoking the handler function.
		 * @return Disposable which unregisters this command on disposal.
		 */
		export function registerDiffInformationCommand(command: string, callback: (diff: LineChange[], ...args: any[]) => any, thisArg?: any): Disposable;
	}

	//#endregion

	//#region Joh: decorations

	export class Decoration {
		letter?: string;
		title?: string;
		color?: ThemeColor;
		priority?: number;
		bubble?: boolean;
	}

	export interface DecorationProvider {
		onDidChangeDecorations: Event<undefined | Uri | Uri[]>;
		provideDecoration(uri: Uri, token: CancellationToken): ProviderResult<Decoration>;
	}

	export namespace window {
		export function registerDecorationProvider(provider: DecorationProvider): Disposable;
	}

	//#endregion

	//#region André: debug

	// deprecated

	export interface DebugConfigurationProvider {
		/**
		 * Deprecated, use DebugAdapterDescriptorFactory.provideDebugAdapter instead.
		 * @deprecated Use DebugAdapterDescriptorFactory.createDebugAdapterDescriptor instead
		 */
		debugAdapterExecutable?(folder: WorkspaceFolder | undefined, token?: CancellationToken): ProviderResult<DebugAdapterExecutable>;
	}

	/**
	 * Debug console mode used by debug session, see [options](#DebugSessionOptions).
	 */
	export enum DebugConsoleMode {
		/**
		 * Debug session should have a separate debug console.
		 */
		Separate = 0,

		/**
		 * Debug session should share debug console with its parent session.
		 * This value has no effect for sessions which do not have a parent session.
		 */
		MergeWithParent = 1
	}

	/**
	 * Options for [starting a debug session](#debug.startDebugging).
	 */
	export interface DebugSessionOptions {

		/**
		 * When specified the newly created debug session is registered as a "child" session of this
		 * "parent" debug session.
		 */
		parentSession?: DebugSession;

		/**
		 * Controls whether this session should have a separate debug console or share it
		 * with the parent session. Has no effect for sessions which do not have a parent session.
		 * Defaults to Separate.
		 */
		consoleMode?: DebugConsoleMode;
	}

	export namespace debug {
		/**
		 * Start debugging by using either a named launch or named compound configuration,
		 * or by directly passing a [DebugConfiguration](#DebugConfiguration).
		 * The named configurations are looked up in '.vscode/launch.json' found in the given folder.
		 * Before debugging starts, all unsaved files are saved and the launch configurations are brought up-to-date.
		 * Folder specific variables used in the configuration (e.g. '${workspaceFolder}') are resolved against the given folder.
		 * @param folder The [workspace folder](#WorkspaceFolder) for looking up named configurations and resolving variables or `undefined` for a non-folder setup.
		 * @param nameOrConfiguration Either the name of a debug or compound configuration or a [DebugConfiguration](#DebugConfiguration) object.
		 * @param parentSessionOrOptions Debug sesison options. When passed a parent [debug session](#DebugSession), assumes options with just this parent session.
		 * @return A thenable that resolves when debugging could be successfully started.
		 */
		export function startDebugging(folder: WorkspaceFolder | undefined, nameOrConfiguration: string | DebugConfiguration, parentSessionOrOptions?: DebugSession | DebugSessionOptions): Thenable<boolean>;
	}

	//#endregion

	//#region Rob, Matt: logging

	/**
	 * The severity level of a log message
	 */
	export enum LogLevel {
		Trace = 1,
		Debug = 2,
		Info = 3,
		Warning = 4,
		Error = 5,
		Critical = 6,
		Off = 7
	}

	export namespace env {
		/**
		 * Current logging level.
		 */
		export const logLevel: LogLevel;

		/**
		 * An [event](#Event) that fires when the log level has changed.
		 */
		export const onDidChangeLogLevel: Event<LogLevel>;
	}

	//#endregion

	//#region Joao: SCM validation

	/**
	 * Represents the validation type of the Source Control input.
	 */
	export enum SourceControlInputBoxValidationType {

		/**
		 * Something not allowed by the rules of a language or other means.
		 */
		Error = 0,

		/**
		 * Something suspicious but allowed.
		 */
		Warning = 1,

		/**
		 * Something to inform about but not a problem.
		 */
		Information = 2
	}

	export interface SourceControlInputBoxValidation {

		/**
		 * The validation message to display.
		 */
		readonly message: string;

		/**
		 * The validation type.
		 */
		readonly type: SourceControlInputBoxValidationType;
	}

	/**
	 * Represents the input box in the Source Control viewlet.
	 */
	export interface SourceControlInputBox {

		/**
		 * A validation function for the input box. It's possible to change
		 * the validation provider simply by setting this property to a different function.
		 */
		validateInput?(value: string, cursorPosition: number): ProviderResult<SourceControlInputBoxValidation | undefined | null>;
	}

	//#endregion

	//#region Joao: SCM selected provider

	export interface SourceControl {

		/**
		 * Whether the source control is selected.
		 */
		readonly selected: boolean;

		/**
		 * An event signaling when the selection state changes.
		 */
		readonly onDidChangeSelection: Event<boolean>;
	}

	//#endregion

	//#region Joao: SCM Input Box

	/**
	 * Represents the input box in the Source Control viewlet.
	 */
	export interface SourceControlInputBox {

		/**
			* Controls whether the input box is visible (default is `true`).
			*/
		visible: boolean;
	}

	//#endregion


	//#region Terminal

	/**
	 * An [event](#Event) which fires when a [Terminal](#Terminal)'s dimensions change.
	 */
	export interface TerminalDimensionsChangeEvent {
		/**
		 * The [terminal](#Terminal) for which the dimensions have changed.
		 */
		readonly terminal: Terminal;
		/**
		 * The new value for the [terminal's dimensions](#Terminal.dimensions).
		 */
		readonly dimensions: TerminalDimensions;
	}

	export interface TerminalDataWriteEvent {
		/**
		 * The [terminal](#Terminal) for which the data was written.
		 */
		readonly terminal: Terminal;
		/**
		 * The data being written.
		 */
		readonly data: string;
	}

	namespace window {
		/**
		 * An event which fires when the [dimensions](#Terminal.dimensions) of the terminal change.
		 */
		export const onDidChangeTerminalDimensions: Event<TerminalDimensionsChangeEvent>;

		/**
		 * An event which fires when the terminal's pty slave pseudo-device is written to. In other
		 * words, this provides access to the raw data stream from the process running within the
		 * terminal, including VT sequences.
		 */
		export const onDidWriteTerminalData: Event<TerminalDataWriteEvent>;
	}

	export interface Terminal {
		/**
		 * The current dimensions of the terminal. This will be `undefined` immediately after the
		 * terminal is created as the dimensions are not known until shortly after the terminal is
		 * created.
		 */
		readonly dimensions: TerminalDimensions | undefined;
	}

	//#endregion

	//#region Joh -> exclusive document filters

	export interface DocumentFilter {
		exclusive?: boolean;
	}

	//#endregion

	//#region mjbvz,joh: https://github.com/Microsoft/vscode/issues/43768
	export interface FileRenameEvent {
		readonly oldUri: Uri;
		readonly newUri: Uri;
	}

	export interface FileWillRenameEvent {
		readonly oldUri: Uri;
		readonly newUri: Uri;
		waitUntil(thenable: Thenable<WorkspaceEdit>): void;
	}

	export namespace workspace {
		export const onWillRenameFile: Event<FileWillRenameEvent>;
		export const onDidRenameFile: Event<FileRenameEvent>;
	}
	//#endregion

	//#region Alex - OnEnter enhancement
	export interface OnEnterRule {
		/**
		 * This rule will only execute if the text above the this line matches this regular expression.
		 */
		oneLineAboveText?: RegExp;
	}
	//#endregion

	//#region Tree View

	export interface TreeView<T> {
		/**
		 * The name of the tree view. It is set from the extension package.json and can be changed later.
		 */
		title?: string;
	}

	/**
	 * Label describing the [Tree item](#TreeItem)
	 */
	export interface TreeItemLabel {

		/**
		 * A human-readable string describing the [Tree item](#TreeItem).
		 */
		label: string;

		/**
		 * Ranges in the label to highlight. A range is defined as a tuple of two number where the
		 * first is the inclusive start index and the second the exclusive end index
		 */
		highlights?: [number, number][];

	}

	export class TreeItem2 extends TreeItem {
		/**
		 * Label describing this item. When `falsy`, it is derived from [resourceUri](#TreeItem.resourceUri).
		 */
		label?: string | TreeItemLabel | /* for compilation */ any;

		/**
		 * @param label Label describing this item
		 * @param collapsibleState [TreeItemCollapsibleState](#TreeItemCollapsibleState) of the tree item. Default is [TreeItemCollapsibleState.None](#TreeItemCollapsibleState.None)
		 */
		constructor(label: TreeItemLabel, collapsibleState?: TreeItemCollapsibleState);
	}
	//#endregion

	//#region CustomExecution
	/**
	 * Class used to execute an extension callback as a task.
	 */
	export class CustomExecution2 {
		/**
		 * Constructs a CustomExecution task object. The callback will be executed the task is run, at which point the
		 * extension should return the Pseudoterminal it will "run in". The task should wait to do further execution until
		 * [Pseudoterminal.open](#Pseudoterminal.open) is called. Task cancellation should be handled using
		 * [Pseudoterminal.close](#Pseudoterminal.close). When the task is complete fire
		 * [Pseudoterminal.onDidClose](#Pseudoterminal.onDidClose).
		 * @param process The [Pseudoterminal](#Pseudoterminal) to be used by the task to display output.
		 * @param callback The callback that will be called when the task is started by a user.
		 */
		constructor(callback: () => Thenable<Pseudoterminal>);
	}

	/**
	 * A task to execute
	 */
	export class Task2 extends Task {
		/**
		 * Creates a new task.
		 *
		 * @param definition The task definition as defined in the taskDefinitions extension point.
		 * @param scope Specifies the task's scope. It is either a global or a workspace task or a task for a specific workspace folder.
		 * @param name The task's name. Is presented in the user interface.
		 * @param source The task's source (e.g. 'gulp', 'npm', ...). Is presented in the user interface.
		 * @param execution The process or shell execution.
		 * @param problemMatchers the names of problem matchers to use, like '$tsc'
		 *  or '$eslint'. Problem matchers can be contributed by an extension using
		 *  the `problemMatchers` extension point.
		 */
		constructor(taskDefinition: TaskDefinition, scope: WorkspaceFolder | TaskScope.Global | TaskScope.Workspace, name: string, source: string, execution?: ProcessExecution | ShellExecution | CustomExecution2, problemMatchers?: string | string[]);

		/**
		 * The task's execution engine
		 */
		execution2?: ProcessExecution | ShellExecution | CustomExecution2;
	}
	//#endregion

	//#region Tasks
	export interface TaskPresentationOptions {
		/**
		 * Controls whether the task is executed in a specific terminal group using split panes.
		 */
		group?: string;
	}
	//#endregion

	// #region Ben - status bar item with ID and Name

	export namespace window {

		/**
		 * Options to configure the status bar item.
		 */
		export interface StatusBarItemOptions {

			/**
			 * A unique identifier of the status bar item. The identifier
			 * is for example used to allow a user to show or hide the
			 * status bar item in the UI.
			 */
			id: string;

			/**
			 * A human readable name of the status bar item. The name is
			 * for example used as a label in the UI to show or hide the
			 * status bar item.
			 */
			name: string;

			/**
			 * The alignment of the status bar item.
			 */
			alignment?: StatusBarAlignment;

			/**
			 * The priority of the status bar item. Higher value means the item should
			 * be shown more to the left.
			 */
			priority?: number;
		}

		/**
		 * Creates a status bar [item](#StatusBarItem).
		 *
		 * @param options The options of the item. If not provided, some default values
		 * will be assumed. For example, the `StatusBarItemOptions.id` will be the id
		 * of the extension and the `StatusBarItemOptions.name` will be the extension name.
		 * @return A new status bar item.
		 */
		export function createStatusBarItem(options?: StatusBarItemOptions): StatusBarItem;
	}

	//#endregion

	// #region Ben - extension auth flow (desktop+web)

	export interface AppUriOptions {
		payload?: {
			path?: string;
			query?: string;
			fragment?: string;
		};
	}

	export namespace env {

		/**
		 * Creates a Uri that - if opened in a browser - will result in a
		 * registered [UriHandler](#UriHandler) to fire. The handler's
		 * Uri will be configured with the path, query and fragment of
		 * [AppUriOptions](#AppUriOptions) if provided, otherwise it will be empty.
		 *
		 * Extensions should not make any assumptions about the resulting
		 * Uri and should not alter it in anyway. Rather, extensions can e.g.
		 * use this Uri in an authentication flow, by adding the Uri as
		 * callback query argument to the server to authenticate to.
		 *
		 * Note: If the server decides to add additional query parameters to the Uri
		 * (e.g. a token or secret), it will appear in the Uri that is passed
		 * to the [UriHandler](#UriHandler).
		 *
		 * **Example** of an authentication flow:
		 * ```typescript
		 * vscode.window.registerUriHandler({
		 *   handleUri(uri: vscode.Uri): vscode.ProviderResult<void> {
		 *     if (uri.path === '/did-authenticate') {
		 *       console.log(uri.toString());
		 *     }
		 *   }
		 * });
		 *
		 * const callableUri = await vscode.env.createAppUri({ payload: { path: '/did-authenticate' } });
		 * await vscode.env.openExternal(callableUri);
		 * ```
		 */
		export function createAppUri(options?: AppUriOptions): Thenable<Uri>;
	}

	//#endregion

	// #region Ben - UIKind

	/**
	 * Possible kinds of UI that can use extensions.
	 */
	export enum UIKind {

		/**
		 * Extensions are accessed from a desktop application.
		 */
		Desktop = 1,

		/**
		 * Extensions are accessed from a web browser.
		 */
		Web = 2
	}

	export namespace env {

		/**
		 * The UI kind property indicates from which UI extensions
		 * are accessed from. For example, extensions could be accessed
		 * from a desktop application or a web browser.
		 */
		export const uiKind: UIKind;
	}

	//#endregion

	//#region Custom editors, mjbvz

	export interface WebviewEditor extends WebviewPanel {
	}

	export interface WebviewEditorProvider {
		/**
		* Fills out a `WebviewEditor` for a given resource.
		*
		* The provider should take ownership of passed in `editor`.
		*/
		resolveWebviewEditor(
			resource: Uri,
			editor: WebviewEditor
		): Thenable<void>;
	}

	namespace window {
		export function registerWebviewEditorProvider(
			viewType: string,
			provider: WebviewEditorProvider,
		): Disposable;
	}

	//#endregion

	// #region resolveExternalUri — mjbvz

	namespace env {
		/**
		 * Resolves an *external* uri, such as a `http:` or `https:` link, from where the extension is running to a
		 * uri to the same resource on the client machine.
		 *
		 * This is a no-op if the extension is running locally. Currently only supports `https:` and `http:`.
		 *
		 * If the extension is running remotely, this function automatically establishes port forwarding from
		 * the local machine to `target` on the remote and returns a local uri that can be used to for this connection.
		 *
		 * Extensions should not store the result of `resolveExternalUri` as the resolved uri may become invalid due to
		 * a system or user action — for example, in remote cases, a user may close a port that was forwarded by
		 * `resolveExternalUri`.
		 *
		 * Note: uris passed through `openExternal` are automatically resolved and you should not call `resolveExternalUri`
		 * on them.
		 *
		 * @return A uri that can be used on the client machine.
		 */
		export function asExternalUri(target: Uri): Thenable<Uri>;
	}

	//#endregion
}
