// Copyright (c) Microsoft Corporation. All rights reserved.

// Licensed under the MIT License.

'use strict';

import { SemVer } from 'semver';

import { Event } from 'vscode';

import { LanguageClient, LanguageClientOptions } from 'vscode-languageclient';

import { NugetPackage } from '../common/nuget/types';

import { IDisposable, LanguageServerDownloadChannels, Resource } from '../common/types';

export const IExtensionActivationManager = Symbol('IExtensionActivationManager');

export interface IExtensionActivationManager extends IDisposable {

activate(): Promise<void>;

activateWorkspace(resource: Resource): Promise<void>;

}

export const IExtensionActivationService = Symbol('IExtensionActivationService');

/**

* Classes implementing this interface will have their `activate` methods

* invoked during the actiavtion of the extension.

* This is a great hook for extension activation code, i.e. you don't need to modify

* the `extension.ts` file to invoke some code when extension gets activated.

* @export

* @interface IExtensionActivationService

*/

export interface IExtensionActivationService {

activate(resource: Resource): Promise<void>;

}

export enum LanguageServerActivator {

Jedi = 'Jedi',

DotNet = 'DotNet'

}

export const ILanguageServerActivator = Symbol('ILanguageServerActivator');

export interface ILanguageServerActivator extends IDisposable {

activate(resource: Resource): Promise<void>;

}

export type FolderVersionPair = { path: string; version: SemVer };

export const ILanguageServerFolderService = Symbol('ILanguageServerFolderService');

export interface ILanguageServerFolderService {

getLanguageServerFolderName(resource: Resource): Promise<string>;

getLatestLanguageServerVersion(resource: Resource): Promise<NugetPackage | undefined>;

getCurrentLanguageServerDirectory(): Promise<FolderVersionPair | undefined>;

}

export const ILanguageServerDownloader = Symbol('ILanguageServerDownloader');

export interface ILanguageServerDownloader {

downloadLanguageServer(destinationFolder: string, resource: Resource): Promise<void>;

}

export const ILanguageServerPackageService = Symbol('ILanguageServerPackageService');

export interface ILanguageServerPackageService {

getNugetPackageName(): string;

getLatestNugetPackageVersion(resource: Resource): Promise<NugetPackage>;

getLanguageServerDownloadChannel(): LanguageServerDownloadChannels;

}

export const MajorLanguageServerVersion = Symbol('MajorLanguageServerVersion');

export const IDownloadChannelRule = Symbol('IDownloadChannelRule');

export interface IDownloadChannelRule {

shouldLookForNewLanguageServer(currentFolder?: FolderVersionPair): Promise<boolean>;

}

export const ILanguageServerCompatibilityService = Symbol('ILanguageServerCompatibilityService');

export interface ILanguageServerCompatibilityService {

isSupported(): Promise<boolean>;

}

export enum LanguageClientFactory {

base = 'base',

simple = 'simple',

downloaded = 'downloaded'

}

export const ILanguageClientFactory = Symbol('ILanguageClientFactory');

export interface ILanguageClientFactory {

createLanguageClient(resource: Resource, clientOptions: LanguageClientOptions, env?: NodeJS.ProcessEnv): Promise<LanguageClient>;

}

export const ILanguageServerAnalysisOptions = Symbol('ILanguageServerAnalysisOptions');

export interface ILanguageServerAnalysisOptions extends IDisposable {

readonly onDidChange: Event<void>;

initialize(resource: Resource): Promise<void>;

getAnalysisOptions(): Promise<LanguageClientOptions>;

}

export const ILanguageServerManager = Symbol('ILanguageServerManager');

export interface ILanguageServerManager extends IDisposable {

start(resource: Resource): Promise<void>;

}

export const ILanguageServerExtension = Symbol('ILanguageServerExtension');

export interface ILanguageServerExtension extends IDisposable {

readonly invoked: Event<void>;

loadExtensionArgs?: {};

register(): void;

}

export const ILanguageServer = Symbol('ILanguageServer');

export interface ILanguageServer extends IDisposable {

/**

* LanguageClient in use

*/

languageClient: LanguageClient | undefined;

start(resource: Resource, options: LanguageClientOptions): Promise<void>;

/**

* Sends a request to LS so as to load other extensions.

* This is used as a plugin loader mechanism.

* Anyone (such as intellicode) wanting to interact with LS, needs to send this request to LS.

* @param {{}} [args]

* @memberof ILanguageServer

*/

loadExtension(args?: {}): void;

}

export enum PlatformName {

Windows32Bit = 'win-x86',

Windows64Bit = 'win-x64',

Mac64Bit = 'osx-x64',

Linux64Bit = 'linux-x64'

}

export const IPlatformData = Symbol('IPlatformData');

export interface IPlatformData {

readonly platformName: PlatformName;

readonly engineDllName: string;

readonly engineExecutableName: string;

}