import * as path from 'path';
import { workspace, ExtensionContext } from 'vscode';

import {
	LanguageClient,
	LanguageClientOptions,
	ServerOptions,
	TransportKind
} from 'vscode-languageclient/node';

let client: LanguageClient | undefined;

export async function activate(context: ExtensionContext) {
	// If the extension is launched in debug mode then the debug server options are used
	// Otherwise the run options are used
	let serverOptions: ServerOptions = {
		run: {
			command: "cmd.exe",
			args: ["/c", "D:\\projects\\mist\\mist\\analyzer.bat"],
			transport: TransportKind.stdio
		},
		debug: {
			command: "cmd.exe",
			args: ["/c", "D:\\projects\\mist\\mist\\analyzer.bat"],
			transport: TransportKind.stdio
		}
	};	

	// Options to control the language client
	let clientOptions: LanguageClientOptions = {
		// Register the server for plain text documents
		documentSelector: [{ scheme: 'file', language: 'mist' }],
		synchronize: {
			fileEvents: workspace.createFileSystemWatcher('**/mist.json')
		}
	};

	// Create the language client and start the client.
	client = new LanguageClient(
		'MistAnalyzer',
		'Mist Analyzer',
		serverOptions,
		clientOptions
	);

	// Start the client. This will also launch the server
	await client.start();
}

export async function deactivate() {
	await client?.dispose();
	client = undefined;
}