function didOpenTextDocument()

in lsp-multi-server-sample/client/src/extension.ts [55:107]
46 lines of code
8 McCabe index (conditional complexity)

	function didOpenTextDocument(document: TextDocument): void {
		// We are only interested in language mode text
		if (document.languageId !== 'plaintext' || (document.uri.scheme !== 'file' && document.uri.scheme !== 'untitled')) {
			return;
		}

		const uri = document.uri;
		// Untitled files go to a default client.
		if (uri.scheme === 'untitled' && !defaultClient) {
			const debugOptions = { execArgv: ["--nolazy", "--inspect=6010"] };
			const serverOptions = {
				run: { module, transport: TransportKind.ipc },
				debug: { module, transport: TransportKind.ipc, options: debugOptions}
			};
			const clientOptions: LanguageClientOptions = {
				documentSelector: [
					{ scheme: 'untitled', language: 'plaintext' }
				],
				diagnosticCollectionName: 'lsp-multi-server-example',
				outputChannel: outputChannel
			};
			defaultClient = new LanguageClient('lsp-multi-server-example', 'LSP Multi Server Example', serverOptions, clientOptions);
			defaultClient.start();
			return;
		}
		let folder = Workspace.getWorkspaceFolder(uri);
		// Files outside a folder can't be handled. This might depend on the language.
		// Single file languages like JSON might handle files outside the workspace folders.
		if (!folder) {
			return;
		}
		// If we have nested workspace folders we only start a server on the outer most workspace folder.
		folder = getOuterMostWorkspaceFolder(folder);

		if (!clients.has(folder.uri.toString())) {
			const debugOptions = { execArgv: ["--nolazy", `--inspect=${6011 + clients.size}`] };
			const serverOptions = {
				run: { module, transport: TransportKind.ipc },
				debug: { module, transport: TransportKind.ipc, options: debugOptions}
			};
			const clientOptions: LanguageClientOptions = {
				documentSelector: [
					{ scheme: 'file', language: 'plaintext', pattern: `${folder.uri.fsPath}/**/*` }
				],
				diagnosticCollectionName: 'lsp-multi-server-example',
				workspaceFolder: folder,
				outputChannel: outputChannel
			};
			const client = new LanguageClient('lsp-multi-server-example', 'LSP Multi Server Example', serverOptions, clientOptions);
			client.start();
			clients.set(folder.uri.toString(), client);
		}
	}