import { getLanguageService } from 'vscode-html-languageservice';
import { createConnection, ProposedFeatures, TextDocuments, TextDocumentSyncKind } from 'vscode-languageserver';
import { TextDocument } from 'vscode-languageserver-textdocument';

let connection = createConnection(ProposedFeatures.all);
let documents: TextDocuments<TextDocument> = new TextDocuments(TextDocument);

const htmlLanguageService = getLanguageService();

connection.onInitialize(() => {
  return {
    capabilities: {
      textDocumentSync: TextDocumentSyncKind.Full,
      completionProvider: {
        resolveProvider: false,
      },
    },
  };
});

connection.onCompletion(async (textDocumentPosition, token) => {
  console.log(token);
  const document = documents.get(textDocumentPosition.textDocument.uri);
  if (!document) {
    return null;
  }

  return htmlLanguageService.doComplete(document, textDocumentPosition.position, htmlLanguageService.parseHTMLDocument(document));
});

documents.listen(connection);
connection.listen();