const converter = new showdown.Converter();

fetch("./event-test.xml")
  .then((response) => response.text())
  .then((jsonResponse) => parseXML(jsonResponse))
  .catch((error) => console.error(error));

const parseXML = (XML) => {
  const eventItemRegex = /<eventitem.*>(.|\n)*?<\/eventitem>/g;
  const shortRegex = /(?<=<short>)(.|\n)*?(?=<\/short>)/g;
  const abstractRegex = /(?<=<abstract>)(.|\n)*?(?=<\/abstract>)/g;

  const dateRegex = /(?<=<eventitem(.*)date=")(.|\n)*?(?="(.*)>)/g;
  const timeRegex = /(?<=<eventitem(.*)time=")(.|\n)*?(?="(.*)>)/g;
  const roomRegex = /(?<=<eventitem(.*)room=")(.|\n)*?(?="(.*)>)/g;
  const titleRegex = /(?<=<eventitem(.*)title=")(.|\n)*?(?="(.*)>)/g;

  let eventItems = [];

  while ((eventItems = eventItemRegex.exec(XML)) !== null) {
    dateRegex.lastIndex = 0;
    timeRegex.lastIndex = 0;
    roomRegex.lastIndex = 0;
    titleRegex.lastIndex = 0;
    shortRegex.lastIndex = 0;
    abstractRegex.lastIndex = 0;

    const eventItem = eventItems[0];
    let dateStr = dateRegex.exec(eventItem);
    let timeStr = timeRegex.exec(eventItem);
    date = new Date(dateStr[0] + " " + timeStr[0]);
    let room = roomRegex.exec(eventItem);
    let title = titleRegex.exec(eventItem);
    let short = shortRegex.exec(eventItem);
    let abstract = abstractRegex.exec(eventItem);

    console.log(eventItem);
    console.log(date);
    console.log(room[0]);
    console.log(title[0]);
    console.log(converter.makeMarkdown(short[0]));
    console.log(converter.makeMarkdown(abstract[0]));
  }
};