const markdownItFootnote = require("markdown-it-footnote");

// Wraps markdown-it-footnote and customizes rendering to remove brackets
const markdownItFootnoteCustom = (md) => {
  md.use(markdownItFootnote);

  md.renderer.rules.footnote_ref = (tokens, idx, options, env, slf) => {
    const id = slf.rules.footnote_anchor_name(tokens, idx, options, env, slf);
    const n = Number(tokens[idx].meta.id + 1).toString();
    let refid = id;

    if (tokens[idx].meta.subId > 0) {
      refid += ':' + tokens[idx].meta.subId;
    }

    return '<sup class="footnote-ref"><a href="#fn' + id + '" id="fnref' + refid + '">' + n + '</a></sup>';
  };
};

module.exports = markdownItFootnoteCustom;