import markdown from '@wcj/markdown-to-html';
import rehypeDocument from 'rehype-document';
import remarkGemoji from 'remark-gemoji';
import rehypeRaw from 'rehype-raw';
import rehypeAutolinkHeadings from 'rehype-autolink-headings';
import rehypeSlug from 'rehype-slug';
import { htmlTagAddAttri } from './nodes/htmlTagAddAttri.mjs';
import { footer } from './nodes/footer.mjs';
import { header } from './nodes/header.mjs';
import { rehypeUrls } from './utils/rehypeUrls.mjs';
import { tooltips } from './utils/tooltips.mjs';
import { homeCardIcons } from './utils/homeCardIcons.mjs';
import { getTocsTree, getTocsTitleNode, getTocsTitleNodeWarpper, addTocsInWarp } from './utils/getTocsTree.mjs';
import { rehypeTitle } from './utils/rehypeTitle.mjs';
import { anchorPoint } from './utils/anchorPoint.mjs';
import { rehypePreviewHTML } from './utils/rehypePreviewHTML.mjs';

const favicon = `data:image/svg+xml,%3Csvg%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20height%3D%221em%22%20width%3D%221em%22%3E%20%3Cpath%20d%3D%22m21.66%2010.44-.98%204.18c-.84%203.61-2.5%205.07-5.62%204.77-.5-.04-1.04-.13-1.62-.27l-1.68-.4c-4.17-.99-5.46-3.05-4.48-7.23l.98-4.19c.2-.85.44-1.59.74-2.2%201.17-2.42%203.16-3.07%206.5-2.28l1.67.39c4.19.98%205.47%203.05%204.49%207.23Z%22%20fill%3D%22%23c9d1d9%22%2F%3E%20%3Cpath%20d%3D%22M15.06%2019.39c-.62.42-1.4.77-2.35%201.08l-1.58.52c-3.97%201.28-6.06.21-7.35-3.76L2.5%2013.28c-1.28-3.97-.22-6.07%203.75-7.35l1.58-.52c.41-.13.8-.24%201.17-.31-.3.61-.54%201.35-.74%202.2l-.98%204.19c-.98%204.18.31%206.24%204.48%207.23l1.68.4c.58.14%201.12.23%201.62.27Zm2.43-8.88c-.06%200-.12-.01-.19-.02l-4.85-1.23a.75.75%200%200%201%20.37-1.45l4.85%201.23a.748.748%200%200%201-.18%201.47Z%22%20fill%3D%22%23228e6c%22%20%2F%3E%20%3Cpath%20d%3D%22M14.56%2013.89c-.06%200-.12-.01-.19-.02l-2.91-.74a.75.75%200%200%201%20.37-1.45l2.91.74c.4.1.64.51.54.91-.08.34-.38.56-.72.56Z%22%20fill%3D%22%23228e6c%22%20%2F%3E%20%3C%2Fsvg%3E`;

export function create(str = '', options = {}) {
  let title = str.match(/[^===]+(?=[===])/g) || [];
  let description = str.match(/\n==={1,}\n+([\s\S]*?)\n/g) || [];
  title = title[0] || '';
  description = (description[0] || '')
    .replace(/^\n[=\n]+/, '')
    .replace(/\[([\s\S]*?)?\]\(([\s\S]*?)?\)/g, '$1')
    .replace(/\n/, '');
  const subTitle = options.filename && !options.isHome ? `${options.filename} cheatsheet & ` : '';
  const mdOptions = {
    showLineNumbers: false,
    hastNode: false,
    remarkPlugins: [remarkGemoji],
    rehypePlugins: [
      rehypeSlug,
      rehypeAutolinkHeadings,
      [
        rehypeDocument,
        {
          title: `${title ? `${title} & ` : ''} ${subTitle} Quick Reference`,
          css: [...options.css],
          link: [{ rel: 'icon', href: favicon, type: 'image/svg+xml' }],
          meta: [
            { description: `${description}为开发人员分享快速参考备忘单。` },
            { keywords: `Quick,Reference,cheatsheet,${(!options.isHome && options.filename) || ''}` },
          ],
        },
      ],
    ],
    filterPlugins: (type, plugins = []) => {
      if (type === 'rehype') {
        let rehypePrism = null;
        const dt = plugins.filter((plug) => {
          if (Array.isArray(plug) && /(rehypePrism)/.test(plug[0].name)) {
            rehypePrism = plug;
          }
          return /(rehypeRaw|rehypePrism)/.test(plug.name) ? false : true;
        });
        // 放在 rehypeDocument 前面
        dt.unshift(rehypeRaw);
        if (rehypePrism) {
          dt.unshift(rehypePrism);
        }
        dt.unshift(rehypePreviewHTML);
        return dt;
      }
      return plugins;
    },
    rewrite: (node, index, parent) => {
      rehypeTitle(node, options.filename);
      homeCardIcons(node, parent, options.isHome);
      tooltips(node, index, parent);
      htmlTagAddAttri(node, options);
      rehypeUrls(node);
      if (node.children) {
        if (node.type === 'element' && node.tagName === 'body') {
          const tocsData = getTocsTree([...node.children]);
          if (!options.isHome) {
            const tocsMenus = getTocsTitleNode([...tocsData]);
            node.children = addTocsInWarp([...tocsData], getTocsTitleNodeWarpper(tocsMenus));
          } else {
            node.children = tocsData;
          }
          node.children.unshift(header(options));
          node.children.push(footer());
          node.children.push(anchorPoint());
        }
      }
    },
  };

  return markdown(str, mdOptions);
}
