import type { Plugin } from 'vite'
import { getReadingTime } from './../theme/utils'
// import { replacer } from '../../../scripts/utils'

export function MarkdownTransform(): Plugin {
    return {
        name: 'toshiki-notebook-md-transform',
        enforce: 'pre',
        async transform(code, id) {
            if (!id.match(/\.md\b/)) return null
            // convert links to relative
            code = code.replace(/https?:\/\/note.toshiki\.dev\//g, '/')
            const [_name, i] = id.split('/').slice(-2)

            // convert img by applying regex
            // const imgRegex = /!\[(.+?)\]\((.+?)\)/g;
            // let imgMatches = imgRegex.exec(code);
            // while (imgMatches) {
            //   const [text, link] = imgMatches.slice(1);
            //   code = code.replace(
            //     imgMatches[0],
            //     `<img src="${link}" alt="${text || "img"}" />`
            //   );
            //   imgMatches = imgRegex.exec(code);
            // }

            // convert links to components
            // const linkRegex = /\[(.+?)\]\((.+?)\)/g;
            // let matches = linkRegex.exec(code);
            // while (matches) {
            //   const [text, link] = matches.slice(1);
            //   code = code.replace(
            //     matches[0],
            //     `<CustomLink title="${text}" href="${link}" />`
            //   );
            //   matches = linkRegex.exec(code);
            // }

            // cut index.md
            if (_name === 'docs' && i === 'index.md') return code

            // const { footer } = await getDocsMarkdown()
            // code = replacer(code, footer, 'FOOTER', 'tail')
            const { readTime, words } = getReadingTime(code)
            code = code.replace(/(#\s.+?\n)/, `$1\n\n<PageInfo readTime="${readTime}" words="${words}"/>\n`)

            return code
        },
    }
}

// export async function getDocsMarkdown() {
//   const CopyRightSection = `
//   <CopyRight/>`;

//   const footer = `${CopyRightSection}\n`;

//   return {
//     footer,
//   };
// }