import { NextSeo } from "next-seo";
import MdxContent from "./MdxContent";
import siteConfig from "../config/siteConfig";

import LiteYouTubeEmbed from "react-lite-youtube-embed";
import { YOUTUBE_ID_REGEX } from "lib/constants";

export default function MdxPage({ body, meta }) {
  const { title, description, date, keywords, youtube, podcast, image, _raw } =
    meta;

  const youtubeId = youtube && YOUTUBE_ID_REGEX.test(youtube) && youtube.match(YOUTUBE_ID_REGEX)[1]

  const PodcastIcon = siteConfig.social.find((s) => s.name === "Podcast").icon;

  const titleFromUrl = _raw.flattenedPath
    .split("/")
    .pop()
    .replace(/-/g, " ")
    // capitalize first char of each word
    .replace(/(^\w{1})|(\s{1}\w{1})/g, (str) => str.toUpperCase());

  const SeoTitle = title ?? titleFromUrl;
  const imageUrl = image ? siteConfig.url + image : null;

  // enable editing for all pages for now
  const editUrl = siteConfig.repoRoot + siteConfig.repoEditPath + _raw.sourceFilePath

  return (
    <>
      <NextSeo
        title={SeoTitle}
        description={description}
        canonical={`${siteConfig.url}/${_raw.flattenedPath}`}
        openGraph={{
          title: SeoTitle,
          description: description,
          url: `${siteConfig.url}/${_raw.flattenedPath}`,
          type: "article",
          article: {
            tags: keywords ? keywords.split(",") : [],
          },
          images: imageUrl
            ? [
                {
                  url: imageUrl,
                  width: 1200,
                  height: 627,
                  alt: title,
                  type: "image/png",
                },
              ]
            : siteConfig.nextSeo.openGraph.images,
        }}
        additionalMetaTags={[
          { name: "keywords", content: keywords ? keywords : "" },
        ]}
      />
      <div className="max-w-7xl mx-auto px-2 sm:px-6 md:px-8">
        <article className="prose dark:prose-invert prose-a:break-words mx-auto lg:mr-[20rem] p-6">
          <header>
            <div className="mb-6">
              {title && <h1 className="mb-0">{title}</h1>}
              {date && (
                <p className="text-gray-900 dark:text-gray-500 text-sm pl-2">
                  on {date}
                </p>
              )}
              {description && <p className="">{description}</p>}
              {youtubeId && <LiteYouTubeEmbed id={youtubeId} />}
              {podcast && (
                <div className="pt-4">
                  <ul className="list-disc">
                    <li>
                      <a
                        className="flex items-center"
                        target="_blank"
                        rel="noopener"
                        href={podcast}
                      >
                        <div className="w-4 mr-2">
                          <PodcastIcon />
                        </div>
                        <p className="m-0">Listen to this podcast</p>
                      </a>
                    </li>
                  </ul>
                </div>
              )}
            </div>
          </header>
          <main className="my-6">
            <MdxContent body={body} />
            {editUrl && (
              <div className="mt-12 mb-6">
                <a
                  className="flex no-underline font-semibold text-yellow-li"
                  href={editUrl}
                  target="_blank"
                >
                  Edit this page
                  <span className="mx-1">
                    <svg
                      xmlns="http://www.w3.org/2000/svg"
                      className="h-6 w-6"
                      fill="none"
                      viewBox="0 0 24 24"
                      stroke="currentColor"
                      strokeWidth="2"
                    >
                      <path
                        strokeLinecap="round"
                        strokeLinejoin="round"
                        d="M10 6H6a2 2 0 00-2 2v10a2 2 0 002 2h10a2 2 0 002-2v-4M14 4h6m0 0v6m0-6L10 14"
                      />
                    </svg>
                  </span>
                </a>
              </div>
            )}
          </main>
        </article>
      </div>
    </>
  );
}