import { ReactNode } from 'react';
import { CoreContent } from 'pliny/utils/contentlayer';
import type { Blog, Authors } from 'contentlayer/generated';
import Comments from '@/components/Comments';
import Link from '@/components/Link';
import PageTitle from '@/components/PageTitle';
import SectionContainer from '@/components/SectionContainer';
import Image from '@/components/Image';
import Tag from '@/components/Tag';
import siteMetadata from '@/data/siteMetadata';
import ScrollTopAndComment from '@/components/ScrollTopAndComment';

const editUrl = (path) =>
  `${siteMetadata.siteRepo}/raw/branch/master/data/${path}`;

const Copyright = () => (
  <a
    rel="license"
    href="http://creativecommons.org/licenses/by-sa/4.0/"
    className="inline-flex self-center">
    <Image
      className="border-0"
      alt="知识共享许可协议"
      width={88}
      height={15}
      src="https://i.creativecommons.org/l/by-sa/4.0/80x15.png"
    />
  </a>
);

const postDateTemplate: Intl.DateTimeFormatOptions = {
  weekday: 'long',
  year: 'numeric',
  month: 'long',
  day: 'numeric',
};

interface LayoutProps {
  content: CoreContent<Blog>;
  authorDetails: CoreContent<Authors>[];
  next?: { path: string; title: string };
  prev?: { path: string; title: string };
  children: ReactNode;
}

export default function PostLayout({
  content,
  authorDetails,
  next,
  prev,
  children,
}: LayoutProps) {
  const { filePath, path, slug, date, title, tags } = content;
  const basePath = path.split('/')[0];

  return (
    <SectionContainer>
      <ScrollTopAndComment />
      <article>
        <div className="xl:divide-y xl:divide-gray-200 xl:dark:divide-gray-700">
          <header className="pt-6 xl:pb-6">
            <div className="space-y-1 text-center">
              <dl className="space-y-10">
                <div>
                  <dt className="sr-only">Published on</dt>
                  <dd className="text-base font-medium leading-6 text-gray-500 dark:text-gray-400">
                    <time dateTime={date}>
                      {new Date(date).toLocaleDateString(
                        siteMetadata.locale,
                        postDateTemplate,
                      )}
                    </time>
                  </dd>
                </div>
              </dl>
              <div>
                <PageTitle>{title}</PageTitle>
              </div>
            </div>
          </header>
          <div className="grid-rows-[auto_1fr] divide-y divide-gray-200 pb-8 dark:divide-gray-700 xl:grid xl:grid-cols-4 xl:gap-x-6 xl:divide-y-0">
            <dl className="pb-10 pt-6 xl:border-b xl:border-gray-200 xl:pt-11 xl:dark:border-gray-700">
              <dt className="sr-only">Authors</dt>
              <dd>
                <ul className="flex flex-wrap justify-center gap-4 sm:space-x-12 xl:block xl:space-x-0 xl:space-y-8">
                  {authorDetails.map((author) => (
                    <li
                      className="flex items-center space-x-2"
                      key={author.name}>
                      {author.avatar && (
                        <Image
                          src={author.avatar}
                          width={38}
                          height={38}
                          alt="avatar"
                          className="h-10 w-10 rounded-full"
                        />
                      )}
                      <dl className="whitespace-nowrap text-sm font-medium leading-5">
                        <dt className="sr-only">Name</dt>
                        <dd className="text-gray-900 dark:text-gray-100">
                          {author.name}
                        </dd>
                        <dt className="sr-only">Twitter</dt>
                        <dd>
                          {author.twitter && (
                            <Link
                              href={author.twitter}
                              className="text-primary-500 hover:text-primary-600 dark:hover:text-primary-400">
                              {author.twitter.replace(
                                'https://twitter.com/',
                                '@',
                              )}
                            </Link>
                          )}
                        </dd>
                      </dl>
                    </li>
                  ))}
                </ul>
              </dd>
            </dl>
            <div className="divide-y divide-gray-200 dark:divide-gray-700 xl:col-span-3 xl:row-span-2 xl:pb-0">
              <div className="prose max-w-none pb-8 pt-10 dark:prose-invert">
                {children}
              </div>
              <div className="pb-6 pt-6 text-sm text-gray-700 dark:text-gray-300 flex items-center gap-4 ">
                <Copyright />
                <Link href={editUrl(filePath)}>{'View source'}</Link>
              </div>
              {siteMetadata.comments && (
                <div
                  className="pb-6 pt-6 text-center text-gray-700 dark:text-gray-300"
                  id="comment">
                  <Comments slug={slug} />
                </div>
              )}
            </div>
            <footer>
              <div className="divide-gray-200 text-sm font-medium leading-5 dark:divide-gray-700 xl:col-start-1 xl:row-start-2 xl:divide-y">
                {tags && (
                  <div className="py-4 xl:py-8">
                    <h2 className="text-xs uppercase tracking-wide text-gray-500 dark:text-gray-400">
                      Tags
                    </h2>
                    <div className="flex flex-wrap">
                      {tags.map((tag) => (
                        <Tag key={tag} text={tag} />
                      ))}
                    </div>
                  </div>
                )}
                {(next || prev) && (
                  <div className="flex justify-between py-4 xl:block xl:space-y-8 xl:py-8">
                    {prev && prev.path && (
                      <div>
                        <h2 className="text-xs uppercase tracking-wide text-gray-500 dark:text-gray-400">
                          Previous Article
                        </h2>
                        <div className="text-primary-500 hover:text-primary-600 dark:hover:text-primary-400">
                          <Link href={`/${prev.path}`}>{prev.title}</Link>
                        </div>
                      </div>
                    )}
                    {next && next.path && (
                      <div>
                        <h2 className="text-xs uppercase tracking-wide text-gray-500 dark:text-gray-400">
                          Next Article
                        </h2>
                        <div className="text-primary-500 hover:text-primary-600 dark:hover:text-primary-400">
                          <Link href={`/${next.path}`}>{next.title}</Link>
                        </div>
                      </div>
                    )}
                  </div>
                )}
              </div>
              <div className="pt-4 xl:pt-8">
                <Link
                  href={`/${basePath}`}
                  className="text-primary-500 hover:text-primary-600 dark:hover:text-primary-400"
                  aria-label="Back to the blog">
                  &larr; Back to the blog
                </Link>
              </div>
            </footer>
          </div>
        </div>
      </article>
    </SectionContainer>
  );
}