import { getAllCategories, getAllPosts, getAllTags, getPostBlocks } from '@/lib/notion'
import BLOG from '@/blog.config'
import { getPageTableOfContents } from 'notion-utils'
import { useRouter } from 'next/router'
import Progress from '@/components/Progress'
import TagItem from '@/components/TagItem'
import formatDate from '@/lib/formatDate'
import { Code, Collection, CollectionRow, Equation, NotionRenderer } from 'react-notion-x'
import RewardButton from '@/components/RewardButton'
import ShareBar from '@/components/ShareBar'
import Comment from '@/components/Comment'
import BaseLayout from '@/layouts/BaseLayout'
import React, { useRef } from 'react'
import Custom404 from '@/pages/404'
import Link from 'next/link'

import 'prismjs/themes/prism-okaidia.css'
import 'prismjs'
import 'prismjs/components/prism-bash'
import 'prismjs/components/prism-markup'
import 'prismjs/components/prism-python'
import 'prismjs/components/prism-javascript'
import 'prismjs/components/prism-typescript'
import RecommendPosts from '@/components/RecommendPosts'
import TocDrawer from '@/components/TocDrawer'
import TocDrawerButton from '@/components/TocDrawerButton'

const mapPageUrl = id => {
  return 'https://www.notion.so/' + id.replace(/-/g, '')
}
const ArticleDetail = ({ post, blockMap, tags, prev, next, posts, categories }) => {
  if (!post) {
    return <Custom404/>
  }
  const meta = {
    title: `${post.title} | ${BLOG.title}`,
    description: post.summary,
    type: 'article',
    tags: post.tags
  }
  const targetRef = useRef(null)
  const drawerRight = useRef(null)
  const url = BLOG.link + useRouter().asPath

  return <BaseLayout meta={meta} tags={tags} post={post} totalPosts={posts} categories={categories} >
    <Progress targetRef={targetRef} />

    <div id='article-wrapper' ref={targetRef} className='flex-grow bg-gray-200 dark:bg-black'>
      {/* 中央区域 wrapper */}
      <header
        className='hover:shadow-2xl hover:scale-105 transform duration-200 mx-auto max-w-5xl mt-16 mb-2 lg:mt-32 md:flex-shrink-0 animate__fadeIn animate__animated'>
        {/* 封面图 */}
        {post.page_cover && post.page_cover.length > 1 && (
          <img className='bg-center object-cover w-full' style={{ maxHeight: '40rem' }} loading="lazy"
               src={post.page_cover} alt={post.title} />
        )}
      </header>

      <article className='hover:shadow-2xl duration-200 shadow-card mb-20 w-screen md:w-full overflow-x-auto md:px-10 px-5 pt-10 max-w-5xl mx-auto dark:border-gray-700 bg-white dark:bg-gray-900'>
        {/* 文章标题 */}
        <h1 className='font-bold text-4xl text-black my-5 dark:text-white animate__animated animate__fadeIn'>
          {post.title}
        </h1>

        <h2 className='text-gray-500 text-xs my-5 dark:text-gray-400 animate__animated animate__fadeIn'>
          {post.summary}
        </h2>

        {/* 文章作者等关联信息 */}
        <div className='justify-between flex flex-wrap bg-gray-100 p-2 dark:bg-gray-900 dark:text-white'>
          <div className='flex-nowrap flex'>
            <div className='py-2 opacity-50'>
              分类：
            </div>
            <Link href={`/category/${post.category}`}>
              <div className='cursor-pointer text-md py-2 mx-3 hover:underline'><i className='fa fa-folder-open-o mr-1'/>{post.category}</div>
            </Link>

            {post.type[0] !== 'Page' && (
              <div className='flex items-start text-gray-500 dark:text-gray-400 leading-10'>
                {formatDate(
                  post?.date?.start_date || post.createdTime,
                  BLOG.lang
                )}
              </div>
            )}
          </div>

          {/* 不蒜子 */}
          <div id='busuanzi_container_page_pv' className='hidden'>
            <a href='/#'
               className='fa fa-eye text-gray-500 text-sm leading-none py-1 px-2'>
              &nbsp;<span id='busuanzi_value_page_pv' className='leading-6'></span>
            </a>
          </div>
        </div>

        <div className='mb-10'>
          {/* Notion文章主体 */}
          {blockMap && (
            <NotionRenderer recordMap={blockMap} mapPageUrl={mapPageUrl}
                            components={{
                              equation: Equation,
                              code: Code,
                              collectionRow: CollectionRow,
                              collection: Collection
                            }}
            />
          )}
        </div>

        <div className='flex justify-center pb-10'>
          <RewardButton />
        </div>

        <RecommendPosts currentPost={post} totalPosts={posts}/>

        {/* 版权声明 */}
        <section
          className='overflow-auto dark:bg-gray-800 dark:text-gray-300 bg-gray-100 p-5 leading-8 border-l-4 border-red-500'>
          <ul>
            <li><strong>本文作者：</strong>{BLOG.author}</li>
            <li><strong>本文链接：</strong> <a href={url}>{url}</a> 《{post.title}》</li>
            <li><strong>版权声明：</strong> 本博客所有文章除特别声明外，均采用 BY-NC-SA 许可协议。转载请注明出处！</li>
          </ul>
        </section>

        <section className='md:flex md:justify-between'>

          {post.tags && (
            <div className='flex flex-nowrap leading-8 p-1 py-4 overflow-x-auto'>
              <div className='hidden md:block dark:text-gray-300'>标签：</div>
              {post.tags.map(tag => (
                <TagItem key={tag} tag={tag} />
              ))}
            </div>
          )}

          <div>
            <ShareBar post={post} />
          </div>

        </section>

        <div className='text-gray-800 my-5 dark:text-gray-300'>
          <hr/>
          <div className='flex flex-wrap lg:flex-nowrap lg:space-x-10 justify-between py-2'>
            <Link href={`/article/${prev.slug}`}><div className='py-3 text-blue-500 text-lg hover:underline cursor-pointer'><i className='fa fa-angle-double-left mr-1'/>{prev.title}</div></Link>
            <Link href={`/article/${next.slug}`}><div className='flex py-3 text-blue-500 text-lg hover:underline cursor-pointer'>{next.title}<i className='fa fa-angle-double-right ml-1'/></div></Link>
          </div>
        </div>
      </article>

      {/* 评论互动 */}
      <div className='shadow-card mb-20 w-screen md:w-full overflow-x-auto md:px-10 px-5 py-10 max-w-5xl mx-auto dark:border-gray-700 bg-white dark:bg-gray-700'>
        <Comment frontMatter={post} />
      </div>

    </div>

    <div className='block lg:hidden'>
      <TocDrawerButton onClick={() => { drawerRight.current.handleSwitchVisible() }} />
      {/* 目录侧边栏 */}
      <TocDrawer post={post} cRef={ drawerRight }/>
    </div>

  </BaseLayout>
}

export async function getStaticPaths () {
  let posts = await getAllPosts({ from: 'slug - paths' })
  posts = posts.filter(post => post.status[0] === 'Published')
  return {
    paths: posts.map(row => `${BLOG.path}/article/${row.slug}`),
    fallback: true
  }
}

export async function getStaticProps ({ params: { slug } }) {
  let posts = await getAllPosts({ from: 'slug-props' })
  posts = posts.filter(post => post.status[0] === 'Published')
  const post = posts.find(t => t.slug === slug)
  if (!post) {
    return {
      props: {},
      revalidate: 1
    }
  }

  const blockMap = await getPostBlocks(post.id, 'slug')
  if (blockMap) {
    post.toc = getPageTableOfContents(post, blockMap)
  } else {
    post.toc = []
  }
  posts = posts.filter(post => post.type[0] === 'Post')
  const tags = await getAllTags(posts)
  const categories = await getAllCategories(posts)

  // 获取推荐文章
  const index = posts.indexOf(post)
  const prev = posts.slice(index - 1, index)[0] ?? posts.slice(-1)[0]
  const next = posts.slice(index + 1, index + 2)[0] ?? posts[0]

  return {
    props: { post, blockMap, tags, prev, next, posts, categories },
    revalidate: 1
  }
}

export default ArticleDetail