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 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 Image from 'next/image'

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'
import { useGlobal } from '@/lib/global'
import { getNotionPageData } from '@/lib/notion/getNotionData'
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
import { faAngleDoubleLeft, faAngleDoubleRight, faEye, faFolderOpen } from '@fortawesome/free-solid-svg-icons'

const mapPageUrl = id => {
  return 'https://www.notion.so/' + id.replace(/-/g, '')
}
const ArticleDetail = ({ post, blockMap, tags, prev, next, allPosts, 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
  const { locale } = useGlobal()
  const date = formatDate(post?.date?.start_date || post.createdTime, BLOG.lang)

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

    <div id='article-wrapper' ref={targetRef} className='flex-grow dark:bg-black bg-gray-200'>

      <div className='max-w-5xl mx-auto mt-16 xl:mt-32 w-screen md:w-full '>
        {post.type && !post.type.includes('Page') && (<>
          <header className='w-full h-60 lg:h-96 transform duration-200 md:flex-shrink-0'>
            <Image src={(post.page_cover && post.page_cover.length > 1) ? post.page_cover : BLOG.defaultImgCover} loading='eager' objectFit='cover' layout='fill' alt={post.title} />
          </header>
        </>)}

        <article className='animate__fadeIn animate__animated subpixel-antialiased lg:pt-32 lg:px-44 px-5 py-2 dark:border-gray-700 bg-white dark:bg-gray-800'>
          {/* 文章Title */}
          <h1 className='font-bold text-3xl pt-5 text-black dark:text-white italic'> {post.title}</h1>
          <hr className='mt-4' />
          <section className='flex-nowrap flex  mt-1 dark:text-white'>
            <Link href={`/category/${post.category}`} passHref>
              <div className='cursor-pointer text-md py-2 ml-1 mr-3 text-gray-500 dark:text-gray-300 hover:text-black dark:hover:text-white'>
                <FontAwesomeIcon icon={faFolderOpen} className='mr-1' />{post.category}
              </div>
            </Link>
            {post.type[0] !== 'Page' && (
              <Link href={`/archive#${post?.date?.start_date?.substr(0, 7)}`} passHref>
                <div className='pl-1 cursor-pointer hover:text-gray-700  dark:hover:text-gray-200 text-gray-400 dark:text-gray-400 leading-10'>
                {date}
                </div>
              </Link>
            )}

            <div id='busuanzi_container_page_pv' className='hidden'>
              <FontAwesomeIcon icon={faEye} className='text-gray-500 dark:text-gray-400 mt-3 ml-2' />
              &nbsp;<span id='busuanzi_value_page_pv' className='text-gray-500 dark:text-gray-400 leading-6'></span>
            </div>
          </section>

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

          {/* 推荐文章 */}
          <RecommendPosts currentPost={post} totalPosts={allPosts} />

          {/* 版权声明 */}
          <section className='text-sm 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>本文作者: <Link href='/article/about'><a className='hover:underline'>{BLOG.author}</a></Link></li>
              <li>本文链接: <a className='hover:underline' href={url}>{url}</a></li>
              <li>版权声明: 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>

          {/* 标签列表 */}
          <section className='md:flex md:justify-between'>
            {post.tagItems && (
              <div className='flex flex-nowrap leading-8 p-1 py-4 overflow-x-auto'>
                <div className='hidden md:block dark:text-gray-300'>{locale.COMMON.TAGS}：</div>
                {post.tagItems.map(tag => (
                  <TagItem key={tag.name} tag={tag} />
                ))}
              </div>
            )}
            <div>
              <ShareBar post={post} />
            </div>
          </section>

        </article>

        <div className='text-gray-800 dark:text-gray-300 dark:bg-gray-900 bg-gray-50 px-5 '>
          <div className='flex flex-wrap lg:flex-nowrap lg:space-x-10 justify-between py-2'>
            <Link href={`/article/${prev.slug}`} passHref>
              <div className='py-3 text-blue-500 text-lg hover:underline cursor-pointer'>
                <FontAwesomeIcon icon={faAngleDoubleLeft} className='mr-1' />{prev.title}</div>
            </Link>
            <Link href={`/article/${next.slug}`} passHref>
              <div className='flex py-3 text-blue-500 text-lg hover:underline cursor-pointer'>{next.title}
                <FontAwesomeIcon icon={faAngleDoubleRight} className='ml-1 my-1' />
              </div>
            </Link>
          </div>
        </div>

        {/* 评论互动 */}
        <div
          className='my-10 w-screen md:w-full overflow-x-auto dark:border-gray-700 bg-white dark:bg-gray-700'>
          <Comment frontMatter={post} />
        </div>
      </div>
    </div>

    {/* 悬浮目录按钮 */}
    <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 = []
  if (BLOG.isProd) {
    posts = await getAllPosts({ from: 'slug - paths', includePage: true })
  }
  return {
    paths: posts.map(row => `${BLOG.path}/article/${row.slug}`),
    fallback: true
  }
}

export async function getStaticProps ({ params: { slug } }) {
  const from = `slug-props-${slug}`
  const notionPageData = await getNotionPageData({ from })
  let allPosts = await getAllPosts({ notionPageData, from, includePage: true })
  const post = allPosts.find(p => p.slug === slug)

  if (!post) {
    return { props: {}, revalidate: 1 }
  }

  const blockMap = await getPostBlocks(post.id, 'slug')
  post.toc = []
  if (blockMap) {
    post.toc = getPageTableOfContents(post, blockMap)
  }

  allPosts = allPosts.filter(post => post.type[0] === 'Post')
  const tagOptions = notionPageData.tagOptions
  const tags = await getAllTags({ allPosts, tagOptions })
  const categories = await getAllCategories(allPosts)
  // 上一篇、下一篇文章关联
  const index = allPosts.indexOf(post)
  const prev = allPosts.slice(index - 1, index)[0] ?? allPosts.slice(-1)[0]
  const next = allPosts.slice(index + 1, index + 2)[0] ?? allPosts[0]

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

export default ArticleDetail