import BlogPostCard from './BlogPostCard'
import BLOG from '@/blog.config'
import BlogPostListEmpty from './BlogPostListEmpty'
import PaginationSimple from './PaginationSimple'
import { useRouter } from 'next/router'

/**
 * 文章列表分页表格
 * @param page 当前页
 * @param posts 所有文章
 * @param tags 所有标签
 * @returns {JSX.Element}
 * @constructor
 */
const BlogPostListPage = ({ page = 1, posts = [], postCount }) => {
  let filteredPosts = Object.assign(posts)
  const searchKey = getSearchKey()
  if (searchKey) {
    filteredPosts = posts.filter(post => {
      const tagContent = post.tags ? post.tags.join(' ') : ''
      const searchContent = post.title + post.summary + tagContent
      return searchContent.toLowerCase().includes(searchKey.toLowerCase())
    })
  }
  const filteredPostsCount = filteredPosts.length
  const totalPage = Math.ceil(filteredPostsCount / BLOG.POSTS_PER_PAGE)

  if (!posts || posts.length === 0) {
    return <BlogPostListEmpty />
  } else {
    return (
      <div id="container" className='w-full justify-center'>
        {/* 文章列表 */}
        {filteredPosts.map(post => (
          <BlogPostCard key={post.id} post={post} />
        ))}
        <PaginationSimple page={page} totalPage={totalPage} />
      </div>
    )
  }
}

function getSearchKey () {
  const router = useRouter()
  if (router.query && router.query.s) {
    return router.query.s
  }
  return null
}

export default BlogPostListPage