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import { siteConfig } from '@/lib/config'
import { useEffect, useRef, useState } from 'react'
import BlogCard from './BlogCard'
import BlogPostListEmpty from './BlogListEmpty'
import { useGlobal } from '@/lib/global'
/**
* 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 BlogListScroll = props => {
const { posts = [], siteInfo } = props
const { locale } = useGlobal()
const targetRef = useRef(null)
const [page, updatePage] = useState(1)
let hasMore = false
const postsToShow = posts
? Object.assign(posts).slice(0, parseInt(siteConfig('POSTS_PER_PAGE')) * page)
: []
if (posts) {
const totalCount = posts.length
hasMore = page * parseInt(siteConfig('POSTS_PER_PAGE')) < totalCount
}
const handleGetMore = () => {
if (!hasMore) return
updatePage(page + 1)
}
// 监听滚动自动分页加载
const scrollTrigger = () => {
requestAnimationFrame(() => {
const scrollS = window.scrollY + window.outerHeight
const clientHeight = targetRef ? (targetRef.current ? (targetRef.current.clientHeight) : 0) : 0
if (scrollS > clientHeight + 100) {
handleGetMore()
}
})
}
useEffect(() => {
window.addEventListener('scroll', scrollTrigger)
return () => {
window.removeEventListener('scroll', scrollTrigger)
}
}, [])
if (!posts || posts.length === 0) {
return <BlogPostListEmpty />
} else {
return (
<div id="posts-wrapper" ref={targetRef} className='grid-container' >
{/* 文章列表 */}
{postsToShow?.map(post => (
<div key={post.id} className='grid-item justify-center flex' style={{ breakInside: 'avoid' }}>
<BlogCard index={posts.indexOf(post)} key={post.id} post={post} siteInfo={siteInfo} />
</div>
))}
<div className="w-full my-4 py-4 text-center cursor-pointer "
onClick={handleGetMore}>
{' '}
{hasMore ? locale.COMMON.MORE : `${locale.COMMON.NO_MORE} 😰`}{' '}
</div>
</div>
)
}
}
export default BlogListScroll
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