tailwind-nextjs-blog/components/comments/Giscus.tsx

62 lines
2.2 KiB
TypeScript

import React, { useState, useEffect, useCallback } from 'react'
import { useTheme } from 'next-themes'
import siteMetadata from '@/data/siteMetadata'
interface Props {
mapping: string
}
const Giscus = ({ mapping }: Props) => {
const [enableLoadComments, setEnabledLoadComments] = useState(true)
const { theme, resolvedTheme } = useTheme()
const commentsTheme =
siteMetadata.comment.giscusConfig.themeURL === ''
? theme === 'dark' || resolvedTheme === 'dark'
? siteMetadata.comment.giscusConfig.darkTheme
: siteMetadata.comment.giscusConfig.theme
: siteMetadata.comment.giscusConfig.themeURL
const COMMENTS_ID = 'comments-container'
const LoadComments = useCallback(() => {
setEnabledLoadComments(false)
const script = document.createElement('script')
script.src = 'https://giscus.app/client.js'
script.setAttribute('data-repo', siteMetadata.comment.giscusConfig.repo)
script.setAttribute('data-repo-id', siteMetadata.comment.giscusConfig.repositoryId)
script.setAttribute('data-category', siteMetadata.comment.giscusConfig.category)
script.setAttribute('data-category-id', siteMetadata.comment.giscusConfig.categoryId)
script.setAttribute('data-mapping', mapping)
script.setAttribute('data-reactions-enabled', siteMetadata.comment.giscusConfig.reactions)
script.setAttribute('data-emit-metadata', siteMetadata.comment.giscusConfig.metadata)
script.setAttribute('data-theme', commentsTheme)
script.setAttribute('crossorigin', 'anonymous')
script.async = true
const comments = document.getElementById(COMMENTS_ID)
if (comments) comments.appendChild(script)
return () => {
const comments = document.getElementById(COMMENTS_ID)
if (comments) comments.innerHTML = ''
}
}, [commentsTheme, mapping])
// Reload on theme change
useEffect(() => {
const iframe = document.querySelector('iframe.giscus-frame')
if (!iframe) return
LoadComments()
}, [LoadComments])
return (
<div className="pt-6 pb-6 text-center text-gray-700 dark:text-gray-300">
{enableLoadComments && <button onClick={LoadComments}>Load Comments</button>}
<div className="giscus" id={COMMENTS_ID} />
</div>
)
}
export default Giscus