import { useEffect, useRef, useState } from 'react'
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import { SVG } from '@svgdotjs/svg.js'
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import ImagePreview from '@/app/components/base/image-uploader/image-preview'
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import DOMPurify from 'dompurify'
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export const SVGRenderer = ({ content }: { content: string }) => {
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const svgRef = useRef<HTMLDivElement>(null)
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const [imagePreview, setImagePreview] = useState('')
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const [windowSize, setWindowSize] = useState({
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width: typeof window !== 'undefined' ? window.innerWidth : 0,
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height: typeof window !== 'undefined' ? window.innerHeight : 0,
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})
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const svgToDataURL = (svgElement: Element): string => {
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const svgString = new XMLSerializer().serializeToString(svgElement)
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const base64String = Buffer.from(svgString).toString('base64')
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return `data:image/svg+xml;base64,${base64String}`
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}
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useEffect(() => {
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const handleResize = () => {
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setWindowSize({ width: window.innerWidth, height: window.innerHeight })
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}
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window.addEventListener('resize', handleResize)
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return () => window.removeEventListener('resize', handleResize)
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}, [])
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useEffect(() => {
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if (svgRef.current) {
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try {
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svgRef.current.innerHTML = ''
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const draw = SVG().addTo(svgRef.current)
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const parser = new DOMParser()
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const svgDoc = parser.parseFromString(content, 'image/svg+xml')
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const svgElement = svgDoc.documentElement
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if (!(svgElement instanceof SVGElement))
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throw new Error('Invalid SVG content')
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const originalWidth = Number.parseInt(svgElement.getAttribute('width') || '400', 10)
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const originalHeight = Number.parseInt(svgElement.getAttribute('height') || '600', 10)
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draw.viewbox(0, 0, originalWidth, originalHeight)
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svgRef.current.style.width = `${Math.min(originalWidth, 298)}px`
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const rootElement = draw.svg(DOMPurify.sanitize(content))
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rootElement.click(() => {
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setImagePreview(svgToDataURL(svgElement as Element))
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})
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}
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catch {
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if (svgRef.current)
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svgRef.current.innerHTML = '<span style="padding: 1rem;">Error rendering SVG. Wait for the image content to complete.</span>'
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}
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}
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}, [content, windowSize])
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return (
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<>
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<div ref={svgRef} style={{
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maxHeight: '80vh',
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display: 'flex',
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justifyContent: 'center',
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alignItems: 'center',
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cursor: 'pointer',
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wordBreak: 'break-word',
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whiteSpace: 'normal',
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margin: '0 auto',
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}} />
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{imagePreview && (<ImagePreview url={imagePreview} title='Preview' onCancel={() => setImagePreview('')} />)}
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</>
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)
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}
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export default SVGRenderer
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