---
import { type LocalImageProps, type RemoteImageProps, getImage, imageConfig } from 'astro:assets';
import type { UnresolvedImageTransform } from '../dist/assets/types';
import { AstroError, AstroErrorData } from '../dist/core/errors/index.js';
import type { HTMLAttributes } from '../types';
// The TypeScript diagnostic for JSX props uses the last member of the union to suggest props, so it would be better for
// LocalImageProps to be last. Unfortunately, when we do this the error messages that remote images get are complete nonsense
// Not 100% sure how to fix this, seems to be a TypeScript issue. Unfortunate.
type Props = LocalImageProps | RemoteImageProps;
const props = Astro.props;
if (props.alt === undefined || props.alt === null) {
throw new AstroError(AstroErrorData.ImageMissingAlt);
}
// As a convenience, allow width and height to be string with a number in them, to match HTML's native `img`.
if (typeof props.width === 'string') {
props.width = parseInt(props.width);
}
if (typeof props.height === 'string') {
props.height = parseInt(props.height);
}
const layout = props.layout ?? imageConfig.experimentalLayout ?? 'none';
const useResponsive = imageConfig.experimentalResponsiveImages && layout !== 'none';
if (useResponsive) {
// Apply defaults from imageConfig if not provided
props.layout ??= imageConfig.experimentalLayout;
props.fit ??= imageConfig.experimentalObjectFit ?? 'cover';
props.position ??= imageConfig.experimentalObjectPosition ?? 'center';
}
const image = await getImage(props as UnresolvedImageTransform);
const additionalAttributes: HTMLAttributes<'img'> = {};
if (image.srcSet.values.length > 0) {
additionalAttributes.srcset = image.srcSet.attribute;
}
if (import.meta.env.DEV) {
additionalAttributes['data-image-component'] = 'true';
}
const { class: className, ...attributes } = { ...additionalAttributes, ...image.attributes };
---
{/* Applying class outside of the spread prevents it from applying unnecessary astro-* classes */}
<img src={image.src} {...attributes} class={className} />