/**
 * Based on https://github.com/dwengovzw/Learning-Object-Repository/blob/main/app/processors/image/inline_image_processor.js
 */

import DOMPurify from 'isomorphic-dompurify';
import {DwengoContentType} from "../content-type.js";
import {ProcessingError} from "../processing-error.js";
import {isValidHttpUrl} from "../../../../util/links";
import {StringProcessor} from "../string-processor";

class InlineImageProcessor extends StringProcessor {
    constructor(contentType: DwengoContentType = DwengoContentType.IMAGE_INLINE) {
        super(contentType);
    }

    override renderFn(imageUrl: string) {
        if (!isValidHttpUrl(imageUrl)) {
            throw new ProcessingError(`Image URL is invalid: ${imageUrl}`);
        }
        return DOMPurify.sanitize(`<img src="${imageUrl}" alt="">`);
    }
}

export default InlineImageProcessor;