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import React, { useState, useEffect } from 'react';
import { Link, Typography } from '@material-ui/core';
import axios from 'axios';
import ReactMarkdown from 'react-markdown';
import emoji from 'remark-gemoji';
import CodeBlock from './CodeBlock';
import InlineCode from './InlineCode';
import Heading from './Heading';
import Image from './Image';
interface PropTypes {
source?: string;
url?: string;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
context?: Record<string, any>;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
plugins?: any[]
}
const resolveUrls = (line: string, baseUrl: string): string => line.replace(
/src="(?!http)(.*)"[\s>]/,
(match, url) => `src="${baseUrl}/${url}?sanitize=true"`,
).replace(
/\[(.*\]?.*)\]\((?!http)(.+?)\)/g,
(match, text, url) => `[${text}](${baseUrl}/${url})`,
);
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const WrappedInlineCode = (context: Record<string, any>): React.FC => ({ children }) => {
if (typeof children === 'string' && children?.startsWith('$')) {
const symbol = children.slice(1);
return context[symbol] || null;
}
return <InlineCode>{children}</InlineCode>;
};
const Markdown: React.FC<PropTypes> = ({
children,
url,
source,
context = {},
plugins = [],
}) => {
const [markdown, setMarkdown] = useState<string>(source || '');
useEffect(() => {
if (url) axios.get(url).then(response => setMarkdown(response.data));
}, [url]);
useEffect(() => {
if (source) setMarkdown(source);
}, [source]);
useEffect(() => {
if (children && typeof children === 'string') setMarkdown(children);
}, [children]);
const baseUrl = url?.slice(0, url.lastIndexOf('/')) || '';
const sanitized = resolveUrls(markdown, baseUrl);
const renderers = {
heading: Heading,
code: CodeBlock,
link: Link,
image: Image,
inlineCode: WrappedInlineCode(context),
};
return (
<Typography>
<ReactMarkdown
source={sanitized}
renderers={renderers}
plugins={[emoji, ...plugins]}
allowDangerousHtml
/>
</Typography>
);
};
export default Markdown;
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