fix: remove monorepo

app/utils/markdown.ts

@@ -0,0 +1,116 @@
+import rehypeRaw from 'rehype-raw';
+import remarkGfm from 'remark-gfm';
+import type { PluggableList, Plugin } from 'unified';
+import rehypeSanitize, { defaultSchema, type Options as RehypeSanitizeOptions } from 'rehype-sanitize';
+import { SKIP, visit } from 'unist-util-visit';
+import type { UnistNode, UnistParent } from 'node_modules/unist-util-visit/lib';
+
+export const allowedHTMLElements = [
+  'a',
+  'b',
+  'blockquote',
+  'br',
+  'code',
+  'dd',
+  'del',
+  'details',
+  'div',
+  'dl',
+  'dt',
+  'em',
+  'h1',
+  'h2',
+  'h3',
+  'h4',
+  'h5',
+  'h6',
+  'hr',
+  'i',
+  'ins',
+  'kbd',
+  'li',
+  'ol',
+  'p',
+  'pre',
+  'q',
+  'rp',
+  'rt',
+  'ruby',
+  's',
+  'samp',
+  'source',
+  'span',
+  'strike',
+  'strong',
+  'sub',
+  'summary',
+  'sup',
+  'table',
+  'tbody',
+  'td',
+  'tfoot',
+  'th',
+  'thead',
+  'tr',
+  'ul',
+  'var',
+];
+
+const rehypeSanitizeOptions: RehypeSanitizeOptions = {
+  ...defaultSchema,
+  tagNames: allowedHTMLElements,
+  attributes: {
+    ...defaultSchema.attributes,
+    div: [...(defaultSchema.attributes?.div ?? []), 'data*', ['className', '__boltArtifact__']],
+  },
+  strip: [],
+};
+
+export function remarkPlugins(limitedMarkdown: boolean) {
+  const plugins: PluggableList = [remarkGfm];
+
+  if (limitedMarkdown) {
+    plugins.unshift(limitedMarkdownPlugin);
+  }
+
+  return plugins;
+}
+
+export function rehypePlugins(html: boolean) {
+  const plugins: PluggableList = [];
+
+  if (html) {
+    plugins.push(rehypeRaw, [rehypeSanitize, rehypeSanitizeOptions]);
+  }
+
+  return plugins;
+}
+
+const limitedMarkdownPlugin: Plugin = () => {
+  return (tree, file) => {
+    const contents = file.toString();
+
+    visit(tree, (node: UnistNode, index, parent: UnistParent) => {
+      if (
+        index == null ||
+        ['paragraph', 'text', 'inlineCode', 'code', 'strong', 'emphasis'].includes(node.type) ||
+        !node.position
+      ) {
+        return true;
+      }
+
+      let value = contents.slice(node.position.start.offset, node.position.end.offset);
+
+      if (node.type === 'heading') {
+        value = `\n${value}`;
+      }
+
+      parent.children[index] = {
+        type: 'text',
+        value,
+      } as any;
+
+      return [SKIP, index] as const;
+    });
+  };
+};