feat(import/markdown): start parsing wikilinks

apps/server/src/services/import/markdown.spec.ts

@@ -281,4 +281,10 @@ $$`;
         expect(markdownService.renderToHtml(input, "Title")).toStrictEqual(expected);
     });
 
+    it("supports wikilink with root-relative path", () => {
+        const input = `oh no my banana I bought on [[journal/monday]] has gone off! I’m taking it back to the [[other/shop]] for a refund`;
+        const expected = `<p>oh no my banana I bought on <a class="reference-link" href="journal/monday">journal/monday</a> has gone off! I’m taking it back to the <a class="reference-link" href="other/shop">other/shop</a> for a refund</p>`;
+        expect(markdownService.renderToHtml(input, "Title")).toStrictEqual(expected);
+    });
+
 });

apps/server/src/services/import/markdown.ts

@@ -23,7 +23,9 @@ class CustomMarkdownRenderer extends Renderer {
     }
 
     override paragraph(data: Tokens.Paragraph): string {
-        return super.paragraph(data).trimEnd();
+        let text = super.paragraph(data).trimEnd();
+        text = processWikiLinks(text);
+        return text;
     }
 
     override code({ text, lang }: Tokens.Code): string {
@@ -212,6 +214,11 @@ function restoreFromMap(text: string, map: Map<string, string>): string {
     return text.replace(new RegExp(pattern, 'g'), match => map.get(match) ?? match);
 }
 
+function processWikiLinks(paragraph: string) {
+    paragraph = paragraph.replaceAll(/\[\[([^\[\]]+)\]\]/g, `<a class="reference-link" href="$1">$1</a>`);
+    return paragraph;
+}
+
 const renderer = new CustomMarkdownRenderer({ async: false });
 
 export default {