feat: widgets and ai chat

apps/dashboard/src/lib/features/course/utils/content.ts

@@ -7,6 +7,12 @@ import TableOfContentsIcon from '@lucide/svelte/icons/table-of-contents';
 export type ContentItem = CourseContentItem;
 export type ContentSection = CourseContentSection;
 
+export type MentionableContent = {
+  id: string;
+  title: string;
+  type: CourseContentType;
+};
+
 export const CONTENT_DEFINITIONS = {
   [CourseContentType.Section]: {
     label: 'Section',
@@ -28,7 +34,7 @@ const EMPTY_CONTENT = {
   items: [] as ContentItem[]
 };
 
-export function getContentRoute(courseId: string, item: ContentItem) {
+export function getContentRoute(courseId: string, item: { id: string; type: string }) {
   if (item.type === CourseContentType.Lesson) {
     return `/courses/${courseId}/lessons/${item.id}`;
   }
@@ -37,6 +43,10 @@ export function getContentRoute(courseId: string, item: ContentItem) {
     return `/courses/${courseId}/exercises/${item.id}`;
   }
 
+  if (item.type === CourseContentType.Section) {
+    return `/courses/${courseId}/lessons#section-${item.id}`;
+  }
+
   return '';
 }
 
@@ -53,3 +63,33 @@ export function getOrderedNavigableContent(course: Course | null): ContentItem[]
     NAVIGABLE_CONTENT_TYPES.includes(item.type as (typeof NAVIGABLE_CONTENT_TYPES)[number])
   );
 }
+
+/**
+ * Flat list of mentionable content for the AI chat @ menu.
+ * Includes sections (when grouped) interleaved with their lessons/exercises in display order.
+ */
+export function getMentionableContent(course: Course | null): MentionableContent[] {
+  const content = getCourseContent(course);
+
+  if (!content.grouped) {
+    return content.items
+      .filter((item) => NAVIGABLE_CONTENT_TYPES.includes(item.type as (typeof NAVIGABLE_CONTENT_TYPES)[number]))
+      .map((item) => ({ id: item.id, title: item.title, type: item.type as CourseContentType }));
+  }
+
+  const result: MentionableContent[] = [];
+
+  for (const section of content.sections) {
+    if (section.id !== 'ungrouped' && section.title) {
+      result.push({ id: section.id, title: section.title, type: CourseContentType.Section });
+    }
+
+    for (const item of section.items) {
+      if (NAVIGABLE_CONTENT_TYPES.includes(item.type as (typeof NAVIGABLE_CONTENT_TYPES)[number])) {
+        result.push({ id: item.id, title: item.title, type: item.type as CourseContentType });
+      }
+    }
+  }
+
+  return result;
+}