feat: enhance API and middleware functionality: add public API routes, implement program and course member checks, and improve rate limiting for invite acceptance. Update OpenAPI spec generation to focus on public API endpoints and add new middleware for automation key scopes. Include new documentation for lesson AI features and public API tests.

apps/api/src/services/lesson-language.ts

@@ -2,6 +2,7 @@ import { AppError, ErrorCodes } from '@api/utils/errors';
 import { sanitizeOptionalHtml } from '@api/utils/sanitize-html';
 import type { TLessonLanguage, TLocale, TNewLessonLanguage } from '@db/types';
 import {
+  deleteLessonLanguage,
   getLessonLanguageByLessonIdAndLocale,
   getLessonLanguagesByLessonId,
   updateLessonLanguage,
@@ -9,6 +10,7 @@ import {
 } from '@cio/db/queries/lesson/language';
 
 import { getLessonById } from '@cio/db/queries/lesson/lesson';
+import { touchCourseUpdatedAt } from '@cio/db/queries/course';
 
 /**
  * Gets all language translations for a lesson
@@ -70,6 +72,10 @@ export async function upsertLessonLanguageService(
       lessonId
     });
 
+    if (lesson.courseId) {
+      await touchCourseUpdatedAt(lesson.courseId);
+    }
+
     return language;
   } catch (error) {
     if (error instanceof AppError) {
@@ -111,6 +117,11 @@ export async function updateLessonLanguageService(
       ...data,
       content: sanitizeOptionalHtml(data.content)
     });
+
+    if (lesson.courseId) {
+      await touchCourseUpdatedAt(lesson.courseId);
+    }
+
     return language;
   } catch (error) {
     if (error instanceof AppError) {
@@ -123,3 +134,38 @@ export async function updateLessonLanguageService(
     );
   }
 }
+
+export async function deleteLessonLanguageService(lessonId: string, locale: TLocale): Promise<TLessonLanguage> {
+  try {
+    const lesson = await getLessonById(lessonId);
+    if (!lesson) {
+      throw new AppError('Lesson not found', ErrorCodes.LESSON_NOT_FOUND, 404);
+    }
+
+    const existing = await getLessonLanguageByLessonIdAndLocale(lessonId, locale);
+    if (!existing) {
+      throw new AppError('Lesson language not found', ErrorCodes.LESSON_LANGUAGE_NOT_FOUND, 404);
+    }
+
+    const deleted = await deleteLessonLanguage(lessonId, locale);
+    if (!deleted) {
+      throw new AppError('Lesson language not found', ErrorCodes.LESSON_LANGUAGE_NOT_FOUND, 404);
+    }
+
+    if (lesson.courseId) {
+      await touchCourseUpdatedAt(lesson.courseId);
+    }
+
+    return deleted;
+  } catch (error) {
+    if (error instanceof AppError) {
+      throw error;
+    }
+
+    throw new AppError(
+      error instanceof Error ? error.message : 'Failed to delete lesson language',
+      ErrorCodes.LESSON_LANGUAGE_DELETE_FAILED,
+      500
+    );
+  }
+}