private async Task HandleLessonAchievements(UserLesson userLesson)
{
int userId = userLesson.UserId;
List <Achievement> achievementsForUser = await achievementService.GetAchievementsForUser(userId);
List <Lesson> lessonsForUser = await courseRepo.GetCompletedLessonsForUserDistinct(userId);
// Handling LESSON achievement
Achievement achievementForLessonCount = await achievementService.GetAchievementForLessonCount(lessonsForUser.Count);
if (achievementForLessonCount != null && !achievementsForUser.Contains(achievementForLessonCount))
{
await achievementService.InsertUserAchievement(userId, achievementForLessonCount.AchievementId);
}
// Handling CHAPTER achievement
Lesson lesson = await courseRepo.GetLesson(userLesson.LessonId);
Chapter chapter = await courseRepo.GetChapter(lesson.ChapterId);
bool didUserCompleteTheChapter = await DidUserCompleteTheChapter(userId, chapter);
if (didUserCompleteTheChapter)
{
await HandleChapterAchievement(userId, achievementsForUser, chapter);
}
// Handling COURSE achievement
Course course = await courseRepo.GetCourse(chapter.CourseId);
bool didUserCompleteTheCourse = await DidUserCompleteTheCourse(userId, course);
if (didUserCompleteTheChapter && didUserCompleteTheCourse)
{
await HandleCourseAchievement(userId, achievementsForUser, course);
}
}