// ReSharper disable once UnusedMember.Global
public IEnumerable <LessonResponse> Post(LessonGetAllRequest request)
{
Guard.AgainstEmpty(request.Provider);
Guard.AgainstEmpty(request.ProviderId);
var existingUser = UserHelpers.GetExistingUser(request, UserRepository);
Guard.IsTrue(eu => eu.IsNew == false, existingUser);
var allLessons = LessonRepository.GetAllNonDeleted();
var allAuthors = allLessons.DistinctBy(al => new { al.Provider, al.ProviderId }).Select(au => UserRepository.GetUserByProviderAndProviderId(au.Provider, au.ProviderId));
return(allLessons
.Select(lesson => new { Grade = existingUser.IsStudent ? GradeRepository.GetGrade(lesson.Id, request.Provider, request.ProviderId) : new GradeModel(), Lesson = lesson })
.Select(x => new LessonResponse // TODO: Use Automapper
{
Id = x.Lesson.Id,
BookTitle = x.Lesson.BookTitle,
BookAmazonUrl = x.Lesson.BookAmazonUrl,
TheHookYouTubeVideo = x.Lesson.TheHookYouTubeVideo,
TheTwoVocabularyWordsYouTubeVideo = x.Lesson.TheTwoVocabularyWordsYouTubeVideo,
EnunciationVideo1 = x.Lesson.EnunciationVideo1,
EnunciationVideo2 = x.Lesson.EnunciationVideo2,
MainIdea = x.Lesson.MainIdea,
SupportingIdea = x.Lesson.SupportingIdea,
StoryDetails = x.Lesson.StoryDetails,
StoryQuestions = x.Lesson.StoryQuestions,
ImportantSentencesForWordScramble = x.Lesson.ImportantSentencesForWordScramble,
LessonAuthor = allAuthors.Single(aa => aa.Provider == x.Lesson.Provider && aa.ProviderId == x.Lesson.ProviderId),
NumberOfEnrolledStudents = x.Lesson.NumberOfEnrolledStudents,
GradeResponse = x.Grade == null ? new GradeResponse() : new GradeResponse {
IsGraded = true, Grade = x.Grade.Grade, Comments = x.Grade.Comments
}
}));
}