package domain import "time" type QuestionType string const ( QuestionTypeMultipleChoice QuestionType = "multiple_choice" QuestionTypeTrueFalse QuestionType = "true_false" QuestionTypeShortAnswer QuestionType = "short_answer" ) type SubmitAssessmentReq struct { Answers []UserAnswer `json:"answers" validate:"required,min=1"` } type AssessmentQuestion struct { ID int64 Title string Description string QuestionType string DifficultyLevel string Options []AssessmentOption } type AssessmentOption struct { ID int64 OptionText string IsCorrect bool } type UserAnswer struct { QuestionID int64 SelectedOptionID int64 ShortAnswer string IsCorrect bool } type AssessmentAttempt struct { ID int64 UserID int64 TotalQuestions int CorrectAnswers int ScorePercentage float64 KnowledgeLevel string CompletedAt time.Time }