export interface Metadata {
  attempt_id: string;
  test_id: string;
  type: string;
  total_possible_score: number;
  deduction?: string;
  num_questions: number;
  name: string;
  start_time: string; // keep ISO string for consistency
  time_limit_minutes?: number;
}

export type Question = {
  question_id: string;
  question: string;
  options: string[];
  type: "Single" | "Multiple";
};

export interface Test {
  metadata: Metadata;
  questions: Question[];
}

export type Answer = number | null;
export type AnswersMap = Record<string, Answer>;

export interface ExamResult {
  user_id: string;
  test_id: string;
  subject_id: string;
  topic_id: string;
  test_type: string;
  attempt_id: string;
  start_time: string;
  end_time: string;
  user_questions: Question[];
  user_answers: (number | null)[];
  correct_answers: number[];
  correct_answers_count: number;
  wrong_answers_count: number;
  skipped_questions_count: number;
}