// src/types.ts

export type QuestionType =
  | "multiple-choice"
  | "multiple-select"
  | "short-answer"
  | "translation"
  | "math-input"
  | "essay"
  | "match"
  | "order";

export interface Choice {
  id: string;
  text: string;
}

export interface MatchItem {
  id: string;
  text: string;
}

export interface QuestionImage {
  src: string;
  alt?: string;
  caption?: string;
}

export interface QuestionAudio {
  src: string;
}

export interface QuestionCode {
  language: string;
  content: string;
}

export interface QuestionTable {
  headers: string[];
  rows: string[][];
}

export interface Question {
  id: string;
  type: QuestionType;
  category?: string;
  points?: number;
  prompt: string;
  explanation?: string;
  image?: QuestionImage;
  audio?: QuestionAudio;
  code?: QuestionCode;
  table?: QuestionTable;
  svg?: string;
  answer?: string | string[] | Record<string, string>;
  acceptedForms?: string[];
  caseSensitive?: boolean;
  ignorePunctuation?: boolean;
  ignoreAccents?: boolean;
  sourceLanguage?: string;
  targetLanguage?: string;
  choices?: Choice[];
  minWords?: number;
  rubric?: string[];
  left?: MatchItem[];
  right?: MatchItem[];
  items?: MatchItem[];
}

export interface Exam {
  id?: string;
  title: string;
  subtitle?: string;
  author?: string;
  timeLimitMinutes?: number | null;
  feedbackMode?: "end" | "immediate";
  passingScore?: number;
  categories?: string[];
  questions: Question[];
}

export type FeedbackMode = "immediate" | "end";

export interface ExamState {
  currentIdx: number;
  answers: Record<string, unknown>;
  flags: Record<string, boolean>;
  notes: string;
  revealed?: Record<string, boolean>;
  startedAt: number;
  completedAt?: number;
  feedbackMode: FeedbackMode;
  isRedo?: boolean;
}

export interface HistoryEntry {
  id: string;
  title: string;
  completedAt: number;
  elapsedMs: number;
  gradedCount: number;
  correctCount: number;
  totalPoints: number;
  scorePoints: number;
  passingScore: number;
  exam: Exam;
  state: ExamState;
}

export type GradeStatus = "correct" | "wrong" | "ungraded" | "unanswered";

export interface GradeResult {
  status: GradeStatus;
  correct: boolean;
  points: number;
}

export type ThemeMode = "light" | "dark";
export type FontSize = "small" | "medium" | "large";
export type FeedbackTweak = "auto" | "immediate" | "end";

export interface Tweaks {
  theme: ThemeMode;
  fontSize: FontSize;
  feedbackMode: FeedbackTweak;
}