import axios from 'axios';

const api = axios.create({
  baseURL: '/api',
  headers: {
    'Content-Type': 'application/json',
  },
});

export interface SiteConfig {
  siteTitle: string;
  subtitle: string;
  channels: { name: string; url: string }[];
  shortText: string;
  quizParticipationPoints: number;
  quizCorrectAnswerPoints: number;
}

export interface RegisterResponse {
  userId: number;
  trackingCode: string;
}

export interface LoginResponse {
  userId: number;
  fullName: string;
  contact: string;
  isQuizCompleted: boolean;
  khatmSelections: number[];
}

export interface Question {
  id: number;
  questionText: string;
  options: string[];
}

export interface QuizSubmitResponse {
  participationPoints: number;
  correctCount: number;
  totalQuizPoints: number;
  totalScore: number;
}

export interface UserQuizResponse {
  questions: UserQuestion[];
  participationPoints: number;
  correctCount: number;
  totalQuizPoints: number;
}

export interface UserQuestion {
  id: number;
  questionText: string;
  options: string[];
  selectedOption: number;
  isCorrect: boolean;
}

export interface KhatmItem {
  id: number;
  title: string;
  url?: string;
  points: number;
}

export interface KhatmSaveResponse {
  success: boolean;
  totalScore: number;
}

export interface UserScore {
  totalScore: number;
}

export interface AdminReportItem {
  userId: number;
  fullName: string;
  contact: string;
  trackingCode: string;
  hasTakenQuiz: boolean;
  participationPoints: number;
  correctCount: number;
  totalQuizPoints: number;
  khatmTitles: string;
  totalScore: number;
}

// Config
export const getConfig = () => api.get<SiteConfig>('/config').then(r => r.data);

// User
export const registerUser = (fullName: string, contact: string) =>
  api.post<RegisterResponse>('/user/register', { fullName, contact }).then(r => r.data);

export const loginUser = (trackingCode: string) =>
  api.post<LoginResponse>('/user/login', { trackingCode }).then(r => r.data);

export const getUserScore = (userId: number) =>
  api.get<UserScore>(`/user/${userId}/score`).then(r => r.data);

// Quiz
export const getQuestions = () =>
  api.get<Question[]>('/quiz/questions').then(r => r.data);

export const submitQuiz = (userId: number, answers: { questionId: number; selectedOption: number }[]) =>
  api.post<QuizSubmitResponse>('/quiz/submit', { userId, answers }).then(r => r.data);

export const getUserQuiz = (userId: number) =>
  api.get<UserQuizResponse>(`/quiz/user/${userId}`).then(r => r.data);

// Khatm
export const getKhatmItems = () =>
  api.get<KhatmItem[]>('/khatm/items').then(r => r.data);

export const saveKhatmSelections = (userId: number, selections: { khatmItemId: number; isSelected: boolean }[]) =>
  api.post<KhatmSaveResponse>('/khatm/save', { userId, selections }).then(r => r.data);

// Admin
export const getAdminReport = (password: string) =>
  api.get<AdminReportItem[]>('/admin/report', { params: { password } }).then(r => r.data);

export default api;