/**
 * Authentication API
 */

import apiClient from './client';

export interface LoginCredentials {
  username: string;
  password: string;
}

import { UserRole } from '../types';

export interface MasqueradeStackEntry {
  user_id: number;
  username: string;
  role: UserRole;
  business_id?: number;
  business_subdomain?: string;
}

export interface LoginResponse {
  access: string;
  refresh: string;
  user: {
    id: number;
    username: string;
    email: string;
    name: string;
    role: UserRole;
    avatar_url?: string;
    email_verified?: boolean;
    is_staff: boolean;
    is_superuser: boolean;
    business?: number;
    business_name?: string;
    business_subdomain?: string;
  };
  masquerade_stack?: MasqueradeStackEntry[];
}

export interface User {
  id: number;
  username: string;
  email: string;
  name: string;
  role: UserRole;
  avatar_url?: string;
  email_verified?: boolean;
  is_staff: boolean;
  is_superuser: boolean;
  business?: number;
  business_name?: string;
  business_subdomain?: string;
}

/**
 * Login user
 */
export const login = async (credentials: LoginCredentials): Promise<LoginResponse> => {
  const response = await apiClient.post<LoginResponse>('/api/auth/login/', credentials);
  return response.data;
};

/**
 * Logout user
 */
export const logout = async (): Promise<void> => {
  await apiClient.post('/api/auth/logout/');
};

/**
 * Get current user
 */
export const getCurrentUser = async (): Promise<User> => {
  const response = await apiClient.get<User>('/api/auth/me/');
  return response.data;
};

/**
 * Refresh access token
 */
export const refreshToken = async (refresh: string): Promise<{ access: string }> => {
  const response = await apiClient.post('/api/auth/refresh/', { refresh });
  return response.data;
};

/**
 * Masquerade as another user (hijack)
 */
export const masquerade = async (
  user_pk: number,
  hijack_history?: MasqueradeStackEntry[]
): Promise<LoginResponse> => {
  const response = await apiClient.post<LoginResponse>(
    '/api/auth/hijack/acquire/',
    { user_pk, hijack_history }
  );
  return response.data;
};

/**
 * Stop masquerading and return to previous user
 */
export const stopMasquerade = async (
  masquerade_stack: MasqueradeStackEntry[]
): Promise<LoginResponse> => {
  const response = await apiClient.post<LoginResponse>(
    '/api/auth/hijack/release/',
    { masquerade_stack }
  );
  return response.data;
};