import { useNavigate } from 'react-router-dom';
import { useApi } from './useApi';
import { useLoader } from '../context/loaders/useLoader';
import { useToast } from '../context/toasts/useToast';
import { useApp } from '../context/AppContext';
import { User } from '../types';

export function useAuth() {
  const navigate = useNavigate();
  const { login } = useApp();
  const { login: loginApi, register: registerApi } = useApi();
  const { withLoader } = useLoader();
  const { addNotification } = useToast();

  const handleLogin = async (email: string, password: string) => {
    try {
      const response = await withLoader(() => loginApi(email, password), 'Logging in...');

      // Convert UserData to User type
      const user: User = {
        id: parseInt(response.user.id),
        username: response.user.username,
        email: response.user.email,
      };

      // debugger
      // Store in localStorage first
      localStorage.setItem('token', response.access_token);
      localStorage.setItem('user', JSON.stringify(user));

      // Then update context
      login(user, response.access_token);

      // Show success toast
      addNotification({
        type: 'success',
        title: 'Login Successful',
        message: `Welcome back, ${user.username}!`,
        duration: 3000,
      });

      // Navigate to boards
      navigate('/boards');

      return user;
    } catch (err) {
      const errorMessage = err instanceof Error ? err.message : 'Login failed. Please try again.';

      // Show error toast
      addNotification({
        type: 'error',
        title: 'Login Failed',
        message: errorMessage,
        duration: 5000,
      });

      throw err;
    }
  };

  const handleRegister = async (userData: {
    email: string;
    password: string;
    username: string;
    first_name?: string;
    last_name?: string;
  }) => {
    try {
      const response = await withLoader(() => registerApi(userData), 'Creating account...');

      // Convert UserData to User type
      const user: User = {
        id: parseInt(response.user.id),
        username: response.user.username,
        email: response.user.email,
      };

      // Store in localStorage first
      // debugger
      localStorage.setItem('token', response.access_token);
      localStorage.setItem('user', JSON.stringify(user));

      // Then update context
      login(user, response.access_token);

      // Show success toast
      addNotification({
        type: 'success',
        title: 'Account Created',
        message: `Welcome, ${user.username}!`,
        duration: 3000,
      });

      // Navigate to boards
      navigate('/boards');

      return user;
    } catch (err) {
      const errorMessage =
        err instanceof Error ? err.message : 'Registration failed. Please try again.';

      // Show error toast
      addNotification({
        type: 'error',
        title: 'Registration Failed',
        message: errorMessage,
        duration: 5000,
      });

      throw err;
    }
  };

  const handleLogout = () => {
    // Show logout toast
    addNotification({
      type: 'success',
      title: 'Logged Out',
      message: 'You have been logged out successfully.',
      duration: 3000,
    });

    // Clear local storage
    localStorage.removeItem('token');
    localStorage.removeItem('user');

    // Navigate to login
    navigate('/login');

    // Trigger page refresh to clear app context
    window.location.reload();
  };

  return {
    login: handleLogin,
    register: handleRegister,
    logout: handleLogout,
  };
}