import { useEffect } from 'react';
import { useLocation, useNavigate } from 'react-router-dom';

import Icon from './Icon';
import Button from './Button';
import { useForm } from 'react-hook-form';

import { me, facebookLink, vkLink, appleLink } from '../api';

import { useVisitor } from './VisitorContext';

/**
 * @typedef {object} LoginProps
 * @property {Function} onAuth
 */

/**
 * Login page
 * 
 * @param {LoginProps} props
 */
function Login({ onAuth }) {
    const location = useLocation();
    const navigate = useNavigate();
    const [visitor] = useVisitor();
    useEffect(() => {
        if (visitor.hash) {
            const {retpath } = location.state || '/';
            console.log(retpath);
            navigate(retpath);
        }
    }, [navigate, location.state, visitor]);

    const { register, handleSubmit } = useForm();

    /** @type { import('react-hook-form').SubmitHandler<import('react-hook-form').FieldValues> } */
    let onSubmit = (values) => {
        me(values.username, values.password)
            .then(response => {
                onAuth(response);
            }
            ).catch(ex => {
                console.log(ex);
            });
    };
    return (
        <div className="msg-cont">
            <div className="dialoglogin">
                <p>Please, introduce yourself:</p>
                <div style={socialButtonsStyle}>
                    <a href={facebookLink()} style={facebookButtonStyle}>
                        <Icon name="ei-sc-facebook" size="s" noFill={true} />Log in
              </a>
                    <a href={vkLink()} style={vkButtonStyle}>
                        <Icon name="ei-sc-vk" size="s" noFill={true} />
                        Log in
             </a>
             <a href={appleLink()}><img src="https://appleid.cdn-apple.com/appleid/button" /></a>
                </div>
                <p>Already registered?</p>
                <form onSubmit={handleSubmit(onSubmit)}>
                    <input placeholder="Username..." {...register('username')} /><br />
                    <input placeholder="Password..." type="password" {...register('password')} /><br />
                    <Button onClick={handleSubmit(onSubmit)}>OK</Button>
                </form>
            </div>
        </div>
    );
}

export default Login;

const socialButtonsStyle = {
    display: 'flex',
    justifyContent: 'space-evenly',
    padding: '4px'
};

const facebookButtonStyle = {
    color: '#fff',
    padding: '2px 14px',
    background: '#3b5998'
};

const vkButtonStyle = {
    color: '#fff',
    padding: '2px 14px',
    background: '#4c75a3'
};