import React, { useState, useEffect } from 'react';
import PropTypes from 'prop-types';

import ReactRouterPropTypes from 'react-router-prop-types';
import { withRouter } from 'react-router-dom';

import { UserType } from './Types';
import Icon from './Icon';
import Button from './Button';
import Input from './Input';
import { useFormState } from 'react-use-form-state';

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

import './Login.css';

function Login({ visitor, history, location, onAuth }) {

    useEffect(() => {
        if (visitor.hash) {
            const {retpath } = location.state;
            console.log(retpath);
            history.push(retpath || '/');
        }
    }, [history, location.state, visitor]);

    const [formState, { text, password }] = useFormState();

    let onSubmit = (event) => {
        event.preventDefault();
        me(formState.values.username, formState.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>
                </div>
                <p>Already registered?</p>
                <form onSubmit={onSubmit}>
                    <Input name="username"
                        placeholder="Username..."
                        value={formState.values.username} {...text('username')} /><br />
                    <Input name="password"
                        placeholder="Password..."
                        value={formState.values.password} {...password('password')} /><br />
                    <Button onClick={onSubmit}>OK</Button>
                </form>
            </div>
        </div>
    );
}

export default withRouter(Login);

Login.propTypes = {
    visitor: UserType,
    history: ReactRouterPropTypes.history.isRequired,
    location: ReactRouterPropTypes.location,
    onAuth: PropTypes.func
};

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'
};