/*Copyright (C) 2019 Centro de Computacao Cientifica e Software Livre
Departamento de Informatica - Universidade Federal do Parana

This file is part of Plataforma Integrada MEC.

Plataforma Integrada MEC is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Plataforma Integrada MEC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with Plataforma Integrada MEC.  If not, see <http://www.gnu.org/licenses/>.*/

import React, { useState } from 'react';
import Button from '@material-ui/core/Button';
import CheckIcon from '@material-ui/icons/Check';
import AddIcon from '@material-ui/icons/Add';
import styled from 'styled-components';
import SignUpModal from './SignUpModal.js';

export default function FollowCollectionButton(props) {
	const [icon, setIcon] = useState(<AddIcon fontSize="large"/>);
	const [button_text, setButtonText] = useState("Seguir Coleção");
	const [variant, setVariant] = useState("outlined");
	const [sign_up_open, setSignUpOpen] = useState(false);

	const handleClick = () => {
		//aqui tem que ter:
		//se o usuário não está logado, abre a tela de criar conta

		//setSignUpOpen(true);

		//se o usuário já segue a coleção,deixa de seguir

		//setButtonText("Seguir Coleção");

		//se o usuário não segue a coleção, muda o visual por alguns instantes e depois mostra o "deixa de seguir"
		setVariant("contained");
		setButtonText("Seguindo");
		setIcon(<CheckIcon fontSize="large"/>)
	};

	return (
		<div>
			<FollowButton
				variant={variant}
				color="primary"
				startIcon={icon}
				size="large"
				onClick={() => handleClick()}
			>
				<ButtonText>{button_text}</ButtonText>
			</FollowButton>
			<SignUpModal open={sign_up_open} handleClose={() => setSignUpOpen(false)} />
		</div>
	);
}

const Title=styled.h1`
	font-size: 3em;
	color: rgb(102, 102, 102);
	float: left;
`
const ButtonText=styled.span`
	font-weight: bolder;
	font-size: 1.2em;
`
const FollowButton=styled(Button)`
	padding-left: 10,
	padding-right: 10,
	width: 210,
`