// Copyright (c) 2019 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

import React, {PureComponent} from 'react';
import PropTypes from 'prop-types';
import styled from 'styled-components';
import StaggeredScrollAnimation from './staggered-scroll-animation';

import {media} from '../../styles';

export const SectionContainer = styled.div`
  color: ${props => (props.isDark ? 'white' : 'black')};
  background: ${props =>
    props.isDark
      ? props.theme.darkBackgroundColor
      : props.background
        ? /^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/.test(props.background)
          ? props.background
          : `url(${props.background})`
        : 'white'};
  padding: ${props => props.theme.margins.huge};
  margin-bottom: ${props => (props.marginBottom ? props.marginBottom : props.theme.margins.large)};
  background-size: cover;

  ${media.portable`
    padding: ${props => props.theme.margins.large}
  `} ${media.palm`
    padding: ${props => props.theme.margins.medium}
  `};
`;

export const SectionHeader = styled.div`
  text-align: center;
  margin-bottom: ${props => props.theme.margins.large};
  display: flex;
  flex-direction: column;
  align-items: center;
`;

export const SectionTitle = styled.div`
  font-size: 36px;
  font-weight: 500;
  ${media.palm`
    font-size: 24px;
  `};
`;

export const SectionDescription = styled.div`
  font-size: 20px;
  font-weight: 400;
  max-width: 600px;
  ${media.palm`
    font-size: 16px;
  `};
`;

class Section extends PureComponent {
  static propTypes = {
    title: PropTypes.string.isRequired,
    description: PropTypes.string.isRequired,
    isDark: PropTypes.bool,
    background: PropTypes.string,
    children: PropTypes.node.isRequired
  };

  static defaultProps = {
    isDark: false
  };

  render() {
    const {marginBottom, title, description, isDark, background, children} = this.props;
    return (
      <SectionContainer marginBottom={marginBottom} isDark={isDark} background={background}>
        <StaggeredScrollAnimation Container={SectionHeader}>
          <SectionTitle>{title}</SectionTitle>
          <SectionDescription>{description}</SectionDescription>
        </StaggeredScrollAnimation>
        {children}
      </SectionContainer>
    );
  }
}

export default Section;
