/* eslint-disable max-classes-per-file */
/**
 * Copyright (c) 2017-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

const React = require('react');

// eslint-disable-next-line import/no-unresolved
const CompLibrary = require('../../core/CompLibrary');

const { GridBlock, Container } = CompLibrary; /* Used to read markdown */

const siteConfig = require(`${process.cwd()}/siteConfig`);

function docUrl(doc, language) {
  return `${siteConfig.baseUrl}${language ? `${language}/` : ''}${doc}`;
}

function imgUrl(img) {
  return `${siteConfig.baseUrl}img/${img}`;
}

const Button = ({ href, target, children }) => (
  <div className="pluginWrapper buttonWrapper">
    <a className="button hero" href={href} target={target}>
      {children}
    </a>
  </div>
);

Button.defaultProps = {
  target: '_self',
};

const SplashContainer = ({ children }) => (
  <div className="homeContainer">
    <div className="homeSplashFade">
      <div className="wrapper homeWrapper">{children}</div>
    </div>
  </div>
);

const ProjectTitle = () => (
  <React.Fragment>
    <div
      style={{
        display: 'flex',
        justifyContent: 'center',
        alignItems: 'center',
      }}
    >
      <img
        src="img/atom-icon-pure-purple.png"
        className="homeLogo"
        alt="Unity Atoms logo"
        width={82}
        height={82}
        style={{ marginRight: '0.5rem' }}
      />
      <h1 className="projectTitle">{siteConfig.title}</h1>
    </div>

    <h2 style={{ marginTop: '0.5em' }}>
      Tiny modular pieces utilizing the power of Scriptable Objects
    </h2>
  </React.Fragment>
);

const PromoSection = ({ children }) => (
  <div className="section promoSection">
    <div className="promoRow">
      <div className="pluginRowBlock">{children}</div>
    </div>
  </div>
);

const HomeSplash = ({ language = '' }) => (
  <SplashContainer>
    <div className="inner">
      <ProjectTitle />
      <PromoSection>
        <Button href={docUrl('introduction/quick-start', language)}>
          Get Started
        </Button>
      </PromoSection>
    </div>
  </SplashContainer>
);

const Block = ({ id, background, className, children, layout }) => (
  <Container id={id} background={background} className={className}>
    <GridBlock align="center" contents={children} layout={layout} />
  </Container>
);

const FeaturesTop = () => (
  <Block layout="threeColumn" className="featureBlock">
    {[
      {
        content: 'Avoid scripts and systems directly dependent on each other.',
        image: imgUrl('box.svg'),
        imageAlign: 'top',
        title: 'Modular',
      },
      {
        content:
          'Scriptable Objects makes it possible to make changes to your game at runtime.',
        image: imgUrl('pen.svg'),
        imageAlign: 'top',
        title: 'Editable',
      },
      {
        content: 'Modular code is easier to debug than tightly coupled code.',
        image: imgUrl('bug.svg'),
        imageAlign: 'top',
        title: 'Debuggable',
      },
    ]}
  </Block>
);

const Index = ({ language = '' }) => (
  <div className="homeMainWrapper">
    <HomeSplash language={language} />
    <Container background="light">
      <div style={{ paddingTop: '3rem', paddingBottom: '3rem' }}>
        <FeaturesTop />
      </div>
    </Container>
  </div>
);

module.exports = Index;