// @flow
import * as ICONS from 'constants/icons';
import * as PAGES from 'constants/pages';
import { SITE_NAME, SIMPLE_SITE } from 'config';
import classnames from 'classnames';
import React from 'react';
import Page from 'component/page';
import Button from 'component/button';
import ClaimTilesDiscover from 'component/claimTilesDiscover';
import Icon from 'component/common/icon';

type Props = {
  authenticated: boolean,
  followedTags: Array<Tag>,
  subscribedChannels: Array<Subscription>,
  showNsfw: boolean,
  homepageData: any,
};

function HomePage(props: Props) {
  const { followedTags, subscribedChannels, authenticated, showNsfw, homepageData } = props;
  const showPersonalizedChannels = (authenticated || !IS_WEB) && subscribedChannels && subscribedChannels.length > 0;
  const showPersonalizedTags = (authenticated || !IS_WEB) && followedTags && followedTags.length > 0;
  const showIndividualTags = showPersonalizedTags && followedTags.length < 5;
  const { default: getHomepage } = homepageData;

  const rowData: Array<RowDataItem> = getHomepage(
    authenticated,
    showPersonalizedChannels,
    showPersonalizedTags,
    subscribedChannels,
    followedTags,
    showIndividualTags,
    showNsfw
  );

  return (
    <Page fullWidthPage>
      {!SIMPLE_SITE && (authenticated || !IS_WEB) && !subscribedChannels.length && (
        <div className="notice-message">
          <h1 className="section__title">
            {__("%SITE_NAME% is more fun if you're following channels", { SITE_NAME })}
          </h1>
          <p className="section__actions">
            <Button
              button="primary"
              navigate={`/$/${PAGES.CHANNELS_FOLLOWING_DISCOVER}`}
              label={__('Find new channels to follow')}
            />
          </p>
        </div>
      )}
      {rowData.map(({ title, route, link, icon, help, options = {} }, index) => (
        <div key={title} className="claim-grid__wrapper">
          {index === 0 ? (
            <div className="section__header--actions">
              <span
                className={classnames('claim-grid__title', {
                  'claim-grid__title--first': index === 0,
                })}
              >
                {title}
              </span>
            </div>
          ) : (
            <h1 className="claim-grid__header">
              <Button navigate={route || link} button="link">
                {icon && <Icon className="claim-grid__header-icon" sectionIcon icon={icon} size={20} />}
                <span className="claim-grid__title">{__(title)}</span>
                {help}
              </Button>
            </h1>
          )}

          <ClaimTilesDiscover {...options} />
          {link && (
            <Button
              className="claim-grid__title--secondary"
              button="link"
              navigate={route || link}
              iconRight={ICONS.ARROW_RIGHT}
              label={__('View More')}
            />
          )}
        </div>
      ))}
    </Page>
  );
}

export default HomePage;