// @flow
import * as PAGES from 'constants/pages';
import * as ICONS from 'constants/icons';
import * as CS from 'constants/claim_search';
import { SIMPLE_SITE } from 'config';
import React from 'react';
import ChannelsFollowingDiscoverPage from 'page/channelsFollowingDiscover';
import LivestreamSection from 'page/discover/livestreamSection';
import ClaimListDiscover from 'component/claimListDiscover';
import Page from 'component/page';
import Button from 'component/button';
import Icon from 'component/common/icon';
import { splitBySeparator } from 'util/lbryURI';
import { getLivestreamUris } from 'util/livestream';
import ScheduledStreams from 'component/scheduledStreams';

type Props = {
  subscribedChannels: Array<Subscription>,
  tileLayout: boolean,
  activeLivestreams: ?LivestreamInfo,
  doFetchActiveLivestreams: () => void,
  fetchingActiveLivestreams: boolean,
  hideScheduledLivestreams: boolean,
};

function ChannelsFollowingPage(props: Props) {
  const {
    subscribedChannels,
    tileLayout,
    activeLivestreams,
    doFetchActiveLivestreams,
    fetchingActiveLivestreams,
    hideScheduledLivestreams,
  } = props;

  const hasSubscribedChannels = subscribedChannels.length > 0;
  const channelIds = subscribedChannels.map((sub) => splitBySeparator(sub.uri)[1]);

  React.useEffect(() => {
    doFetchActiveLivestreams();
  }, []);

  return !hasSubscribedChannels ? (
    <ChannelsFollowingDiscoverPage />
  ) : (
    <Page noFooter fullWidthPage={tileLayout}>
      {!fetchingActiveLivestreams && (
        <>
          {!hideScheduledLivestreams && (
            <ScheduledStreams
              channelIds={channelIds}
              tileLayout={tileLayout}
              liveUris={getLivestreamUris(activeLivestreams, channelIds)}
              limitClaimsPerChannel={2}
            />
          )}

          <ClaimListDiscover
            prefixUris={getLivestreamUris(activeLivestreams, channelIds)}
            hideAdvancedFilter={SIMPLE_SITE}
            streamType={SIMPLE_SITE ? CS.CONTENT_ALL : undefined}
            tileLayout={tileLayout}
            headerLabel={
              <span>
                <Icon icon={ICONS.SUBSCRIBE} size={10} />
                {__('Following')}
              </span>
            }
            defaultOrderBy={CS.ORDER_BY_NEW}
            channelIds={channelIds}
            meta={
              <Button
                icon={ICONS.SEARCH}
                button="secondary"
                label={__('Discover Channels')}
                navigate={`/$/${PAGES.CHANNELS_FOLLOWING_DISCOVER}`}
              />
            }
            subSection={
              <LivestreamSection
                tileLayout={tileLayout}
                channelIds={channelIds}
                activeLivestreams={activeLivestreams}
                doFetchActiveLivestreams={doFetchActiveLivestreams}
              />
            }
            hasSource
          />
        </>
      )}
    </Page>
  );
}

export default ChannelsFollowingPage;
