// @flow
import React, { useContext } from 'react';
import classnames from 'classnames';
import { NavLink, withRouter } from 'react-router-dom';
import FileThumbnail from 'component/fileThumbnail';
import UriIndicator from 'component/uriIndicator';
import TruncatedText from 'component/common/truncated-text';
import DateTime from 'component/dateTime';
import ChannelThumbnail from 'component/channelThumbnail';
import FileViewCountInline from 'component/fileViewCountInline';
import SubscribeButton from 'component/subscribeButton';
import useGetThumbnail from 'effects/use-get-thumbnail';
import { formatLbryUrlForWeb, generateListSearchUrlParams } from 'util/url';
import { formatClaimPreviewTitle } from 'util/formatAriaLabel';
import { parseURI } from 'util/lbryURI';
import PreviewOverlayProperties from 'component/previewOverlayProperties';
import FileDownloadLink from 'component/fileDownloadLink';
import FileWatchLaterLink from 'component/fileWatchLaterLink';
import ClaimRepostAuthor from 'component/claimRepostAuthor';
import ClaimMenuList from 'component/claimMenuList';
import CollectionPreviewOverlay from 'component/collectionPreviewOverlay';
import ClaimListDiscoverContext from 'component/claimListDiscover/context';
import moment from 'moment';
// $FlowFixMe cannot resolve ...
import PlaceholderTx from 'static/img/placeholderTx.gif';

type Props = {
  uri: string,
  date?: any,
  claim: ?Claim,
  mediaDuration?: string,
  resolveUri: (string) => void,
  isResolvingUri: boolean,
  history: { push: (string) => void },
  thumbnail: string,
  title: string,
  placeholder: boolean,
  banState: { blacklisted?: boolean, filtered?: boolean, muted?: boolean, blocked?: boolean },
  getFile: (string) => void,
  streamingUrl: string,
  isMature: boolean,
  showMature: boolean,
  showHiddenByUser?: boolean,
  properties?: (Claim) => void,
  collectionId?: string,
  showNoSourceClaims?: boolean,
  isLivestream: boolean,
  viewCount: string,
  isLivestreamActive: boolean,
};

// preview image cards used in related video functionality, channel overview page and homepage
function ClaimPreviewTile(props: Props) {
  const {
    history,
    uri,
    date,
    isResolvingUri,
    thumbnail,
    title,
    resolveUri,
    claim,
    placeholder,
    banState,
    getFile,
    streamingUrl,
    isMature,
    showMature,
    showHiddenByUser,
    properties,
    showNoSourceClaims,
    isLivestream,
    isLivestreamActive,
    collectionId,
    mediaDuration,
    viewCount,
  } = props;
  const isRepost = claim && claim.repost_channel_url;
  const isCollection = claim && claim.value_type === 'collection';
  const isStream = claim && claim.value_type === 'stream';
  // $FlowFixMe
  const isPlayable =
    claim &&
    // $FlowFixMe
    claim.value &&
    // $FlowFixMe
    claim.value.stream_type &&
    // $FlowFixMe
    (claim.value.stream_type === 'audio' || claim.value.stream_type === 'video');
  const collectionClaimId = isCollection && claim && claim.claim_id;
  const shouldFetch = claim === undefined;
  const thumbnailUrl = useGetThumbnail(uri, claim, streamingUrl, getFile, placeholder) || thumbnail;
  const canonicalUrl = claim && claim.canonical_url;
  const permanentUrl = claim && claim.permanent_url;
  const listId = collectionId || collectionClaimId;
  const navigateUrl =
    formatLbryUrlForWeb(canonicalUrl || uri || '/') + (listId ? generateListSearchUrlParams(listId) : '');
  const navLinkProps = {
    to: navigateUrl,
    onClick: (e) => e.stopPropagation(),
  };

  let isValid = false;
  if (uri) {
    try {
      parseURI(uri);
      isValid = true;
    } catch (e) {
      isValid = false;
    }
  }

  const { listingType } = useContext(ClaimListDiscoverContext) || {};

  const signingChannel = claim && claim.signing_channel;
  const isChannel = claim && claim.value_type === 'channel';
  const channelUri = !isChannel ? signingChannel && signingChannel.permanent_url : claim && claim.permanent_url;
  const channelTitle = signingChannel && ((signingChannel.value && signingChannel.value.title) || signingChannel.name);
  const repostedChannelUri = isRepost && isChannel ? permanentUrl || canonicalUrl : undefined;

  // Aria-label value for claim preview
  let ariaLabelData = isChannel ? title : formatClaimPreviewTitle(title, channelTitle, date, mediaDuration);

  function handleClick(e) {
    if (navigateUrl) {
      history.push(navigateUrl);
    }
  }

  React.useEffect(() => {
    if (isValid && !isResolvingUri && shouldFetch && uri) {
      resolveUri(uri);
    }
  }, [isValid, isResolvingUri, uri, resolveUri, shouldFetch]);

  let shouldHide = false;

  if (isMature && !showMature) {
    // Unfortunately needed until this is resolved
    // https://github.com/lbryio/lbry-sdk/issues/2785
    shouldHide = true;
  } else {
    shouldHide =
      banState.blacklisted || banState.filtered || (!showHiddenByUser && (banState.muted || banState.blocked));
  }

  if (shouldHide || (isLivestream && !showNoSourceClaims)) {
    return null;
  }

  const isChannelPage = window.location.pathname.startsWith('/@');

  const shouldShowViewCount = !(!viewCount || (claim && claim.repost_url) || isLivestream || !isChannelPage);

  if (placeholder || (!claim && isResolvingUri)) {
    return (
      <li className={classnames('claim-preview--tile', {})}>
        <div className="placeholder media__thumb">
          <img src={PlaceholderTx} alt="Placeholder" />
        </div>
        <div className="placeholder__wrapper">
          <div className="placeholder claim-tile__title" />
          <div
            className={classnames('claim-tile__info placeholder', {
              contains_view_count: shouldShowViewCount,
            })}
          />
        </div>
      </li>
    );
  }

  let liveProperty = null;
  if (isLivestream === true) {
    liveProperty = (claim) => <>LIVE</>;
  }

  const LivestreamDateTimeLabel = () => {
    // If showing in upcoming and in the past. (we allow x time in past to show here if not live yet)
    if (listingType === 'UPCOMING') {
      // $FlowFixMe
      if (moment.unix(claim.value.release_time).isBefore()) {
        return __('Starting Soon');
      }
    } else {
      // If not in upcoming + live and in the future (started streaming a bit early)
      // $FlowFixMe
      if (isLivestreamActive && moment.unix(claim.value.release_time).isAfter()) {
        return __('Streaming Now');
      }
    }
    return <DateTime timeAgo uri={uri} />;
  };

  return (
    <li
      onClick={handleClick}
      className={classnames('card claim-preview--tile', {
        'claim-preview__wrapper--channel': isChannel,
        'claim-preview__live': isLivestreamActive,
      })}
    >
      <NavLink {...navLinkProps} role="none" tabIndex={-1} aria-hidden>
        <FileThumbnail thumbnail={thumbnailUrl} allowGifs>
          {!isChannel && (
            <React.Fragment>
              <div className="claim-preview__hover-actions">
                {isPlayable && <FileWatchLaterLink focusable={false} uri={uri} />}
              </div>
              {/* @if TARGET='app' */}
              <div className="claim-preview__hover-actions">
                {isStream && <FileDownloadLink focusable={false} uri={canonicalUrl} hideOpenButton />}
              </div>
              {/* @endif */}

              <div className="claim-preview__file-property-overlay">
                <PreviewOverlayProperties uri={uri} properties={liveProperty || properties} />
              </div>
            </React.Fragment>
          )}
          {isCollection && (
            <React.Fragment>
              <div className="claim-preview__collection-wrapper">
                <CollectionPreviewOverlay collectionId={listId} uri={uri} />
              </div>
            </React.Fragment>
          )}
        </FileThumbnail>
      </NavLink>
      <div className="claim-tile__header">
        <NavLink aria-label={ariaLabelData} {...navLinkProps}>
          <h2 className="claim-tile__title">
            <TruncatedText text={title || (claim && claim.name)} lines={isChannel ? 1 : 2} />
            {isChannel && (
              <div className="claim-tile__about">
                <UriIndicator uri={uri} />
              </div>
            )}
          </h2>
        </NavLink>
        <ClaimMenuList uri={uri} collectionId={listId} channelUri={channelUri} />
      </div>
      <div>
        <div
          className={classnames('claim-tile__info', {
            contains_view_count: shouldShowViewCount,
          })}
        >
          {isChannel ? (
            <div className="claim-tile__about--channel">
              <SubscribeButton uri={repostedChannelUri || uri} />
            </div>
          ) : (
            <React.Fragment>
              <UriIndicator focusable={false} uri={uri} link hideAnonymous>
                <ChannelThumbnail uri={channelUri} xsmall />
              </UriIndicator>

              <div className="claim-tile__about">
                <UriIndicator uri={uri} link />
                <div className="claim-tile__about--counts">
                  <FileViewCountInline uri={uri} isLivestream={isLivestream} />
                  {isLivestream && <LivestreamDateTimeLabel />}
                  {!isLivestream && <DateTime timeAgo uri={uri} />}
                </div>
              </div>
            </React.Fragment>
          )}
        </div>
        {isRepost && (
          <div className="claim-tile__repost-author">
            <ClaimRepostAuthor uri={uri} />
          </div>
        )}
      </div>
    </li>
  );
}

export default withRouter(ClaimPreviewTile);