lbry-desktop/src/ui/page/file/view.jsx

// @flow
import * as MODALS from 'constants/modal_types';
import * as icons from 'constants/icons';
import * as React from 'react';
import { buildURI, normalizeURI } from 'lbry-redux';
import FileViewer from 'component/fileViewer';
import Thumbnail from 'component/common/thumbnail';
import FilePrice from 'component/filePrice';
import FileDetails from 'component/fileDetails';
import FileActions from 'component/fileActions';
import UriIndicator from 'component/uriIndicator';
import Icon from 'component/common/icon';
import DateTime from 'component/dateTime';
import Button from 'component/button';
import SubscribeButton from 'component/subscribeButton';
import Page from 'component/page';
import FileDownloadLink from 'component/fileDownloadLink';
import classnames from 'classnames';
import getMediaType from 'util/get-media-type';
import RecommendedContent from 'component/recommendedContent';
import ClaimTags from 'component/claimTags';
import CommentsList from 'component/commentsList';
import CommentCreate from 'component/commentCreate';
import VideoDuration from 'component/videoDuration';
import ClaimUri from 'component/claimUri';

type Props = {
  claim: StreamClaim,
  fileInfo: FileListItem,
  contentType: string,
  uri: string,
  rewardedContentClaimIds: Array<string>,
  obscureNsfw: boolean,
  claimIsMine: boolean,
  costInfo: ?{ cost: number },
  fetchFileInfo: string => void,
  fetchCostInfo: string => void,
  setViewed: string => void,
  isSubscribed: ?string,
  isSubscribed: boolean,
  channelUri: string,
  viewCount: number,
  prepareEdit: ({}, string, {}) => void,
  openModal: (id: string, { uri: string }) => void,
  markSubscriptionRead: (string, string) => void,
  fetchViewCount: string => void,
  balance: number,
  title: string,
  thumbnail: ?string,
  nsfw: boolean,
};

class FilePage extends React.Component<Props> {
  static PLAYABLE_MEDIA_TYPES = ['audio', 'video'];
  static PREVIEW_MEDIA_TYPES = [
    'text',
    'model',
    'image',
    'script',
    'document',
    '3D-file',
    'comic-book',
    // Bypass unplayable files
    // TODO: Find a better way to detect supported types
    'application',
  ];

  constructor(props: Props) {
    super(props);
    (this: any).viewerContainer = React.createRef();
  }

  viewerContainer: { current: React.ElementRef<any> };

  componentDidMount() {
    const {
      uri,
      claim,
      fetchFileInfo,
      fetchCostInfo,
      setViewed,
      isSubscribed,
      claimIsMine,
      fetchViewCount,
    } = this.props;

    if (isSubscribed) {
      this.removeFromSubscriptionNotifications();
    }

    if (claimIsMine) {
      fetchViewCount(claim.claim_id);
    }

    // always refresh file info when entering file page to see if we have the file
    // @if TARGET='app'
    fetchFileInfo(uri);
    // @endif

    // See https://github.com/lbryio/lbry-desktop/pull/1563 for discussion
    fetchCostInfo(uri);
    setViewed(uri);
  }

  componentDidUpdate(prevProps: Props) {
    const { isSubscribed, claim, uri, fileInfo, setViewed, fetchViewCount, claimIsMine, fetchFileInfo } = this.props;

    if (!prevProps.isSubscribed && isSubscribed) {
      this.removeFromSubscriptionNotifications();
    }

    if (prevProps.uri !== uri && claimIsMine) {
      fetchViewCount(claim.claim_id);
    }

    if (prevProps.uri !== uri) {
      setViewed(uri);
    }

    // @if TARGET='app'
    if (fileInfo === undefined) {
      fetchFileInfo(uri);
    }
    // @endif
  }

  removeFromSubscriptionNotifications() {
    // Always try to remove
    // If it doesn't exist, nothing will happen
    const { markSubscriptionRead, uri, channelUri } = this.props;
    markSubscriptionRead(channelUri, uri);
  }

  render() {
    const {
      claim,
      contentType,
      uri,
      rewardedContentClaimIds,
      obscureNsfw,
      openModal,
      claimIsMine,
      prepareEdit,
      costInfo,
      fileInfo,
      channelUri,
      viewCount,
      balance,
      title,
      thumbnail,
      nsfw,
    } = this.props;

    // File info
    const { signing_channel: signingChannel } = claim;
    const channelName = signingChannel && signingChannel.name;
    const { PLAYABLE_MEDIA_TYPES, PREVIEW_MEDIA_TYPES } = FilePage;
    const isRewardContent = (rewardedContentClaimIds || []).includes(claim.claim_id);
    const shouldObscureThumbnail = obscureNsfw && nsfw;
    const fileName = fileInfo ? fileInfo.file_name : null;
    const mediaType = getMediaType(contentType, fileName);
    const isPreviewType = PREVIEW_MEDIA_TYPES.includes(mediaType);
    const isPlayableType = PLAYABLE_MEDIA_TYPES.includes(mediaType);
    const showFile = isPlayableType || isPreviewType;

    const speechShareable =
      costInfo && costInfo.cost === 0 && contentType && ['video', 'image'].includes(contentType.split('/')[0]);
    // We want to use the short form uri for editing
    // This is what the user is used to seeing, they don't care about the claim id
    // We will select the claim id before they publish
    let editUri;
    if (claimIsMine) {
      const uriObject: { contentName: string, claimId: string, channelName?: string } = {
        contentName: claim.name,
        claimId: claim.claim_id,
      };
      if (channelName) {
        uriObject.channelName = channelName;
      }

      editUri = buildURI(uriObject);
    }

    const insufficientCredits = !claimIsMine && costInfo && costInfo.cost > balance;

    return (
      <Page className="main--file-page">
        <div className="grid-area--content card">
          {!fileInfo && insufficientCredits && (
            <div className="media__insufficient-credits help--warning">
              {__(
                'The publisher has chosen to charge LBC to view this content. Your balance is currently too low to view it.'
              )}{' '}
              {__('Checkout')} <Button button="link" navigate="/$/rewards" label={__('the rewards page')} />{' '}
              {__('or send more LBC to your wallet.')}
            </div>
          )}
          {showFile && (
            <FileViewer
              uri={uri}
              className="content__embedded"
              mediaType={mediaType}
              isPlayableType={isPlayableType}
              viewerContainer={this.viewerContainer}
              insufficientCredits={insufficientCredits}
            />
          )}
          {!showFile &&
            (thumbnail ? (
              <Thumbnail shouldObscure={shouldObscureThumbnail} src={thumbnail} />
            ) : (
              <div
                className={classnames('content__empty', {
                  'content__empty--nsfw': shouldObscureThumbnail,
                })}
              >
                <div className="card__media-text">{__("Sorry, looks like we can't preview this file.")}</div>
              </div>
            ))}
        </div>

        <div className="grid-area--info media__content media__content--large">
          <h1 className="media__title media__title--large">{title}</h1>
          <div className="media__subtext media__subtext--large">
            <div className="media__subtitle__channel">
              <UriIndicator uri={uri} link />
            </div>
          </div>
          <div className="media__actions media__actions--between">
            <div className="media__action-group--large">
              {claimIsMine && (
                <Button
                  button="primary"
                  icon={icons.EDIT}
                  label={__('Edit')}
                  navigate="/$/publish"
                  onClick={() => {
                    prepareEdit(claim, editUri, fileInfo);
                  }}
                />
              )}
              {!claimIsMine && (
                <React.Fragment>
                  {channelUri && <SubscribeButton uri={channelUri} channelName={channelName} />}

                  <Button
                    button="alt"
                    icon={icons.TIP}
                    label={__('Send a tip')}
                    onClick={() => openModal(MODALS.SEND_TIP, { uri })}
                  />
                </React.Fragment>
              )}
              <Button
                button="alt"
                icon={icons.SHARE}
                label={__('Share')}
                onClick={() => openModal(MODALS.SOCIAL_SHARE, { uri, speechShareable })}
              />
            </div>

            <div className="media__action-group--large">
              <FileDownloadLink uri={uri} />
              <FileActions
                uri={uri}
                claimId={claim.claim_id}
                showFullscreen={isPreviewType}
                viewerContainer={this.viewerContainer}
              />
            </div>
          </div>

          <div className="media__actions media__actions--between">
            <div className="media__subtext media__subtext--large">
              <DateTime uri={uri} show={DateTime.SHOW_DATE} />
            </div>

            <div className="media__subtext media__subtext--large">
              <VideoDuration uri={uri} />

              {claimIsMine && (
                <p>
                  {viewCount} {viewCount !== 1 ? __('Views') : __('View')}
                </p>
              )}
            </div>
          </div>

          <div className="media__info--large">
            <ClaimTags uri={uri} type="large" />
            <FileDetails uri={uri} />

            <div className="media__info-title">{__('Comments')}</div>
            <CommentCreate uri={uri} />
            <CommentsList uri={uri} />
          </div>
        </div>
        <div className="grid-area--related">
          <div className="media__actions media__actions--between">
            <ClaimUri uri={uri} />
            <div className="file-properties">
              {isRewardContent && <Icon size={20} iconColor="red" icon={icons.FEATURED} />}
              {nsfw && <div className="badge badge--mature">{__('Mature')}</div>}
              <FilePrice badge uri={normalizeURI(uri)} />
            </div>
          </div>
          <RecommendedContent uri={uri} />
        </div>
      </Page>
    );
  }
}

export default FilePage;