import React from 'react';
import AssetPreview from 'components/AssetPreview';

class ChannelClaimsDisplay extends React.Component {
  constructor (props) {
    super(props);
    this.showNextResultsPage = this.showNextResultsPage.bind(this);
    this.showPreviousResultsPage = this.showPreviousResultsPage.bind(this);
  }
  showPreviousResultsPage () {
    const { channel: { claimsData: { currentPage } } } = this.props;
    const previousPage = parseInt(currentPage) - 1;
    this.showNewPage(previousPage);
  }
  showNextResultsPage () {
    const { channel: { claimsData: { currentPage } } } = this.props;
    const nextPage = parseInt(currentPage) + 1;
    this.showNewPage(nextPage);
  }
  showNewPage (page) {
    const { channelKey, channel: { name, longId } } = this.props;
    this.props.onChannelPageUpdate(channelKey, name, longId, page);
  }
  render () {
    const { channel: { claimsData: { claims, currentPage, totalPages } } } = this.props;
    return (
      <div className="row row--tall">
        {claims &&
        <div>
          {claims.map((claim, index) => <AssetPreview
            name={claim.name}
            claimId={claim.claimId}
            fileExt={claim.fileExt}
            contentType={claim.contentType}
            key={`${claim.name}-${index}`}
          />)}
          <div>
            {(currentPage > 1) &&
            <button className={'button--secondary'} onClick={this.showPreviousResultsPage}>Previous Page</button>
            }
            {(currentPage < totalPages) &&
            <button className={'button--secondary'} onClick={this.showNextResultsPage}>Next Page</button>
            }
          </div>
        </div>
        }
      </div>
    );
  }
};

export default ChannelClaimsDisplay;