bookbrainz/bookbrainz-site

/*
 * Copyright (C) 2020  Nicolas Pelletier
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

import {Button, Col, Collapse, Row} from 'react-bootstrap';
import {formatDate, stringToHTMLWithLinks} from '../../../helpers/utils';
import PropTypes from 'prop-types';
import React from 'react';


class EntityAnnotation extends React.Component {
    constructor(props) {
      super(props);
      this.annotationContentRef = React.createRef();
      this.state = {
            open: false,
            showButton: true
      };
    }


    componentDidMount() {
        const {annotation} = this.props.entity;
        if (!annotation || !annotation.content) {
            return;
        }
        const spanElement = document.querySelector('.annotation-content span');
        if (spanElement.offsetHeight < this.annotationContentRef.current.offsetHeight) {
            // eslint-disable-next-line react/no-did-mount-set-state
            this.setState({open: true, showButton: false});
        }
    }

    handleToggleCollapse = () => {
        this.setState(prevState => ({open: !prevState.open}));
    };

    render() {
        const {annotation} = this.props.entity;
        if (!annotation || !annotation.content) {
            return null;
        }
        const lastModifiedDate = new Date(annotation.lastRevision.createdAt);
        return (
            <Row>
                <Col lg={12}>
                    <h2>Annotation</h2>
                    <Collapse in={this.state.open}>
                        <pre className="annotation-content" ref={this.annotationContentRef} >{stringToHTMLWithLinks(annotation.content)}</pre>
                    </Collapse>
                    {this.state.showButton &&
                    <Button variant="link" onClick={this.handleToggleCollapse}>
                        Show {this.state.open ? 'less' : 'more…'}
                    </Button>}
                    <p className="text-muted">Last modified: <span title={formatDate(lastModifiedDate, true)}>{formatDate(lastModifiedDate)}</span>
                        <span className="small"> (revision <a href={`/revision/${annotation.lastRevisionId}`}>#{annotation.lastRevisionId}</a>)</span>
                    </p>
                </Col>
            </Row>
        );
    }
}
EntityAnnotation.displayName = 'EntityAnnotation';
EntityAnnotation.propTypes = {
    entity: PropTypes.object.isRequired
};

export default EntityAnnotation;