text: /**
   * SEO component that queries for data with
   *  Gatsby's useStaticQuery React hook
   *
   * See: https://www.gatsbyjs.org/docs/use-static-query/
   */
  
  import React from 'react';
  import PropTypes from 'prop-types';
  import {Helmet} from 'gatsby-plugin-react-i18next';
  import {useStaticQuery, graphql} from 'gatsby';
  
  function SEO({description, meta, title}) {
    const {site} = useStaticQuery(
      graphql`
        query {
          site {
            siteMetadata {
              title
              description
              author
            }
          }
        }
      `
    );
  
    const metaDescription = description || site.siteMetadata.description;
  
    return (
      <Helmet
        title={title}
        titleTemplate={`%s | ${site.siteMetadata.title}`}
        meta={[
          {
            name: `description`,
            content: metaDescription
          },
          {
            property: `og:title`,
            content: title
          },
          {
            property: `og:description`,
            content: metaDescription
          },
          {
            property: `og:type`,
            content: `website`
          },
          {
            name: `twitter:card`,
            content: `summary`
          },
          {
            name: `twitter:creator`,
            content: site.siteMetadata.author
          },
          {
            name: `twitter:title`,
            content: title
          },
          {
            name: `twitter:description`,
            content: metaDescription
          }
        ].concat(meta)}
      />
    );
  }
  
  SEO.defaultProps = {
    meta: [],
    description: ``
  };
  
  SEO.propTypes = {
    description: PropTypes.string,
    lang: PropTypes.string,
    meta: PropTypes.arrayOf(PropTypes.object),
    title: PropTypes.string.isRequired
  };
  
  export default SEO;
  