import { getLayout } from '@components/Layouts/Layout'; import PostPreview from '@components/PostPreview/PostPreview'; import { t } from '@lingui/macro'; import { NextPageWithLayout } from '@ts/types/app'; import { SubjectProps, ThematicPreview } from '@ts/types/taxonomies'; import { loadTranslation } from '@utils/helpers/i18n'; import { GetStaticPaths, GetStaticProps, GetStaticPropsContext } from 'next'; import { ParsedUrlQuery } from 'querystring'; import styles from '@styles/pages/Page.module.scss'; import { getAllSubjectsSlug, getSubjectBySlug, } from '@services/graphql/queries'; import PostHeader from '@components/PostHeader/PostHeader'; import { ArticleMeta } from '@ts/types/articles'; import { RelatedThematics, ToC, TopicsList } from '@components/Widgets'; import { useRef } from 'react'; import Head from 'next/head'; import Sidebar from '@components/Sidebar/Sidebar'; import { Article as Article, Blog, Graph, WebPage } from 'schema-dts'; import { config } from '@config/website'; import { useRouter } from 'next/router'; const Subject: NextPageWithLayout = ({ subject }) => { const relatedThematics = useRef([]); const router = useRouter(); const updateRelatedThematics = (newThematics: ThematicPreview[]) => { newThematics.forEach((thematic) => { const thematicIndex = relatedThematics.current.findIndex( (relatedThematic) => relatedThematic.id === thematic.id ); const hasThematic = thematicIndex === -1 ? false : true; if (!hasThematic) relatedThematics.current.push(thematic); }); }; const getPostsList = () => { return [...subject.posts].reverse().map((post) => { updateRelatedThematics(post.thematics); return (
    • ); }); }; const meta: ArticleMeta = { dates: subject.dates, website: subject.officialWebsite, }; const subjectUrl = `${config.url}${router.asPath}`; const webpageSchema: WebPage = { '@id': `${subjectUrl}`, '@type': 'WebPage', breadcrumb: { '@id': `${config.url}/#breadcrumb` }, name: subject.seo.title, description: subject.seo.metaDesc, inLanguage: config.locales.defaultLocale, reviewedBy: { '@id': `${config.url}/#branding` }, url: `${config.url}`, isPartOf: { '@id': `${config.url}`, }, }; const publicationDate = new Date(subject.dates.publication); const updateDate = new Date(subject.dates.update); const articleSchema: Article = { '@id': `${config.url}/subject`, '@type': 'Article', name: subject.title, description: subject.intro, author: { '@id': `${config.url}/#branding` }, copyrightYear: publicationDate.getFullYear(), creator: { '@id': `${config.url}/#branding` }, dateCreated: publicationDate.toISOString(), dateModified: updateDate.toISOString(), datePublished: publicationDate.toISOString(), editor: { '@id': `${config.url}/#branding` }, thumbnailUrl: subject.featuredImage?.sourceUrl, image: subject.featuredImage?.sourceUrl, inLanguage: config.locales.defaultLocale, isPartOf: { '@id': `${config.url}/blog` }, license: 'https://creativecommons.org/licenses/by-sa/4.0/deed.fr', mainEntityOfPage: { '@id': `${subjectUrl}` }, subjectOf: { '@id': `${config.url}/blog` }, }; const schemaJsonLd: Graph = { '@context': 'https://schema.org', '@graph': [webpageSchema, articleSchema], }; return ( <> {subject.seo.title}
    {subject.posts.length > 0 && (

    {t`All posts in ${subject.title}`}

      {getPostsList()}
    )}
    ); }; Subject.getLayout = getLayout; interface PostParams extends ParsedUrlQuery { slug: string; } export const getStaticProps: GetStaticProps = async ( context: GetStaticPropsContext ) => { const translation = await loadTranslation( context.locale!, process.env.NODE_ENV === 'production' ); const { slug } = context.params as PostParams; const subject = await getSubjectBySlug(slug); const breadcrumbTitle = subject.title; return { props: { breadcrumbTitle, subject, translation, }, }; }; export const getStaticPaths: GetStaticPaths = async () => { const allSlugs = await getAllSubjectsSlug(); return { paths: allSlugs.map((post) => `/sujet/${post.slug}`), fallback: true, }; }; export default Subject;