chore: update sidebar and widgets styles

I'm now using a widget that can be expanded/collapsed. It also allows
me to handle more effectively widgets overflow and to avoid styles
repetitions.
However, with stylelint rule "no-descending-specificity", I'm not sure
if the stylesheets are really logical... Maybe I should deactivate this
rule.

1 files changed, 46 insertions, 0 deletions

diff --git a/src/components/Widgets/TopicsList/TopicsList.tsx b/src/components/Widgets/TopicsList/TopicsList.tsx
new file mode 100644
index 0000000..5bf12b9
--- /dev/null
+++ b/src/components/Widgets/TopicsList/TopicsList.tsx
@@ -0,0 +1,46 @@
+import { ExpandableWidget, List } from '@components/WidgetParts';
+import { t } from '@lingui/macro';
+import { getAllSubjects } from '@services/graphql/queries';
+import { TitleLevel } from '@ts/types/app';
+import Link from 'next/link';
+import { useRouter } from 'next/router';
+import useSWR from 'swr';
+
+const TopicsList = ({
+  title,
+  titleLevel,
+}: {
+  title: string;
+  titleLevel?: TitleLevel;
+}) => {
+  const router = useRouter();
+  const isTopic = () => router.asPath.includes('/sujet/');
+  const currentTopicSlug = isTopic()
+    ? router.asPath.replace('/sujet/', '')
+    : '';
+
+  const { data, error } = useSWR('/api/subjects', getAllSubjects);
+
+  if (error) return <div>{t`Failed to load.`}</div>;
+  if (!data) return <div>{t`Loading...`}</div>;
+
+  const subjects = data.map((subject) => {
+    return currentTopicSlug !== subject.slug ? (
+      <li key={subject.databaseId}>
+        <Link href={`/sujet/${subject.slug}`}>
+          <a>{subject.title}</a>
+        </Link>
+      </li>
+    ) : (
+      ''
+    );
+  });
+
+  return (
+    <ExpandableWidget title={title} titleLevel={titleLevel} withBorders={true}>
+      <List items={subjects} />
+    </ExpandableWidget>
+  );
+};
+
+export default TopicsList;