fix identical path handling

Author: yuki-takei

apps/app/src/pages/[[...path]]/index.page.tsx

@@ -111,7 +111,8 @@ const Page: NextPageWithLayout<Props> = (props: Props) => {
   const pageMeta = isInitialProps(props) ? props.pageWithMeta?.meta : undefined;
 
   useHydratePageAtoms(pageData, pageMeta, {
-    redirectFrom: props.redirectFrom ?? undefined,
+    redirectFrom: props.redirectFrom,
+    isIdenticalPath: props.isIdenticalPathPage,
     templateTags: props.templateTagData,
     templateBody: props.templateBodyData,
   });

apps/app/src/pages/[[...path]]/use-same-route-navigation.ts

@@ -1,7 +1,7 @@
 import { useEffect } from 'react';
 import { useRouter } from 'next/router';
 
-import { useFetchCurrentPage } from '~/states/page';
+import { useFetchCurrentPage, useIsIdenticalPath } from '~/states/page';
 import { useSetEditingMarkdown } from '~/states/ui/editor';
 
 /**
@@ -12,17 +12,22 @@ import { useSetEditingMarkdown } from '~/states/ui/editor';
  */
 export const useSameRouteNavigation = (): void => {
   const router = useRouter();
+
+  const isIdenticalPath = useIsIdenticalPath();
   const { fetchCurrentPage } = useFetchCurrentPage();
   const setEditingMarkdown = useSetEditingMarkdown();
 
   // useEffect to trigger data fetching when the path changes
   useEffect(() => {
+    // If the path is identical, do not fetch
+    if (isIdenticalPath) return;
+
     const fetch = async () => {
       const pageData = await fetchCurrentPage({ path: router.asPath });
       if (pageData?.revision?.body != null) {
         setEditingMarkdown(pageData.revision.body);
       }
     };
     fetch();
-  }, [router.asPath, fetchCurrentPage, setEditingMarkdown]);
+  }, [router.asPath, isIdenticalPath, fetchCurrentPage, setEditingMarkdown]);
 };

apps/app/src/states/page/hydrate.ts

@@ -11,6 +11,7 @@ import {
   currentPageDataAtom,
   currentPageIdAtom,
   isForbiddenAtom,
+  isIdenticalPathAtom,
   pageNotFoundAtom,
   redirectFromAtom,
   remoteRevisionBodyAtom,
@@ -50,6 +51,7 @@ export const useHydratePageAtoms = (
     redirectFrom?: string;
     templateTags?: string[];
     templateBody?: string;
+    isIdenticalPath?: boolean;
   },
 ): void => {
   useHydrateAtoms([
@@ -78,6 +80,7 @@ export const useHydratePageAtoms = (
       [shareLinkIdAtom, options?.shareLinkId],
 
       [redirectFromAtom, options?.redirectFrom ?? undefined],
+      [isIdenticalPathAtom, options?.isIdenticalPath ?? false],
 
       // Template data - from options (not auto-extracted from page)
       [templateTagsAtom, options?.templateTags ?? []],