web: fix search debounce and client/server boundary

web/src/app/sok/page.tsx

@@ -1,10 +1,10 @@
-import { graphql } from "@/gql";
 import { getClient } from "@/app/client";
 import {
-  SearchContainer,
   type SearchResult,
-} from "@/components/search/SearchContainer";
-import { Suspense } from "react";
+  SearchResults,
+} from "@/components/search/SearchResults";
+import { SearchShell } from "@/components/search/SearchShell";
+import { graphql } from "@/gql";
 
 // TODO: seo metadata?
 
@@ -69,9 +69,9 @@ export default async function Page({
 
   return (
     <main className="site-main" id="main">
-      <Suspense key={query}>
-        <SearchContainer query={query ?? ""} results={results} />
-      </Suspense>
+      <SearchShell initialQuery={query ?? ""}>
+        {query ? <SearchResults results={results} /> : null}
+      </SearchShell>
     </main>
   );
 }

web/src/components/search/SearchResults.tsx

@@ -1,18 +1,8 @@
-"use client";
-import { useEffect, useState } from "react";
-import { useDebouncedCallback } from "use-debounce";
-import { PageHeader } from "../general/PageHeader";
-import { useRouter } from "next/navigation";
-import {
-  ImageFragmentDefinition,
-  getSearchPath,
-  stripHtml,
-} from "@/lib/common";
+import { ImageFragmentDefinition, stripHtml } from "@/lib/common";
 import { formatDate, formatOccurrenceMonths } from "@/lib/date";
 import { unmaskFragment } from "@/gql";
 import type { ImageFragment, SearchQuery } from "@/gql/graphql";
 import styles from "./searchContainer.module.scss";
-import { Icon } from "../general/Icon";
 import { Image } from "../general/Image";
 import Link from "next/link";
 
@@ -29,57 +19,12 @@ const PAGE_TYPES = {
 type SupportedTypename = keyof typeof PAGE_TYPES;
 type SupportedResult = Extract<SearchResult, { __typename: SupportedTypename }>;
 
-export function SearchContainer({
-  query,
-  results,
-}: {
-  query: string;
-  results: SearchResult[];
-}) {
-  const { replace } = useRouter();
-  const [inputValue, setInputValue] = useState(query);
-
-  useEffect(() => {
-    setInputValue(query);
-  }, [query]);
-
-  const pushQuery = useDebouncedCallback((next: string) => {
-    replace(getSearchPath(next));
-  }, 500);
-
-  return (
-    <div className={styles.searchContainer}>
-      <PageHeader heading="Søk" />
-      <div className={styles.searchField}>
-        <input
-          name="query"
-          type="text"
-          autoFocus
-          value={inputValue}
-          onChange={(e) => {
-            setInputValue(e.target.value);
-            pushQuery(e.target.value);
-          }}
-        />
-        <div className={styles.searchIcon}>
-          <Icon type="search" />
-        </div>
-      </div>
-      {query && <SearchResults results={results} />}
-    </div>
-  );
-}
-
 function capitalizeFirstLetter(s: string) {
   return s.charAt(0).toUpperCase() + s.slice(1);
 }
 
 function isSupported(result: SearchResult): result is SupportedResult {
-  return (
-    result.__typename in PAGE_TYPES &&
-    "id" in result &&
-    !!result.id
-  );
+  return result.__typename in PAGE_TYPES && "id" in result && !!result.id;
 }
 
 function getResultType(result: SupportedResult): string {
@@ -131,7 +76,7 @@ function getResultSnippet(result: SupportedResult): string | null {
   }
 }
 
-function SearchResults({ results }: { results: SearchResult[] }) {
+export function SearchResults({ results }: { results: SearchResult[] }) {
   if (!results.length) {
     return <div className={styles.noResults}>Ingen resultater</div>;
   }

web/src/components/search/SearchShell.tsx

@@ -0,0 +1,57 @@
+"use client";
+import { useEffect, useRef, useState, useTransition, type ReactNode } from "react";
+import { useDebouncedCallback } from "use-debounce";
+import { useRouter } from "next/navigation";
+import { PageHeader } from "../general/PageHeader";
+import { getSearchPath } from "@/lib/common";
+import styles from "./searchContainer.module.scss";
+import { Icon } from "../general/Icon";
+
+export function SearchShell({
+  initialQuery,
+  children,
+}: {
+  initialQuery: string;
+  children: ReactNode;
+}) {
+  const { replace } = useRouter();
+  const [inputValue, setInputValue] = useState(initialQuery);
+  const [, startTransition] = useTransition();
+  const lastPushedRef = useRef(initialQuery);
+
+  const pushQuery = useDebouncedCallback((next: string) => {
+    lastPushedRef.current = next;
+    startTransition(() => {
+      replace(getSearchPath(next));
+    });
+  }, 300);
+
+  useEffect(() => {
+    if (initialQuery !== lastPushedRef.current) {
+      lastPushedRef.current = initialQuery;
+      setInputValue(initialQuery);
+    }
+  }, [initialQuery]);
+
+  return (
+    <div className={styles.searchContainer}>
+      <PageHeader heading="Søk" />
+      <div className={styles.searchField}>
+        <input
+          name="query"
+          type="text"
+          autoFocus
+          value={inputValue}
+          onChange={(e) => {
+            setInputValue(e.target.value);
+            pushQuery(e.target.value);
+          }}
+        />
+        <div className={styles.searchIcon}>
+          <Icon type="search" />
+        </div>
+      </div>
+      {children}
+    </div>
+  );
+}