add AppContext for state management and update ResourcesView to utilize context

frontend/src/components/AppContext.tsx

@@ -0,0 +1,19 @@
+import {createContext, ReactNode, useContext} from "react";
+
+export default function AppContext({
+  children,
+}: {
+  children: ReactNode;
+}) {
+  return (
+    <context.Provider value={new Map<string, any>()}>
+      {children}
+    </context.Provider>
+  );
+}
+
+const context = createContext<Map<string, any>>(new Map<string, any>());
+
+export function useAppContext() {
+  return useContext(context)
+}

frontend/src/components/resources_view.tsx

@@ -4,13 +4,39 @@ import showToast from "./toast.ts";
 import ResourceCard from "./resource_card.tsx";
 import {Masonry, useInfiniteLoader} from "masonic";
 import Loading from "./loading.tsx";
+import {useAppContext} from "./AppContext.tsx";
 
-export default function ResourcesView({loader}: {loader: (page: number) => Promise<PageResponse<Resource>>}) {
+export default function ResourcesView({loader, storageKey}: {loader: (page: number) => Promise<PageResponse<Resource>>, storageKey?: string}) {
   const [data, setData] = useState<Resource[]>([])
   const pageRef = useRef(1)
   const totalPagesRef = useRef(1)
   const isLoadingRef = useRef(false)
   
+  const appContext = useAppContext()
+
+  useEffect(() => {
+    if (storageKey) {
+      const data = appContext.get(storageKey + "/data")
+      const page = appContext.get(storageKey + "/page")
+      const totalPages = appContext.get(storageKey + "/totalPages")
+      console.log("loading data", data, page, totalPages)
+      if (data) {
+        setData(data)
+        pageRef.current = page
+        totalPagesRef.current = totalPages
+      }
+    }
+  }, [appContext, storageKey]);
+
+  useEffect(() => {
+    if (storageKey && data.length > 0) {
+      console.log("storing data", data)
+      appContext.set(storageKey + "/data", data)
+      appContext.set(storageKey + "/page", pageRef.current)
+      appContext.set(storageKey + "/totalPages", totalPagesRef.current)
+    }
+  }, [appContext, data, storageKey]);
+
   const loadPage = useCallback(async () => {
     if (pageRef.current > totalPagesRef.current) return
     if (isLoadingRef.current) return

frontend/src/main.tsx

@@ -6,6 +6,7 @@ import i18n from "i18next";
 import {initReactI18next} from "react-i18next";
 import LanguageDetector from "i18next-browser-languagedetector";
 import {i18nData} from "./i18n.ts";
+import AppContext from "./components/AppContext.tsx";
 
 i18n
   .use(initReactI18next)
@@ -20,7 +21,9 @@ i18n
   }).then(() => {
   createRoot(document.getElementById('root')!).render(
     <StrictMode>
-      <App/>
+      <AppContext>
+        <App/>
+      </AppContext>
     </StrictMode>,
   )
 })

frontend/src/pages/home_page.tsx

@@ -32,6 +32,6 @@ export default function HomePage() {
         </div>
       </div>
     }
-    <ResourcesView loader={(page) => network.getResources(page)}></ResourcesView>
+    <ResourcesView storageKey={"home_page"} loader={(page) => network.getResources(page)}></ResourcesView>
   </>
 }

frontend/src/pages/resource_details_page.tsx

@@ -232,7 +232,7 @@ function Article({ resource }: { resource: ResourceDetails }) {
       if (!resource.related) {
         return;
       }
-      for (let child of articleRef.current.children) {
+      for (const child of articleRef.current.children) {
         if (child.tagName === "P" && child.children.length === 1 && child.children[0].tagName === "A") {
           const href = (child.children[0] as HTMLAnchorElement).href as string
           if (href.startsWith(window.location.origin) || href.startsWith("/")) {
@@ -279,7 +279,7 @@ function Article({ resource }: { resource: ResourceDetails }) {
         }
       }
     }
-  }, [resource])
+  }, [navigate, resource])
 
   return <article ref={articleRef}>
     <Markdown>{resource.article}</Markdown>