feat: add webid to contact after sharing

app/components/FileManager.tsx

@@ -119,6 +119,36 @@ export default function FileManager() {
     });
   };
 
+  // Handle URL changes from browser back/forward buttons
+  useEffect(() => {
+    if (isLoadingStorages || storages.length === 0 || !isInitialized) {
+      return;
+    }
+
+    const urlParam = getUrlFromSearchParams();
+
+    if (!urlParam) {
+      // No URL in params - reset to root if we have a storage selected
+      if (selectedStorageId) {
+        const storage = storages.find((s) => s.id === selectedStorageId);
+        if (storage) {
+          setCurrentPath("/");
+          removeUrlFromStorage();
+        }
+      }
+      return;
+    }
+
+    // URL changed - update state to match
+    const matchingStorage = storages.find((s) => urlParam === s.url || urlParam.startsWith(s.url));
+
+    if (matchingStorage) {
+      setSelectedStorageId(matchingStorage.id);
+      setCurrentPath(urlParam === matchingStorage.url ? "/" : urlParam);
+      saveUrlToStorage(urlParam);
+    }
+  }, [searchParams, storages, isLoadingStorages, isInitialized, selectedStorageId]);
+
   useEffect(() => {
     if (isLoadingStorages || storages.length === 0 || isInitialized) {
       return;
@@ -187,19 +217,28 @@ export default function FileManager() {
     };
   }, [contextMenuState]);
 
-  const updateUrl = (url: string | null) => {
+  const updateUrl = (url: string | null, addToHistory: boolean = true) => {
     if (!url || url === "/") {
       removeUrlFromStorage();
       if (typeof window !== "undefined" && window.location.search) {
-        router.replace("/", { scroll: false });
+        if (addToHistory) {
+          router.push("/", { scroll: false });
+        } else {
+          router.replace("/", { scroll: false });
+        }
       }
       return;
     }
 
     const params = new URLSearchParams();
     params.set("url", safeEncodeUrl(url));
     saveUrlToStorage(url);
-    router.replace(`/?${params.toString()}`, { scroll: false });
+
+    if (addToHistory) {
+      router.push(`/?${params.toString()}`, { scroll: false });
+    } else {
+      router.replace(`/?${params.toString()}`, { scroll: false });
+    }
   };
 
   const containerUrlToBrowse = selectedStorageId
@@ -273,7 +312,7 @@ export default function FileManager() {
 
     if (fileToRename && currentPath === fileToRename.url) {
       setCurrentPath(newUrl);
-      updateUrl(newUrl);
+      updateUrl(newUrl, false);
     }
     // Trigger refresh to update file list immediately
     setRefreshKey((prev) => prev + 1);
@@ -600,11 +639,11 @@ export default function FileManager() {
         setSelectedStorageId(file.id);
         setCurrentPath("/");
         setSelectedFileIds([]);
-        updateUrl(file.url);
+        updateUrl(file.url, true);
       } else if (selectedStorageId) {
         setCurrentPath(file.url);
         setSelectedFileIds([]);
-        updateUrl(file.url);
+        updateUrl(file.url, true);
       }
     } else {
       window.open(file.url, "_blank");
@@ -725,15 +764,15 @@ export default function FileManager() {
       setSelectedStorageId(null);
       setCurrentPath("/");
       setSelectedFileIds([]);
-      updateUrl(null);
+      updateUrl(null, true);
     } else {
       const selectedStorage = storages.find((s) => s.id === selectedStorageId);
       if (selectedStorage && path === selectedStorage.url) {
         setCurrentPath("/");
-        updateUrl(selectedStorage.url);
+        updateUrl(selectedStorage.url, true);
       } else {
         setCurrentPath(path);
-        updateUrl(path);
+        updateUrl(path, true);
       }
       setSelectedFileIds([]);
     }
@@ -907,8 +946,7 @@ export default function FileManager() {
           resourceUrl={sharedResourceUrl}
           resourceName={sharedResourceName}
           onOpenInApp={(url) => {
-            // Navigate to the resource URL in the file manager
-            updateUrl(url);
+            updateUrl(url, true);
           }}
         />
         {isDragActive && (

app/components/ShareDialog.tsx

@@ -5,7 +5,7 @@ import Modal from "./shared/Modal";
 import Button from "./shared/Button";
 import UrlCombobox, { ComboboxOption } from "./shared/UrlCombobox";
 import { FileItemData } from "./FileItem";
-import { fetchUserContacts, Contact } from "../lib/helpers/contactUtils";
+import { fetchUserContacts, Contact, addContactToProfile } from "../lib/helpers/contactUtils";
 import { fetchAndParseProfile, extractNameAndEmail } from "../lib/helpers/profileUtils";
 import { getResourceAccessList } from "../lib/helpers/acpUtils";
 import { UserIcon, MagnifyingGlassIcon, LockClosedIcon, XMarkIcon, CheckCircleIcon } from "@heroicons/react/24/outline";
@@ -165,6 +165,28 @@ export default function ShareDialog({
         const webIds = peopleChips.map((chip) => chip.webId);
         await onShare(webIds, selectedAccessLevel);
 
+        // After successful sharing, add new WebIDs to contacts if they're not already there
+        const existingContactWebIds = new Set(contacts.map(c => c.webId));
+        const newWebIds = webIds.filter(webId => !existingContactWebIds.has(webId));
+
+        for (const webId of newWebIds) {
+          try {
+            await addContactToProfile(webId);
+          } catch (error) {
+            console.warn(`Failed to add ${webId} to contacts:`, error);
+          }
+        }
+
+        // Refresh contacts list if we added any new ones
+        if (newWebIds.length > 0) {
+          try {
+            const updatedContacts = await fetchUserContacts();
+            setContacts(updatedContacts);
+          } catch (error) {
+            console.warn("Failed to refresh contacts list:", error);
+          }
+        }
+
         // Refresh access list after sharing
         if (file) {
           const resourceUrl = file.type === "folder" && !file.url.endsWith("/") ? file.url + "/" : file.url;

app/lib/helpers/contactUtils.ts

@@ -1,6 +1,16 @@
 import { NamedNode } from "n3";
 import { fetchAndParseProfile, extractNameAndEmail, getCachedProfile } from "./profileUtils";
-import { getSession } from "./sessionUtils";
+import { getSession, getAuthenticatedSession } from "./sessionUtils";
+import { 
+  getSolidDataset, 
+  getThing, 
+  createThing, 
+  addUrl, 
+  getUrlAll,
+  setThing, 
+  saveSolidDatasetAt,
+  UrlString 
+} from "@inrupt/solid-client";
 
 export interface Contact {
     webId: string;
@@ -75,3 +85,60 @@ export async function fetchUserContacts(): Promise<Contact[]> {
         return [];
     }
 }
+
+/**
+ * Adds a contact (WebID) to the user's profile using foaf:knows relationship
+ * @param contactWebId - The WebID of the contact to add
+ * @returns Promise that resolves when the contact is added
+ */
+export async function addContactToProfile(contactWebId: string): Promise<void> {
+    const session = getSession();
+
+    if (!session.info.isLoggedIn || !session.info.webId) {
+        throw new Error("User is not logged in");
+    }
+
+    const userWebId = session.info.webId;
+    const { fetch } = getAuthenticatedSession();
+
+    const profileUrl = userWebId.split('#')[0] as UrlString;
+
+    try {
+        // Fetch the user's profile dataset
+        let dataset = await getSolidDataset(profileUrl, { fetch });
+
+        // Get the main subject (usually WebID or WebID#me)
+        const mainSubject = userWebId as UrlString;
+        let thing = getThing(dataset, mainSubject);
+
+        // If thing doesn't exist, try with #me fragment
+        if (!thing) {
+            const meSubject = `${profileUrl}#me` as UrlString;
+            thing = getThing(dataset, meSubject);
+        }
+
+        // If still doesn't exist, create a new thing
+        if (!thing) {
+            thing = createThing({ url: mainSubject });
+        }
+
+        // Check if the contact is already in the knows list
+        const existingKnows = getUrlAll(thing, FOAF_KNOWS);
+        if (existingKnows.includes(contactWebId)) {
+            // Contact already exists, no need to add
+            return;
+        }
+
+        // Add the foaf:knows relationship
+        thing = addUrl(thing, FOAF_KNOWS, contactWebId as UrlString);
+
+        // Update the dataset
+        const updatedDataset = setThing(dataset, thing);
+
+        // Save the updated dataset
+        await saveSolidDatasetAt(profileUrl, updatedDataset, { fetch });
+    } catch (error) {
+        console.error("Failed to add contact to profile:", error);
+        throw error;
+    }
+}