Compute correct root path for Solo users (#10993)

- Change paths for cloud assets for users on Solo plan to be `enso://User/<username>/<path>` instead of the legacy `enso://<username>/<path>`

# Important Notes
None

(cherry picked from commit c87053d600)

app/dashboard/src/App.tsx

@@ -543,7 +543,7 @@ function LocalBackendPathSynchronizer() {
   const localBackend = useLocalBackend()
   if (localBackend) {
     if (localRootDirectory != null) {
-      localBackend.rootPath = Path(localRootDirectory)
+      localBackend.setRootPath(Path(localRootDirectory))
     } else {
       localBackend.resetRootPath()
     }

app/dashboard/src/layouts/AssetsTable.tsx

@@ -533,7 +533,7 @@ export default function AssetsTable(props: AssetsTableProps) {
   const isLoading = directories.rootDirectory.isLoading
 
   const assetTree = React.useMemo(() => {
-    const rootPath = 'rootPath' in category ? category.rootPath : backend.rootPath
+    const rootPath = 'rootPath' in category ? category.rootPath : backend.rootPath(user)
 
     // If the root directory is not loaded, then we cannot render the tree.
     // Return null, and wait for the root directory to load.
@@ -634,13 +634,14 @@ export default function AssetsTable(props: AssetsTableProps) {
       rootId,
     )
   }, [
-    directories,
+    category,
+    backend,
+    user,
     rootDirectoryContent,
     rootDirectory,
     rootParentDirectoryId,
-    backend.rootPath,
     rootDirectoryId,
-    category,
+    directories.directories,
   ])
 
   const filter = React.useMemo(() => {

app/dashboard/src/layouts/CategorySwitcher.tsx

@@ -211,7 +211,7 @@ function CategorySwitcherItem(props: InternalCategorySwitcherItemProps) {
         case 'local-directory': {
           if (category.type === 'local' || category.type === 'local-directory') {
             const parentDirectory =
-              category.type === 'local' ? localBackend?.rootPath : category.rootPath
+              category.type === 'local' ? localBackend?.rootPath() : category.rootPath
             invariant(parentDirectory != null, 'The Local backend is missing a root directory.')
             const newParentId = newDirectoryId(parentDirectory)
             dispatchAssetEvent({

app/dashboard/src/layouts/Settings.tsx

@@ -69,7 +69,7 @@ export default function Settings() {
   const updateLocalRootPath = useEventCallback((value: string) => {
     setLocalRootDirectory(value)
     if (localBackend) {
-      localBackend.rootPath = projectManager.Path(value)
+      localBackend.setRootPath(projectManager.Path(value))
     }
   })
   const resetLocalRootPath = useEventCallback(() => {

app/dashboard/src/layouts/Settings/settingsData.tsx

@@ -238,7 +238,7 @@ export const SETTINGS_TAB_DATA: Readonly<Record<SettingsTabType, SettingsTabData
           {
             type: SettingsEntryType.input,
             nameId: 'localRootPathSettingsInput',
-            getValue: (context) => context.localBackend?.rootPath ?? '',
+            getValue: (context) => context.localBackend?.rootPath() ?? '',
             setValue: async (context, value) => {
               context.updateLocalRootPath(value)
               await Promise.resolve()

app/dashboard/src/services/LocalBackend.ts

@@ -104,12 +104,12 @@ export default class LocalBackend extends Backend {
   }
 
   /** Get the root directory of this Backend. */
-  get rootPath() {
+  override rootPath() {
     return this.projectManager.rootDirectory
   }
 
   /** Set the root directory of this Backend. */
-  set rootPath(value) {
+  setRootPath(value: projectManager.Path) {
     this.projectManager.rootDirectory = value
   }
 
@@ -125,7 +125,7 @@ export default class LocalBackend extends Backend {
 
   /** Return the ID of the root directory. */
   override rootDirectoryId(
-    _user: backend.User | null,
+    _user: backend.User,
     _organization: backend.OrganizationInfo | null,
     rootDirectory: backend.Path | null | undefined,
   ): backend.DirectoryId {

app/dashboard/src/services/RemoteBackend.ts

@@ -127,7 +127,6 @@ interface RemoteBackendPostOptions {
 /** Class for sending requests to the Cloud backend API endpoints. */
 export default class RemoteBackend extends Backend {
   readonly type = backend.BackendType.remote
-  readonly rootPath = 'enso://'
   private defaultVersions: Partial<Record<backend.VersionType, DefaultVersionInfo>> = {}
   private user: object.Mutable<backend.User> | null = null
 
@@ -174,16 +173,31 @@ export default class RemoteBackend extends Backend {
     }
   }
 
-  /** Return the ID of the root directory. */
-  override rootDirectoryId(
-    user: backend.User | null,
-    organization: backend.OrganizationInfo | null,
-  ): backend.DirectoryId | null {
-    switch (user?.plan ?? null) {
-      case null:
+  /** The path to the root directory of this {@link Backend}. */
+  override rootPath(user: backend.User) {
+    switch (user.plan) {
+      case undefined:
       case backend.Plan.free:
       case backend.Plan.solo: {
-        return user?.rootDirectoryId ?? null
+        return `enso://Users/${user.name}`
+      }
+      case backend.Plan.team:
+      case backend.Plan.enterprise: {
+        return 'enso://'
+      }
+    }
+  }
+
+  /** Return the ID of the root directory. */
+  override rootDirectoryId(
+    user: backend.User,
+    organization: backend.OrganizationInfo | null,
+  ): backend.DirectoryId | null {
+    switch (user.plan) {
+      case undefined:
+      case backend.Plan.free:
+      case backend.Plan.solo: {
+        return user.rootDirectoryId
       }
       case backend.Plan.team:
       case backend.Plan.enterprise: {

app/ide-desktop/common/src/services/Backend.ts

@@ -1311,10 +1311,10 @@ export default abstract class Backend {
   abstract readonly type: BackendType
 
   /** The path to the root directory of this {@link Backend}. */
-  abstract readonly rootPath: string
+  abstract rootPath(user: User): string
   /** Return the ID of the root directory, if known. */
   abstract rootDirectoryId(
-    user: User | null,
+    user: User,
     organization: OrganizationInfo | null,
     localRootDirectory: Path | null | undefined,
   ): DirectoryId | null