Improvements to auto-mentioning users from their profiles (#1556)

* Don't automatically mention users with invalid handles

* don't mention when using did urls

* resolve profile from cache

* a little clearer

---------

Co-authored-by: Samuel Newman <mozzius@protonmail.com>

src/view/screens/Profile.tsx

@@ -91,7 +91,10 @@ export const ProfileScreen = withAuthRequired(
     const onPressCompose = React.useCallback(() => {
       track('ProfileScreen:PressCompose')
       const mention =
-        uiState.profile.handle === store.me.handle ? '' : uiState.profile.handle
+        uiState.profile.handle === store.me.handle ||
+        uiState.profile.handle === 'handle.invalid'
+          ? undefined
+          : uiState.profile.handle
       store.shell.openComposer({mention})
     }, [store, track, uiState])
     const onSelectView = React.useCallback(

src/view/shell/desktop/LeftNav.tsx

@@ -185,20 +185,33 @@ function ComposeBtn() {
   const {getState} = useNavigation()
   const {isTablet} = useWebMediaQueries()
 
-  const getProfileHandle = () => {
+  const getProfileHandle = async () => {
     const {routes} = getState()
     const currentRoute = routes[routes.length - 1]
+
     if (currentRoute.name === 'Profile') {
-      const {name: handle} =
+      let handle: string | undefined = (
         currentRoute.params as CommonNavigatorParams['Profile']
-      if (handle === store.me.handle) return undefined
+      ).name
+
+      if (handle.startsWith('did:')) {
+        const cached = await store.profiles.cache.get(handle)
+        const profile = cached ? cached.data : undefined
+        // if we can't resolve handle, set to undefined
+        handle = profile?.handle || undefined
+      }
+
+      if (!handle || handle === store.me.handle || handle === 'handle.invalid')
+        return undefined
+
       return handle
     }
+
     return undefined
   }
 
-  const onPressCompose = () =>
-    store.shell.openComposer({mention: getProfileHandle()})
+  const onPressCompose = async () =>
+    store.shell.openComposer({mention: await getProfileHandle()})
 
   if (isTablet) {
     return null