Refactor code structure and remove redundant changes

src-old/hooks/useProfile.tsx

@@ -0,0 +1,64 @@
+import { useQuery, useQueryClient } from '@tanstack/react-query';
+import { supabase } from '@/lib/supabaseClient';
+import { Profile } from '@/types/database';
+import { getErrorMessage } from '@/lib/errorHandler';
+
+export function useProfile(userId: string | undefined) {
+  const queryClient = useQueryClient();
+
+  const query = useQuery({
+    queryKey: ['profile', userId],
+    queryFn: async () => {
+      if (!userId) return null;
+      
+      // Get current viewer ID
+      const { data: { user } } = await supabase.auth.getUser();
+      const viewerId = user?.id || null;
+      
+      // Use get_filtered_profile RPC for privacy-aware field filtering
+      const { data, error } = await supabase.rpc('get_filtered_profile', {
+        _profile_user_id: userId,
+        _viewer_id: viewerId || ''
+      });
+      
+      if (error) {
+        throw error;
+      }
+      
+      if (!data) return null;
+      
+      // Type the JSONB response properly
+      const profileData = data as unknown as Profile;
+      
+      // Fetch location separately if location_id is present and visible
+      if (profileData.location_id) {
+        const { data: location } = await supabase
+          .from('locations')
+          .select('id, name, city, state_province, country, timezone')
+          .eq('id', profileData.location_id)
+          .single();
+        
+        if (location) {
+          profileData.location = location;
+        }
+      }
+      
+      return profileData;
+    },
+    enabled: !!userId,
+    staleTime: 5 * 60 * 1000, // 5 minutes
+    refetchOnWindowFocus: false,
+    retry: 2,
+  });
+
+  const refreshProfile = () => {
+    if (userId) {
+      queryClient.invalidateQueries({ queryKey: ['profile', userId] });
+    }
+  };
+
+  return {
+    ...query,
+    refreshProfile,
+  };
+}