Fix: math corrected with all rabbit suggestion

src/app/rate_user.rs

@@ -141,21 +141,20 @@ pub async fn update_user_reputation_action(
 
     // Update user reputation
     // Going on with calculation
-    let old_rating = user_to_vote.total_rating;
     // increment first
     user_to_vote.total_reviews += 1;
-    // recompute rating
-    let new_rating = old_rating + (rating as i64 - old_rating) / (user_to_vote.total_reviews);
-
+    // Store last rating
     user_to_vote.last_rating = rating.into();
+    // recompute rating
+    user_to_vote.total_rating =
+        ((user_to_vote.total_rating * (user_to_vote.total_reviews - 1) as f64) + rating as f64)
+            / user_to_vote.total_reviews as f64;
 
-    // Assign new total rating to review
-    user_to_vote.total_rating = new_rating;
     // Create new rating event
     let reputation_event = Rating::new(
         user_to_vote.total_reviews as u64,
         user_to_vote.total_rating as f64,
-        rating as u8,
+        user_to_vote.last_rating as u8,
         user_to_vote.min_rating as u8,
         user_to_vote.max_rating as u8,
     )

src/db.rs

@@ -393,7 +393,7 @@ pub async fn update_user_rating(
     min_rating: i64,
     max_rating: i64,
     total_reviews: i64,
-    total_rating: i64,
+    total_rating: f64,
 ) -> anyhow::Result<User> {
     // Validate public key format (32-bytes hex)
     if !public_key.chars().all(|c| c.is_ascii_hexdigit()) || public_key.len() != 64 {
@@ -414,7 +414,7 @@ pub async fn update_user_rating(
     if total_reviews < 0 {
         return Err(anyhow::anyhow!("Invalid total reviews"));
     }
-    if total_rating < 0 || total_rating > total_reviews * 5 {
+    if total_rating < 0.0 || total_rating > (total_reviews * 5) as f64 {
         return Err(anyhow::anyhow!("Invalid total rating"));
     }
     if let Ok(user) = sqlx::query_as::<_, User>(