allow to change name

src/main.rs

@@ -90,6 +90,30 @@ impl Backend {
         let lang = language::language(&cookies, headers);
         (cookies, Req { client, lang })
     }
+
+    async fn set_client_name(&self, client: &Client, name: &str) -> Result<(), String> {
+        if name.len() > 25 {
+            return Err("Maximum 25 chars are allowed".into());
+        }
+        if name.len() < 3 {
+            return Err("Minimum of 3 chars needed".into());
+        }
+
+        match self {
+            Backend::Sqlite(db) => {
+                sqlx::query!(
+                    "UPDATE client SET name = ? WHERE uuid = ?;",
+                    name,
+                    client.uuid
+                )
+                .execute(db)
+                .await
+                .unwrap();
+            }
+        }
+
+        Ok(())
+    }
 }
 
 #[tokio::main]