optimizations

interface/src/SignIn.tsx

@@ -1,4 +1,4 @@
-import { useContext, useState } from 'react';
+import { memo, useCallback, useContext, useMemo, useState } from 'react';
 import { toast } from 'react-toastify';
 
 import ForwardIcon from '@mui/icons-material/Forward';
@@ -19,7 +19,7 @@ import type { SignInRequest } from 'types';
 import { onEnterCallback, updateValue } from 'utils';
 import { SIGN_IN_REQUEST_VALIDATOR, validate } from 'validators';
 
-const SignIn = () => {
+const SignIn = memo(() => {
   const authenticationContext = useContext(AuthenticationContext);
 
   const { LL } = useI18nContext();
@@ -42,9 +42,18 @@ const SignIn = () => {
     }
   });
 
-  const updateLoginRequestValue = updateValue(setSignInRequest);
+  // Memoize callback to prevent recreation on every render
+  const updateLoginRequestValue = useMemo(
+    () =>
+      updateValue((updater) =>
+        setSignInRequest(
+          updater as unknown as (prevState: SignInRequest) => SignInRequest
+        )
+      ),
+    []
+  );
 
-  const signIn = async () => {
+  const signIn = useCallback(async () => {
     await callSignIn(signInRequest).catch((event: Error) => {
       if (event.message === 'Unauthorized') {
         toast.warning(LL.INVALID_LOGIN());
@@ -53,9 +62,9 @@ const SignIn = () => {
       }
       setProcessing(false);
     });
-  };
+  }, [callSignIn, signInRequest, LL]);
 
-  const validateAndSignIn = async () => {
+  const validateAndSignIn = useCallback(async () => {
     setProcessing(true);
     SIGN_IN_REQUEST_VALIDATOR.messages({
       required: LL.IS_REQUIRED('%s')
@@ -67,9 +76,10 @@ const SignIn = () => {
       setFieldErrors(error as ValidateFieldsError);
       setProcessing(false);
     }
-  };
+  }, [signInRequest, signIn, LL]);
 
-  const submitOnEnter = onEnterCallback(signIn);
+  // Memoize callback to prevent recreation on every render
+  const submitOnEnter = useMemo(() => onEnterCallback(signIn), [signIn]);
 
   return (
     <Box
@@ -144,6 +154,6 @@ const SignIn = () => {
       </Paper>
     </Box>
   );
-};
+});
 
 export default SignIn;