NostrSigninModal: hold accountId instead of username in the state

src/api/hooks/accounts/useAccountLookup.ts

@@ -22,7 +22,7 @@ function useAccountLookup(acct: string | undefined, opts: UseAccountLookupOpts =
 
   const { entity: account, isUnauthorized, ...result } = useEntityLookup<Account>(
     Entities.ACCOUNTS,
-    (account) => account.acct.toLowerCase() === acct?.toLowerCase() || account.nostr.npub === acct,
+    (account) => account.acct.toLowerCase() === acct?.toLowerCase(),
     () => api.get(`/api/v1/accounts/lookup?acct=${acct}`),
     { schema: accountSchema, enabled: !!acct },
   );

src/features/ui/components/modals/nostr-signin-modal/nostr-signin-modal.tsx

@@ -16,7 +16,7 @@ interface INostrSigninModal {
 const NostrSigninModal: React.FC<INostrSigninModal> = ({ onClose }) => {
   const [step, setStep] = useState(0);
 
-  const [username, setUsername] = useState('');
+  const [accountId, setAccountId] = useState<string | undefined>();
 
   const handleClose = () => {
     onClose('NOSTR_SIGNIN');
@@ -27,11 +27,11 @@ const NostrSigninModal: React.FC<INostrSigninModal> = ({ onClose }) => {
       case 0:
         return <ExtensionStep setStep={setStep} />;
       case 1:
-        return <IdentityStep username={username} setUsername={setUsername} setStep={setStep} />;
+        return <IdentityStep setAccountId={setAccountId} setStep={setStep} />;
       case 2:
         return <KeyStep setStep={setStep} />;
       case 3:
-        return <AccountStep username={username} />;
+        return <AccountStep accountId={accountId!} />;
       case 4:
         return <RegisterStep />;
     }

src/features/ui/components/modals/nostr-signin-modal/steps/account-step.tsx

@@ -1,16 +1,16 @@
 import { NSchema as n } from 'nspec';
 import React, { useMemo } from 'react';
 
-import { useAccountLookup } from 'soapbox/api/hooks';
+import { useAccount } from 'soapbox/api/hooks';
 import { Avatar, Text, Stack, Emoji, Button, Tooltip } from 'soapbox/components/ui';
 import { useInstance } from 'soapbox/hooks';
 
 interface IAccountStep {
-  username: string;
+  accountId: string;
 }
 
-const AccountStep: React.FC<IAccountStep> = ({ username }) => {
-  const { account } = useAccountLookup(username);
+const AccountStep: React.FC<IAccountStep> = ({ accountId }) => {
+  const { account } = useAccount(accountId);
   const instance = useInstance();
 
   const isBech32 = useMemo(

src/features/ui/components/modals/nostr-signin-modal/steps/identity-step.tsx

@@ -13,16 +13,16 @@ import EmojiGraphic from '../components/emoji-graphic';
 import NostrExtensionIndicator from '../components/nostr-extension-indicator';
 
 interface IIdentityStep {
-  username: string;
-  setUsername(username: string): void;
+  setAccountId(accountId: string): void;
   setStep(step: number): void;
 }
 
-const IdentityStep: React.FC<IIdentityStep> = ({ username, setUsername, setStep }) => {
+const IdentityStep: React.FC<IIdentityStep> = ({ setAccountId, setStep }) => {
   const dispatch = useAppDispatch();
 
   const [loading, setLoading] = useState(false);
   const [notFound, setNotFound] = useState(false);
+  const [username, setUsername] = useState('');
 
   const handleChangeUsername: React.ChangeEventHandler<HTMLInputElement> = (e) => {
     setNotFound(false);
@@ -33,7 +33,8 @@ const IdentityStep: React.FC<IIdentityStep> = ({ username, setUsername, setStep
     setLoading(true);
 
     await dispatch(accountLookup(username))
-      .then(() => {
+      .then((account) => {
+        setAccountId(account.id);
         setStep(3);
         setNotFound(false);
         setLoading(false);