fix(usersettings): allow unset email and add more explicit email error message

server/routes/user/usersettings.ts

@@ -1,4 +1,5 @@
 import { ApiErrorCode } from '@server/constants/error';
+import { UserType } from '@server/constants/user';
 import { getRepository } from '@server/datasource';
 import { User } from '@server/entity/User';
 import { UserSettings } from '@server/entity/UserSettings';
@@ -99,11 +100,29 @@ userSettingsRoutes.post<
       });
     }
 
-    user.username = req.body.username;
     const oldEmail = user.email;
+    const oldUsername = user.username;
+    user.username = req.body.username;
     if (user.jellyfinUsername) {
       user.email = req.body.email || user.jellyfinUsername || user.email;
     }
+    // Edge case for local users, because they have no Jellyfin username to fall back on
+    // if the email is not provided
+    if (user.userType === UserType.LOCAL) {
+      if (req.body.email) {
+        user.email = req.body.email;
+        if (
+          !user.username &&
+          user.email !== oldEmail &&
+          !oldEmail.includes('@')
+        ) {
+          user.username = oldEmail;
+        }
+      } else if (req.body.username) {
+        user.email = oldUsername || user.email;
+        user.username = req.body.username;
+      }
+    }
 
     const existingUser = await userRepository.findOne({
       where: { email: user.email },

src/components/UserProfile/UserSettings/UserGeneralSettings/index.tsx

@@ -44,6 +44,8 @@ const messages = defineMessages(
     toastSettingsSuccess: 'Settings saved successfully!',
     toastSettingsFailure: 'Something went wrong while saving settings.',
     toastSettingsFailureEmail: 'This email is already taken!',
+    toastSettingsFailureEmailEmpty:
+      'Another user already has this username. You must set an email',
     region: 'Discover Region',
     regionTip: 'Filter content by regional availability',
     originallanguage: 'Discover Language',
@@ -138,7 +140,7 @@ const UserGeneralSettings = () => {
       </div>
       <Formik
         initialValues={{
-          displayName: data?.username ?? '',
+          displayName: data?.username !== user?.email ? data?.username : '',
           email: data?.email?.includes('@') ? data.email : '',
           discordId: data?.discordId ?? '',
           locale: data?.locale,
@@ -203,10 +205,23 @@ const UserGeneralSettings = () => {
               /* empty */
             }
             if (errorData?.message === ApiErrorCode.InvalidEmail) {
-              addToast(intl.formatMessage(messages.toastSettingsFailureEmail), {
-                autoDismiss: true,
-                appearance: 'error',
-              });
+              if (values.email) {
+                addToast(
+                  intl.formatMessage(messages.toastSettingsFailureEmail),
+                  {
+                    autoDismiss: true,
+                    appearance: 'error',
+                  }
+                );
+              } else {
+                addToast(
+                  intl.formatMessage(messages.toastSettingsFailureEmailEmpty),
+                  {
+                    autoDismiss: true,
+                    appearance: 'error',
+                  }
+                );
+              }
             } else {
               addToast(intl.formatMessage(messages.toastSettingsFailure), {
                 autoDismiss: true,
@@ -284,9 +299,9 @@ const UserGeneralSettings = () => {
                       name="displayName"
                       type="text"
                       placeholder={
-                        user?.username ||
                         user?.jellyfinUsername ||
-                        user?.plexUsername
+                        user?.plexUsername ||
+                        user?.email
                       }
                     />
                   </div>

src/i18n/locale/en.json

@@ -1094,7 +1094,7 @@
   "components.Setup.finishing": "Finishing…",
   "components.Setup.servertype": "Choose Server Type",
   "components.Setup.setup": "Setup",
-  "components.Setup.signin": "Sign in to your account",
+  "components.Setup.signin": "Sign In",
   "components.Setup.signinMessage": "Get started by signing in",
   "components.Setup.signinWithEmby": "Enter your Emby details",
   "components.Setup.signinWithJellyfin": "Enter your Jellyfin details",
@@ -1245,6 +1245,7 @@
   "components.UserProfile.UserSettings.UserGeneralSettings.seriesrequestlimit": "Series Request Limit",
   "components.UserProfile.UserSettings.UserGeneralSettings.toastSettingsFailure": "Something went wrong while saving settings.",
   "components.UserProfile.UserSettings.UserGeneralSettings.toastSettingsFailureEmail": "This email is already taken!",
+  "components.UserProfile.UserSettings.UserGeneralSettings.toastSettingsFailureEmailEmpty": "Another user already has this username. You must set an email",
   "components.UserProfile.UserSettings.UserGeneralSettings.toastSettingsSuccess": "Settings saved successfully!",
   "components.UserProfile.UserSettings.UserGeneralSettings.user": "User",
   "components.UserProfile.UserSettings.UserGeneralSettings.validationDiscordId": "You must provide a valid Discord user ID",