Config UI: add provider auth subject to login errors (#25342)

api/error.go

@@ -18,9 +18,6 @@ var ErrSponsorRequired = errors.New("sponsorship required, see https://docs.evcc
 // ErrMissingCredentials indicates that user/password are missing
 var ErrMissingCredentials = backoff.Permanent(errors.New("missing user/password credentials"))
 
-// ErrLoginRequired indicates that retrieving tokens credentials waits for login
-var ErrLoginRequired = backoff.Permanent(errors.New("login required"))
-
 // ErrMissingToken indicates that access/refresh tokens are missing
 var ErrMissingToken = backoff.Permanent(errors.New("missing token credentials"))
 
@@ -30,6 +27,22 @@ var ErrOutdated = errors.New("outdated")
 // ErrTimeout is the error returned when a timeout happened
 var ErrTimeout error = errors.New("timeout")
 
+// LoginRequiredError creates a login error for given auth provider
+func LoginRequiredError(providerAuth string) error {
+	return backoff.Permanent(&ErrLoginRequired{
+		ProviderAuth: providerAuth,
+	})
+}
+
+// ErrLoginRequired indicates that retrieving tokens credentials waits for login
+type ErrLoginRequired struct {
+	ProviderAuth string
+}
+
+func (err *ErrLoginRequired) Error() string {
+	return "login required"
+}
+
 // ErrAsleep indicates that vehicle is asleep. Caller may chose to wake up the vehicle and retry.
 var ErrAsleep error = errAsleep{}