Always verify sessions before login

Also avoid auto-login if saved account is anonymous and invalid
as this results in fetching new account every time app is restarted
as long as the validation fails resulting in rate-limiting.

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

app/src/main/java/com/aurora/store/data/State.kt

@@ -41,5 +41,6 @@ sealed class AuthState {
     object SignedOut : AuthState()
     object Valid : AuthState()
     object Fetching: AuthState()
+    object InValid: AuthState()
     data class Status(val status: String?) : AuthState()
 }

app/src/main/java/com/aurora/store/view/ui/account/AccountActivity.kt

@@ -91,7 +91,11 @@ class AccountActivity : BaseActivity() {
                     updateStatus(getString(R.string.requesting_new_session))
                 }
                 AuthState.Valid -> {
+                    updateContents()
+                }
 
+                AuthState.InValid -> {
+                    updateStatus(getString(R.string.failed_validating_account))
                 }
 
                 AuthState.Available -> {
@@ -105,7 +109,7 @@ class AccountActivity : BaseActivity() {
                 }
 
                 AuthState.SignedIn -> {
-                    updateContents()
+                    VM.observe()
                 }
 
                 AuthState.SignedOut -> {

app/src/main/java/com/aurora/store/view/ui/splash/SplashActivity.kt

@@ -102,6 +102,11 @@ class SplashActivity : BaseActivity() {
                     moveToContent()
                 }
 
+                AuthState.InValid -> {
+                    updateStatus(getString(R.string.failed_validating_account))
+                    updateActionLayout(true)
+                }
+
                 AuthState.Available -> {
                     updateStatus(getString(R.string.session_verifying))
                     updateActionLayout(false)
@@ -113,7 +118,7 @@ class SplashActivity : BaseActivity() {
                 }
 
                 AuthState.SignedIn -> {
-                    moveToContent()
+                    VM.observe()
                 }
 
                 AuthState.SignedOut -> {

app/src/main/java/com/aurora/store/viewmodel/auth/AuthViewModel.kt

@@ -215,7 +215,7 @@ class AuthViewModel(application: Application) : BaseAndroidViewModel(application
                                 buildGoogleAuthData(email, aasToken)
                             }
                             AccountType.ANONYMOUS -> {
-                                buildAnonymousAuthData()
+                                liveData.postValue(AuthState.InValid)
                             }
                         }
                     }