added auth validate method

app/src/main/java/com/biganto/visual/roompark/di/dagger/ContextModule.kt

  package com.biganto.visual.roompark.di.dagger
 
 import com.biganto.visual.androidplayer.data.repository.local.ILocalStore
+import com.biganto.visual.roompark.data.local.UserState
 import com.biganto.visual.roompark.data.repository.api.IRoomParkApi
 import com.biganto.visual.roompark.data.repository.db.IDb
 import com.biganto.visual.roompark.data.repository.mapper.fromRaw
@@ -56,6 +57,13 @@ class AppModule() {
           .flatMap{ db.upsertUser(it)  }
           .doOnNext { local.setRecentUser(it.uuid.toString()) }
           .map(::fromEntity)
+
+  override fun validateAuthState(): Observable<Boolean> = local.recentUser()
+      .map { when(it){
+          is UserState.NotAuthenticated -> false
+          is UserState.Authenticated -> true
+          else ->false
+      } }
  }
 
 @Module()

app/src/main/java/com/biganto/visual/roompark/domain/contract/AuthContract.kt

@@ -11,4 +11,5 @@ import io.reactivex.Observable
 interface AuthContract {
     fun signIn(email:String,password:String) : Observable<AuthInfoModel>
     fun signOut() : Completable
+    fun validateAuthState(): Observable<Boolean>
 }
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