diff --git a/client/app/src/main/java/com/birdthedeveloper/prometheus/android/prometheus/android/exporter/HomeActivity.kt b/client/app/src/main/java/com/birdthedeveloper/prometheus/android/prometheus/android/exporter/HomeActivity.kt
index 6f43667..b7fc921 100644
--- a/client/app/src/main/java/com/birdthedeveloper/prometheus/android/prometheus/android/exporter/HomeActivity.kt
+++ b/client/app/src/main/java/com/birdthedeveloper/prometheus/android/prometheus/android/exporter/HomeActivity.kt
@@ -211,4 +211,14 @@ private fun PushProxPage(
             )
         }
     }
-}
\ No newline at end of file
+}
+
+//TODO asap: 4 screens: loading, file error, file loaded, file missing - already implemented
+
+@Composable
+private fun LoadingPage(){
+    val progress : Float by remember { mutableStateOf(0.0f) }
+    //TODO finish this thing
+}
+//TODO
+//https://foso.github.io/Jetpack-Compose-Playground/material/circularprogressindicator/
\ No newline at end of file
diff --git a/client/app/src/main/java/com/birdthedeveloper/prometheus/android/prometheus/android/exporter/MainActivity.kt b/client/app/src/main/java/com/birdthedeveloper/prometheus/android/prometheus/android/exporter/MainActivity.kt
index 1ccd5db..d4713cc 100644
--- a/client/app/src/main/java/com/birdthedeveloper/prometheus/android/prometheus/android/exporter/MainActivity.kt
+++ b/client/app/src/main/java/com/birdthedeveloper/prometheus/android/prometheus/android/exporter/MainActivity.kt
@@ -30,22 +30,11 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import java.io.StringWriter
 
+//TODO
 //https://www.geeksforgeeks.org/how-to-launch-an-application-automatically-on-system-boot-up-in-android/
 
-// reference android app architecture
-//https://github.dev/google-developer-training/basic-android-kotlin-compose-training-unscramble
-
-
-// reference for sharing the view model accross whole application
 class MainActivity : ComponentActivity() {
 
-    private val collectorRegistry: CollectorRegistry = CollectorRegistry()
-    private lateinit var metricsEngine: MetricsEngine
-    private lateinit var customExporter: AndroidCustomExporter
-
-    private var pushProxStarted : Boolean = false
-    private lateinit var pushProxClient : PushProxClient
-
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
@@ -81,21 +70,13 @@ class MainActivity : ComponentActivity() {
                     promViewModel = promViewModel,
                 )
             }
-            composable("homepage") { HomePage(navController = navController, promViewModel = promViewModel) }
+            composable("homepage") {
+                HomePage(
+                    navController = navController,
+                    promViewModel = promViewModel
+                )
+            }
             composable("license") { LicensePage(navController = navController)}
         }
-    }}
-
-//    private fun initialize (){
-//        metricsEngine = MetricsEngine(this.applicationContext)
-//        customExporter = AndroidCustomExporter(metricsEngine).register(collectorRegistry)
-//    }
-//
-//    private suspend fun reallyCollectMetrics() : String {
-//        delay(500)
-//        val writer = StringWriter()
-//        TextFormat.write004(writer, collectorRegistry.metricFamilySamples())
-//        return writer.toString()
-//    }
-
-
+    }
+}
diff --git a/client/app/src/main/java/com/birdthedeveloper/prometheus/android/prometheus/android/exporter/PromViewModel.kt b/client/app/src/main/java/com/birdthedeveloper/prometheus/android/prometheus/android/exporter/PromViewModel.kt
index 3c0c35a..d71baa3 100644
--- a/client/app/src/main/java/com/birdthedeveloper/prometheus/android/prometheus/android/exporter/PromViewModel.kt
+++ b/client/app/src/main/java/com/birdthedeveloper/prometheus/android/prometheus/android/exporter/PromViewModel.kt
@@ -11,6 +11,13 @@ import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.update
 import java.io.StringWriter
 
+enum class ConfigFileState {
+    LOADING,
+    ERROR, // file not found or was not parsed
+    MISSING,
+    SUCCESS
+}
+
 data class PromUiState(
     val tabIndex : Int = 0,
     val serverTurnedOn : Boolean = false,
@@ -18,6 +25,7 @@ data class PromUiState(
     val serverPort : Int? = null, // if null, use default port
     val fqdn : String = "",
     val pushProxURL : String = "",
+    val configFileState : ConfigFileState = ConfigFileState.LOADING,
 )
 
 private val TAG : String = "PROMVIEWMODEL"