Get feedback on request

app/src/main/java/org/communiquons/dccaggregator/activities/CertsManager.kt

@@ -40,6 +40,8 @@ class CertsManager : BaseActivity() {
 
     private val TAG = CertsManager::class.java.canonicalName
 
+    private var loadingDialog: AlertDialog? = null
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
@@ -61,6 +63,17 @@ class CertsManager : BaseActivity() {
                 processGivenCertificate(this)
         }
 
+        // Follow request progress
+        viewModel.reqStatus.observe(this) {
+            if (it == "") return@observe
+
+            loadingDialog?.cancel()
+            if (it != null)
+                Toast.makeText(this, it, Toast.LENGTH_SHORT).show()
+            else
+                finish()
+        }
+
         refreshList()
     }
 
@@ -160,18 +173,14 @@ class CertsManager : BaseActivity() {
     }
 
     private fun generateNewCertificate() {
-        val dialog = AlertDialog.Builder(this)
+        loadingDialog = AlertDialog.Builder(this)
             .setView(R.layout.generating_dialog)
             .show().apply {
                 setCancelable(false)
                 setCanceledOnTouchOutside(false)
             }
 
-        // TODO: hum hum
         viewModel.requestCertificate()
-
-        // Close dialog
-        dialog.cancel()
     }
 
 }

app/src/main/java/org/communiquons/dccaggregator/viewmodel/CertsManagerViewModel.kt

@@ -1,6 +1,8 @@
 package org.communiquons.dccaggregator.viewmodel
 
 import android.util.Log
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import kotlinx.coroutines.Dispatchers
@@ -9,26 +11,35 @@ import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import org.communiquons.dccaggregator.apis.TousAntiCovidAPIClient
 import org.communiquons.dccaggregator.helper.CertificatesList
-import java.lang.Exception
 
 class CertsManagerViewModel() : ViewModel() {
 
     lateinit var certsManager: CertificatesList
 
+    private val _reqStatus = MutableLiveData<String?>("")
+    val reqStatus: LiveData<String?> = _reqStatus
+
     fun requestCertificate(): Job {
         return viewModelScope.launch(Dispatchers.IO) {
             try {
-                return@launch withContext(Dispatchers.IO) {
+                withContext(Dispatchers.IO) {
                     // First, fetch current signing key
                     val config = TousAntiCovidAPIClient().getConfig()
-                    Log.d("testpk", config.activityPassGenerationServerPublicKey)
+                    Log.d("Server Primary Key", config.activityPassGenerationServerPublicKey)
+
+                    throw java.lang.Exception("TODO: send request")
+
+                    withContext(Dispatchers.Main) {
+                        _reqStatus.value = null
+                    }
                 }
             } catch (e: Exception) {
                 e.printStackTrace()
-                // return false
-            }
 
-            // return true
+                withContext(Dispatchers.Main) {
+                    _reqStatus.value = e.message ?: "Request failed!"
+                }
+            }
         }
     }