Driver admin complete

- empty view for no users
 - edit user identifier
 - test for driver admin added

app/src/main/java/h_mal/appttude/com/driver/application/BaseApplication.kt

@@ -4,7 +4,6 @@ import android.app.Application
 import h_mal.appttude.com.driver.data.FirebaseAuthSource
 import h_mal.appttude.com.driver.data.FirebaseDatabaseSource
 import h_mal.appttude.com.driver.data.FirebaseStorageSource
-import h_mal.appttude.com.driver.data.prefs.PreferenceProvider
 import org.kodein.di.Kodein
 import org.kodein.di.KodeinAware
 import org.kodein.di.android.x.androidXModule

app/src/main/java/h_mal/appttude/com/driver/base/BaseFirebaseAdapter.kt

@@ -8,15 +8,20 @@ import androidx.recyclerview.widget.RecyclerView.ViewHolder
 import androidx.viewbinding.ViewBinding
 import com.firebase.ui.database.FirebaseRecyclerAdapter
 import com.firebase.ui.database.FirebaseRecyclerOptions
+import com.google.firebase.database.DatabaseError
 import h_mal.appttude.com.driver.utils.GenericsHelper.getGenericClassAt
 import h_mal.appttude.com.driver.utils.GenericsHelper.inflateBindingByType
 import java.nio.ByteBuffer
 
 
-open class BaseFirebaseAdapter<T: Any, VB : ViewBinding>(options: FirebaseRecyclerOptions<T>, private val layoutInflater: LayoutInflater):
+open class BaseFirebaseAdapter<T : Any, VB : ViewBinding>(
+    options: FirebaseRecyclerOptions<T>,
+    private val layoutInflater: LayoutInflater
+) :
     FirebaseRecyclerAdapter<T, CustomViewHolder<VB>>(options) {
 
-    private val connectivityManager = layoutInflater.context.getSystemService(ConnectivityManager::class.java) as ConnectivityManager
+    private val connectivityManager =
+        layoutInflater.context.getSystemService(ConnectivityManager::class.java) as ConnectivityManager
 
     private var _binding: VB? = null
     val binding: VB
@@ -32,7 +37,7 @@ open class BaseFirebaseAdapter<T: Any, VB : ViewBinding>(options: FirebaseRecycl
         return CustomViewHolder(requireNotNull(_binding))
     }
 
-    override fun onBindViewHolder(holder: CustomViewHolder<VB>, position: Int, model: T) { }
+    override fun onBindViewHolder(holder: CustomViewHolder<VB>, position: Int, model: T) {}
 
     override fun getItemId(position: Int): Long {
         return snapshots.getSnapshot(position).key?.toByteArray()
@@ -50,6 +55,26 @@ open class BaseFirebaseAdapter<T: Any, VB : ViewBinding>(options: FirebaseRecycl
     }
 
     open fun connectionLost() {}
+    override fun onDataChanged() {
+        super.onDataChanged()
+        if (itemCount == 0) emptyList()
+    }
+    override fun onError(error: DatabaseError) {
+        super.onError(error)
+        when (error.code) {
+            DatabaseError.PERMISSION_DENIED -> permissionsDenied()
+            DatabaseError.DISCONNECTED, DatabaseError.UNAVAILABLE, DatabaseError.NETWORK_ERROR -> noConnection()
+            DatabaseError.EXPIRED_TOKEN, DatabaseError.OPERATION_FAILED, DatabaseError.INVALID_TOKEN, DatabaseError.MAX_RETRIES -> authorizationError()
+            else -> cannotRetrieve()
+        }
+
+    }
+
+    open fun permissionsDenied() {}
+    open fun noConnection() {}
+    open fun cannotRetrieve() {}
+    open fun authorizationError() {}
+    open fun emptyList() {}
 }
 
-class CustomViewHolder<VB : ViewBinding>(val viewBinding: VB): ViewHolder(viewBinding.root)
+class CustomViewHolder<VB : ViewBinding>(val viewBinding: VB) : ViewHolder(viewBinding.root)

app/src/main/java/h_mal/appttude/com/driver/base/BaseViewModel.kt

@@ -20,6 +20,9 @@ abstract class BaseViewModel : ViewModel() {
         uiState.postValue(ViewState.HasError(Event(error)))
     }
 
+    /*
+     * All in one function for trying an operation and handling its start and failure
+     */
     suspend fun doTryOperation(
         defaultErrorMessage: String?,
         operation: suspend () -> Unit

app/src/main/java/h_mal/appttude/com/driver/data/FirebaseAuthSource.kt

@@ -2,7 +2,11 @@ package h_mal.appttude.com.driver.data
 
 import android.net.Uri
 import com.google.android.gms.tasks.Task
-import com.google.firebase.auth.*
+import com.google.firebase.auth.AuthResult
+import com.google.firebase.auth.EmailAuthProvider
+import com.google.firebase.auth.FirebaseAuth
+import com.google.firebase.auth.FirebaseUser
+import com.google.firebase.auth.UserProfileChangeRequest
 import java.io.IOException
 
 class FirebaseAuthSource : FirebaseAuthentication {

app/src/main/java/h_mal/appttude/com/driver/utils/FirebaseException.kt

@@ -0,0 +1,55 @@
+package h_mal.appttude.com.driver.utils
+
+import com.google.firebase.database.DatabaseError
+
+class FirebaseException(
+    private val databaseError: DatabaseError
+) : RuntimeException(databaseError.message, databaseError.toException()) {
+
+    fun getCode() = databaseError.code
+    fun getDetails() = databaseError.details
+
+    fun getErrorStatus(): Status {
+        return Status.getByScore(getCode()) ?: Status.UNKNOWN_ERROR
+    }
+
+    enum class Status(private val code: Int) {
+        DATA_STALE(-1),
+        /** The server indicated that this operation failed  */
+        OPERATION_FAILED(-2),
+        /** This client does not have permission to perform this operation  */
+        PERMISSION_DENIED(-3),
+        /** The operation had to be aborted due to a network disconnect  */
+        DISCONNECTED(-4),
+        /** The supplied auth token has expired  */
+        EXPIRED_TOKEN (-6),
+        /**
+         * The specified authentication token is invalid. This can occur when the token is malformed,
+         * expired, or the secret that was used to generate it has been revoked.
+         */
+        INVALID_TOKEN(-7),
+        /** The transaction had too many retries  */
+        MAX_RETRIES(-8),
+        /** The transaction was overridden by a subsequent set  */
+        OVERRIDDEN_BY_SET(-9),
+        /** The service is unavailable  */
+        UNAVAILABLE(-10),
+        /** An exception occurred in user code  */
+        USER_CODE_EXCEPTION(-11),
+        /** The operation could not be performed due to a network error.  */
+        NETWORK_ERROR(-24),
+        /** The write was canceled locally  */
+        WRITE_CANCELED(-25),
+        /**
+         * An unknown error occurred. Please refer to the error message and error details for more
+         * information.
+         */
+        UNKNOWN_ERROR(-999);
+
+        companion object {
+            infix fun getByScore(value: Int): Status? =
+                Status.values().firstOrNull { it.code == value }
+        }
+    }
+
+}

app/src/main/java/h_mal/appttude/com/driver/utils/FirebaseUtils.kt

@@ -30,7 +30,6 @@ suspend fun DatabaseReference.singleValueEvent(): EventResponse = suspendCorouti
 /**
  * Read database reference once {@link #DatabaseReference.addListenerForSingleValueEvent}
  *
- *
  * @return T
  */
 suspend inline fun <reified T : Any> DatabaseReference.getDataFromDatabaseRef(): T? {
@@ -39,7 +38,23 @@ suspend inline fun <reified T : Any> DatabaseReference.getDataFromDatabaseRef():
             response.snapshot.getValue(T::class.java)
         }
         is EventResponse.Cancelled -> {
-            throw response.error.toException()
+            throw FirebaseException(response.error)
+        }
+    }
+}
+
+/**
+ * Read database reference once {@link #DatabaseReference.addListenerForSingleValueEvent}
+ *
+ * @return T
+ */
+suspend inline fun <reified T : Any> DatabaseReference.getListDataFromDatabaseRef(): List<T?> {
+    return when (val response: EventResponse = singleValueEvent()) {
+        is EventResponse.Changed -> {
+            response.snapshot.children.map { it.getValue(T::class.java) }
+        }
+        is EventResponse.Cancelled -> {
+            throw FirebaseException(response.error)
         }
     }
 }
@@ -50,7 +65,7 @@ suspend fun <T: Any> DatabaseReference.getDataFromDatabaseRef(clazz : Class<T>):
             response.snapshot.getValue(clazz)
         }
         is EventResponse.Cancelled -> {
-            throw response.error.toException()
+            throw FirebaseException(response.error)
         }
     }
 }

app/src/main/java/h_mal/appttude/com/driver/utils/ViewUtils.kt

@@ -2,7 +2,6 @@ package h_mal.appttude.com.driver.utils
 
 import android.annotation.SuppressLint
 import android.app.Activity
-import android.content.Context
 import android.content.Intent
 import android.content.res.Resources
 import android.graphics.Bitmap
@@ -16,7 +15,6 @@ import android.view.inputmethod.InputMethodManager
 import android.widget.EditText
 import android.widget.ImageView
 import android.widget.TextView
-import android.widget.Toast
 import androidx.annotation.DrawableRes
 import androidx.appcompat.widget.SearchView
 import androidx.fragment.app.Fragment

app/src/main/res/drawable/baseline_inbox_24.xml

@@ -0,0 +1,5 @@
+<vector android:height="72dp" android:tint="#FFFFFF"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="72dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M19,3L4.99,3c-1.11,0 -1.98,0.89 -1.98,2L3,19c0,1.1 0.88,2 1.99,2L19,21c1.1,0 2,-0.9 2,-2L21,5c0,-1.11 -0.9,-2 -2,-2zM19,15h-4c0,1.66 -1.35,3 -3,3s-3,-1.34 -3,-3L4.99,15L4.99,5L19,5v10z"/>
+</vector>

app/src/main/res/values/strings.xml

@@ -105,4 +105,15 @@
     <string name="approve">Approve</string>
     <string name="deny">Deny</string>
     <string name="decline">Decline</string>
+    <string name="no_drivers_to_show">No drivers to show</string>
+    <string name="no_drivers_subtext">There are no drivers present for your organisation.</string>
+    <string name="no_permission">You do not have permissions to view</string>
+    <string name="no_permission_subtext">You are not a super user. Contact us to get super user access.</string>
+    <string name="cannot_retrieve">Cannot retrieve data.</string>
+    <string name="cannot_retrieve_subtext">Check you are logged in correctly and have a working connection.</string>
+    <string name="no_connection">No connection</string>
+    <string name="no_connection_subtext">Make you have a valid internet connection.</string>
+    <string name="no_authorization">Authentication has failed</string>
+    <string name="no_authorization_subtext">There is a problem with authentication.</string>
+    <string name="image_icon_for_feedback_view">Image icon for feedback view.</string>
 </resources>