Driver admin complete

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

app/src/admin/java/h_mal/appttude/com/driver/application/DriverApplication.kt

@@ -1,14 +1,6 @@
 package h_mal.appttude.com.driver.application
 
-import android.app.Application
-import android.content.res.Resources
-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
 import org.kodein.di.generic.bind
 import org.kodein.di.generic.instance
 import org.kodein.di.generic.provider

app/src/admin/java/h_mal/appttude/com/driver/model/DatabaseStatus.kt

@@ -0,0 +1,27 @@
+package h_mal.appttude.com.driver.model
+
+import h_mal.appttude.com.driver.R
+
+enum class DatabaseStatus(val drawable: Int, val header: Int, val subtext: Int) {
+    NO_CONNECTION(R.drawable.baseline_inbox_24, R.string.no_connection, R.string.no_connection_subtext),
+    NO_PERMISSION(
+        R.drawable.baseline_inbox_24,
+        R.string.no_permission,
+        R.string.no_permission_subtext
+    ),
+    CANNOT_RETRIEVE(
+        R.drawable.baseline_inbox_24,
+        R.string.cannot_retrieve,
+        R.string.cannot_retrieve_subtext
+    ),
+    NO_AUTHORIZATION(
+        R.drawable.baseline_inbox_24,
+        R.string.no_authorization,
+        R.string.no_authorization_subtext
+    ),
+    EMPTY_RESULTS(
+        R.drawable.baseline_inbox_24,
+        R.string.no_drivers_to_show,
+        R.string.no_drivers_subtext
+    )
+}

app/src/admin/java/h_mal/appttude/com/driver/objects/ArchiveObject.kt

@@ -1,6 +1,12 @@
 package h_mal.appttude.com.driver.objects
 
-import h_mal.appttude.com.driver.model.*
+import h_mal.appttude.com.driver.model.DriversLicense
+import h_mal.appttude.com.driver.model.Insurance
+import h_mal.appttude.com.driver.model.Logbook
+import h_mal.appttude.com.driver.model.Mot
+import h_mal.appttude.com.driver.model.PrivateHireLicense
+import h_mal.appttude.com.driver.model.PrivateHireVehicle
+import h_mal.appttude.com.driver.model.VehicleProfile
 
 
 data class ArchiveObject(

app/src/admin/java/h_mal/appttude/com/driver/objects/wholeObject/VehicleProfile.kt

@@ -1,6 +1,9 @@
 package h_mal.appttude.com.driver.objects.wholeObject
 
-import h_mal.appttude.com.driver.model.*
+import h_mal.appttude.com.driver.model.Insurance
+import h_mal.appttude.com.driver.model.Logbook
+import h_mal.appttude.com.driver.model.Mot
+import h_mal.appttude.com.driver.model.PrivateHireVehicle
 import h_mal.appttude.com.driver.model.VehicleProfile
 
 data class VehicleProfile (

app/src/admin/java/h_mal/appttude/com/driver/ui/ApproverFragment.kt

@@ -1,6 +1,5 @@
 package h_mal.appttude.com.driver.ui
 
-import com.google.android.material.snackbar.Snackbar
 import h_mal.appttude.com.driver.base.BaseFragment
 import h_mal.appttude.com.driver.databinding.FragmentApproverBinding
 import h_mal.appttude.com.driver.model.ApprovalStatus

app/src/admin/java/h_mal/appttude/com/driver/ui/HomeSuperUserFragment.kt

@@ -19,6 +19,8 @@ import h_mal.appttude.com.driver.base.CustomViewHolder
 import h_mal.appttude.com.driver.data.USER_CONST
 import h_mal.appttude.com.driver.databinding.FragmentHomeSuperUserBinding
 import h_mal.appttude.com.driver.databinding.ListItemLayoutBinding
+import h_mal.appttude.com.driver.model.DatabaseStatus
+import h_mal.appttude.com.driver.model.DatabaseStatus.*
 import h_mal.appttude.com.driver.model.SortOption
 import h_mal.appttude.com.driver.objects.UserObject
 import h_mal.appttude.com.driver.objects.WholeDriverObject
@@ -27,7 +29,8 @@ import h_mal.appttude.com.driver.viewmodels.SuperUserViewModel
 import java.util.*
 
 
-class HomeSuperUserFragment : BaseFragment<SuperUserViewModel, FragmentHomeSuperUserBinding>(), MenuProvider {
+class HomeSuperUserFragment : BaseFragment<SuperUserViewModel, FragmentHomeSuperUserBinding>(),
+    MenuProvider {
     private lateinit var adapter: FirebaseRecyclerAdapter<WholeDriverObject, CustomViewHolder<ListItemLayoutBinding>>
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -42,6 +45,17 @@ class HomeSuperUserFragment : BaseFragment<SuperUserViewModel, FragmentHomeSuper
             is FirebaseRecyclerOptions<*> -> setAdapterToRecyclerView(data)
         }
     }
+    private fun setNonView(status: DatabaseStatus) {
+        applyBinding {
+            emptyView.run {
+                root.setOnClickListener(null)
+                root.visibility = View.VISIBLE
+                icon.setImageResource(status.drawable)
+                header.setText(status.header)
+                subtext.setText(status.subtext)
+            }
+        }
+    }
 
     @Suppress("UNCHECKED_CAST")
     private fun setAdapterToRecyclerView(options: FirebaseRecyclerOptions<*>) {
@@ -74,8 +88,8 @@ class HomeSuperUserFragment : BaseFragment<SuperUserViewModel, FragmentHomeSuper
     }
 
     private fun createAdapter(options: FirebaseRecyclerOptions<WholeDriverObject>): BaseFirebaseAdapter<WholeDriverObject, ListItemLayoutBinding> {
-        return object : BaseFirebaseAdapter<WholeDriverObject, ListItemLayoutBinding>(options, layoutInflater) {
-
+        return object :
+            BaseFirebaseAdapter<WholeDriverObject, ListItemLayoutBinding>(options, layoutInflater) {
             override fun onBindViewHolder(
                 holder: CustomViewHolder<ListItemLayoutBinding>,
                 position: Int,
@@ -87,7 +101,8 @@ class HomeSuperUserFragment : BaseFragment<SuperUserViewModel, FragmentHomeSuper
                     usernameText.text = userDetails?.profileName
                     emailaddressText.text = userDetails?.profileEmail
                     driverNo.run {
-                        val number = if (model.driver_number.isNullOrBlank()) "#N/A" else model.driver_number
+                        val number =
+                            if (model.driver_number.isNullOrBlank()) "#N/A" else model.driver_number
                         text = number
                         setOnClickListener {
                             getKeyAtPosition(position)?.let { showChangeNumberDialog(number!!, it) }
@@ -121,8 +136,24 @@ class HomeSuperUserFragment : BaseFragment<SuperUserViewModel, FragmentHomeSuper
                 applyBinding { progressCircular.hide() }
             }
 
-            override fun connectionLost() {
-                showToast("No connection available")
+            override fun authorizationError() {
+                setNonView(NO_AUTHORIZATION)
+            }
+
+            override fun cannotRetrieve() {
+                setNonView(CANNOT_RETRIEVE)
+            }
+
+            override fun noConnection() {
+                setNonView(NO_CONNECTION)
+            }
+
+            override fun permissionsDenied() {
+                setNonView(NO_PERMISSION)
+            }
+
+            override fun emptyList() {
+                setNonView(EMPTY_RESULTS)
             }
         }
     }

app/src/admin/java/h_mal/appttude/com/driver/viewmodels/ApproverViewModel.kt

@@ -14,7 +14,11 @@ import h_mal.appttude.com.driver.objects.ApprovalsObject
 import h_mal.appttude.com.driver.ui.driverprofile.DriverLicenseFragment
 import h_mal.appttude.com.driver.ui.driverprofile.DriverProfileFragment
 import h_mal.appttude.com.driver.ui.driverprofile.PrivateHireLicenseFragment
-import h_mal.appttude.com.driver.ui.vehicleprofile.*
+import h_mal.appttude.com.driver.ui.vehicleprofile.InsuranceFragment
+import h_mal.appttude.com.driver.ui.vehicleprofile.LogbookFragment
+import h_mal.appttude.com.driver.ui.vehicleprofile.MotFragment
+import h_mal.appttude.com.driver.ui.vehicleprofile.PrivateHireVehicleFragment
+import h_mal.appttude.com.driver.ui.vehicleprofile.VehicleProfileFragment
 import h_mal.appttude.com.driver.utils.Coroutines.io
 import h_mal.appttude.com.driver.utils.FRAGMENT
 import h_mal.appttude.com.driver.utils.getDataFromDatabaseRef

app/src/admin/java/h_mal/appttude/com/driver/viewmodels/SuperUserViewModel.kt

@@ -22,7 +22,7 @@ class SuperUserViewModel(
     }
 
     fun createFirebaseOptions(sort: SortOption? = null) {
-        val ref = firebaseDatabaseSource.getUsersRef()
+        val ref = firebaseDatabaseSource.getUsersRef().orderByChild("role").startAt("driver").endAt("driver")
 
         sort?.isNotNull { preferenceProvider.setSortOption(it.label) }
 
@@ -33,7 +33,7 @@ class SuperUserViewModel(
 //        }
 
         val options = FirebaseRecyclerOptions.Builder<WholeDriverObject>()
-            .setQuery(ref.orderByKey(), WholeDriverObject::class.java)
+            .setQuery(ref, WholeDriverObject::class.java)
             .build()
 
         onSuccess(options)
@@ -47,7 +47,7 @@ class SuperUserViewModel(
                     onError("No driver identifier provided")
                     return@doTryOperation
                 }
-                val text = if (input.length > 6) input.substring(0,7) else input
+                val text = if (input.length > 6) input.substring(0, 7) else input
 
                 firebaseDatabaseSource.run {
                     postToDatabaseRed(getDriverNumberRef(uid), text)

app/src/admin/res/layout/empty_users_view.xml

@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@drawable/background_with_curve"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <ImageView
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:src="@drawable/splash_screen"
+        android:scaleType="centerCrop"
+        android:paddingTop="@dimen/default_indicator_margin_horizontal"
+        android:layout_marginTop="@dimen/default_indicator_margin_horizontal"
+        app:layout_constraintHeight_percent="0.5"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        android:importantForAccessibility="no" />
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        style="@style/constraint_container">
+        <ImageView
+            android:id="@+id/icon"
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            app:layout_constraintLeft_toLeftOf="parent"
+            app:layout_constraintRight_toRightOf="parent"
+            app:layout_constraintBottom_toTopOf="@id/header"
+            android:src="@drawable/baseline_inbox_24"
+            android:contentDescription="@string/image_icon_for_feedback_view" />
+        <TextView
+            android:id="@+id/header"
+            style="@style/headerStyle"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintLeft_toLeftOf="parent"
+            app:layout_constraintRight_toRightOf="parent"
+            android:gravity="center"
+            android:text="@string/no_drivers_to_show"/>
+        <TextView
+            android:id="@+id/subtext"
+            style="@style/subheader"
+            app:layout_constraintTop_toBottomOf="@id/header"
+            app:layout_constraintLeft_toLeftOf="parent"
+            app:layout_constraintRight_toRightOf="parent"
+            android:gravity="center"
+            android:text="@string/no_drivers_subtext"/>
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/admin/res/layout/fragment_home_super_user.xml

@@ -3,6 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:id="@+id/container"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     tools:context=".ui.HomeSuperUserFragment">
 
@@ -28,9 +29,9 @@
 
     <include
         android:id="@+id/empty_view"
-        layout="@layout/empty_layout"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
+        layout="@layout/empty_users_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintLeft_toLeftOf="parent"
@@ -38,5 +39,4 @@
         android:visibility="gone"
         tools:visibility="visible"/>
 
-
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/androidTest/java/h_mal/appttude/com/driver/BaseTestRobot.kt

@@ -24,7 +24,11 @@ import androidx.test.espresso.intent.Intents
 import androidx.test.espresso.intent.Intents.intending
 import androidx.test.espresso.intent.matcher.IntentMatchers
 import androidx.test.espresso.intent.matcher.IntentMatchers.hasAction
-import androidx.test.espresso.matcher.ViewMatchers.*
+import androidx.test.espresso.matcher.ViewMatchers.hasDescendant
+import androidx.test.espresso.matcher.ViewMatchers.isRoot
+import androidx.test.espresso.matcher.ViewMatchers.withClassName
+import androidx.test.espresso.matcher.ViewMatchers.withId
+import androidx.test.espresso.matcher.ViewMatchers.withText
 import h_mal.appttude.com.driver.helpers.DataHelper
 import h_mal.appttude.com.driver.helpers.EspressoHelper.waitForView
 import org.hamcrest.CoreMatchers.allOf
@@ -33,6 +37,7 @@ import org.hamcrest.Matcher
 import org.hamcrest.Matchers
 import java.io.File
 
+@SuppressWarnings("unused")
 open class BaseTestRobot {
 
     fun fillEditText(resId: Int, text: String?): ViewInteraction =
@@ -51,6 +56,9 @@ open class BaseTestRobot {
     fun matchText(viewInteraction: ViewInteraction, text: String): ViewInteraction = viewInteraction
         .check(matches(withText(text)))
 
+    fun matchText(viewId: Int, textId: Int): ViewInteraction = onView(withId(viewId))
+        .check(matches(withText(textId)))
+
     fun matchText(resId: Int, text: String): ViewInteraction = matchText(matchView(resId), text)
 
     fun clickListItem(listRes: Int, position: Int) {

app/src/androidTest/java/h_mal/appttude/com/driver/BaseUiTest.kt

@@ -5,14 +5,19 @@ import android.app.Activity
 import android.content.Context
 import android.view.View
 import android.view.WindowManager
-import android.widget.Toast
 import androidx.annotation.StringRes
 import androidx.test.core.app.ActivityScenario
-import androidx.test.espresso.*
 import androidx.test.espresso.Espresso.onView
-import androidx.test.espresso.action.ViewActions.click
+import androidx.test.espresso.IdlingRegistry
+import androidx.test.espresso.IdlingResource
+import androidx.test.espresso.Root
+import androidx.test.espresso.UiController
+import androidx.test.espresso.ViewAction
 import androidx.test.espresso.assertion.ViewAssertions.matches
-import androidx.test.espresso.matcher.ViewMatchers.*
+import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
+import androidx.test.espresso.matcher.ViewMatchers.isRoot
+import androidx.test.espresso.matcher.ViewMatchers.withId
+import androidx.test.espresso.matcher.ViewMatchers.withText
 import androidx.test.platform.app.InstrumentationRegistry.getInstrumentation
 import h_mal.appttude.com.driver.base.BaseActivity
 import h_mal.appttude.com.driver.helpers.BaseViewAction
@@ -61,7 +66,7 @@ open class BaseUiTest<T : BaseActivity<*, *>>(
     fun waitFor(delay: Long) {
         onView(isRoot()).perform(object : ViewAction {
             override fun getConstraints(): Matcher<View> = isRoot()
-            override fun getDescription(): String? = "wait for $delay milliseconds"
+            override fun getDescription(): String = "wait for $delay milliseconds"
             override fun perform(uiController: UiController, v: View?) {
                 uiController.loopMainThreadForAtLeast(delay)
             }
@@ -71,6 +76,8 @@ open class BaseUiTest<T : BaseActivity<*, *>>(
     open fun beforeLaunch() {}
     open fun afterLaunch(context: Context) {}
 
+
+    @Suppress("DEPRECATION")
     fun checkToastMessage(message: String) {
         onView(withText(message)).inRoot(object : TypeSafeMatcher<Root>() {
             override fun describeTo(description: Description?) {
@@ -79,7 +86,7 @@ open class BaseUiTest<T : BaseActivity<*, *>>(
 
             override fun matchesSafely(root: Root): Boolean {
                 root.run {
-                    if (windowLayoutParams.get().type === WindowManager.LayoutParams.TYPE_TOAST) {
+                    if (windowLayoutParams.get().type == WindowManager.LayoutParams.TYPE_TOAST) {
                         decorView.run {
                             if (windowToken === applicationWindowToken) {
                                 // windowToken == appToken means this window isn't contained by any other windows.

app/src/androidTestAdmin/java/h_mal/appttude/com/driver/robots/DriverOverviewRobot.kt

@@ -3,7 +3,9 @@ package h_mal.appttude.com.driver.robots
 import androidx.test.espresso.Espresso.onData
 import androidx.test.espresso.action.ViewActions.click
 import androidx.test.espresso.assertion.ViewAssertions.matches
-import androidx.test.espresso.matcher.ViewMatchers.*
+import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
+import androidx.test.espresso.matcher.ViewMatchers.withId
+import androidx.test.espresso.matcher.ViewMatchers.withText
 import h_mal.appttude.com.driver.BaseTestRobot
 import h_mal.appttude.com.driver.R
 import org.hamcrest.CoreMatchers.anything

app/src/androidTestAdmin/java/h_mal/appttude/com/driver/robots/HomeAdminRobot.kt

@@ -8,6 +8,7 @@ import androidx.test.espresso.matcher.ViewMatchers.withTagKey
 import h_mal.appttude.com.driver.BaseTestRobot
 import h_mal.appttude.com.driver.R
 import h_mal.appttude.com.driver.base.CustomViewHolder
+import h_mal.appttude.com.driver.model.DatabaseStatus
 
 fun homeAdmin(func: HomeAdminRobot.() -> Unit) = HomeAdminRobot().apply { func() }
 class HomeAdminRobot : BaseTestRobot() {
@@ -43,4 +44,9 @@ class HomeAdminRobot : BaseTestRobot() {
         // Click OK
         onView(withId(android.R.id.button1)).perform(ViewActions.click())
     }
+
+    fun showNoPermissionsDisplay() {
+        matchText(R.id.header, DatabaseStatus.NO_PERMISSION.header)
+        matchText(R.id.subtext, DatabaseStatus.NO_PERMISSION.subtext)
+    }
 }

app/src/androidTestAdmin/java/h_mal/appttude/com/driver/tests/AdminBaseTest.kt

@@ -7,7 +7,6 @@ import h_mal.appttude.com.driver.ui.MainActivity
 import kotlinx.coroutines.runBlocking
 
 open class AdminBaseTest: FirebaseTest<MainActivity>(MainActivity::class.java) {
-
     override fun beforeLaunch() {
         runBlocking {
             login(ADMIN_EMAIL, PASSWORD)

app/src/androidTestAdmin/java/h_mal/appttude/com/driver/tests/DocumentApproverTest.kt

@@ -1,10 +1,10 @@
 package h_mal.appttude.com.driver.tests
 
 import androidx.test.espresso.Espresso
+import h_mal.appttude.com.driver.R
 import h_mal.appttude.com.driver.robots.approver
 import h_mal.appttude.com.driver.robots.driverOverview
 import h_mal.appttude.com.driver.robots.homeAdmin
-import h_mal.appttude.com.driver.R
 import org.junit.Test
 
 class DocumentApproverTest : AdminBaseTest() {

app/src/androidTestAdmin/java/h_mal/appttude/com/driver/tests/UserListTest.kt

@@ -1,6 +1,7 @@
 package h_mal.appttude.com.driver.tests
 
 import h_mal.appttude.com.driver.ADMIN_EMAIL
+import h_mal.appttude.com.driver.DRIVER_EMAIL
 import h_mal.appttude.com.driver.FirebaseTest
 import h_mal.appttude.com.driver.robots.homeAdmin
 import h_mal.appttude.com.driver.robots.login
@@ -18,7 +19,17 @@ class UserListTest : FirebaseTest<LoginActivity>(LoginActivity::class.java) {
         homeAdmin {
             clickOnDriverIdentifier("rsaif660@gmail.com")
             submitDialog("ID45")
-            waitFor(5000)
+        }
+    }
+
+    @Test
+    fun loginAsUser_unableToSeeDrivers_loggedIn() {
+        login {
+            waitFor(1100)
+            attemptLogin(DRIVER_EMAIL)
+        }
+        homeAdmin {
+            showNoPermissionsDisplay()
         }
     }
 

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>