From b95692bdf336875cf37c6a1bc7fa9056cca6e563 Mon Sep 17 00:00:00 2001
From: Mathieu Sanchez <mathieu.sanchez@outlook.fr>
Date: Fri, 17 Apr 2020 08:59:14 +0200
Subject: [PATCH] Add No Attestations when attestations DB is empty

---
 .../ui/attestations/AttestationsViewModel.kt        | 13 ++++++++++++-
 app/src/main/res/layout/fragment_attestations.xml   | 10 ++++++++++
 app/src/main/res/values/strings.xml                 |  1 +
 3 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/fr/sanchezm/attestationsCovid19/ui/attestations/AttestationsViewModel.kt b/app/src/main/java/fr/sanchezm/attestationsCovid19/ui/attestations/AttestationsViewModel.kt
index 8177937..4d277bb 100644
--- a/app/src/main/java/fr/sanchezm/attestationsCovid19/ui/attestations/AttestationsViewModel.kt
+++ b/app/src/main/java/fr/sanchezm/attestationsCovid19/ui/attestations/AttestationsViewModel.kt
@@ -1,5 +1,6 @@
 package fr.sanchezm.attestationsCovid19.ui.attestations
 
+import android.view.View
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
@@ -13,13 +14,23 @@ class AttestationsViewModel(attestationRepository: AttestationRepository) : View
 
     private var _attestations = attestationRepository.getAttestations() as MutableLiveData<ArrayList<Attestation>>
 
+    private var _displayNoAttestation = MutableLiveData<Int>()
+
     val attestations: LiveData<ArrayList<Attestation>> =
         _attestations
 
     val startActivity: LiveData<Event<Long>> =
         _startActivity
 
+    val displayNoAttestation: LiveData<Int> =
+        _displayNoAttestation
+
     init {
-        _attestations = attestationRepository.getAttestations() as MutableLiveData<ArrayList<Attestation>>
+        if (_attestations.value == null || _attestations.value?.size == 0) {
+            _displayNoAttestation.value = View.VISIBLE
+        } else {
+            _displayNoAttestation.value = View.GONE
+        }
     }
+
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_attestations.xml b/app/src/main/res/layout/fragment_attestations.xml
index f2f0f47..803175b 100644
--- a/app/src/main/res/layout/fragment_attestations.xml
+++ b/app/src/main/res/layout/fragment_attestations.xml
@@ -29,6 +29,16 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent" />
 
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="20dp"
+            android:text="@string/no_attestation"
+            android:visibility="@{viewModel.displayNoAttestation}"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/title" />
+
         <androidx.recyclerview.widget.RecyclerView
             android:id="@+id/attestation_recycler_view"
             android:layout_width="match_parent"
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 99a2422..bcb5e31 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -9,6 +9,7 @@
     <string name="attestation_subtitle">#RestonsChezNous</string>
     <string name="error_cannot_create_attestation">Erreur lors de la génération de l\'attestation, tout les champs ne sont pas compléter</string>
     <string name="attestation_generated">Attestation générer</string>
+    <string name="no_attestation">Aucune attestation, veuillez en générer une.</string>
 
     <!-- Field for attestation -->
     <string name="first_name">Prénom</string>