fix some crashes related to playground, add edit button in playground

README.md

@@ -11,14 +11,14 @@
     - [x] Créer des questions
     - [x] Supprimer des questions
   - [x] Choisir / Sélection
-  - [ ] Commencer un jeu
+  - [x] Commencer un jeu
   - [ ] Reprendre la progression d'un jeu
   - [ ] Afficher les statistiques de tous les jeux
 - Dans un jeu
-  - [ ] Consulter la réponse à une question trop difficile
+  - [x] Consulter la réponse à une question trop difficile
   - [ ] Choisir le statut d'une question
-  - [ ] Modifier la question
-  - [ ] Supprimer la question
+  - [x] Modifier la question
+  - [x] Supprimer la question
   - [ ] Afficher les statistiques du jeu de question en cours
 - [ ] Notification
   - une fois par jour

app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/MainActivity.kt

@@ -84,6 +84,7 @@ fun MainScreen() {
                 it.arguments?.getString(PLAY_SET_ARG)?.let { idSet ->
                     PlayScreen(
                         padding,
+                        navController,
                         snackbarHostState,
                         idSet.toInt()
                     )

app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/PlayScreen.kt

@@ -4,6 +4,7 @@ import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.AlertDialog
@@ -19,7 +20,11 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavController
 import fr.uparis.diamantkennel.memorisationapplication.ui.AnswerType
 import fr.uparis.diamantkennel.memorisationapplication.ui.PlayViewModel
 
@@ -27,6 +32,7 @@ import fr.uparis.diamantkennel.memorisationapplication.ui.PlayViewModel
 @Composable
 fun PlayScreen(
     padding: PaddingValues,
+    navController: NavController,
     snackbarHostState: SnackbarHostState,
     idSet: Int,
     model: PlayViewModel = viewModel()
@@ -35,9 +41,6 @@ fun PlayScreen(
     model.updateQuestionList(idSet)
 
     val question by model.currentQuestion
-    if (question == null) {
-        return
-    }
     val reponse by model.proposedAnswer
     val correction by model.evaluatedAnswer
     var giveup by model.showAnswer
@@ -56,12 +59,12 @@ fun PlayScreen(
         }
     }
 
-    if (giveup) {
+    if (giveup && question != null) {
         SolutionDialog(question!!.reponse, model::newQuestion)
     }
 
     // Update timer if needed
-    if (!model.isDelayElapsed()) {
+    if (!model.isDelayElapsed() && question != null) {
         model.updateTime(System.currentTimeMillis())
     }
 
@@ -69,14 +72,25 @@ fun PlayScreen(
         modifier = Modifier.padding(padding),
         horizontalAlignment = Alignment.CenterHorizontally
     ) {
-        Text(text = question!!.enonce)
+        if (question == null) {
+            Text("Ce set n'a aucune question", fontSize = 30.sp, textAlign = TextAlign.Center)
+        } else {
+            Text(text = question!!.enonce, fontSize = 30.sp, textAlign = TextAlign.Center)
+
+            Spacer(modifier = Modifier.padding(top = 20.dp))
+
             OutlinedTextField(
                 value = reponse,
                 label = { Text(text = "Réponse") },
                 onValueChange = model::updateAnswer
             )
 
-        Row(modifier = Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceEvenly) {
+            Spacer(modifier = Modifier.padding(top = 20.dp))
+
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                horizontalArrangement = Arrangement.SpaceEvenly
+            ) {
                 Button(
                     enabled = reponse.isNotBlank() && correction == null,
                     onClick = model::checkAnswer
@@ -91,6 +105,14 @@ fun PlayScreen(
                 }
             }
         }
+
+        Spacer(modifier = Modifier.weight(1f))
+
+        Button(
+            onClick = { navController.navigate("$MODIFY_SET/$idSet") }) {
+            Text(text = "Modifier le set")
+        }
+    }
 }
 
 @Composable

app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/ui/PlayViewModel.kt

@@ -24,7 +24,7 @@ class PlayViewModel(application: Application) : AndroidViewModel(application) {
 
     fun updateQuestionList(setId: Int) {
         if (currentQuestion.value == null) {
-            viewModelScope.launch(Dispatchers.IO) {
+            viewModelScope.launch(Dispatchers.Main) {
                 dao.loadQuestions(setId).collect { questionList ->
                     questions.value = questionList.shuffled()
                     updateQuestion()
@@ -34,12 +34,16 @@ class PlayViewModel(application: Application) : AndroidViewModel(application) {
     }
 
     private fun updateQuestion() {
+        if (questions.value.isEmpty()) {
+            currentQuestion.value = null
+        } else {
             if (index.value >= questions.value.size) {
                 /* Fin des questions */
                 index.value = 0
             }
             currentQuestion.value = questions.value[index.value]
         }
+    }
 
     private fun reset() {
         proposedAnswer.value = ""
@@ -84,8 +88,13 @@ class PlayViewModel(application: Application) : AndroidViewModel(application) {
 
     fun sbUpdate() {
         when (evaluatedAnswer.value!!) {
-            AnswerType.GOOD -> newQuestion()
-            AnswerType.BAD -> reset()
+            AnswerType.GOOD -> {
+                newQuestion()
+            }
+
+            AnswerType.BAD -> {
+                reset()
+            }
         }
     }