feat: adding index delete on the question maker

lib/component/notification/delete_confirmation.dart

@@ -0,0 +1,69 @@
+import 'package:flutter/material.dart';
+import 'package:quiz_app/app/const/colors/app_colors.dart';
+
+class DeleteQuestionDialog {
+  static Future<void> show({
+    required BuildContext context,
+    required VoidCallback onDelete,
+  }) async {
+    showDialog(
+      context: context,
+      barrierDismissible: true,
+      builder: (context) {
+        return Dialog(
+          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
+          child: Padding(
+            padding: const EdgeInsets.all(20),
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                const Text(
+                  "Hapus Soal?",
+                  style: TextStyle(fontWeight: FontWeight.bold, fontSize: 18, color: AppColors.darkText),
+                ),
+                const SizedBox(height: 16),
+                const Text(
+                  "Soal ini akan dihapus dari daftar kuis. Yakin ingin menghapus?",
+                  style: TextStyle(fontSize: 14, color: AppColors.softGrayText),
+                  textAlign: TextAlign.center,
+                ),
+                const SizedBox(height: 24),
+                Row(
+                  children: [
+                    Expanded(
+                      child: ElevatedButton(
+                        onPressed: () => Navigator.pop(context),
+                        style: ElevatedButton.styleFrom(
+                          backgroundColor: Colors.white,
+                          foregroundColor: AppColors.primaryBlue,
+                          side: const BorderSide(color: AppColors.primaryBlue),
+                          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+                        ),
+                        child: const Text("Batal"),
+                      ),
+                    ),
+                    const SizedBox(width: 12),
+                    Expanded(
+                      child: ElevatedButton(
+                        onPressed: () {
+                          Navigator.pop(context);
+                          onDelete();
+                        },
+                        style: ElevatedButton.styleFrom(
+                          backgroundColor: AppColors.primaryBlue,
+                          foregroundColor: Colors.white,
+                          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+                        ),
+                        child: const Text("Hapus"),
+                      ),
+                    ),
+                  ],
+                ),
+              ],
+            ),
+          ),
+        );
+      },
+    );
+  }
+}

lib/data/models/quiz/quiestion_data_model.dart

@@ -25,6 +25,7 @@ class QuestionData {
   });
 
   QuestionData copyWith({
+    int? index,
     String? question,
     String? answer,
     List<OptionData>? options,
@@ -32,7 +33,7 @@ class QuestionData {
     QuestionType? type,
   }) {
     return QuestionData(
-      index: index,
+      index: index ?? this.index,
       question: question ?? this.question,
       answer: answer ?? this.answer,
       options: options ?? this.options,

lib/feature/quiz_creation/controller/quiz_creation_controller.dart

@@ -3,6 +3,7 @@ import 'package:flutter/widgets.dart';
 import 'package:get/get.dart';
 import 'package:quiz_app/app/const/enums/question_type.dart';
 import 'package:quiz_app/app/routes/app_pages.dart';
+import 'package:quiz_app/component/notification/delete_confirmation.dart';
 import 'package:quiz_app/component/notification/pop_up_confirmation.dart';
 import 'package:quiz_app/data/models/quiz/quiestion_data_model.dart';
 
@@ -142,4 +143,28 @@ class QuizCreationController extends GetxController {
       AppDialog.showExitConfirmationDialog(context);
     }
   }
+
+  void showDeleteQuestionDialog(BuildContext context, int index) {
+    DeleteQuestionDialog.show(context: context, onDelete: () => onQuestionDelete(index));
+  }
+
+  void onQuestionDelete(int index) {
+    if (quizData.length <= 1) {
+      Get.snackbar('Tidak Bisa Dihapus', 'Minimal harus ada satu soal dalam kuis.');
+      return;
+    }
+
+    quizData.removeAt(index);
+
+    for (int i = 0; i < quizData.length; i++) {
+      quizData[i] = quizData[i].copyWith(index: i + 1);
+    }
+
+    if (selectedQuizIndex.value == index) {
+      selectedQuizIndex.value = 0;
+      onSelectedQuizItem(0);
+    } else if (selectedQuizIndex.value > index) {
+      selectedQuizIndex.value -= 1;
+    }
+  }
 }

lib/feature/quiz_creation/view/component/custom_question_component.dart

@@ -15,6 +15,15 @@ class CustomQuestionComponent extends GetView<QuizCreationController> {
     return Column(
       children: [
         _buildNumberPicker(),
+        const SizedBox(height: 8),
+        const Text(
+          "*Tekan dan tahan soal untuk menghapus",
+          style: TextStyle(
+            fontSize: 12,
+            color: AppColors.softGrayText,
+            fontStyle: FontStyle.italic,
+          ),
+        ),
         const SizedBox(height: 20),
         _buildQuizTypeSelector(),
         const SizedBox(height: 20),
@@ -65,6 +74,11 @@ class CustomQuestionComponent extends GetView<QuizCreationController> {
                   controller.onSelectedQuizItem(index);
                 }
               },
+              onLongPress: () {
+                if (!isLast) {
+                  controller.showDeleteQuestionDialog(context, index);
+                }
+              },
               child: Obx(() {
                 bool isSelected = controller.selectedQuizIndex.value == index;
                 return Container(