Initial and done prolly

lib/utils/format_datetime_extension.dart

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+extension FormatDatetimeExtension on DateTime {
+  String get simpleDateFormat {
+    return "${day < 10 ? "0" : ""}$day.$month.$year";
+  }
+}

lib/utils/get_interface_extension.dart

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+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+extension GetInterfaceExtension on GetInterface {
+  Future<bool> confirm({
+    required String title,
+    required String content,
+    String yes = "Да",
+    String no = "Нет",
+  }) async {
+    final result = await Get.defaultDialog(
+      title: title,
+      content: Text(content),
+      textConfirm: yes,
+      textCancel: no,
+      onConfirm: () => Get.backLegacy(result: true),
+      onCancel: () => Get.backLegacy(result: false),
+    );
+
+    return result == true;
+  }
+
+  Future<String?> prompt({
+    required String title,
+    String message = "",
+    String hintText = "",
+    String label = "",
+    String defaultValue = "",
+    String positiveLabel = "ОК",
+    String negativeLabel = "Отмена",
+    int? maxLength,
+    int maxLines = 1,
+    Widget? prefix,
+    required String? Function(String? x) stringValidator,
+  }) async {
+    final controller = TextEditingController(text: defaultValue);
+    final value = Get.dialog<String>(
+      AlertDialog(
+        title: Text(title),
+        content: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            if (message.isNotEmpty)
+              Padding(
+                padding: const EdgeInsets.only(bottom: 8),
+                child: Text(message),
+              ),
+            TextFormField(
+              controller: controller,
+              decoration: InputDecoration(
+                hintText: hintText,
+                filled: true,
+                prefix: prefix,
+                label: Text(label),
+              ),
+              maxLength: maxLength,
+              maxLines: maxLines,
+              autovalidateMode: AutovalidateMode.onUserInteraction,
+              validator: stringValidator,
+            )
+          ],
+        ),
+        actions: [
+          ElevatedButton(
+            onPressed: () {
+              if (stringValidator(controller.value.text) == null) {
+                Get.backLegacy(result: controller.value.text);
+              }
+            },
+            child: Text(positiveLabel),
+          ),
+          ElevatedButton(
+            onPressed: () => Get.backLegacy(result: null),
+            child: Text(negativeLabel),
+          ),
+        ],
+      ),
+      barrierDismissible: false,
+      useSafeArea: true,
+    );
+    return value;
+  }
+}

lib/utils/pluralize_int_extension.dart

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+extension PluralizeIntExtension on int {
+  String pluralize({
+    required String name,
+    required String absent,
+    required String absentMul,
+  }) {
+    final plurality = this % 10 == 1 && this % 100 != 11
+        ? 0
+        : this % 10 >= 2 &&
+                this % 10 <= 4 &&
+                (this % 100 < 10 || this % 100 >= 20)
+            ? 1
+            : 2;
+
+    switch (plurality) {
+      case 1:
+        return "$this $absent";
+      case 2:
+        return "$this $absentMul";
+      default:
+        return "$this $name";
+    }
+  }
+}