feat(payment, chat): promo code mocked BottomSheet added

lib/features/chat/presentation/widgets/notification_banner.dart

@@ -9,7 +9,7 @@ import 'package:eatvio_app/features/chat/presentation/widgets/complete_plan_bott
 import 'package:eatvio_app/features/chat/presentation/widgets/plan_complain_bottom_sheet.dart';
 import 'package:eatvio_app/features/my_diets/presentation/my_diets_screen.dart';
 import 'package:eatvio_app/features/my_finance/presentation/pages/card_settings.dart';
-import 'package:eatvio_app/features/payment/presentation/widgets/sbp_banks_bottom_sheet.dart';
+import 'package:eatvio_app/features/payment/presentation/payment_flow.dart';
 import 'package:eatvio_app/generated/l10n.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
@@ -106,7 +106,7 @@ class _NotificationBannerState extends State<NotificationBanner> {
                             onTap: () {
                               final planId = (context.read<ChatRoomCubit>().state as ChatRoomStateLoaded).chatRoom.chosenPlan?.id;
                               if (planId != null) {
-                                showSbpBanksBottomSheet(context, planId: planId);
+                                showConsultationPaymentFlow(context, planId: planId);
                               }
                             },
                             child: Text(s.pay, style: TextStyles.textLSemibold.copyWith(color: appTheme.blueA400)),

lib/features/payment/presentation/payment_flow.dart

@@ -0,0 +1,49 @@
+import 'package:eatvio_app/features/payment/presentation/widgets/promo_code_gate_bottom_sheet.dart';
+import 'package:eatvio_app/features/payment/presentation/widgets/promo_code_modal.dart';
+import 'package:eatvio_app/features/payment/presentation/widgets/sbp_banks_bottom_sheet.dart';
+import 'package:eatvio_app/generated/l10n.dart';
+import 'package:flutter/material.dart';
+
+/// Оркестрирует флоу оплаты консультации:
+/// гейт «У вас есть промокод?» → (Да → форма промокода) → SbpBanks.
+Future<void> showConsultationPaymentFlow(
+  BuildContext context, {
+  required int planId,
+  Future<bool?> Function(BuildContext)? showGate,
+  Future<PromoCodeResult?> Function(BuildContext, {Future<PromoValidation> Function(String)? onValidate})? showForm,
+  Future<void> Function(BuildContext, {required int planId})? showSbp,
+}) async {
+  final gate = showGate ?? _showGate;
+  final form = showForm ?? _showForm;
+  final sbp = showSbp ?? _showSbp;
+  final s = S.of(context);
+
+  final gateChoice = await gate(context);
+  if (gateChoice == null || !context.mounted) return;
+
+  if (gateChoice) {
+    final formResult = await form(
+      context,
+      onValidate: (_) async => PromoValidation.failure(s.promo_invalid),
+    );
+    if (formResult == null || !context.mounted) return;
+  }
+
+  if (!context.mounted) return;
+  await sbp(context, planId: planId);
+}
+
+Future<bool?> _showGate(BuildContext context) {
+  return showPromoCodeGateBottomSheet(context);
+}
+
+Future<PromoCodeResult?> _showForm(
+  BuildContext context, {
+  Future<PromoValidation> Function(String)? onValidate,
+}) {
+  return ItvioPromoCodeModal.show(context, onValidate: onValidate);
+}
+
+Future<void> _showSbp(BuildContext context, {required int planId}) {
+  return showSbpBanksBottomSheet(context, planId: planId);
+}

lib/features/payment/presentation/widgets/promo_code_gate_bottom_sheet.dart

@@ -0,0 +1,97 @@
+import 'package:eatvio_app/core/theme/custom_text_style.dart';
+import 'package:eatvio_app/core/theme/theme_helper.dart';
+import 'package:eatvio_app/core/widgets/bottom_sheet_handler_bar.dart';
+import 'package:eatvio_app/generated/l10n.dart';
+import 'package:flutter/material.dart';
+
+/// Показывает bottom sheet «У вас есть промокод?» с кнопками Да/Нет.
+///
+/// Возвращает `true` если пользователь нажал «Да», `false` если «Нет»,
+/// `null` если закрыл шторку (бекдроп/крестик).
+Future<bool?> showPromoCodeGateBottomSheet(BuildContext context) {
+  return showModalBottomSheet<bool?>(
+    context: context,
+    isScrollControlled: true,
+    barrierColor: appTheme.transparentBlack,
+    backgroundColor: Colors.transparent,
+    elevation: 0,
+    useSafeArea: true,
+    builder: (_) => Container(
+      decoration: const BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
+      ),
+      child: _PromoCodeGateSheet(),
+    ),
+  );
+}
+
+/// Виджет-гейт выбора промокода.
+class PromoCodeGateBottomSheet extends StatelessWidget {
+  const PromoCodeGateBottomSheet({super.key, required this.onResult});
+
+  final ValueChanged<bool?> onResult;
+
+  @override
+  Widget build(BuildContext context) {
+    final s = S.of(context);
+    return Padding(
+      padding: const EdgeInsets.fromLTRB(16, 8, 16, 20),
+      child: Column(
+        mainAxisSize: MainAxisSize.min,
+        crossAxisAlignment: CrossAxisAlignment.stretch,
+        children: [
+          const Center(child: BottomSheetHandlerBar()),
+          const SizedBox(height: 24),
+          Text(
+            s.have_promo_code,
+            style: TextStyles.headingXLSemibold.copyWith(color: appTheme.black),
+            textAlign: TextAlign.center,
+          ),
+          const SizedBox(height: 24),
+          SizedBox(
+            height: 50,
+            child: FilledButton(
+              onPressed: () => onResult(true),
+              style: FilledButton.styleFrom(
+                backgroundColor: appTheme.blueA400,
+                foregroundColor: appTheme.whiteA700,
+                shape: const StadiumBorder(),
+              ),
+              child: Text(
+                s.yes,
+                style: TextStyles.textMSemibold.copyWith(color: appTheme.whiteA700),
+              ),
+            ),
+          ),
+          const SizedBox(height: 8),
+          SizedBox(
+            height: 50,
+            child: OutlinedButton(
+              onPressed: () => onResult(false),
+              style: OutlinedButton.styleFrom(
+                foregroundColor: appTheme.blueA400,
+                side: BorderSide(color: appTheme.blueA400),
+                shape: const StadiumBorder(),
+              ),
+              child: Text(
+                s.no,
+                style: TextStyles.textMSemibold.copyWith(color: appTheme.blueA400),
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+/// Внутренняя реализация модалки — обёртка над [PromoCodeGateBottomSheet].
+class _PromoCodeGateSheet extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return PromoCodeGateBottomSheet(
+      onResult: (result) => Navigator.of(context).pop(result),
+    );
+  }
+}

lib/features/payment/presentation/widgets/promo_code_modal.dart

@@ -0,0 +1,281 @@
+import 'package:eatvio_app/core/theme/custom_text_style.dart';
+import 'package:eatvio_app/core/theme/theme_helper.dart';
+import 'package:eatvio_app/core/widgets/bottom_sheet_handler_bar.dart';
+import 'package:eatvio_app/generated/l10n.dart';
+import 'package:flutter/material.dart';
+
+/// Результат работы модалки промокода.
+class PromoCodeResult {
+  const PromoCodeResult({this.code});
+
+  /// Применённый промокод или null, если пользователь продолжил без него.
+  final String? code;
+
+  bool get hasPromoCode => code != null;
+}
+
+/// Ответ проверки промокода.
+class PromoValidation {
+  const PromoValidation.success() : error = null;
+  const PromoValidation.failure(this.error);
+
+  final String? error;
+
+  bool get isValid => error == null;
+}
+
+/// Модальное окно ввода промокода.
+class ItvioPromoCodeModal extends StatefulWidget {
+  const ItvioPromoCodeModal({super.key, this.onValidate});
+
+  final Future<PromoValidation> Function(String code)? onValidate;
+
+  static Future<PromoCodeResult?> show(
+    BuildContext context, {
+    Future<PromoValidation> Function(String code)? onValidate,
+  }) {
+    return showModalBottomSheet<PromoCodeResult>(
+      context: context,
+      isScrollControlled: true,
+      useSafeArea: true,
+      backgroundColor: Colors.transparent,
+      builder: (_) => ItvioPromoCodeModal(onValidate: onValidate),
+    );
+  }
+
+  @override
+  State<ItvioPromoCodeModal> createState() => _ItvioPromoCodeModalState();
+}
+
+enum _ModalState { input, loading }
+
+class _ItvioPromoCodeModalState extends State<ItvioPromoCodeModal> {
+  final _controller = TextEditingController();
+  final _focusNode = FocusNode();
+
+  _ModalState _state = _ModalState.input;
+  String? _errorText;
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    _focusNode.dispose();
+    super.dispose();
+  }
+
+  Future<void> _apply() async {
+    final code = _controller.text.trim().toUpperCase();
+
+    if (code.isEmpty) {
+      setState(() => _errorText = S.of(context).enter_promo_code);
+      return;
+    }
+
+    setState(() {
+      _state = _ModalState.loading;
+      _errorText = null;
+    });
+
+    PromoValidation validation;
+    try {
+      validation = widget.onValidate != null
+          ? await widget.onValidate!(code)
+          : const PromoValidation.success();
+    } catch (_) {
+      validation = const PromoValidation.failure(
+        'Не удалось проверить промокод. Попробуйте позже',
+      );
+    }
+
+    if (!mounted) return;
+
+    if (!validation.isValid) {
+      setState(() {
+        _state = _ModalState.input;
+        _errorText = validation.error;
+      });
+      _focusNode.requestFocus();
+      return;
+    }
+
+    Navigator.of(context).pop(PromoCodeResult(code: code));
+  }
+
+  void _onSkip() {
+    Navigator.of(context).pop(const PromoCodeResult());
+  }
+
+  bool get _isLoading => _state == _ModalState.loading;
+
+  @override
+  Widget build(BuildContext context) {
+    final bottomInset = MediaQuery.of(context).viewInsets.bottom;
+    final s = S.of(context);
+
+    return Padding(
+      padding: EdgeInsets.only(bottom: bottomInset),
+      child: Container(
+        width: double.infinity,
+        decoration: const BoxDecoration(
+          color: Colors.white,
+          borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
+        ),
+        padding: const EdgeInsets.fromLTRB(20, 8, 20, 20),
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.stretch,
+          children: [
+            const Center(child: BottomSheetHandlerBar()),
+            const SizedBox(height: 16),
+            _buildHeader(),
+            const SizedBox(height: 16),
+            const Text(
+              'Промокод',
+              style: TextStyle(
+                fontSize: 13,
+                color: Color(0xFF6B7684),
+              ),
+            ),
+            const SizedBox(height: 8),
+            _buildField(),
+            const SizedBox(height: 8),
+            _buildHint(),
+            const SizedBox(height: 12),
+            _buildApplyButton(s),
+            const SizedBox(height: 6),
+            _buildSkipButton(s),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildHeader() {
+    final s = S.of(context);
+    return Text(
+      s.have_promo_code_form,
+      style: TextStyles.headingXLSemibold.copyWith(color: appTheme.black),
+    );
+  }
+
+  Widget _buildField() {
+    final hasError = _errorText != null;
+    final s = S.of(context);
+
+    return AnimatedContainer(
+      duration: const Duration(milliseconds: 150),
+      decoration: BoxDecoration(
+        color: appTheme.gray100,
+        borderRadius: BorderRadius.circular(12),
+        border: Border.all(
+          width: 2,
+          color: hasError
+              ? appTheme.red
+              : (_focusNode.hasFocus
+                  ? appTheme.blueA400
+                  : Colors.transparent),
+        ),
+      ),
+      child: Row(
+        children: [
+          Expanded(
+            child: TextField(
+              controller: _controller,
+              focusNode: _focusNode,
+              enabled: !_isLoading,
+              textCapitalization: TextCapitalization.characters,
+              onChanged: (_) {
+                if (_errorText != null) {
+                  setState(() => _errorText = null);
+                }
+              },
+              onSubmitted: (_) => _apply(),
+              decoration: InputDecoration(
+                hintText: s.enter_promo_code,
+                hintStyle: const TextStyle(
+                  color: Color(0xFF9AA3AF),
+                ),
+                border: InputBorder.none,
+                isDense: true,
+                contentPadding: const EdgeInsets.symmetric(
+                  horizontal: 16,
+                  vertical: 14,
+                ),
+              ),
+              style: const TextStyle(
+                fontSize: 15,
+                color: Color(0xFF24303F),
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildHint() {
+    final String text;
+    final Color color;
+
+    if (_errorText != null) {
+      text = _errorText!;
+      color = appTheme.red;
+    } else {
+      text = '';
+      color = Colors.transparent;
+    }
+
+    return SizedBox(
+      height: 19,
+      child: Text(
+        text,
+        style: TextStyle(fontSize: 13, color: color),
+        overflow: TextOverflow.ellipsis,
+      ),
+    );
+  }
+
+  Widget _buildApplyButton(S s) {
+    return SizedBox(
+      height: 50,
+      child: FilledButton(
+        onPressed: _isLoading ? null : _apply,
+        style: FilledButton.styleFrom(
+          backgroundColor: appTheme.blueA400,
+          foregroundColor: appTheme.whiteA700,
+          disabledBackgroundColor: appTheme.blueA400.withValues(alpha: 0.55),
+          shape: const StadiumBorder(),
+          textStyle: const TextStyle(
+            fontSize: 15,
+            fontWeight: FontWeight.w600,
+          ),
+        ),
+        child: _isLoading
+            ? const SizedBox(
+                width: 20,
+                height: 20,
+                child: CircularProgressIndicator(
+                  strokeWidth: 2.5,
+                  color: Colors.white,
+                ),
+              )
+            : Text(s.apply),
+      ),
+    );
+  }
+
+  Widget _buildSkipButton(S s) {
+    return SizedBox(
+      height: 46,
+      child: TextButton(
+        onPressed: _isLoading ? null : _onSkip,
+        style: TextButton.styleFrom(
+          foregroundColor: appTheme.blueA400,
+          shape: const StadiumBorder(),
+          textStyle: const TextStyle(fontSize: 14),
+        ),
+        child: Text(s.skip),
+      ),
+    );
+  }
+}

lib/generated/intl/messages_en.dart

@@ -123,6 +123,7 @@ class MessageLookup extends MessageLookupByLibrary {
     "another_form_of_minute": MessageLookupByLibrary.simpleMessage("минут"),
     "another_form_of_stage": MessageLookupByLibrary.simpleMessage("этапа"),
     "answer": MessageLookupByLibrary.simpleMessage("Ответить"),
+    "apply": MessageLookupByLibrary.simpleMessage("Apply"),
     "archived": MessageLookupByLibrary.simpleMessage("В архиве"),
     "atLeast3Symbols": MessageLookupByLibrary.simpleMessage(
       "Минимум 3 символа",
@@ -381,6 +382,9 @@ class MessageLookup extends MessageLookupByLibrary {
     "enter_information": MessageLookupByLibrary.simpleMessage(
       "Введите информацию...",
     ),
+    "enter_promo_code": MessageLookupByLibrary.simpleMessage(
+      "Enter promo code",
+    ),
     "error_desc": MessageLookupByLibrary.simpleMessage(
       "Произошла ошибка. Мы уже работаем над её устранением. Попробуйте позже",
     ),
@@ -466,6 +470,12 @@ class MessageLookup extends MessageLookupByLibrary {
     "hatred_description": MessageLookupByLibrary.simpleMessage(
       "Враждебные высказывания",
     ),
+    "have_promo_code": MessageLookupByLibrary.simpleMessage(
+      "Do you have a promo code?",
+    ),
+    "have_promo_code_form": MessageLookupByLibrary.simpleMessage(
+      "Have a promo code?",
+    ),
     "height": MessageLookupByLibrary.simpleMessage("Рост"),
     "height_error": MessageLookupByLibrary.simpleMessage("Введите рост"),
     "height_measurements": MessageLookupByLibrary.simpleMessage("Замер роста"),
@@ -705,6 +715,10 @@ class MessageLookup extends MessageLookupByLibrary {
       "Разница в ценах, это комиссия Итвио",
     ),
     "profile": MessageLookupByLibrary.simpleMessage("Профиль"),
+    "promo_code": MessageLookupByLibrary.simpleMessage("Promo code"),
+    "promo_invalid": MessageLookupByLibrary.simpleMessage(
+      "Promo code not found or expired",
+    ),
     "prostitution": MessageLookupByLibrary.simpleMessage("Проституция"),
     "proteins": MessageLookupByLibrary.simpleMessage("Белки"),
     "public_diet_state": MessageLookupByLibrary.simpleMessage("Публичная"),
@@ -953,6 +967,7 @@ class MessageLookup extends MessageLookupByLibrary {
     "wrong_credentials": MessageLookupByLibrary.simpleMessage(
       "Неверные данные пользователя",
     ),
+    "yes": MessageLookupByLibrary.simpleMessage("Yes"),
     "youCanComplain": MessageLookupByLibrary.simpleMessage(
       "Если вас что-то не устроило, вы можете подать жалобу",
     ),

lib/generated/intl/messages_ru.dart

@@ -45,6 +45,7 @@ class MessageLookup extends MessageLookupByLibrary {
     ),
     "another_form_of_day": MessageLookupByLibrary.simpleMessage("дня"),
     "answer": MessageLookupByLibrary.simpleMessage("Ответить"),
+    "apply": MessageLookupByLibrary.simpleMessage("Применить"),
     "archived": MessageLookupByLibrary.simpleMessage("В архиве"),
     "authentificate": MessageLookupByLibrary.simpleMessage("Войти"),
     "authorization": MessageLookupByLibrary.simpleMessage("Авторизация"),
@@ -154,6 +155,9 @@ class MessageLookup extends MessageLookupByLibrary {
     "enter_information": MessageLookupByLibrary.simpleMessage(
       "Введите информацию...",
     ),
+    "enter_promo_code": MessageLookupByLibrary.simpleMessage(
+      "Введите промокод",
+    ),
     "exit": MessageLookupByLibrary.simpleMessage("Выйти"),
     "expand": MessageLookupByLibrary.simpleMessage("Показать полностью"),
     "fats": MessageLookupByLibrary.simpleMessage("Жиры"),
@@ -184,6 +188,12 @@ class MessageLookup extends MessageLookupByLibrary {
     "gallery": MessageLookupByLibrary.simpleMessage("Галерея"),
     "gr": MessageLookupByLibrary.simpleMessage("гр"),
     "grams": MessageLookupByLibrary.simpleMessage("гр"),
+    "have_promo_code": MessageLookupByLibrary.simpleMessage(
+      "У вас есть промокод?",
+    ),
+    "have_promo_code_form": MessageLookupByLibrary.simpleMessage(
+      "Есть промокод?",
+    ),
     "height_measurements": MessageLookupByLibrary.simpleMessage("Замер роста"),
     "hide": MessageLookupByLibrary.simpleMessage("Свернуть"),
     "hip_circumference": MessageLookupByLibrary.simpleMessage("Обхват бедер"),
@@ -312,6 +322,10 @@ class MessageLookup extends MessageLookupByLibrary {
       "Разница в ценах, это комиссия Итвио",
     ),
     "profile": MessageLookupByLibrary.simpleMessage("Профиль"),
+    "promo_code": MessageLookupByLibrary.simpleMessage("Промокод"),
+    "promo_invalid": MessageLookupByLibrary.simpleMessage(
+      "Промокод не найден или истёк",
+    ),
     "proteins": MessageLookupByLibrary.simpleMessage("Белки"),
     "public_diet_state": MessageLookupByLibrary.simpleMessage("Публичная"),
     "publish": MessageLookupByLibrary.simpleMessage("Опубликовать"),
@@ -413,6 +427,7 @@ class MessageLookup extends MessageLookupByLibrary {
     "wrong_credentials": MessageLookupByLibrary.simpleMessage(
       "Неверные данные пользователя",
     ),
+    "yes": MessageLookupByLibrary.simpleMessage("Да"),
     "you_will_get": MessageLookupByLibrary.simpleMessage("Вы получите"),
     "your_blood_pressure": MessageLookupByLibrary.simpleMessage(
       "Ваше артериальное давление?",

lib/generated/l10n.dart

@@ -4178,6 +4178,61 @@ class S {
       args: [],
     );
   }
+
+  /// `Yes`
+  String get yes {
+    return Intl.message('Yes', name: 'yes', desc: '', args: []);
+  }
+
+  /// `Apply`
+  String get apply {
+    return Intl.message('Apply', name: 'apply', desc: '', args: []);
+  }
+
+  /// `Do you have a promo code?`
+  String get have_promo_code {
+    return Intl.message(
+      'Do you have a promo code?',
+      name: 'have_promo_code',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `Have a promo code?`
+  String get have_promo_code_form {
+    return Intl.message(
+      'Have a promo code?',
+      name: 'have_promo_code_form',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `Promo code`
+  String get promo_code {
+    return Intl.message('Promo code', name: 'promo_code', desc: '', args: []);
+  }
+
+  /// `Enter promo code`
+  String get enter_promo_code {
+    return Intl.message(
+      'Enter promo code',
+      name: 'enter_promo_code',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `Promo code not found or expired`
+  String get promo_invalid {
+    return Intl.message(
+      'Promo code not found or expired',
+      name: 'promo_invalid',
+      desc: '',
+      args: [],
+    );
+  }
 }
 
 class AppLocalizationDelegate extends LocalizationsDelegate<S> {

lib/l10n/intl_en.arb

@@ -491,6 +491,13 @@
   "video_call_permission_camera_title": "Camera access",
   "video_call_permission_camera_description": "Allow camera access so others can see you during the video call. If you declined, you can enable it in system settings.",
   "video_call_permission_microphone_title": "Microphone access",
-  "video_call_permission_microphone_description": "Allow microphone access so others can hear you during the video call. If you declined, you can enable it in system settings."
+  "video_call_permission_microphone_description": "Allow microphone access so others can hear you during the video call. If you declined, you can enable it in system settings.",
+  "yes": "Yes",
+  "apply": "Apply",
+  "have_promo_code": "Do you have a promo code?",
+  "have_promo_code_form": "Have a promo code?",
+  "promo_code": "Promo code",
+  "enter_promo_code": "Enter promo code",
+  "promo_invalid": "Promo code not found or expired"
 }
 

lib/l10n/intl_ru.arb

@@ -236,5 +236,12 @@
   "video_call_permission_microphone_description": "Чтобы вас слышали во время видеозвонка, разрешите доступ к микрофону. При отказе можно включить доступ в настройках устройства.",
   "choose_bank_for_payment": "Выберите банк",
   "no_installed_banks": "Нет установленных банков",
-  "sbp_payment_error": "Не удалось начать оплату. Попробуйте позже"
+  "sbp_payment_error": "Не удалось начать оплату. Попробуйте позже",
+  "yes": "Да",
+  "apply": "Применить",
+  "have_promo_code": "У вас есть промокод?",
+  "have_promo_code_form": "Есть промокод?",
+  "promo_code": "Промокод",
+  "enter_promo_code": "Введите промокод",
+  "promo_invalid": "Промокод не найден или истёк"
 }