update voucher detail

lib/configs/api_paths.dart

@@ -27,4 +27,5 @@ class APIPaths {
   static const String verifyDeleteAccount = "/user/api/v2.0/me/delete/verify";
   static const String getProducts = "/product/api/v2.0/products";
   static const String getSearchProducts = "/product/api/v2.0/products/search";
-}
+  static const String getProductDetail = "/product/api/v2.0/products/%@";
+}
\ No newline at end of file

lib/extensions/date_format.dart

+class DateFormat {
+  static const String serverTimezone = "yyyy-MM-dd'T'HH:mm:ssZ";
+  static const String server = "yyyy-MM-dd HH:mm:ss";
+  static const String ddMMyyyy = "dd/MM/yyyy";
+}

lib/extensions/num_extension.dart

+import 'package:intl/intl.dart';
+
+extension NumExtension on num {
+  String money([CurrencyUnit currency = CurrencyUnit.vnd]) {
+    final int maximumFractionDigits =
+    (currency == CurrencyUnit.vnd) ? 0 : 2;
+    return "${numberFraction(maximumFractionDigits)}${currency.symbol}";
+  }
+
+  String numberFraction(int maxFractionDigits) {
+    final formatter = NumberFormat.decimalPattern('vi_VN')
+      ..maximumFractionDigits = maxFractionDigits
+      ..minimumFractionDigits = 0;
+    return formatter.format(this);
+  }
+}
+
+enum CurrencyUnit {
+  vnd(' đ'),
+  usd(' USD'),
+  eur(' EUR'),
+  none(' '),
+  point(' điểm');
+
+  final String symbol;
+  const CurrencyUnit(this.symbol);
+}
\ No newline at end of file

lib/extensions/string_extension.dart

 import 'dart:convert';
 import 'package:crypto/crypto.dart';
 import 'package:flutter/material.dart';
+import 'package:intl/intl.dart' as intl;
+import 'date_format.dart';
 
 extension PhoneValidator on String {
   bool isPhoneValid() {
@@ -30,3 +32,15 @@ Color parseHexColor(String hexString, {Color fallbackColor = Colors.grey}) {
     return fallbackColor;
   }
 }
+
+extension StringDateExtension on String {
+  DateTime? toDate({required String format}) {
+    if (trim().isEmpty) return null;
+    try {
+      return intl.DateFormat(format).parseStrict(this);
+    } catch (e) {
+      print('❌ Date parse failed for "$this" with format "$format": $e');
+      return null;
+    }
+  }
+}
\ No newline at end of file

lib/networking/restful_api_request.dart

@@ -277,4 +277,14 @@ extension RestfullAPIClientAllApi on RestfulAPIClient {
             (data) =>SearchProductResponseModel.fromJson(data as Json),
     );
   }
+
+  Future<BaseResponseModel<ProductModel>> getProduct(int id) async {
+    final path = APIPaths.getProductDetail.replaceAll("%@", id.toString());
+    return requestNormal(
+      path,
+      Method.GET,
+      {},
+          (data) =>ProductModel.fromJson(data as Json),
+    );
+  }
 }

lib/screen/flash_sale/preview_flash_sale_model.dart

+import 'package:json_annotation/json_annotation.dart';
+import 'package:intl/intl.dart';
+
+part 'preview_flash_sale_model.g.dart';
+@JsonSerializable()
+class PreviewFlashSale {
+  final int? id;
+  @JsonKey(name: 'countdown_second')
+  final int? countdownSecond;
+  @JsonKey(name: 'start_time')
+  final String? startTime;
+  @JsonKey(name: 'end_time')
+  final String? endTime;
+  @JsonKey(name: 'fs_quantity_total')
+  final int? fsQuantityTotal;
+  @JsonKey(name: 'fs_quantity_sold')
+  final int? fsQuantitySold;
+  @JsonKey(name: 'percent_tag')
+  final int? percentTag;
+  @JsonKey(name: 'reward_type')
+  final String? rewardType;
+  @JsonKey(name: 'reward_content')
+  final String? rewardContent;
+  @JsonKey(name: 'opening_content')
+  final String? openingContent;
+  final String? name;
+  @JsonKey(name: 'reward_popup')
+  final String? rewardPopup;
+  final int? price;
+  @JsonKey(name: 'is_flash_sale')
+  final bool? isFlashSale;
+  @JsonKey(name: 'is_flash_sale_price')
+  final bool? isFlashSalePrice;
+  @JsonKey(name: 'header_img')
+  final String? headerImg;
+  @JsonKey(name: 'fs_quantity_per_person_total')
+  final int? fsQuantityPerPersonTotal;
+  @JsonKey(name: 'fs_quantity_per_person_bought')
+  final int? fsQuantityPerPersonBought;
+
+  PreviewFlashSale({
+    this.id,
+    this.countdownSecond,
+    this.startTime,
+    this.endTime,
+    this.fsQuantityTotal,
+    this.fsQuantitySold,
+    this.percentTag,
+    this.rewardType,
+    this.rewardContent,
+    this.openingContent,
+    this.name,
+    this.rewardPopup,
+    this.price,
+    this.isFlashSale,
+    this.isFlashSalePrice,
+    this.headerImg,
+    this.fsQuantityPerPersonTotal,
+    this.fsQuantityPerPersonBought,
+  });
+
+  /// Factory for json_serializable
+  factory PreviewFlashSale.fromJson(Map<String, dynamic> json) => _$PreviewFlashSaleFromJson(json);
+
+  Map<String, dynamic> toJson() => _$PreviewFlashSaleToJson(this);
+
+  /// Computed properties (converted from Swift logic)
+  double? get progress {
+    if (fsQuantityTotal != null && fsQuantitySold != null && fsQuantityTotal! > 0) {
+      return fsQuantitySold! / fsQuantityTotal!;
+    }
+    return null;
+  }
+
+  bool get isSoldOut => (fsQuantitySold ?? 0) == (fsQuantityTotal ?? 0);
+
+  String get textQuantitySold => isSoldOut ? 'Đã bán hết' : 'Đã bán ${fsQuantitySold ?? 0}';
+
+  bool get isHasReward => rewardContent != null && rewardContent!.isNotEmpty;
+
+  String? get desTime {
+    if (isGoingOn == null) return null;
+    return isGoingOn! ? 'Kết thúc trong' : 'Bắt đầu sau';
+  }
+
+  int? get maximumQuantityPurchased {
+    if (fsQuantityPerPersonTotal != null) {
+      return (fsQuantityPerPersonTotal! - (fsQuantityPerPersonBought ?? 0)).clamp(0, fsQuantityPerPersonTotal!);
+    }
+    return null;
+  }
+
+  DateTime? get startDate => _parseDate(startTime)?.subtract(const Duration(seconds: 1));
+
+  DateTime? get endDate => _parseDate(endTime)?.add(const Duration(seconds: 1));
+
+  bool? get isGoingOn {
+    final now = DateTime.now();
+    if (startDate != null && endDate != null) {
+      return now.isAfter(startDate!) && now.isBefore(endDate!);
+    }
+    return null;
+  }
+
+  Duration? get countdownLocal {
+    if (isGoingOn == null) return null;
+    final now = DateTime.now();
+    if (isGoingOn!) {
+      return endDate?.difference(now);
+    } else {
+      return startDate?.difference(now);
+    }
+  }
+
+  bool get isHidenOpeningContent =>
+      openingContent == null || openingContent!.isEmpty || isGoingOn == true || isFlashSalePrice == true;
+
+  String? get imageReward {
+    if (rewardType == 'point') {
+      return 'assets/images/ic_point.png';
+    }
+    return 'assets/images/ic_gift_flash_sale.png';
+  }
+
+  /// Private helper
+  DateTime? _parseDate(String? dateStr) {
+    if (dateStr == null) return null;
+    try {
+      return DateFormat("yyyy-MM-dd'T'HH:mm:ss").parse(dateStr);
+    } catch (_) {
+      return null;
+    }
+  }
+}
\ No newline at end of file

lib/screen/flash_sale/preview_flash_sale_model.g.dart

+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'preview_flash_sale_model.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+PreviewFlashSale _$PreviewFlashSaleFromJson(Map<String, dynamic> json) =>
+    PreviewFlashSale(
+      id: (json['id'] as num?)?.toInt(),
+      countdownSecond: (json['countdown_second'] as num?)?.toInt(),
+      startTime: json['start_time'] as String?,
+      endTime: json['end_time'] as String?,
+      fsQuantityTotal: (json['fs_quantity_total'] as num?)?.toInt(),
+      fsQuantitySold: (json['fs_quantity_sold'] as num?)?.toInt(),
+      percentTag: (json['percent_tag'] as num?)?.toInt(),
+      rewardType: json['reward_type'] as String?,
+      rewardContent: json['reward_content'] as String?,
+      openingContent: json['opening_content'] as String?,
+      name: json['name'] as String?,
+      rewardPopup: json['reward_popup'] as String?,
+      price: (json['price'] as num?)?.toInt(),
+      isFlashSale: json['is_flash_sale'] as bool?,
+      isFlashSalePrice: json['is_flash_sale_price'] as bool?,
+      headerImg: json['header_img'] as String?,
+      fsQuantityPerPersonTotal:
+          (json['fs_quantity_per_person_total'] as num?)?.toInt(),
+      fsQuantityPerPersonBought:
+          (json['fs_quantity_per_person_bought'] as num?)?.toInt(),
+    );
+
+Map<String, dynamic> _$PreviewFlashSaleToJson(PreviewFlashSale instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'countdown_second': instance.countdownSecond,
+      'start_time': instance.startTime,
+      'end_time': instance.endTime,
+      'fs_quantity_total': instance.fsQuantityTotal,
+      'fs_quantity_sold': instance.fsQuantitySold,
+      'percent_tag': instance.percentTag,
+      'reward_type': instance.rewardType,
+      'reward_content': instance.rewardContent,
+      'opening_content': instance.openingContent,
+      'name': instance.name,
+      'reward_popup': instance.rewardPopup,
+      'price': instance.price,
+      'is_flash_sale': instance.isFlashSale,
+      'is_flash_sale_price': instance.isFlashSalePrice,
+      'header_img': instance.headerImg,
+      'fs_quantity_per_person_total': instance.fsQuantityPerPersonTotal,
+      'fs_quantity_per_person_bought': instance.fsQuantityPerPersonBought,
+    };

lib/screen/voucher/detail/voucher_detail_screen.dart

+import 'package:flutter/material.dart';
+import 'package:flutter_widget_from_html/flutter_widget_from_html.dart';
+import 'package:mypoint_flutter_app/extensions/date_format.dart';
+import 'package:mypoint_flutter_app/extensions/num_extension.dart';
+import 'package:mypoint_flutter_app/extensions/string_extension.dart';
+import '../../../widgets/back_button.dart';
+import '../models/product_model.dart';
+import 'voucher_detail_viewmodel.dart';
+import 'package:get/get.dart';
+
+class VoucherDetailScreen extends StatefulWidget {
+  const VoucherDetailScreen({super.key});
+
+  @override
+  _VoucherDetailScreenState createState() => _VoucherDetailScreenState();
+}
+
+class _VoucherDetailScreenState extends State<VoucherDetailScreen> {
+  late final int productId;
+  late final VoucherDetailViewModel _viewModel;
+
+  @override
+  void initState() {
+    super.initState();
+    final args = Get.arguments;
+    if (args is int) {
+      productId = args;
+    } else if (args is Map) {
+      productId = args['productId'];
+    }
+    _viewModel = Get.put(VoucherDetailViewModel(productId: productId));
+    _viewModel.getProductDetail();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: Obx(() {
+        if (_viewModel.isLoading.value) {
+          return const Center(child: CircularProgressIndicator());
+        }
+        final product = _viewModel.product.value;
+        if (product == null) {
+          return const Center(child: Text("Không tìm thấy sản phẩm"));
+        }
+        return Stack(
+          children: [
+            SingleChildScrollView(
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  _buildHeader(product),
+                  _buildInfo(product),
+                  _buildDetailBlock(product),
+                  _buildConditionBlock(product),
+                ],
+              ),
+            ),
+            SafeArea(
+              child: Padding(
+                padding: const EdgeInsets.all(8),
+                child: CustomBackButton(),
+              ),
+            ),
+          ],
+        );
+      }),
+    );
+  }
+
+  Widget _buildHeader(ProductModel product) {
+    return AspectRatio(
+      aspectRatio: 16 / 9,
+      child: Image.network(
+        product.banner?.url ?? '',
+        fit: BoxFit.cover,
+        errorBuilder: (_, __, ___) => Image.asset('assets/images/sample.png', fit: BoxFit.cover),
+      ),
+    );
+  }
+
+  Widget _buildInfo(ProductModel product) {
+    return Container(
+      padding: const EdgeInsets.all(16),
+      decoration: const BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.vertical(top: Radius.circular(16)),
+      ),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Text(product.content?.name ?? '', style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold)),
+          const SizedBox(height: 8),
+          Row(
+            children: [
+              const Text('Hạn dùng: ', style: TextStyle(color: Colors.grey)),
+              Text(product.expire ?? "", style: const TextStyle(color: Colors.red)),
+            ],
+          ),
+          if (!(product.inStock ?? true))
+            Container(
+              margin: const EdgeInsets.only(top: 8),
+              padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 4),
+              decoration: BoxDecoration(color: Colors.grey.shade300, borderRadius: BorderRadius.circular(8)),
+              child: const Text('Tạm hết', style: TextStyle(color: Colors.red)),
+            ),
+          const Divider(height: 24),
+          Row(
+            children: [
+              CircleAvatar(
+                radius: 16,
+                backgroundImage: NetworkImage(product.brand?.logo ?? ''),
+                backgroundColor: Colors.transparent,
+              ),
+              const SizedBox(width: 8),
+              Expanded(
+                child: Text(product.brand?.name ?? '', style: const TextStyle(fontSize: 14)),
+              ),
+              _buildPointTag(product),
+            ],
+          )
+        ],
+      ),
+    );
+  }
+
+  Widget _buildPointTag(ProductModel product) {
+    final priceText = product.amountToBePaid?.money() ?? "";
+    final isFree = (product.price?.value ?? 0) == 0;
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 2),
+      decoration: BoxDecoration(
+        color: isFree ? Colors.orange.shade50 : Colors.red.shade100,
+        borderRadius: BorderRadius.circular(12),
+      ),
+      child: Row(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          Image.asset('assets/images/ic_point.png', width: 20, height: 20),
+          const SizedBox(width: 4),
+          Text(
+            priceText,
+            style: TextStyle(
+              fontSize: 12,
+              color: isFree ? Colors.orange : Colors.red,
+              fontWeight: FontWeight.w500,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildDetailBlock(ProductModel product) {
+    return _buildTextBlock("Chi tiết ưu đãi", product.content?.detail);
+  }
+
+  Widget _buildConditionBlock(ProductModel product) {
+    return _buildTextBlock("Điều kiện áp dụng", product.content?.termAndCondition);
+  }
+
+  Widget _buildTextBlock(String title, String? content) {
+    if (content == null || content.isEmpty) return const SizedBox();
+    return Padding(
+      padding: const EdgeInsets.fromLTRB(16, 12, 16, 0),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Text(title, style: const TextStyle(fontSize: 16, fontWeight: FontWeight.bold)),
+          const SizedBox(height: 8),
+          HtmlWidget(content),
+        ],
+      ),
+    );
+  }
+}

lib/screen/voucher/detail/voucher_detail_viewmodel.dart

+import 'package:get/get.dart';
+import 'package:mypoint_flutter_app/networking/restful_api_request.dart';
+import '../../../base/restful_api_viewmodel.dart';
+import '../models/product_model.dart';
+
+class VoucherDetailViewModel extends RestfulApiViewModel {
+  final int productId;
+  VoucherDetailViewModel({required this.productId});
+
+  var product = Rxn<ProductModel>();
+  var isLoading = false.obs;
+
+  @override
+  void onInit() {
+    super.onInit();
+    getProductDetail();
+  }
+
+  Future<void> getProductDetail() async {
+    if (isLoading.value) return;
+    try {
+      isLoading.value = true;
+      final response = await client.getProduct(productId);
+      product.value = response.data;
+    } catch (error) {
+      print("Error fetching product detail: $error");
+    } finally {
+      isLoading.value = false;
+    }
+  }
+
+}

lib/screen/voucher/models/cash_type.dart

@@ -16,11 +16,3 @@ extension CashTypeExt on CashType {
     }
   }
 }
-
-extension IntExtension on int {
-  String makeDisplayPrice(CashType type) {
-    if (this == 0) return "Miễn phí";
-    if (type == CashType.point) return "$this điểm";
-    return "$this đ";
-  }
-}

lib/screen/voucher/models/my_product_status_type.dart

+enum MyProductStatusType {
+  waiting,
+  used,
+  expired;
+
+  static MyProductStatusType fromRaw(int raw) {
+    switch (raw) {
+      case 0:
+        return MyProductStatusType.waiting;
+      case 1:
+        return MyProductStatusType.used;
+      case 2:
+        return MyProductStatusType.expired;
+      default:
+        return MyProductStatusType.waiting; // fallback
+    }
+  }
+
+  String get rawText {
+    switch (this) {
+      case MyProductStatusType.waiting:
+        return "";
+      case MyProductStatusType.used:
+        return "Đã sử dụng";
+      case MyProductStatusType.expired:
+        return "Hết hạn";
+    }
+  }
+
+  String get titleNoData {
+    switch (this) {
+      case MyProductStatusType.waiting:
+        return "voucher.my_voucher_empty";
+      case MyProductStatusType.used:
+        return "voucher.used_voucher_empty";
+      case MyProductStatusType.expired:
+        return "voucher.expired_voucher_empty";
+    }
+  }
+
+  // Nếu bạn cần thêm color hoặc các property khác thì viết tiếp ở đây
+}
\ No newline at end of file

lib/screen/voucher/models/product_content_model.dart

@@ -7,6 +7,7 @@ class ProductContentModel {
   final String? language;
   final String? name;
   final String? detail;
+  @JsonKey(name: 'term_and_condition')
   final String? termAndCondition;
 
   ProductContentModel({

lib/screen/voucher/models/product_content_model.g.dart

@@ -11,7 +11,7 @@ ProductContentModel _$ProductContentModelFromJson(Map<String, dynamic> json) =>
       language: json['language'] as String?,
       name: json['name'] as String?,
       detail: json['detail'] as String?,
-      termAndCondition: json['termAndCondition'] as String?,
+      termAndCondition: json['term_and_condition'] as String?,
     );
 
 Map<String, dynamic> _$ProductContentModelToJson(
@@ -20,5 +20,5 @@ Map<String, dynamic> _$ProductContentModelToJson(
   'language': instance.language,
   'name': instance.name,
   'detail': instance.detail,
-  'termAndCondition': instance.termAndCondition,
+  'term_and_condition': instance.termAndCondition,
 };