TRON -> TRON_MAINNET

frontend/pshared/lib/models/file/downloaded_file.dart

@@ -0,0 +1,11 @@
+class DownloadedFile {
+  final List<int> bytes;
+  final String filename;
+  final String mimeType;
+
+  const DownloadedFile({
+    required this.bytes,
+    required this.filename,
+    required this.mimeType,
+  });
+}

frontend/pshared/lib/models/payment/operation.dart

@@ -10,6 +10,7 @@ class OperationItem {
   final double toAmount;
   final String toCurrency;
   final String payId;
+  final String? paymentRef;
   final String? cardNumber;
   final PaymentMethod? paymentMethod;
   final String name;
@@ -24,10 +25,11 @@ class OperationItem {
     required this.toAmount,
     required this.toCurrency,
     required this.payId,
+    this.paymentRef,
     this.cardNumber,
     this.paymentMethod,
     required this.name,
     required this.date,
     required this.comment,
   });
-}
+}

frontend/pshared/lib/service/authorization/service.dart

@@ -79,6 +79,11 @@ class AuthorizationService {
     return httpr.getGETResponse(service, url, authToken: token);
   }
 
+  static Future<httpr.BinaryResponse> getGETBinaryResponse(String service, String url) async {
+    final token = await TokenService.getAccessTokenSafe();
+    return httpr.getBinaryGETResponse(service, url, authToken: token);
+  }
+
   static Future<Map<String, dynamic>> getPOSTResponse(String service, String url, Map<String, dynamic> body) async {
     final token = await TokenService.getAccessTokenSafe();
     return httpr.getPOSTResponse(service, url, body, authToken: token);

frontend/pshared/lib/service/payment/documents.dart

@@ -0,0 +1,44 @@
+import 'package:logging/logging.dart';
+
+import 'package:pshared/models/file/downloaded_file.dart';
+import 'package:pshared/service/authorization/service.dart';
+import 'package:pshared/service/services.dart';
+
+
+class PaymentDocumentsService {
+  static final _logger = Logger('service.payment_documents');
+  static const String _objectType = Services.payments;
+
+  static Future<DownloadedFile> getAct(String organizationRef, String paymentRef) async {
+    final encodedRef = Uri.encodeQueryComponent(paymentRef);
+    final url = '/documents/act/$organizationRef?payment_ref=$encodedRef';
+    _logger.fine('Downloading act document for payment $paymentRef');
+    final response = await AuthorizationService.getGETBinaryResponse(_objectType, url);
+    final filename = _filenameFromDisposition(response.header('content-disposition')) ??
+        'act_$paymentRef.pdf';
+    final mimeType = response.header('content-type') ?? 'application/pdf';
+    return DownloadedFile(
+      bytes: response.bytes,
+      filename: filename,
+      mimeType: mimeType,
+    );
+  }
+
+  static String? _filenameFromDisposition(String? disposition) {
+    if (disposition == null || disposition.isEmpty) return null;
+    final parts = disposition.split(';');
+    for (final part in parts) {
+      final trimmed = part.trim();
+      if (trimmed.toLowerCase().startsWith('filename=')) {
+        var value = trimmed.substring('filename='.length).trim();
+        if (value.startsWith('"') && value.endsWith('"') && value.length > 1) {
+          value = value.substring(1, value.length - 1);
+        }
+        if (value.isNotEmpty) {
+          return value;
+        }
+      }
+    }
+    return null;
+  }
+}

frontend/pshared/lib/utils/http/requests.dart

@@ -163,3 +163,49 @@ Future<FileUploaded?> getFileUploadResponse(String service, String url, String f
   final streamedResponse = await _fileUploadRequest(service, url, fileName, fileType, mediaType, bytes, authToken: authToken);
   return FileUploaded.fromJson(await _handleResponse(http.Response.fromStream(streamedResponse)));
 }
+
+class BinaryResponse {
+  final List<int> bytes;
+  final Map<String, String> headers;
+  final int statusCode;
+
+  const BinaryResponse({
+    required this.bytes,
+    required this.headers,
+    required this.statusCode,
+  });
+
+  String? header(String key) => headers[key.toLowerCase()];
+}
+
+Future<BinaryResponse> getBinaryGETResponse(String service, String url, {String? authToken}) async {
+  late http.Response response;
+  try {
+    response = await getRequest(service, url, authToken: authToken);
+  } catch (e) {
+    throw ConnectivityError(message: e.toString());
+  }
+
+  if (response.statusCode < 200 || response.statusCode >= 300) {
+    late HTTPMessage message;
+    try {
+      message = HTTPMessage.fromJson(json.decode(response.body));
+    } catch (e) {
+      _throwConnectivityError(response, e);
+    }
+
+    late ErrorResponse error;
+    try {
+      error = ErrorResponse.fromJson(message.data);
+    } catch (e) {
+      _throwConnectivityError(response, e);
+    }
+    throw error;
+  }
+
+  return BinaryResponse(
+    bytes: response.bodyBytes,
+    headers: response.headers,
+    statusCode: response.statusCode,
+  );
+}

frontend/pshared/pubspec.yaml

@@ -8,7 +8,7 @@ environment:
 # Add regular dependencies here.
 dependencies:
   analyzer: ^10.0.0
-  json_annotation: ^4.9.0
+  json_annotation: ^4.10.0
   http: ^1.1.0
   provider: ^6.0.5
   flutter:

frontend/pweb/lib/l10n/en.arb

@@ -488,6 +488,14 @@
   "howItWorks": "How it works?",
   "exampleTitle": "File Format & Sample",
   "downloadSampleCSV": "Download sample.csv",
+  "downloadAct": "Download Act",
+  "@downloadAct": {
+    "description": "Button label for downloading the acceptance act PDF"
+  },
+  "downloadActError": "Failed to download act",
+  "@downloadActError": {
+    "description": "Error message shown when act download fails"
+  },
   "tokenColumn": "Token (required)",
   "currency": "Currency",
   "amount": "Amount",

frontend/pweb/lib/l10n/ru.arb

@@ -488,6 +488,14 @@
   "howItWorks": "Как это работает?",
   "exampleTitle": "Формат файла и образец",
   "downloadSampleCSV": "Скачать sample.csv",
+  "downloadAct": "Скачать акт",
+  "@downloadAct": {
+    "description": "Button label for downloading the acceptance act PDF"
+  },
+  "downloadActError": "Не удалось скачать акт",
+  "@downloadActError": {
+    "description": "Error message shown when act download fails"
+  },
   "tokenColumn": "Токен (обязательно)",
   "currency": "Валюта",
   "amount": "Сумма",

frontend/pweb/lib/pages/report/page.dart

@@ -104,6 +104,7 @@ class _OperationHistoryPageState extends State<OperationHistoryPage> {
       toAmount: toAmount,
       toCurrency: toCurrency,
       payId: payId,
+      paymentRef: payment.paymentRef,
       cardNumber: null,
       name: name,
       date: _resolvePaymentDate(payment),
@@ -141,6 +142,7 @@ class _OperationHistoryPageState extends State<OperationHistoryPage> {
         return OperationStatus.processing;
 
       case 'settled':
+      case 'success':
         return OperationStatus.success;
 
       case 'failed':

frontend/pweb/lib/pages/report/table/row.dart

@@ -1,23 +1,43 @@
 import 'package:flutter/material.dart';
 
+import 'package:provider/provider.dart';
+
 import 'package:pshared/models/payment/operation.dart';
+import 'package:pshared/models/payment/status.dart';
+import 'package:pshared/provider/organizations.dart';
+import 'package:pshared/service/payment/documents.dart';
 import 'package:pshared/utils/currency.dart';
 
+import 'package:pweb/generated/i18n/app_localizations.dart';
 import 'package:pweb/pages/report/table/badge.dart';
+import 'package:pweb/utils/download.dart';
+import 'package:pweb/utils/error/snackbar.dart';
 
 
 class OperationRow {
   static DataRow build(OperationItem op, BuildContext context) {
     final isUnknownDate = op.date.millisecondsSinceEpoch == 0;
     final localDate = op.date.toLocal();
+    final loc = AppLocalizations.of(context)!;
     final dateLabel = isUnknownDate
         ? '-'
         : '${TimeOfDay.fromDateTime(localDate).format(context)}\n'
           '${localDate.toIso8601String().split("T").first}';
 
+    final canDownload = op.status == OperationStatus.success &&
+        (op.paymentRef ?? '').trim().isNotEmpty;
+
+    final documentCell = canDownload
+        ? TextButton.icon(
+            onPressed: () => _downloadAct(context, op),
+            icon: const Icon(Icons.download),
+            label: Text(loc.downloadAct),
+          )
+        : Text(op.fileName ?? '');
+
     return DataRow(cells: [
       DataCell(OperationStatusBadge(status: op.status)),
-      DataCell(Text(op.fileName ?? '')),
+      DataCell(documentCell),
       DataCell(Text('${amountToString(op.amount)} ${op.currency}')),
       DataCell(Text('${amountToString(op.toAmount)} ${op.toCurrency}')),
       DataCell(Text(op.payId)),
@@ -27,4 +47,28 @@ class OperationRow {
       DataCell(Text(op.comment)),
     ]);
   }
+
+  static Future<void> _downloadAct(BuildContext context, OperationItem op) async {
+    final organizations = context.read<OrganizationsProvider>();
+    if (!organizations.isOrganizationSet) {
+      return;
+    }
+    final paymentRef = (op.paymentRef ?? '').trim();
+    if (paymentRef.isEmpty) {
+      return;
+    }
+
+    final loc = AppLocalizations.of(context)!;
+    await executeActionWithNotification(
+      context: context,
+      action: () async {
+        final file = await PaymentDocumentsService.getAct(
+          organizations.current.id,
+          paymentRef,
+        );
+        await downloadFile(file);
+      },
+      errorMessage: loc.downloadActError,
+    );
+  }
 }

frontend/pweb/lib/utils/download.dart

@@ -0,0 +1,25 @@
+import 'dart:typed_data';
+
+import 'package:universal_html/html.dart' as html;
+
+import 'package:pshared/models/file/downloaded_file.dart';
+
+
+Future<void> downloadFile(DownloadedFile file) async {
+  final blob = html.Blob(
+    [Uint8List.fromList(file.bytes)],
+    file.mimeType,
+  );
+
+  final url = html.Url.createObjectUrlFromBlob(blob);
+
+  final anchor = html.AnchorElement(href: url)
+    ..download = file.filename
+    ..style.display = 'none';
+
+  html.document.body!.append(anchor);
+  anchor.click();
+  anchor.remove();
+
+  html.Url.revokeObjectUrl(url);
+}

frontend/pweb/pubspec.yaml

@@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 2.5.0+495
+version: 2.6.0+507
 
 environment:
   sdk: ^3.8.1
@@ -53,7 +53,7 @@ dependencies:
   collection: ^1.18.0
   icann_tlds: ^1.0.0
   flutter_timezone: ^5.0.1
-  json_annotation: ^4.9.0
+  json_annotation: ^4.10.0
   go_router: ^17.0.0
   jovial_svg: ^1.1.23
   cached_network_image: ^3.4.1
@@ -70,6 +70,7 @@ dependencies:
   dotted_border: ^3.1.0
   qr_flutter: ^4.1.0
   duration: ^4.0.3
+  universal_html: ^2.3.0