[414] 트랜잭션 임시 저장

assets/i18n/en.i18n.yaml

@@ -168,6 +168,39 @@ donation:
   ln_address_pow: "[email protected]"
   ln_invoice_api_error: "Failed to generate Lightning invoice."
 
+transaction_draft:
+  title: "Temporary Transaction"
+  empty_message: "No temporary transaction saved"
+  deleted_wallet: "Deleted Wallet"
+  save: "Temporary Save"
+  load: "Load Transaction"
+  recipient_batch_address: "$address and $count other addresses"
+  fee_rate: "Fee Rate"
+  sats_per_vbyte: "sat/vB"
+  dialog:
+    transaction_draft_saved_send_screen: "Transaction Draft Saved"
+    transaction_draft_saved_send_screen_description: "The transaction information has been temporarily saved. Would you like to move to the list now?"
+    transaction_draft_saved_broadcast_screen: "Transaction Draft Saved"
+    transaction_draft_saved_description_broadcast_screen: "The transaction has been temporarily saved. Would you like to move to the list now?"
+    transaction_draft_save_failed: "Transaction Draft Save Failed"
+    transaction_draft_already_exists: "Transaction Draft Already Exists"
+    transaction_draft_empty_required_fields: "Please enter the address and amount to send."
+    transaction_unavailable_to_sign: "Transaction Unavailable to Sign"
+    transaction_already_used_utxo_included: "Transaction Already Used UTXO Included. Would you like to delete the saved transaction?"
+    transaction_has_been_locked_utxo_included: "Locked UTXO Included. Would you like to delete the saved transaction?"
+    transaction_draft_delete: "Delete Temporary Transaction"
+    transaction_draft_delete_description: "Would you like to delete the temporary transaction? Once deleted, it cannot be restored."
+    transaction_draft_delete_failed: "Transaction Draft Delete Failed"
+    transaction_draft_delete_completed: "Transaction Draft Delete Completed"
+    transaction_draft_delete_completed_description: "The temporary transaction has been deleted."
+    cancel: "Cancel"
+    remove: "Remove"
+    move: "Move"
+    confirm: "Confirm"
+  signed: "Signed"
+  unsigned: "Unsigned"
+  max: "Max"
+
 # lib/enums
 transaction_enums:
   high_priority: "Fast"

assets/i18n/jp.i18n.yaml

@@ -168,6 +168,39 @@ donation:
   ln_address_pow: "[email protected]"
   ln_invoice_api_error: "ライトニングインボイスの生成に失敗しました。"
 
+transaction_draft:
+  title: "一時保存トランザクション"
+  empty_message: "一時保存されたトランザクションがありません"
+  deleted_wallet: "削除されたウォレット"
+  save: "一時保存"
+  load: "読み込み"
+  recipient_batch_address: "$address および $count 個の他のアドレス"
+  fee_rate: "手数料率"
+  sats_per_vbyte: "sat/vB"
+  dialog:
+    transaction_draft_saved_send_screen: "送信情報保存完了"
+    transaction_draft_saved_send_screen_description: "後で署名できるように送信情報を一時保存しました。\n今すぐリストに移動しますか？"
+    transaction_draft_saved_broadcast_screen: "トランザクション保存完了"
+    transaction_draft_saved_description_broadcast_screen: "後で送信できるようにトランザクションを一時保存しました。\n今すぐリストに移動しますか？"
+    transaction_draft_save_failed: "トランザクション保存失敗"
+    transaction_draft_already_exists: "すでに保存されたトランザクションがあります。"
+    transaction_draft_empty_required_fields: "送信先と送信金額を両方入力してください。不足している項目を確認してください。"
+    transaction_unavailable_to_sign: "トランザクション署名不可"
+    transaction_already_used_utxo_included: "すでに使用されたUTXOが含まれています。保存されたトランザクションを削除しますか？"
+    transaction_has_been_locked_utxo_included: "ロックされたUTXOが含まれています。保存されたトランザクションを削除しますか？"
+    transaction_draft_delete: "一時保存トランザクション削除"
+    transaction_draft_delete_description: "一時保存されたトランザクションを削除しますか？一度削除すると元に戻すことはできません。"
+    transaction_draft_delete_failed: "一時保存トランザクション削除失敗"
+    transaction_draft_delete_completed: "一時保存トランザクション削除完了"
+    transaction_draft_delete_completed_description: "一時保存されたトランザクションを削除しました。"
+    cancel: "キャンセル"
+    remove: "削除"
+    move: "移動"
+    confirm: "確認"
+  signed: "署名完了"
+  unsigned: "署名未完了"
+  max: "最大"
+
 # lib/enums
 transaction_enums:
   high_priority: "高速"

assets/i18n/kr.i18n.yaml

@@ -168,6 +168,39 @@ donation:
   ln_address_pow: "[email protected]"
   ln_invoice_api_error: "라이트닝 인보이스 생성에 실패했어요"
 
+transaction_draft:
+  title: "임시 저장 트랜잭션"
+  empty_message: "임시 저장된 트랜잭션이 없어요"
+  deleted_wallet: "삭제된 지갑"
+  save: "임시 저장"
+  load: "불러오기"
+  recipient_batch_address: "$address 외 $count개 주소"
+  fee_rate: "수수료율"
+  sats_per_vbyte: "sat/vB"
+  dialog:
+    transaction_draft_saved_send_screen: "보내기 정보 저장 완료"
+    transaction_draft_saved_send_screen_description: "나중에 서명할 수 있도록 보내기 정보를 임시 저장했어요.\n지금 목록으로 이동할까요?"
+    transaction_draft_saved_broadcast_screen: "트랜잭션 저장 완료"
+    transaction_draft_saved_description_broadcast_screen: "나중에 전송할 수 있도록 트랜잭션을 임시 저장했어요.\n지금 목록으로 이동할까요?"
+    transaction_draft_save_failed: "트랜잭션 저장 실패"
+    transaction_draft_already_exists: "이미 저장된 트랜잭션이에요."
+    transaction_draft_empty_required_fields: "주소와 보낼 금액을 모두 입력해야 해요. 빠진 항목을 확인해 주세요."
+    transaction_unavailable_to_sign: "트랜잭션 서명 불가"
+    transaction_already_used_utxo_included: "이미 사용된 UTXO가 포함되어 있어요. 저장된 트랜잭션을 지울까요?"
+    transaction_has_been_locked_utxo_included: "잠금 설정이 된 UTXO가 포함되어 있어요. 저장된 트랜잭션을 지울까요?"
+    transaction_draft_delete: "임시 저장 트랜잭션 삭제"
+    transaction_draft_delete_description: "임시 저장된 트랜잭션을 삭제할까요? 한번 삭제하면 되돌릴 수 없어요."
+    transaction_draft_delete_failed: "임시 저장 트랜잭션 삭제 실패"
+    transaction_draft_delete_completed: "삭제 완료"
+    transaction_draft_delete_completed_description: "임시 저장 트랜잭션을 삭제했어요."
+    cancel: "취소"
+    remove: "지우기"
+    move: "이동하기"
+    confirm: "확인"
+  signed: "서명 완료"
+  unsigned: "서명 전"
+  max: "최대"
+
 # lib/enums
 transaction_enums:
   high_priority: "빠른 전송"

lib/app.dart

@@ -13,6 +13,8 @@ import 'package:coconut_wallet/providers/wallet_provider.dart';
 import 'package:coconut_wallet/repository/realm/address_repository.dart';
 import 'package:coconut_wallet/repository/realm/realm_manager.dart';
 import 'package:coconut_wallet/repository/realm/subscription_repository.dart';
+import 'package:coconut_wallet/repository/realm/model/coconut_wallet_model.dart';
+import 'package:coconut_wallet/repository/realm/transaction_draft_repository.dart';
 import 'package:coconut_wallet/repository/realm/transaction_repository.dart';
 import 'package:coconut_wallet/repository/realm/utxo_repository.dart';
 import 'package:coconut_wallet/providers/price_provider.dart';
@@ -31,6 +33,7 @@ import 'package:coconut_wallet/screens/settings/block_explorer_screen.dart';
 import 'package:coconut_wallet/screens/settings/coconut_crew_screen.dart';
 import 'package:coconut_wallet/screens/settings/electrum_server_screen.dart';
 import 'package:coconut_wallet/screens/settings/log_viewer_screen.dart';
+import 'package:coconut_wallet/screens/transaction_draft/transaction_draft_screen.dart';
 import 'package:coconut_wallet/screens/wallet_detail/address_list_screen.dart';
 import 'package:coconut_wallet/screens/review/negative_feedback_screen.dart';
 import 'package:coconut_wallet/screens/review/positive_feedback_screen.dart';
@@ -114,6 +117,9 @@ class _CoconutWalletAppState extends State<CoconutWalletApp> {
         Provider<AddressRepository>(create: (context) => AddressRepository(context.read<RealmManager>())),
         Provider<TransactionRepository>(create: (context) => TransactionRepository(context.read<RealmManager>())),
         Provider<UtxoRepository>(create: (context) => UtxoRepository(context.read<RealmManager>())),
+        Provider<TransactionDraftRepository>(
+          create: (context) => TransactionDraftRepository(context.read<RealmManager>(), context.read<UtxoRepository>()),
+        ),
         Provider<SubscriptionRepository>(create: (context) => SubscriptionRepository(context.read<RealmManager>())),
         Provider<WalletPreferencesRepository>(
           create: (context) => WalletPreferencesRepository(context.read<RealmManager>()),
@@ -237,7 +243,16 @@ class _CoconutWalletAppState extends State<CoconutWalletApp> {
 
                 // 로딩이 필요한 화면들
                 '/wallet-add-input': (context) => const CustomLoadingOverlay(child: WalletAddInputScreen()),
-                '/broadcasting': (context) => const CustomLoadingOverlay(child: BroadcastingScreen()),
+                '/broadcasting':
+                    (context) => buildLoadingScreenWithArgs(
+                      context,
+                      (args) => BroadcastingScreen(
+                        transactionDraft:
+                            args.containsKey('transactionDraft')
+                                ? args['transactionDraft'] as RealmTransactionDraft?
+                                : null,
+                      ),
+                    ),
 
                 // 인자가 있는 기본 화면들 (Privacy Screen 사용 ❌ - 각 화면 내부에서 설정/해제 합니다)
                 // 1. 주소 보기
@@ -285,7 +300,11 @@ class _CoconutWalletAppState extends State<CoconutWalletApp> {
                 '/send':
                     (context) => buildScreenWithArgs(
                       context,
-                      (args) => SendScreen(walletId: args['walletId'], sendEntryPoint: args['sendEntryPoint']),
+                      (args) => SendScreen(
+                        walletId: args['walletId'],
+                        sendEntryPoint: args['sendEntryPoint'],
+                        transactionDraft: args['transactionDraft'],
+                      ),
                     ),
                 '/utxo-tag': (context) => buildScreenWithArgs(context, (args) => UtxoTagCrudScreen(id: args['id'])),
                 '/select-donation-amount':
@@ -350,6 +369,7 @@ class _CoconutWalletAppState extends State<CoconutWalletApp> {
                       context,
                       (args) => UtxoDetailScreen(utxo: args['utxo'], id: args['id']),
                     ),
+                '/transaction-draft': (context) => const TransactionDraftScreen(),
               },
             );
 
@@ -363,13 +383,13 @@ class _CoconutWalletAppState extends State<CoconutWalletApp> {
   /// 화면 생성 헬퍼 메서드
   /// 1. 인자가 있는 화면
   Widget buildScreenWithArgs(BuildContext context, Widget Function(Map<String, dynamic>) builder) {
-    final Map<String, dynamic> args = ModalRoute.of(context)?.settings.arguments as Map<String, dynamic>;
+    final Map<String, dynamic> args = ModalRoute.of(context)?.settings.arguments as Map<String, dynamic>? ?? {};
     return builder(args);
   }
 
   /// 2. CustomLoadingOverlay + 인자가 있는 화면
   Widget buildLoadingScreenWithArgs(BuildContext context, Widget Function(Map<String, dynamic>) builder) {
-    final Map<String, dynamic> args = ModalRoute.of(context)?.settings.arguments as Map<String, dynamic>;
+    final Map<String, dynamic> args = ModalRoute.of(context)?.settings.arguments as Map<String, dynamic>? ?? {};
     return CustomLoadingOverlay(child: builder(args));
   }
 }

lib/constants/realm_constants.dart

@@ -1 +1 @@
-const int kRealmVersion = 5;
+const int kRealmVersion = 6;

lib/constants/secure_keys.dart

@@ -1 +1,2 @@
 const kSecureStoragePinKey = 'pin';
+const kSecureStorageSignedTransactionDraftPrefix = 'signed_transaction_draft_';

lib/model/error/app_error.dart

@@ -33,4 +33,8 @@ class ErrorCodes {
   static AppError nodeIsolateError = AppError('1301', t.errors.node_unknown);
   static AppError broadcastError = AppError('1302', t.errors.broadcast_error);
   static AppError broadcastErrorWithMessage(String message) => ErrorCodes.withMessage(broadcastError, message);
+  static AppError transactionDraftAlreadyExists = AppError(
+    '1400',
+    t.transaction_draft.dialog.transaction_draft_already_exists,
+  );
 }

lib/providers/send_info_provider.dart

@@ -25,6 +25,8 @@ class SendInfoProvider {
   // null인 경우 RBF 또는 CPFP가 아닙니다.
   FeeBumpingType? _feeBumpingType;
   WalletImportSource? _walletImportSource;
+  int? _transactionDraftId;
+  double? _feeRate;
 
   int? get walletId => _walletId;
   String? get recipientAddress => _recipientAddress;
@@ -42,6 +44,16 @@ class SendInfoProvider {
       _recipientsForBatch == null ? null : UnmodifiableMapView(_recipientsForBatch!);
   FeeBumpingType? get feeBumpingType => _feeBumpingType;
   WalletImportSource? get walletImportSource => _walletImportSource;
+  int? get transactionDraftId => _transactionDraftId;
+  double? get feeRate => _feeRate;
+
+  void setFeeRate(double feeRate) {
+    _feeRate = feeRate;
+  }
+
+  void setTransactionDraftId(int? id) {
+    _transactionDraftId = id;
+  }
 
   void setWalletId(int id) {
     _walletId = id;
@@ -116,7 +128,9 @@ class SendInfoProvider {
                                         _rawSignedTransaction =
                                             _isDonation =
                                                 _sendEntryPoint =
-                                                    _recipientsForBatch = _feeBumpingType = _walletImportSource = null;
+                                                    _recipientsForBatch =
+                                                        _feeBumpingType =
+                                                            _walletImportSource = _transactionDraftId = null;
   }
 
   Map<String, int>? getRecipientMap() {

lib/providers/view_model/send/broadcasting_view_model.dart

@@ -2,7 +2,6 @@ import 'dart:collection';
 import 'dart:convert';
 
 import 'package:coconut_lib/coconut_lib.dart';
-import 'package:coconut_wallet/enums/network_enums.dart';
 import 'package:coconut_wallet/localization/strings.g.dart';
 import 'package:coconut_wallet/providers/node_provider/node_provider.dart';
 import 'package:coconut_wallet/providers/send_info_provider.dart';
@@ -53,6 +52,15 @@ class BroadcastingViewModel extends ChangeNotifier {
     _walletBase = _walletProvider.getWalletById(_sendInfoProvider.walletId!).walletBase;
     _walletId = _sendInfoProvider.walletId!;
     _isSendingDonation = _sendInfoProvider.isDonation ?? false;
+
+    debugPrint('sendInfoProvider.transactionDraftId: ${_sendInfoProvider.transactionDraftId}');
+    debugPrint('sendInfoProvider.signedPsbt: ${_sendInfoProvider.signedPsbt}');
+    debugPrint('sendInfoProvider.txWaitingForSign: ${_sendInfoProvider.txWaitingForSign}');
+    debugPrint('sendInfoProvider.transaction: ${_sendInfoProvider.transaction}');
+    debugPrint('sendInfoProvider.walletId: ${_sendInfoProvider.walletId}');
+    debugPrint('sendInfoProvider.walletBase: $_walletBase');
+    debugPrint('sendInfoProvider.walletAddressType: ${_walletBase.addressType}');
+    debugPrint('sendInfoProvider.walletId: $_walletId');
   }
 
   List<String> get recipientAddresses => UnmodifiableListView(_recipientAddresses);
@@ -74,6 +82,15 @@ class BroadcastingViewModel extends ChangeNotifier {
 
   FeeBumpingType? get feeBumpingType => _sendInfoProvider.feeBumpingType;
 
+  int? get transactionDraftId => _sendInfoProvider.transactionDraftId;
+  double? get feeRate => _sendInfoProvider.feeRate;
+  bool? get isMaxMode => _sendInfoProvider.isMaxMode;
+  bool? get isMultisig => _sendInfoProvider.isMultisig;
+  Transaction? get transaction => _sendInfoProvider.transaction;
+  String? get txWaitingForSign => _sendInfoProvider.txWaitingForSign;
+  String? get signedPsbt => _sendInfoProvider.signedPsbt;
+  String? get signedPsbtBase64Encoded => _sendInfoProvider.signedPsbt;
+
   Future<Result<String>> broadcast(Transaction signedTx) async {
     Logger.log('BroadcastingViewModel: signedTx = ${signedTx.serialize()}');
     final isConnected = await isElectrumServerConnected();