DRAFT push payjoin details to transaction model

lib/_model/transaction.dart

@@ -46,6 +46,7 @@ class Transaction with _$Transaction {
     bdk.TransactionDetails? bdkTx,
     // Wallet? wallet,
     @Default(false) bool isSwap,
+    @Default(false) bool isPayjoin,
     SwapTx? swapTx,
     @Default(false) bool isLiquid,
     @Default('') String unblindedUrl,

lib/_pkg/payjoin/manager.dart

@@ -229,13 +229,6 @@ class PayjoinManager {
     );
   }
 
-  Future<List<bdk.LocalUtxo>> _listUnspent(
-    Wallet wallet,
-    bool isTestnet,
-  ) async {
-    return await _walletTx.listUnspent(wallet: wallet);
-  }
-
   Future<String> _processPsbt({
     required String psbt,
     required Wallet wallet,

lib/_pkg/wallet/bdk/transaction.dart

@@ -439,6 +439,7 @@ class BDKTransactions {
     required List<UTXO> selectedUtxos,
     int? absFee,
     String? note,
+    bool isPayjoin = false,
   }) async {
     try {
       final isMainnet = wallet.network == BBNetwork.Mainnet;
@@ -569,9 +570,10 @@ class BDKTransactions {
         label: (note == null || note == '')
             ? labelsString
             : note, // for now we just take the first label
-        toAddress: address,
+        toAddress: isPayjoin ? null : address,
         outAddrs: outAddrs,
         psbt: base64Encode(psbtStr),
+        isPayjoin: isPayjoin,
       );
       return ((tx, feeAmt?.toInt(), base64Encode(psbtStr)), null);
     } on Exception catch (e) {

lib/_pkg/wallet/transaction.dart

@@ -140,6 +140,7 @@ class WalletTx implements IWalletTransactions {
     required bool enableRbf,
     List<UTXO>? selectedUtxos,
     int? absFee,
+    bool isPayjoin = false,
   }) async {
     try {
       switch (wallet.baseWalletType) {
@@ -159,6 +160,7 @@ class WalletTx implements IWalletTransactions {
             selectedUtxos: selectedUtxos ?? [],
             note: note,
             absFee: absFee,
+            isPayjoin: isPayjoin,
           );
           if (err != null) throw err;
           final (tx, feeAmt, psbt) = buildResp!;
@@ -176,6 +178,15 @@ class WalletTx implements IWalletTransactions {
               bdkWallet: bdkSignerWallet!,
             );
             if (errSign != null) throw errSign;
+            if (isPayjoin) {
+              final signedTx = tx!.copyWith(psbt: signed!.$2);
+              final txs = wallet.transactions.toList();
+              txs.add(signedTx);
+              final (w, errAdd) = await addUnsignedTxToWallet(
+                  transaction: signedTx, wallet: wallet);
+              if (errAdd != null) throw errAdd;
+              return ((w, signedTx, feeAmt), null);
+            }
             return ((wallet, tx!.copyWith(psbt: signed!.$2), feeAmt), null);
           } else {
             final txs = wallet.transactions.toList();

lib/send/bloc/send_cubit.dart

@@ -900,6 +900,14 @@ class SendCubit extends Cubit<SendState> {
     final (wallet, tx, feeAmt) = buildResp!;
 
     if (!wallet!.watchOnly()) {
+      if (state.hasPjParam()) {
+        await payjoinBuild(
+          networkFees: networkFees,
+          originalPsbt: tx!.psbt!,
+          wallet: wallet,
+        );
+      }
+
       emit(
         state.copyWith(
           sending: false,
@@ -951,8 +959,16 @@ class SendCubit extends Cubit<SendState> {
     if (state.selectedWalletBloc == null) return;
     if (state.payjoinSender == null) return;
 
-    // TODO copy originalPsbt.extractTx() to state.tx
-    // emit(state.copyWith(tx: originalPsbtTxWithId));
+    // Save originalPsbt to history
+    state.selectedWalletBloc!.add(
+      UpdateWallet(
+        wallet,
+        updateTypes: [
+          UpdateWalletTypes.transactions,
+        ],
+      ),
+    );
+
     emit(state.copyWith(sending: true, sent: false));
     await _payjoinManager.spawnSender(
       isTestnet: _networkCubit.state.testnet,
@@ -1170,14 +1186,6 @@ class SendCubit extends Cubit<SendState> {
       if (!isLn) {
         final fees = _networkFeesCubit.state.selectedOrFirst(false);
         await baseLayerBuild(networkFees: fees);
-        if (state.hasPjParam()) {
-          await payjoinBuild(
-            networkFees: fees,
-            originalPsbt: state.psbtSigned!,
-            wallet: wallet,
-          );
-          return;
-        }
         return;
       }
       // context.read<WalletBloc>().state.wallet;

lib/transaction/transaction_page.dart

@@ -285,6 +285,11 @@ class _TxDetails extends StatelessWidget {
             const Gap(4),
             AmountValue(isReceived: isReceived, amtStr: amtStr, units: units),
             const Gap(24),
+            if (tx.isPayjoin) ...[
+              const Gap(24),
+              const BBText.title('Payjoin'),
+              const Gap(4),
+            ],
             if (!isSwapPending) ...[
               const BBText.title('Transaction ID'),
               const Gap(4),