Add submit package option to tx push page

frontend/src/app/components/push-transaction/push-transaction.component.html

@@ -9,4 +9,66 @@
     <p class="red-color d-inline">{{ error }}</p> <a *ngIf="txId" [routerLink]="['/tx/' | relativeUrl, txId]">{{ txId }}</a>
   </form>
 
+  @if (network === '' || network === 'testnet' || network === 'testnet4' || network === 'signet') {
+    <br>
+    <h1 class="text-left" style="margin-top: 1rem;" i18n="shared.submit-transactions|Submit Package">Submit Package</h1>
+
+    <form [formGroup]="submitTxsForm" (submit)="submitTxsForm.valid && submitTxs()" novalidate>
+      <div class="mb-3">
+        <textarea formControlName="txs" class="form-control" rows="5" i18n-placeholder="transaction.test-transactions" placeholder="Comma-separated list of raw transactions"></textarea>
+      </div>
+      <label i18n="test.tx.max-fee-rate">Maximum fee rate (sat/vB)</label>
+      <input type="number" class="form-control input-dark" formControlName="maxfeerate" id="maxfeerate"
+          [value]="10000" placeholder="10,000 s/vb" [class]="{invalid: invalidMaxfeerate}">
+      <label i18n="submitpackage.tx.max-burn-amount">Maximum burn amount (sats)</label>
+      <input type="number" class="form-control input-dark" formControlName="maxburnamount" id="maxburnamount"
+          [value]="0" placeholder="0 sat" [class]="{invalid: invalidMaxburnamount}">
+      <br>
+      <button [disabled]="isLoadingPackage" type="submit" class="btn btn-primary mr-2" i18n="shared.submit-transactions|Submit Package">Submit Package</button>
+      <p *ngIf="errorPackage" class="red-color d-inline">{{ errorPackage }}</p>
+      <p *ngIf="packageMessage" class="d-inline">{{ packageMessage }}</p>
+      
+    </form>
+
+    <br>
+
+    <div class="box" *ngIf="results?.length">
+      <table class="accept-results table table-fixed table-borderless table-striped">
+        <tbody>
+          <tr>
+            <th class="allowed" i18n="test-tx.is-allowed">Allowed?</th>
+            <th class="txid" i18n="dashboard.latest-transactions.txid">TXID</th>
+            <th class="rate" i18n="transaction.effective-fee-rate|Effective transaction fee rate">Effective fee rate</th>
+            <th class="reason" i18n="test-tx.rejection-reason">Rejection reason</th>
+          </tr>
+          <ng-container *ngFor="let result of results;">
+            <tr>
+              <td class="allowed">
+                @if (result.error == null) {
+                  <span>✅</span>
+                }
+                @else {
+                  <span>❌</span>
+                }
+              </td>
+              <td class="txid">
+                @if (!result.error) {
+                  <a [routerLink]="['/tx/' | relativeUrl, result.txid]"><app-truncate [text]="result.txid"></app-truncate></a>
+                } @else {
+                  <app-truncate [text]="result.txid"></app-truncate>
+                }
+              </td>
+              <td class="rate">
+                <app-fee-rate *ngIf="result.fees?.['effective-feerate'] != null" [fee]="result.fees?.['effective-feerate'] * 100000"></app-fee-rate>
+                <span *ngIf="result.fees?.['effective-feerate'] == null">-</span>
+              </td>
+              <td class="reason">
+                {{ result.error || '-' }}
+              </td>
+            </tr>
+          </ng-container>
+        </tbody>
+      </table>
+    </div>
+  }
 </div>

frontend/src/app/components/push-transaction/push-transaction.component.ts

@@ -7,6 +7,7 @@ import { OpenGraphService } from '../../services/opengraph.service';
 import { seoDescriptionNetwork } from '../../shared/common.utils';
 import { ActivatedRoute, Router } from '@angular/router';
 import { RelativeUrlPipe } from '../../shared/pipes/relative-url/relative-url.pipe';
+import { TxResult } from '../../interfaces/node-api.interface';
 
 @Component({
   selector: 'app-push-transaction',
@@ -19,6 +20,16 @@ export class PushTransactionComponent implements OnInit {
   txId: string = '';
   isLoading = false;
 
+  submitTxsForm: UntypedFormGroup;
+  errorPackage: string = '';
+  packageMessage: string = '';
+  results: TxResult[] = [];
+  invalidMaxfeerate = false;
+  invalidMaxburnamount = false;
+  isLoadingPackage = false;
+
+  network = this.stateService.network;
+
   constructor(
     private formBuilder: UntypedFormBuilder,
     private apiService: ApiService,
@@ -35,6 +46,14 @@ export class PushTransactionComponent implements OnInit {
       txHash: ['', Validators.required],
     });
 
+    this.submitTxsForm = this.formBuilder.group({
+      txs: ['', Validators.required],
+      maxfeerate: ['', Validators.min(0)],
+      maxburnamount: ['', Validators.min(0)],
+    });
+
+    this.stateService.networkChanged$.subscribe((network) => this.network = network);
+
     this.seoService.setTitle($localize`:@@meta.title.push-tx:Broadcast Transaction`);
     this.seoService.setDescription($localize`:@@meta.description.push-tx:Broadcast a transaction to the ${this.stateService.network==='liquid'||this.stateService.network==='liquidtestnet'?'Liquid':'Bitcoin'}${seoDescriptionNetwork(this.stateService.network)} network using the transaction's hash.`);
     this.ogService.setManualOgImage('tx-push.jpg');
@@ -70,6 +89,67 @@ export class PushTransactionComponent implements OnInit {
     });
   }
 
+  submitTxs() {
+    let txs: string[] = [];
+    try {
+      txs = (this.submitTxsForm.get('txs')?.value as string).split(',').map(hex => hex.trim());
+      if (txs?.length === 1) {
+        this.pushTxForm.get('txHash').setValue(txs[0]);
+        this.submitTxsForm.get('txs').setValue('');
+        this.postTx();
+        return;
+      }
+    } catch (e) {
+      this.errorPackage = e?.message;
+      return;
+    }
+
+    let maxfeerate;
+    let maxburnamount;
+    this.invalidMaxfeerate = false;
+    this.invalidMaxburnamount = false;
+    try {
+      const maxfeerateVal = this.submitTxsForm.get('maxfeerate')?.value;
+      if (maxfeerateVal != null && maxfeerateVal !== '') {
+        maxfeerate = parseFloat(maxfeerateVal) / 100_000;
+      }
+    } catch (e) {
+      this.invalidMaxfeerate = true;
+    }
+    try {
+      const maxburnamountVal = this.submitTxsForm.get('maxburnamount')?.value;
+      if (maxburnamountVal != null && maxburnamountVal !== '') {
+        maxburnamount = parseInt(maxburnamountVal) / 100_000_000;
+      }
+    } catch (e) {
+      this.invalidMaxburnamount = true;
+    }
+
+    this.isLoadingPackage = true;
+    this.errorPackage = '';
+    this.results = [];
+    this.apiService.submitPackage$(txs, maxfeerate === 0.1 ? null : maxfeerate, maxburnamount === 0 ? null : maxburnamount)
+      .subscribe((result) => {
+        this.isLoadingPackage = false;
+
+        this.packageMessage = result['package_msg'];
+        for (let wtxid in result['tx-results']) {
+          this.results.push(result['tx-results'][wtxid]);
+        }
+
+        this.submitTxsForm.reset();
+      },
+      (error) => {
+        if (typeof error.error?.error === 'string') {
+          const matchText = error.error.error.replace(/\\/g, '').match('"message":"(.*?)"');
+          this.errorPackage = matchText && matchText[1] || error.error.error;
+        } else if (error.message) {
+          this.errorPackage = error.message;
+        }
+        this.isLoadingPackage = false;
+      });
+  }
+
   private async handleColdcardPushTx(fragmentParams: URLSearchParams): Promise<boolean> {
     // maybe conforms to Coldcard nfc-pushtx spec
     if (fragmentParams && fragmentParams.get('t')) {

frontend/src/app/interfaces/node-api.interface.ts

@@ -452,4 +452,22 @@ export interface TestMempoolAcceptResult {
     "effective-includes": string[],
   },
   ['reject-reason']?: string,
-}
+}
+
+export interface SubmitPackageResult {
+  package_msg: string;
+  "tx-results": { [wtxid: string]: TxResult };
+  "replaced-transactions"?: string[];
+}
+
+export interface TxResult {
+  txid: string;
+  "other-wtxid"?: string;
+  vsize?: number;
+  fees?: {
+    base: number;
+    "effective-feerate"?: number;
+    "effective-includes"?: string[];
+  };
+  error?: string;
+}

frontend/src/app/services/api.service.ts

@@ -1,7 +1,8 @@
 import { Injectable } from '@angular/core';
 import { HttpClient, HttpParams, HttpResponse } from '@angular/common/http';
 import { CpfpInfo, OptimizedMempoolStats, AddressInformation, LiquidPegs, ITranslators, PoolStat, BlockExtended, TransactionStripped, RewardStats, AuditScore, BlockSizesAndWeights,
-  RbfTree, BlockAudit, CurrentPegs, AuditStatus, FederationAddress, FederationUtxo, RecentPeg, PegsVolume, AccelerationInfo, TestMempoolAcceptResult } from '../interfaces/node-api.interface';
+  RbfTree, BlockAudit, CurrentPegs, AuditStatus, FederationAddress, FederationUtxo, RecentPeg, PegsVolume, AccelerationInfo, TestMempoolAcceptResult, 
+  SubmitPackageResult} from '../interfaces/node-api.interface';
 import { BehaviorSubject, Observable, catchError, filter, map, of, shareReplay, take, tap } from 'rxjs';
 import { StateService } from './state.service';
 import { Transaction } from '../interfaces/electrs.interface';
@@ -244,6 +245,19 @@ export class ApiService {
     return this.httpClient.post<TestMempoolAcceptResult[]>(this.apiBaseUrl + this.apiBasePath + `/api/txs/test${maxfeerate != null ? '?maxfeerate=' + maxfeerate.toFixed(8) : ''}`, rawTxs);
   }
 
+  submitPackage$(rawTxs: string[], maxfeerate?: number, maxburnamount?: number): Observable<SubmitPackageResult> {
+    const queryParams = [];
+
+    if (maxfeerate) {
+      queryParams.push(`maxfeerate=${maxfeerate}`);
+    }
+
+    if (maxburnamount) {
+      queryParams.push(`maxburnamount=${maxburnamount}`);
+    }
+    return this.httpClient.post<SubmitPackageResult>(this.apiBaseUrl + this.apiBasePath + '/api/txs/package' + (queryParams.length > 0 ? `?${queryParams.join('&')}` : ''), rawTxs);
+  }
+
   getTransactionStatus$(txid: string): Observable<any> {
     return this.httpClient.get<any>(this.apiBaseUrl + this.apiBasePath + '/api/tx/' + txid + '/status');
   }