[accelerator] prepaid acceleration

frontend/src/app/components/accelerate-preview/accelerate-preview.component.html

@@ -219,7 +219,7 @@
               </ng-container>
 
               <!-- LOGIN CTA -->
-              <ng-container *ngIf="stateService.isMempoolSpaceBuild && !isLoggedIn()">
+              <ng-container *ngIf="stateService.isMempoolSpaceBuild && !isLoggedIn() && paymentType === 'bitcoin'">
                 <tr class="group-first group-last" style="border-top: 1px dashed grey">
                   <td class="item"></td>
                   <td class="amt"></td>
@@ -242,7 +242,7 @@
         </div>
       </div>
   
-      <div class="row mb-3" *ngIf="isLoggedIn()">
+      <div class="row mb-3" *ngIf="isLoggedIn() && paymentType === 'bitcoin'">
         <div class="col">
           <div class="d-flex justify-content-end" *ngIf="user && estimate.hasAccess">
             <button class="btn btn-sm btn-primary btn-success" style="width: 150px" (click)="accelerate()">Accelerate</button>
@@ -250,6 +250,14 @@
         </div>
       </div>
 
+      <div class="row d-flex justify-content-end mr-1" style="height: 48px" *ngIf="!hideCashApp">
+        <div id="cash-app-pay" style="max-width: 320px" [style]="showSpinner ? 'opacity: 0' : 'opacity: 1'"></div>
+        <div *ngIf="showSpinner" class="d-flex align-items-center">
+          <span class="mr-2">Loading</span>
+          <div class="spinner-border text-light" style="width: 25px; height: 25px"></div>
+        </div>
+      </div>
+  
     </div>
   </ng-container>
 </div>

frontend/src/app/components/accelerate-preview/accelerate-preview.component.ts

@@ -1,5 +1,4 @@
 import { Component, OnInit, Input, OnDestroy, OnChanges, SimpleChanges, HostListener, ChangeDetectorRef } from '@angular/core';
-import { ApiService } from '../../services/api.service';
 import { Subscription, catchError, of, tap } from 'rxjs';
 import { StorageService } from '../../services/storage.service';
 import { Transaction } from '../../interfaces/electrs.interface';
@@ -40,7 +39,7 @@ export const MAX_BID_RATIO = 4;
   templateUrl: 'accelerate-preview.component.html',
   styleUrls: ['accelerate-preview.component.scss']
 })
-export class AcceleratePreviewComponent implements OnInit, OnDestroy, OnChanges {
+export class AcceleratePreviewComponent implements OnDestroy, OnChanges {
   @Input() tx: Transaction | undefined;
   @Input() scrollEvent: boolean;
 
@@ -63,18 +62,37 @@ export class AcceleratePreviewComponent implements OnInit, OnDestroy, OnChanges
 
   maxRateOptions: RateOption[] = [];
 
+  // Cashapp payment
+  paymentType: 'bitcoin' | 'cashapp' = 'bitcoin';
+  cashAppSubscription: Subscription;
+  conversionsSubscription: Subscription;
+  payments: any;
+  showSpinner = false;
+  square: any;
+  cashAppPay: any;
+  hideCashApp = false;
+
   constructor(
     public stateService: StateService,
     private servicesApiService: ServicesApiServices,
     private storageService: StorageService,
     private audioService: AudioService,
     private cd: ChangeDetectorRef
-  ) { }
+  ) {
+    if (window.document.referrer === 'cash.app') {
+      this.paymentType = 'cashapp';
+    } else {
+      this.paymentType = 'bitcoin';
+    }
+  }
 
   ngOnDestroy(): void {
     if (this.estimateSubscription) {
       this.estimateSubscription.unsubscribe();
     }
+    if (this.cashAppPay) {
+      this.cashAppPay.destroy();
+    }
   }
 
   ngOnChanges(changes: SimpleChanges): void {
@@ -83,9 +101,16 @@ export class AcceleratePreviewComponent implements OnInit, OnDestroy, OnChanges
     }
   }
 
-  ngOnInit() {
+  ngAfterViewInit() {
+    this.showSpinner = true;
+
     this.user = this.storageService.getAuth()?.user ?? null;
 
+    this.servicesApiService.setupSquare$().subscribe(ids => {
+      this.square = {
+        appId: ids.squareAppId,
+        locationId: ids.squareLocationId
+      };
       this.estimateSubscription = this.servicesApiService.estimate$(this.tx.txid).pipe(
         tap((response) => {
           if (response.status === 204) {
@@ -101,6 +126,11 @@ export class AcceleratePreviewComponent implements OnInit, OnDestroy, OnChanges
               this.estimateSubscription.unsubscribe();
             }
 
+            if (this.paymentType === 'cashapp') {
+              this.estimate.userBalance = 999999999;
+              this.estimate.enoughBalance = true;
+            }
+
             if (this.estimate.hasAccess === true && this.estimate.userBalance <= 0) {
               if (this.isLoggedIn()) {
                 this.error = `not_enough_balance`;
@@ -135,6 +165,9 @@ export class AcceleratePreviewComponent implements OnInit, OnDestroy, OnChanges
 
             if (!this.error) {
               this.scrollToPreview('acceleratePreviewAnchor', 'start');
+              if (this.paymentType === 'cashapp') {
+                this.setupSquare();
+              } 
             }
           }
         }),
@@ -146,6 +179,7 @@ export class AcceleratePreviewComponent implements OnInit, OnDestroy, OnChanges
           return of(null);
         })
       ).subscribe();
+    });
   }
 
   /**
@@ -216,4 +250,99 @@ export class AcceleratePreviewComponent implements OnInit, OnDestroy, OnChanges
   onResize(): void {
     this.isMobile = window.innerWidth <= 767.98;
   }
+
+  /**
+   * CashApp payment
+   */
+  setupSquare() {
+    const init = () => {
+      this.initSquare();
+    };
+
+    //@ts-ignore
+    if (!window.Square) {
+      console.warn('Square.js failed to load properly. Retrying in 1 second.');
+      setTimeout(init, 1000);
+    } else {
+      init();
+    }
+  }
+
+  async initSquare(): Promise<void> {
+    try {
+      //@ts-ignore
+      this.payments = window.Square.payments(this.square.appId, this.square.locationId)
+      await this.requestCashAppPayment();
+    } catch (e) {
+      console.error(e);
+      this.error = 'Error loading Square Payments';
+      return;
+    }
+  }
+
+  async requestCashAppPayment() {
+    if (this.cashAppSubscription) {
+      this.cashAppSubscription.unsubscribe();
+    }
+    if (this.conversionsSubscription) {
+      this.conversionsSubscription.unsubscribe();
+    }
+    this.hideCashApp = false;
+
+    
+    this.conversionsSubscription = this.stateService.conversions$.subscribe(
+      async (conversions) => {
+        const maxCostUsd = this.maxCost / 100_000_000 * conversions.USD;
+        const paymentRequest = this.payments.paymentRequest({
+          countryCode: 'US',
+          currencyCode: 'USD',
+          total: {
+            amount: maxCostUsd.toString(),
+            label: 'Total',
+            pending: true,
+            productUrl: `https://mempool.space/tx/${this.tx.txid}`,
+          }
+        });
+        this.cashAppPay = await this.payments.cashAppPay(paymentRequest, {
+          redirectURL: 'https://my.website/checkout',
+          referenceId: `accelerator-${this.tx.txid.substring(0, 15)}-${Math.round(new Date().getTime() / 1000)}`,
+        });
+        await this.cashAppPay.attach('#cash-app-pay');
+        this.showSpinner = false;
+        
+        const that = this;
+        this.cashAppPay.addEventListener('ontokenization', function (event) {
+          const { tokenResult, error } = event.detail;
+          if (error) {
+            this.error = error;
+          } else if (tokenResult.status === 'OK') {
+            that.hideCashApp = true;
+
+            that.accelerationSubscription = that.servicesApiService.accelerateWithCashApp$(
+              that.tx.txid,
+              that.userBid,
+              tokenResult.token,
+              tokenResult.details.cashAppPay.cashtag,
+              tokenResult.details.cashAppPay.referenceId
+            ).subscribe({
+              next: () => {
+                that.audioService.playSound('ascend-chime-cartoon');
+                that.showSuccess = true;
+                that.scrollToPreviewWithTimeout('successAlert', 'center');
+                that.estimateSubscription.unsubscribe();
+              },
+              error: (response) => {
+                if (response.status === 403 && response.error === 'not_available') {
+                  that.error = 'waitlisted';
+                } else {
+                  that.error = response.error;
+                }
+                that.scrollToPreviewWithTimeout('mempoolError', 'center');
+              }
+            });
+          }
+        });
+      }
+    );
+  }
 }

frontend/src/app/components/master-page/master-page.component.ts

@@ -7,7 +7,6 @@ import { EnterpriseService } from '../../services/enterprise.service';
 import { NavigationService } from '../../services/navigation.service';
 import { MenuComponent } from '../menu/menu.component';
 import { StorageService } from '../../services/storage.service';
-import { ApiService } from '../../services/api.service';
 
 @Component({
   selector: 'app-master-page',
@@ -45,7 +44,6 @@ export class MasterPageComponent implements OnInit, OnDestroy {
     private enterpriseService: EnterpriseService,
     private navigationService: NavigationService,
     private storageService: StorageService,
-    private apiService: ApiService,
     private router: Router,
   ) { }
 

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

@@ -141,6 +141,10 @@ export class ServicesApiServices {
     return this.httpClient.post<any>(`${SERVICES_API_PREFIX}/accelerator/accelerate`, { txInput: txInput, userBid: userBid });
   }
 
+  accelerateWithCashApp$(txInput: string, userBid: number, token: string, cashtag: string, referenceId: string) {
+    return this.httpClient.post<any>(`${SERVICES_API_PREFIX}/accelerator/accelerate/cashapp`, { txInput: txInput, userBid: userBid, token: token, cashtag: cashtag, referenceId: referenceId });
+  }
+
   getAccelerations$(): Observable<Acceleration[]> {
     return this.httpClient.get<Acceleration[]>(`${SERVICES_API_PREFIX}/accelerator/accelerations`);
   }
@@ -160,4 +164,8 @@ export class ServicesApiServices {
   getAccelerationStats$(): Observable<AccelerationStats> {
     return this.httpClient.get<AccelerationStats>(`${SERVICES_API_PREFIX}/accelerator/accelerations/stats`);
   }
+
+  setupSquare$(): Observable<{squareAppId: string, squareLocationId: string}> {
+    return this.httpClient.get<{squareAppId: string, squareLocationId: string}>(`${SERVICES_API_PREFIX}/square/setup`);
+  }
 }