Add payment methods screen

src/app/backend.service.ts

@@ -1,6 +1,7 @@
 import { HttpClient } from '@angular/common/http';
 import { Injectable } from '@angular/core';
 import { Socket } from 'ngx-socket-io';
+import { BehaviorSubject } from 'rxjs';
 
 /*
  * The following interfaces are copied from the backend.
@@ -26,17 +27,16 @@ export interface ICart {
 
 export interface IPaymentMethod {
   method: any;
-  amount: number
+  amount: number;
 }
 
 export enum PaymentStatus {
+  CANCELLED = -2,
+  REQUESTED = -1,
   PENDING = 0,
-  PARTIALLY = 1,
+  UNCONFIRMED = 1,
-  UNCONFIRMED = 2,
+  DONE = 2,
-  DONE = 3,
-  CANCELLED = 4
 }
-
 export interface IInvoice {
   selector: string;
   paymentMethods: IPaymentMethod[];
@@ -62,33 +62,132 @@ export class BackendService {
 
   SERVER_URL = 'http://localhost:2009';
 
+  invoice: IInvoice | null = null;
+  invoiceUpdate: BehaviorSubject<IInvoice | null>;
+
   constructor(
     private socket: Socket,
     private http: HttpClient
   ) {
+    this.invoiceUpdate = new BehaviorSubject<IInvoice | null>(null);
     this.socket.on('status', (data: any) => {
       console.log('Status has been updated to: ', data);
     });
     this.socket.on('subscribe', (success: boolean) => {
       if (success) { console.log('We\'re getting the progress of this invoice!'); }
-      else { console.log('Subscription failed'); }
+      else { console.log('Subscribtion failed'); }
     });
   }
 
-  subscribeTo(selector: string) {
+  getSocket(): Socket {
+    return this.socket;
+  }
+
+  subscribeTo(selector: string): void {
+    this.socket.on('subscribe', (status: boolean) => {
+      if (status) {
+        this.updateInvoice();
+        console.log('Successfully subscribed to this invoice');
+      }
+      else { console.log('Failed to subscribe'); }
+    });
+
     this.socket.emit('subscribe', { selector });
   }
 
-  getInvoice(selector: string): Promise<IInvoice> {
+  updateInvoice(): void {
+    if (this.invoice !== undefined || this.invoice !== null) {
+      this.setInvoice(this.invoice?.selector!);
+    }
+  }
+
+  setInvoice(selector: string): Promise<IInvoice> {
     return new Promise(async (resolve, reject) => {
       this.http.get(this.SERVER_URL + '/invoice/' + selector, {
         observe: 'body',
         responseType: 'json'
       }).toPromise().then((invoice) => {
-        resolve(invoice as IInvoice);
+        this.invoice = invoice as IInvoice;
+        this.invoiceUpdate.next(this.invoice);
+        resolve(this.invoice);
       }).catch(err => {
         reject(err);
       });
     });
   }
+
+  setPaymentMethod(method: CryptoUnits): Promise<void> {
+    return new Promise(async (resolve, reject) => {
+      this.http.post(`${this.SERVER_URL}/invoice/${this.invoice?.selector}/setmethod`, { method }, {
+        responseType: 'json'
+      }).toPromise().then(() => {
+        this.setInvoice(this.invoice!!.selector);
+      }).catch(err => {
+        reject(err);
+      });
+    });
+  }
+
+  /**
+   * @returns Path to icon
+   */
+  getIcon(unit: CryptoUnits): string {
+    switch (unit) {
+      case CryptoUnits.BITCOIN:
+        return 'assets/Bitcoin.svg';
+      case CryptoUnits.BITCOINCASH:
+        return 'assets/BitcoinCash.svg';
+      case CryptoUnits.DOGECOIN:
+        return 'assets/Dogecoin.png';
+      case CryptoUnits.ETHEREUM:
+        return 'assets/Ethereum.svg';
+      case CryptoUnits.LITECOIN:
+        return 'assets/Litecoin.svg';
+      case CryptoUnits.MONERO:
+        return 'assets/Monero.svg';
+    }
+  }
+
+  findCryptoBySymbol(symbol: string): string | null {
+    for (const coin in CryptoUnits) {
+      // @ts-ignore: This actually works but I thing it's too hacky for TS. Allow me this one, please?
+      if (CryptoUnits[coin] === symbol.toUpperCase()) {
+        return coin.charAt(0).toUpperCase() + coin.toLowerCase().slice(1);
+      }
+    }
+    return null;
+  }
+
+  getAmount(): string | undefined {
+    return this.invoice?.paymentMethods.find(item => {
+      return item.method === CryptoUnits.BITCOIN;
+    })?.amount.toFixed(8);
+  }
+
+  getStatus(): string {
+    switch (this.invoice?.status) {
+      case PaymentStatus.PENDING:
+        return 'Pending';
+      case PaymentStatus.UNCONFIRMED:
+        return 'Unconfirmed';
+      case PaymentStatus.DONE:
+        return 'Paid';
+      case PaymentStatus.CANCELLED:
+        return 'Cancelled';
+      default:
+        return 'Unknown';
+    }
+  }
+
+  isInvoiceDone(): boolean {
+    return this.invoice?.status === PaymentStatus.DONE;
+  }
+
+  isInvoicePending(): boolean {
+    return this.invoice?.status === PaymentStatus.PENDING;
+  }
+
+  isInvoiceRequested(): boolean {
+    return this.invoice?.status === PaymentStatus.REQUESTED;
+  }
 }

src/app/header/header.component.html

@@ -1,4 +1,4 @@
 <div class="header">
     <h2>LibrePay</h2>
-    <a>Cancel payment</a>
+    <a *ngIf="this.backend.isInvoicePending()">Cancel payment</a>
 </div>

src/app/header/header.component.ts

@@ -1,4 +1,5 @@
 import { Component, OnInit } from '@angular/core';
+import { BackendService } from '../backend.service';
 
 @Component({
   selector: 'app-header',
@@ -7,7 +8,7 @@ import { Component, OnInit } from '@angular/core';
 })
 export class HeaderComponent implements OnInit {
 
-  constructor() { }
+  constructor(public backend: BackendService) { }
 
   ngOnInit(): void {
   }

src/app/pay/pay.component.css

@@ -19,6 +19,17 @@
     /* box-shadow: 1px 1px 112px 23px rgba(0,0,0,0.75); */
 }
 
+.smaller {
+    min-width: 200px;
+    width: 40vw !important;
+}
+
+@media (max-width: 800px) {
+    .content {
+        width: 100vw !important;
+    }
+}
+
 .content * {
     width: 100%;
 }

src/app/pay/pay.component.html

@@ -6,7 +6,7 @@
     <div class="cube"></div>
     <div class="cube"></div>
 </div>
-<div class="content">
+<div class="content" [ngClass]="{smaller: this.backend.isInvoiceRequested()}">
     <app-header></app-header>
     <app-payment></app-payment>
 </div>

src/app/pay/pay.component.ts

@@ -1,4 +1,5 @@
 import { Component, OnInit } from '@angular/core';
+import { BackendService } from '../backend.service';
 
 @Component({
   selector: 'app-pay',
@@ -7,7 +8,7 @@ import { Component, OnInit } from '@angular/core';
 })
 export class PayComponent implements OnInit {
 
-  constructor() { }
+  constructor(public backend: BackendService) { }
 
   ngOnInit(): void {
   }

src/app/payment/payment.component.css

@@ -1,15 +1,23 @@
 .payment {
-    display: grid;
-    grid-template-columns: 1fr 1fr;
     margin: 0;
     padding: 0;
     width: 100%;
-    height: 400px;
+    height: 500px;
     background-color: hsl(0, 0%, 11%);
     border-radius: 8px;
     transform: translateY(-8px);
 }
 
+.request {
+    transform: translateY(-40px);
+}
+
+.main {
+    display: grid;
+    height: 400px;
+    grid-template-columns: 1fr 1fr;
+}
+
 .qr {
     position: relative;
     transform: translateY(25%);
@@ -42,12 +50,12 @@
 }
 
 /* Data */
-.data {
+.main .data {
     display: grid;
     grid-template-columns: 1fr 50px;
     grid-template-rows: 1fr 4rem 4rem 4rem 1fr;
 }
-#target {
+.main #target {
     grid-row: 2;
 }
 #amount {
@@ -57,6 +65,65 @@
     grid-row: 4;
 }
 
-h3 {
+.main h3 {
     line-height: 0;
 }
+
+#title {
+    padding-top: 2rem;
+    line-height: 1;
+    font-size: 20pt;
+    font-weight: normal;
+    text-align: center;
+}
+
+#price {
+    text-align: center;
+    font-size: 16pt;
+}
+
+#list {
+    overflow-y: scroll;
+    scroll-behavior: smooth;
+    -ms-overflow-style: none;
+    scrollbar-width: none;
+    margin: 0;
+    padding: 0;
+}
+#list::-webkit-scrollbar {
+    display: none;
+}
+
+#list li {
+    padding-top: 10px;
+    padding-left: 5%;
+    padding-right: 5%;
+    border-radius: 8px;
+    display: grid;
+    cursor: pointer;
+    grid-template-columns: 75px 1fr;
+    grid-row: 1fr;
+    list-style: none;
+    padding-bottom: 1rem;
+    transition: .3s ease;
+    line-height: 0;
+}
+#list li:hover {
+    box-shadow: 0px 0px 61px 3px rgba(0,0,0,0.3) inset;
+}
+#list li img {
+    height: 42px;
+    width: 42px;
+    margin: 0 auto;
+    padding-top: 12px;
+    grid-row-start: 1;
+    grid-row-end: 2;
+}
+#list li p {
+    grid-row: 1;
+    grid-column: 2;
+}
+#list li h4 {
+    grid-row: 2;
+    grid-column: 2;
+}

src/app/payment/payment.component.html

@@ -1,9 +1,23 @@
-<div class="payment">
+<div class="payment request" *ngIf="this.backend.isInvoiceRequested()">
+    <h3 id="title">Choose your<br>payment method</h3>
+    <p id="price">{{ this.backend.invoice!!.totalPrice!!.toFixed(2) }} €</p>
+
+    <ul id="list">
+        <li *ngFor="let coin of this.backend.invoice!!.paymentMethods" (click)="chooseMethod(coin.method)">
+            <img [src]="this.backend.getIcon(coin.method)">
+            <div>
+                <h4>{{ this.backend.findCryptoBySymbol(coin.method) }}</h4>
+                <p>{{ coin.amount }} {{ coin.method }}</p>
+            </div>
+        </li>
+    </ul>
+</div>
+<div class="payment main" *ngIf="!this.backend.isInvoiceRequested() && ready">
     <div class="qrWrapper">
         <div class="qr">
             <img src="assets/Bitcoin.svg">
             <qrcode
-                [qrdata]="'bitcoin:' + invoice!!.receiveAddress"
+                [qrdata]="'bitcoin:' + this.backend.invoice!!.receiveAddress"
                 [width]="256"
                 [errorCorrectionLevel]="'M'"
                 [elementType]="'svg'"
@@ -12,16 +26,16 @@
         </div>
     </div>
 
-    <div class="data" *ngIf="ready">
+    <div class="data">
         <!-- Payment data -->
         <span id="target">Send to
-            <h3>{{ invoice!!.receiveAddress }}</h3>
+            <h3>{{ this.backend.invoice!.receiveAddress }}</h3>
         </span>
         <span id="amount">Amount
-            <h3>{{ getAmount() }} BTC</h3>
+            <h3>{{ this.backend.getAmount() }} BTC</h3>
         </span>
         <span id="status">Status
-            <h3>{{ getStatus() }}</h3>
+            <h3>{{ this.backend.getStatus() }}</h3>
         </span>
     </div>
 </div>

src/app/payment/payment.component.ts

@@ -1,6 +1,6 @@
 import { Component, OnInit } from '@angular/core';
 import { ActivatedRoute } from '@angular/router';
-import { BackendService, IInvoice, CryptoUnits, PaymentStatus } from '../backend.service';
+import { BackendService, IInvoice, CryptoUnits, PaymentStatus, IPaymentMethod } from '../backend.service';
 
 @Component({
   selector: 'app-payment',
@@ -12,10 +12,9 @@ export class PaymentComponent implements OnInit {
   paymentSelector = '';
   choosenPaymentMethod = CryptoUnits.BITCOIN;
   ready = false;
-  invoice: IInvoice | null = null;
 
   constructor(
-    private backend: BackendService,
+    public backend: BackendService,
     private route: ActivatedRoute
   ) { }
 
@@ -27,32 +26,13 @@ export class PaymentComponent implements OnInit {
     });
   }
 
-  async get() {
+  chooseMethod(coin: CryptoUnits) {
-    this.invoice = await this.backend.getInvoice(this.paymentSelector);
+    this.backend.setPaymentMethod(coin);
+  }
+
+  async get(): Promise<void> {
+    await this.backend.setInvoice(this.paymentSelector);
     this.ready = true;
   }
 
-  getAmount() {
-    return this.invoice?.paymentMethods.find(item => {
-      return item.method === CryptoUnits.BITCOIN;
-    })?.amount.toFixed(8);
-  }
-
-  getStatus() {
-    switch (this.invoice?.status) {
-      case PaymentStatus.PENDING:
-        return 'Pending';
-      case PaymentStatus.PARTIALLY:
-        return 'Partly';
-      case PaymentStatus.UNCONFIRMED:
-        return 'Unconfirmed';
-      case PaymentStatus.DONE:
-        return 'Paid';
-      case PaymentStatus.CANCELLED:
-        return 'Cancelled';
-      default:
-        return 'Unknown';
-    }
-  }
-
 }

src/assets/BitcoinCash.svg

@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   height="64"
+   width="64"
+   version="1.1"
+   id="svg905"
+   sodipodi:docname="BitcoinCash.svg"
+   inkscape:version="1.0.1 (3bc2e813f5, 2020-09-07)">
+  <metadata
+     id="metadata911">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs909" />
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1024"
+     id="namedview907"
+     showgrid="false"
+     inkscape:zoom="8.859375"
+     inkscape:cx="32"
+     inkscape:cy="32"
+     inkscape:window-x="1920"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="g903" />
+  <g
+     transform="translate(0.00630876,-0.00301984)"
+     id="g903">
+    <path
+       fill="#f7931a"
+       d="m63.033,39.744c-4.274,17.143-21.637,27.576-38.782,23.301-17.138-4.274-27.571-21.638-23.295-38.78,4.272-17.145,21.635-27.579,38.775-23.305,17.144,4.274,27.576,21.64,23.302,38.784z"
+       id="path899"
+       style="fill:#679a1b;fill-opacity:1" />
+    <path
+       fill="#FFF"
+       d="m46.103,27.444c0.637-4.258-2.605-6.547-7.038-8.074l1.438-5.768-3.511-0.875-1.4,5.616c-0.923-0.23-1.871-0.447-2.813-0.662l1.41-5.653-3.509-0.875-1.439,5.766c-0.764-0.174-1.514-0.346-2.242-0.527l0.004-0.018-4.842-1.209-0.934,3.75s2.605,0.597,2.55,0.634c1.422,0.355,1.679,1.296,1.636,2.042l-1.638,6.571c0.098,0.025,0.225,0.061,0.365,0.117-0.117-0.029-0.242-0.061-0.371-0.092l-2.296,9.205c-0.174,0.432-0.615,1.08-1.609,0.834,0.035,0.051-2.552-0.637-2.552-0.637l-1.743,4.019,4.569,1.139c0.85,0.213,1.683,0.436,2.503,0.646l-1.453,5.834,3.507,0.875,1.439-5.772c0.958,0.26,1.888,0.5,2.798,0.726l-1.434,5.745,3.511,0.875,1.453-5.823c5.987,1.133,10.489,0.676,12.384-4.739,1.527-4.36-0.076-6.875-3.226-8.515,2.294-0.529,4.022-2.038,4.483-5.155zm-8.022,11.249c-1.085,4.36-8.426,2.003-10.806,1.412l1.928-7.729c2.38,0.594,10.012,1.77,8.878,6.317zm1.086-11.312c-0.99,3.966-7.1,1.951-9.082,1.457l1.748-7.01c1.982,0.494,8.365,1.416,7.334,5.553z"
+       id="path901" />
+  </g>
+</svg>

src/assets/Ethereum.svg

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg width="256px" height="417px" viewBox="0 0 256 417" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" preserveAspectRatio="xMidYMid">
+	<g>
+		<polygon fill="#343434" points="127.9611 0 125.1661 9.5 125.1661 285.168 127.9611 287.958 255.9231 212.32"/>
+		<polygon fill="#8C8C8C" points="127.962 0 0 212.32 127.962 287.959 127.962 154.158"/>
+		<polygon fill="#3C3C3B" points="127.9611 312.1866 126.3861 314.1066 126.3861 412.3056 127.9611 416.9066 255.9991 236.5866"/>
+		<polygon fill="#8C8C8C" points="127.962 416.9052 127.962 312.1852 0 236.5852"/>
+		<polygon fill="#141414" points="127.9611 287.9577 255.9211 212.3207 127.9611 154.1587"/>
+		<polygon fill="#393939" points="0.0009 212.3208 127.9609 287.9578 127.9609 154.1588"/>
+	</g>
+</svg>

src/assets/Litecoin.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="2500" height="2500" viewBox="0.847 0.876 329.254 329.256"><title>Litecoin</title><path d="M330.102 165.503c0 90.922-73.705 164.629-164.626 164.629C74.554 330.132.848 256.425.848 165.503.848 74.582 74.554.876 165.476.876c90.92 0 164.626 73.706 164.626 164.627" fill="#bebebe"/><path d="M295.15 165.505c0 71.613-58.057 129.675-129.674 129.675-71.616 0-129.677-58.062-129.677-129.675 0-71.619 58.061-129.677 129.677-129.677 71.618 0 129.674 58.057 129.674 129.677" fill="#bebebe"/><path d="M155.854 209.482l10.693-40.264 25.316-9.249 6.297-23.663-.215-.587-24.92 9.104 17.955-67.608h-50.921l-23.481 88.23-19.605 7.162-6.478 24.395 19.59-7.156-13.839 51.998h135.521l8.688-32.362h-84.601" fill="#fff"/></svg>

src/assets/Monero.svg

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 22.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg version="1.1" id="monero" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 viewBox="0 0 200 200" style="enable-background:new 0 0 200 200;" xml:space="preserve">
+<style type="text/css">
+	.st0{fill:none;}
+	.st1{fill:#F16822;}
+	.st2{fill:#4D4D4D;}
+</style>
+<g>
+	<path class="st0" d="M197.5,100c0,53.8-43.7,97.5-97.5,97.5c-53.8,0-97.5-43.7-97.5-97.5C2.5,46.1,46.1,2.5,100,2.5
+		C153.8,2.5,197.5,46.1,197.5,100z"/>
+	<path id="_149931032_1_" class="st1" d="M100,2.5C46.2,2.5,2.4,46.2,2.5,100c0,10.8,1.7,21.1,4.9,30.8h29.2v-82l63.4,63.4
+		l63.4-63.4v82h29.2c3.2-9.7,4.9-20,5-30.8C197.6,46.2,153.8,2.5,100,2.5L100,2.5z"/>
+	<path id="_149931160_1_" class="st2" d="M85.4,126.7L57.8,99v51.6H47.2H36.6l-20,0c17.1,28.1,48,46.9,83.3,46.9
+		c35.3,0,66.2-18.8,83.3-46.9l-20,0h-18.9h-2.2V99l-27.7,27.7L100,141.3L85.4,126.7L85.4,126.7z"/>
+</g>
+</svg>

src/styles.css

@@ -1,8 +1,13 @@
 /* You can add global styles to this file, and also import other style files */
-*{
+* {
     font-family: 'Inter', sans-serif;
 }
 
+body, html {
+    margin: 0;
+    padding: 0;
+}
+
 :host{
     -webkit-font-smoothing: antialiased;
     -moz-osx-font-smoothing: grayscale;