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annotate Simoleon/UI/SubscribeButton.swift @ 156:84137052813d

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Refactor code
author Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
date Sat, 28 Aug 2021 11:15:25 +0100
parents Simoleon/Helpers/SubscribeButton.swift@3133bf6f6deb
children
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1 //
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2 // SubscribeButton.swift
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3 // Simoleon
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4 //
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5 // Created by Dennis Concepción Martín on 22/07/2021.
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6 //
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7
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8 import SwiftUI
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9 import Purchases
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10
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11 struct SubscribeButton: View {
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12 @Binding var showingSubscriptionPaywall: Bool
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13 @State private var price = ""
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14 @State private var alertTitle = ""
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15 @State private var alertMessage = ""
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16 @State private var showingAlert = false
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17 @State private var showingPrice = false
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18
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19 var body: some View {
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20 Button(action: purchaseMonthlySubscription) {
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21 RoundedRectangle(cornerRadius: 15)
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22 .frame(height: 60)
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23 .overlay(
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24 VStack {
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25 if showingPrice {
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26 Text("Subscribe for \(price) / month")
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27 .foregroundColor(.white)
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28 .fontWeight(.semibold)
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29 } else {
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30 ProgressView()
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31 }
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32 }
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33 )
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34 }
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35 .onAppear(perform: fetchMonthlySubscription)
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36 .alert(isPresented: $showingAlert) {
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37 Alert(title: Text(alertTitle), message: Text(alertMessage), dismissButton: .default(Text("Ok")))
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38 }
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39 }
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40
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41 private func fetchMonthlySubscription() {
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42 Purchases.shared.offerings { (offerings, error) in
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43 if let product = offerings?.current?.monthly?.product {
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44 price = formatCurrency(product.priceLocale, product.price)
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45 showingPrice = true
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46 }
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47
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48 if let error = error as NSError? {
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49 alertTitle = error.localizedDescription
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50 alertMessage = error.localizedFailureReason ?? ""
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51 price = "-"
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52 showingPrice = true
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53 showingAlert = true
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54 }
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55 }
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56 }
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57
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58 private func purchaseMonthlySubscription() {
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59 showingPrice = false
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60
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61 Purchases.shared.offerings { (offerings, error) in
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62 if let package = offerings?.current?.monthly {
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63
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64 Purchases.shared.purchasePackage(package) { (transaction, purchaserInfo, error, userCancelled) in
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65 if purchaserInfo?.entitlements["all"]?.isActive == true {
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66 showingPrice = true
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67 showingSubscriptionPaywall = false
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68 }
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69
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70 if let error = error as NSError? {
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71 alertTitle = error.localizedDescription
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72 alertMessage = error.localizedFailureReason ?? ""
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73 showingPrice = true
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74 showingAlert = true
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75 }
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76 }
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78 if let error = error as NSError? {
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79 alertTitle = error.localizedDescription
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80 alertMessage = error.localizedFailureReason ?? ""
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81 showingPrice = true
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82 showingAlert = true
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83 }
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84 }
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85 }
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86 }
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87
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88 private func formatCurrency(_ locale: Locale, _ amount: NSDecimalNumber) -> String {
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89 let formatter = NumberFormatter()
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90 formatter.locale = locale
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91 formatter.numberStyle = .currency
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92
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93 // It won't fail. Check unit test
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94 let formattedAmount = formatter.string(from: amount as NSNumber)!
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95
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96 return formattedAmount
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97 }
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98 }
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99
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100 struct SubscribeButton_Previews: PreviewProvider {
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101 static var previews: some View {
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102 SubscribeButton(showingSubscriptionPaywall: .constant(true))
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103 }
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104 }