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annotate Simoleon/Settings.swift @ 24:bda6a55d027a

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Add Conversion to Favourites
author Dennis Concepción Martín <dennisconcepcionmartin@gmail.com>
date Tue, 20 Jul 2021 10:24:21 +0100
parents 699b5bb619db
children 933d9ab04374
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1 //
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2 // Settings.swift
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3 // Simoleon
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4 //
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5 // Created by Dennis Concepción Martín on 19/07/2021.
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6 //
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7
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8 import SwiftUI
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9
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10 struct Settings: View {
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11 @Environment(\.managedObjectContext) private var viewContext
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12 @FetchRequest(sortDescriptors: []) private var userSettings: FetchedResults<UserSettings>
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13 @State private var selectedCurrencyPair = "USD/GBP"
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14 let currencyPairs: [String] = parseJson("CurrencyPairs.json")
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15
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16 var body: some View {
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17 List {
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18 Section(header: Text("Preferences")) {
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19 Picker("Default currency", selection: $selectedCurrencyPair) {
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20 ForEach(currencyPairs.sorted(), id: \.self) { currencyPair in
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21 Text(currencyPair)
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22 }
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23 }
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24 }
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25
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26 Section(header: Text("Stay in touch")) {
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27 Link(destination: URL(string: "https://itunes.apple.com/app/id1576390953?action=write-review")!) {
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28 HStack {
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29 Image(systemName: "heart.fill")
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30 .foregroundColor(Color(.systemRed))
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31 .imageScale(.large)
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32
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33 Text("Rate Simoleon")
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34 }
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35 }
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36
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37 Link(destination: URL(string: "https://dennistech.io")!) {
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38 HStack {
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39 Image("TwitterLogo")
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40 .resizable()
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41 .frame(width: 30, height: 30)
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42
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43 Text("Follow on Twitter")
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44 }
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45 }
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46
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47 Link(destination: URL(string: "https://dennistech.io/contact")!) {
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48 HStack {
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49 Image(systemName: "envelope.circle.fill")
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50 .renderingMode(.original)
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51 .imageScale(.large)
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52
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53 Text("Contact")
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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 Section(header: Text("About")) {
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59 Link("Website", destination: URL(string: "https://dennistech.io")!)
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60 Link("Privacy Policy", destination: URL(string: "https://dennistech.io")!)
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61 Link("Developer's Twitter", destination: URL(string: "https://twitter.com/dennisconcep")!)
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62 }
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63 }
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64 .onChange(of: selectedCurrencyPair, perform: { selectedCurrencyPair in
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65 setDefaultCurrency()
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66 })
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67 .onAppear(perform: fetchUserSettings)
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68 .listStyle(InsetGroupedListStyle())
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69 .navigationTitle("Settings")
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70 .if(UIDevice.current.userInterfaceIdiom == .phone) { content in
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71 NavigationView { content }
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72 }
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73 }
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74
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75 /*
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76 1) Fetch default currency from User Settings
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77 2) Change State var currencyPair
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78 */
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79 private func fetchUserSettings() {
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80 if let userSettings = userSettings.first {
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81 self.selectedCurrencyPair = userSettings.defaultCurrency ?? "USD/GBP"
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82 }
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83 }
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84
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85 private func setDefaultCurrency() {
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86 if self.userSettings.isEmpty { /// If it's empty -> add record
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87 let userSettings = UserSettings(context: viewContext)
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88 userSettings.defaultCurrency = selectedCurrencyPair
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89
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90 do {
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91 try viewContext.save()
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92 } catch {
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93 print(error.localizedDescription)
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94 }
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95 } else { /// If not, update record
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96 self.userSettings.first?.defaultCurrency = selectedCurrencyPair
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97 try? viewContext.save()
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98 }
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99 }
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100 }
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101
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102 struct Settings_Previews: PreviewProvider {
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103 static var previews: some View {
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104 Settings()
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105 }
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106 }