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annotate Simoleon/ConversionView.swift @ 185:2fc95efcb1ee

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connect backend
author Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
date Wed, 22 Dec 2021 16:12:23 +0100
parents d2398f02e1ce
children 1ebd1c5dd302
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1 //
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2 // ConversionView.swift
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3 // Simoleon
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4 //
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5 // Created by Dennis Concepción Martín on 8/12/21.
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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 ConversionView: View {
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11 var showNavigationView: Bool?
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12
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13 // CurrencySelector variables
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14 @State private var baseCurrency = SupportedCurrencyResult(code: "EUR", name: "Euro", isCrypto: 0)
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15 @State private var quoteCurrency = SupportedCurrencyResult(code: "CHF", name: "Swiss Franc", isCrypto: 0)
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16 @State private var showingCurrencyList = false
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17 @State private var selecting: Selection = .baseCurrency
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18
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19 // CurrencyTextfield variables
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20 @State private var amount = "1"
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21
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22 // CurrencyConversion variables
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23 @State private var showConversion = false
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24 @State private var conversion = CurrencyConversionResponse(message: [CurrencyConversionResult]())
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25
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26 var body: some View {
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27 ScrollView(showsIndicators: false) {
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28 VStack(alignment: .leading, spacing: 20) {
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29 // MARK: - Currency selector
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30 HStack {
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31 Button(action: { showCurrencyList(selecting: .baseCurrency) }) {
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32 CurrencySelectorLabel(currency: baseCurrency)
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33 }
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34
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35 Button(action: { showCurrencyList(selecting: .quoteCurrency)}) {
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36 CurrencySelectorLabel(currency: quoteCurrency)
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37 }
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38
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39 // MARK: - Favorite button
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40 FavoriteButton()
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41
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42 }
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43 .padding(.bottom)
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44
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45 // MARK: - Conversion box
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46 Text("\(baseCurrency.code) - \(baseCurrency.name)")
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47 .font(.callout)
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48 .fontWeight(.semibold)
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49
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50 CurrencyTextfield(currencyCode: baseCurrency.code, amount: $amount)
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51 .onChange(of: amount) { _ in
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52 showConversion = false
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53 getConversion()
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54 }
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55
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56 Divider()
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57 Text("\(quoteCurrency.code) - \(quoteCurrency.name)")
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58 .font(.callout)
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59 .fontWeight(.semibold)
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60
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61 CurrencyConversion(
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62 conversion: conversion,
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63 currencyCode: quoteCurrency.code,
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64 showConversion: $showConversion
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65 )
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66 }
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67 .padding()
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68 .sheet(isPresented: $showingCurrencyList) {
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69 CurrencyList(baseCurrency: $baseCurrency, quoteCurrency: $quoteCurrency, selecting: selecting)
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70 }
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71 }
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72 .onAppear(perform: getConversion)
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73 .navigationTitle("Convert")
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74 .if(UIDevice.current.userInterfaceIdiom == .phone && showNavigationView ?? true) { content in
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75 NavigationView { content }
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76 }
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77 }
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78
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79 // Change selection and show CurrencyList()
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80 private func showCurrencyList(selecting: Selection) {
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81 self.selecting = selecting
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82 showingCurrencyList.toggle()
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83 }
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84
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85 // Request conversion
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86 private func getConversion() {
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87 guard let amount = Float(amount) else {
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88 amount = ""
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89 showConversion = true
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90 return
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91 }
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92
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93 let currencyPair = "\(baseCurrency.code)\(quoteCurrency.code)"
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94 let url = "https://api.simoleon.app/fx/convert?symbols=\(currencyPair)&amount=\(amount)"
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95 httpRequest(url: url, model: CurrencyConversionResponse.self) { response in
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96 conversion = response
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97 if conversion.message.isEmpty {
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98 // Handle exception
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99 } else {
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100 showConversion = true
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101 }
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102 }
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103 }
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104 }
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105
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106 enum Selection {
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107 case baseCurrency, quoteCurrency
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108 }
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109
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110 struct ConversionView_Previews: PreviewProvider {
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111 static var previews: some View {
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112 ConversionView(showNavigationView: true)
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113 }
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114 }