Mercurial > public > lazybear

annotate LazyBear/Views/Profile/ProfileView.swift @ 399:5c99883c7964

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Implementing networking in CompanyView
author Dennis Concepción Martín <66180929+denniscm190@users.noreply.github.com>
date Sat, 15 May 2021 12:31:40 +0200
parents 4c90e5b18632
children f843c6382529
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1 //
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2 // ProfileView.swift
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3 // LazyBear
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4 //
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5 // Created by Dennis Concepción Martín on 4/4/21.
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6 //
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7
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8 import SwiftUI
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9 import CoreData
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10
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11 struct ProfileView: View {
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12 @ObservedObject var profile = Profile()
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13 @Environment(\.managedObjectContext) private var moc
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14 @FetchRequest(entity: WatchlistCompany.entity(), sortDescriptors: [])
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15 var watchlistCompanies: FetchedResults<WatchlistCompany>
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16
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17 @State private var showCreateNewWatchlist = false
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18
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19 // Set recurrent price request
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20 @State private var timer = Timer.publish(every: 10, on: .main, in: .common).autoconnect()
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21
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22 var body: some View {
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23 if profile.showView {
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24 NavigationView {
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25 List {
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26 // Get Watchlist names -> Create rows for each watchlist -> in each row, show companies
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27 let watchlists = Set(watchlistCompanies.map { $0.watchlist }) // Set -> avoid duplicates names
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28
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29 ForEach(Array(watchlists).sorted(), id: \.self) { listName in
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30 let symbols = watchlistCompanies.filter({ $0.watchlist == listName }).map { $0.symbol }
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31
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32 if let companies = profile.data.quotes {
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33 // Select from API requested companies only the ones withing the watchlist
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34 let list = companies.filter({ symbols.contains($0.key) })
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35 StockRow(listName: listName, list: list, intradayPrices: profile.data.intradayPrices, addOnDelete: true)
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36 }
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37 }
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38 .listRowInsets(EdgeInsets())
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39 .onAppear { // Refresh API requested companies when Core Data changes
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40 refreshList()
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41 }
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42 }
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43 .onAppear { self.timer = Timer.publish(every: 10, on: .main, in: .common).autoconnect() } // Start timer
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44 .onReceive(timer) { _ in prepareUrl(isInitRequest: false) }
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45 .onDisappear { self.timer.upstream.connect().cancel() } // Stop timer
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46 .navigationTitle("My profile")
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47 .navigationBarTitleDisplayMode(.inline)
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48 .toolbar {
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49 ToolbarItem(placement: .navigationBarTrailing) {
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50 Button(action: { showCreateNewWatchlist = true }) {
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51 Image(systemName: "plus")
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52 }
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53 }
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54 }
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55 }
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56 .fullScreenCover(isPresented: $showCreateNewWatchlist) {
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57 WatchlistCreator()
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58 .environment(\.managedObjectContext, self.moc)
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59 }
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60 } else {
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61 ProgressView()
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62 .onAppear { prepareUrl(isInitRequest: true) }
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63 }
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64 }
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65
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66 /*
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67 Get symbols in watchlists -> Prepare url -> Request
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68 */
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69 private func prepareUrl(isInitRequest: Bool) {
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70 if watchlistCompanies.isEmpty {
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71 profile.showView = true
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72 } else {
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73 let symbols = watchlistCompanies.map { $0.symbol }
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74 var typeRequest = "streaming"
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75 if isInitRequest { typeRequest = "init" }
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76 var url = "https://api.lazybear.app/profile/type=\(typeRequest)/symbols="
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77
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78 var counter = 0
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79 for symbol in symbols {
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80 counter += 1
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81
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82 if counter == 1 {
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83 url += symbol
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84 } else {
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85 url += ",\(symbol)"
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86 }
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87 }
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88 profile.request(url, isInitRequest: isInitRequest)
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89 }
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90 }
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91
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92 /*
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93 When a company is added to a watchlist or a new watchlist is created -> call function
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94 to make the API request and refresh correctly the list
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95 */
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96 private func refreshList() {
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97 print("Companies in watchlist -> \(watchlistCompanies.count)")
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98 print("Companies requested -> \(profile.data.quotes!.count)")
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99
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100 if profile.data.quotes!.count < watchlistCompanies.count {
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101 prepareUrl(isInitRequest: true)
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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 struct ProfileView_Previews: PreviewProvider {
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107 static var previews: some View {
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108 ProfileView()
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109 }
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110 }