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annotate LazyBearWatchOS Extension/Views/Home/HomeView.swift @ 452:bb69f9d1d20f

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Implement HomeView in WatchOS
author Dennis Concepción Martín <dennisconcepcionmartin@gmail.com>
date Sat, 26 Jun 2021 18:45:31 +0200
parents 8621ba6fd457
children 37c13ebda381
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1 //
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2 // HomeView.swift
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3 // LazyBearWatchOS Extension
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4 //
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5 // Created by Dennis Concepción Martín on 22/6/21.
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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 HomeView: View {
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12 @ObservedObject var profile = Profile()
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13
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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 timer = Timer.publish(every: 10, on: .main, in: .common).autoconnect() /// Set recurrent price request
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18
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19 var body: some View {
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20 if profile.showView {
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21 NavigationView {
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22 ScrollView {
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23 VStack {
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24 if let companies = profile.data.quotes {
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25 ForEach(companies, id: \.self) { company in
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26 CompanyRow(company: company)
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27 }
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28 }
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29 }
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30 }
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31 .navigationTitle("Lazybear")
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32 .onAppear { self.timer = Timer.publish(every: 10, on: .main, in: .common).autoconnect() } /// Start timer
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33 .onDisappear { self.timer.upstream.connect().cancel() } /// Stop timer
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34 .onReceive(timer) { _ in prepareUrl(.streaming) }
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35 }
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36 } else {
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37 ProgressView()
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38 .onAppear { prepareUrl(.initial) }
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39 }
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40 }
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41
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42 /*
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43 Get symbols in watchlists (Core Data) -> Prepare url -> Request
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44 */
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45 private func prepareUrl(_ requestType: RequestType) {
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46 let symbols = Set(watchlistCompanies.map { $0.symbol })
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47 let symbolsString = symbols.joined(separator:",")
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48
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49 switch requestType {
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50 case .initial:
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51 let url = "https://api.lazybear.app/profile/type=initial/symbols=\(symbolsString)"
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52 profile.request(url, .initial)
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53
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54 default:
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55 let url = "https://api.lazybear.app/profile/type=streaming/symbols=\(symbolsString)"
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56 profile.request(url, .streaming)
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57 }
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58 }
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59 }
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60
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61 struct HomeView_Previews: PreviewProvider {
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62 static var previews: some View {
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63 HomeView()
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64 }
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65 }