taler-ios

iOS apps for GNU Taler (wallet)
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WalletEmptyView.swift (3700B)

      1 /*
      2  * This file is part of GNU Taler, ©2022-25 Taler Systems S.A.
      3  * See LICENSE.md
      4  */
      5 /**
      6  * @author Marc Stibane
      7  */
      8 import SwiftUI
      9 import SymLog
     10 import taler_swift
     11 
     12 /// This view shows hints if a wallet is empty
     13 /// It is the very first thing the user sees after installing the app
     14 
     15 struct WalletEmptyView: View {
     16     private let symLog = SymLogV(0)
     17     let stack: CallStack
     18 
     19     @Environment(\.colorScheme) private var colorScheme
     20     @Environment(\.colorSchemeContrast) private var colorSchemeContrast
     21     @EnvironmentObject private var model: WalletModel
     22     @AppStorage("myListStyle") var myListStyle: MyListStyle = .automatic
     23     @State private var withDrawStarted = false
     24 
     25     var body: some View {
     26         let list = List {
     27 #if false // EMPTY
     28             Section {
     29                 Text("There is no digital cash in your wallet yet.")
     30                     .talerFont(.title3)
     31             }
     32 #endif
     33             Section {
     34                 let qrButton = Image(systemName: QRBUTTON)                      // 􀎻 "qrcode.viewfinder"
     35                 let settings = Image(systemName: SETTINGS)                      // 􀍟 "gear"
     36                 Text("Use «\(qrButton) Scan QR code» in the Actions menu to start a withdrawal if your bank already supports Taler payments.", comment: "« 􀎻 » 'qrcode.viewfinder'")
     37                     .talerFont(.body)
     38                     .listRowSeparator(.hidden)
     39                 Text("You can also add a payment service manually in the \(settings) Settings tab.", comment: "« 􀍟 » 'gear'")
     40                     .talerFont(.body)
     41             } header: {
     42                 let firstHeader = String(localized: "Withdraw digital cash", comment: "section header")
     43                 Text(firstHeader)
     44                     .talerFont(.title3)
     45                     .foregroundColor(WalletColors().secondary(colorScheme, colorSchemeContrast))
     46             }
     47             Section {
     48                 Text("Get digital cash to experience how to pay with the money of the future.")
     49                     .talerFont(.body)
     50                     .listRowSeparator(.hidden)
     51                 let title = String(localized: "LinkTitle_Test_Money", defaultValue: "Get demo money")
     52                 Button(title) {
     53                     withDrawStarted = true    // don't run twice
     54                     Task { // runs on MainActor
     55                         let amount = Amount(currency:  DEMOCURRENCY, cent: 2500)
     56                         symLog.log("Withdraw KUDOS")
     57                         try? await model.loadTestKudos(0, amount: amount)
     58                     }
     59                 }
     60                 .buttonStyle(TalerButtonStyle(type: .prominent, narrow: false, disabled: withDrawStarted, aligned: .center))
     61                 .disabled(withDrawStarted)
     62             } header: {
     63                 let secondHeader = String(localized: "Demo", comment: "section header")
     64                 Text(secondHeader)
     65                     .talerFont(.title3)
     66                     .foregroundColor(WalletColors().secondary(colorScheme, colorSchemeContrast))
     67             }
     68         }
     69             .listStyle(myListStyle.style).anyView
     70             .talerFont(.title2)
     71             .background(WalletColors().backgroundColor.edgesIgnoringSafeArea(.all))
     72         ZStack {
     73             list
     74             if withDrawStarted {
     75                 RotatingTaler(size: 150, progress: true, rotationEnabled: $withDrawStarted)
     76             }
     77         }
     78         .onAppear() {
     79             DebugViewC.shared.setViewID(VIEW_EMPTY_WALLET, stack: stack.push("onAppear"))     // 10
     80         }
     81     }
     82 }
     83 
     84 struct WalletEmptyView_Previews: PreviewProvider {
     85     static var previews: some View {
     86         WalletEmptyView(stack: CallStack("Preview"))
     87     }
     88 }