taler-ios

iOS apps for GNU Taler (wallet)
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BalancesListView.swift (5232B)

      1 /*
      2  * This file is part of GNU Taler, ©2022-26 Taler Systems S.A.
      3  * See LICENSE.md
      4  */
      5 /**
      6  * @author Marc Stibane
      7  */
      8 import SwiftUI
      9 import taler_swift
     10 import SymLog
     11 import AVFoundation
     12 
     13 /// This view shows the list of balances / currencies, each in its own section
     14 struct BalancesListView: View {
     15     private let symLog = SymLogV(0)
     16     let stack: CallStack
     17     let title: String
     18     @Binding var selectedBalance: Balance?                      // set in TransactionsListView
     19     @Binding var reloadTransactions: Int
     20 
     21     @EnvironmentObject private var model: WalletModel
     22     @EnvironmentObject private var controller: Controller
     23     @Environment(\.accessibilityVoiceOverEnabled) private var voiceOverEnabled
     24     @AppStorage("myListStyle") var myListStyle: MyListStyle = .automatic
     25     @AppStorage("oimEuro") var oimEuro: Bool = false
     26 
     27     @State private var amountToTransfer = Amount.zero(currency: EMPTYSTRING)    // Update currency when used
     28     @State private var summary = EMPTYSTRING
     29 
     30     @State private var historyTapped: Int? = nil
     31     @Namespace var namespace
     32 
     33     private static func className() -> String {"\(self)"}
     34 
     35     func refresh() async {
     36         controller.hapticNotification(.success)
     37         symLog.log("refreshing balances")
     38         await controller.loadBalances(stack.push("refreshing balances"), model)
     39     }
     40 
     41     @ViewBuilder
     42     func balancesList() -> some View {
     43         let count = controller.balances.count
     44         let list = List {
     45             if !controller.haveProdBalance && !controller.defaultExchanges.isEmpty {
     46                 ProdSectionView(stack: stack.push(), isEmpty: false, disabled: false)
     47             }
     48             ForEachWithIndex(data: controller.balances) { index, balance in
     49                 BalancesSectionView(stack: stack.push("\(balance.scopeInfo.currency)"),
     50                                   balance: balance,                     // this is the currency to be used
     51                           selectedBalance: $selectedBalance,            // set in TransactionsListView
     52                              balanceIndex: index,
     53                              sectionCount: count,
     54                          amountToTransfer: $amountToTransfer,           // does still have the wrong currency
     55                                   summary: $summary,
     56                             historyTapped: $historyTapped,
     57                        reloadTransactions: $reloadTransactions)
     58             }
     59 #if DEBUG || TALER_NIGHTLY
     60             if count > 1 {      // otherwise it comes before recentTransactions
     61                 DiscountPassesSection(stack: stack.push())
     62             }
     63 #endif
     64         }
     65             .listStyle(myListStyle.style).anyView
     66             .background(FullBackground())
     67             .onAppear() {
     68                 DebugViewC.shared.setViewID(VIEW_BALANCES, stack: stack.push("onAppear"))
     69                 if !controller.oimModeActive {
     70                     print("🚩BalancesListView.onAppear() reset selectedBalance")
     71 //                  if count > 1 {
     72                         selectedBalance = nil                           // reset
     73 //                  }
     74                 }
     75             }
     76             .refreshable {
     77                 await refresh()
     78             }
     79             .navigationTitle(title)
     80         if #available(iOS 26.0, *) {
     81             let list26 = list
     82                 .toolbar {
     83                     ToolbarItem(placement: .topBarTrailing) {   //secondaryAction
     84                         SettingsButton26(sortPriority: 0)
     85                     }
     86                 }
     87 #if OIM
     88             if controller.oimModeActive || voiceOverEnabled {
     89                 list    // hide SettingsButton (in Toolbar)
     90             } else {
     91                 list26
     92             }
     93 #else
     94             list26
     95 #endif
     96         } else {
     97             list
     98         }
     99     }
    100 
    101     var body: some View {
    102 #if PRINT_CHANGES
    103         let _ = Self._printChanges()
    104         let _ = symLog.vlog()       // just to get the # to compare it with .onAppear & onDisappear
    105 #endif
    106         /// In standard mode, selectedBalance just sets a "preference" which balance to pre-select for Actions.
    107         ///   However, the user can select another balance (with the picker) in each action
    108         /// In OIM mode, the user selects a balance 'here' (in OIMView) when tapping on a savings box (representing the balance)
    109 
    110         balancesList()
    111             .onChange(of: controller.oimModeActive) { oimModeActive in
    112                 if !oimModeActive {
    113                     print("🚩BalancesListView.onChange(of: oimModeActive) reset selectedBalance")
    114 //                    if count > 1 {
    115                         selectedBalance = nil                               // reset
    116 //                    }
    117                  }
    118             }
    119             .overlay { if #available(iOS 16.4, *) {
    120                 if controller.oimModeActive {
    121 #if OIM
    122                     OIMbalances(stack: stack.push(),
    123                       selectedBalance: $selectedBalance,                    // set to user choice
    124                         historyTapped: $historyTapped,
    125                               oimEuro: oimEuro)
    126                         .environmentObject(NamespaceWrapper(namespace))         // keep OIMviews apart
    127 #endif // OIM
    128                 }
    129             } }
    130     }
    131 }