taler-ios

iOS apps for GNU Taler (wallet)
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URLSheet.swift (4394B)

      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 
     12 struct URLSheet: View {
     13     private let symLog = SymLogV(0)
     14     let stack: CallStack
     15     let selectedBalance: Balance?
     16     @Binding var urlToOpen: URL?
     17     let sheetURL: URL?
     18 
     19     @EnvironmentObject private var controller: Controller
     20     @EnvironmentObject private var model: WalletModel
     21     @AppStorage("shouldShowWarning") var shouldShowWarning: Bool = true
     22     @AppStorage("oimEuro") var oimEuro: Bool = false
     23 
     24     @State private var amountToTransfer = Amount.zero(currency: EMPTYSTRING)
     25     @State private var summary = EMPTYSTRING
     26     @State private var urlCommand: UrlCommand?
     27     @State private var passedURL: URL?
     28 
     29     init(_ stack: CallStack, selectedBalance: Balance? = nil,
     30                                    urlToOpen: Binding<URL?>? = nil,
     31                                     sheetURL: URL? = nil) {
     32         self.stack = stack
     33         self.selectedBalance = selectedBalance
     34         self._urlToOpen = urlToOpen ?? Binding.constant(nil)
     35         self.sheetURL = sheetURL
     36     }
     37 
     38 //  don't need  @MainActor  here
     39     private func passUrlOnce() {
     40         if let url = urlToOpen {
     41             symLog.log("❗️ passed urlToOpen:  \(url.absoluteString)")
     42             (urlCommand, passedURL) = controller.urlCommand(url, stack: stack.push())
     43             urlToOpen = nil     // make sure we don't get this a second time
     44         } else if let sheetURL {
     45             (urlCommand, passedURL) = controller.urlCommand(sheetURL, stack: stack.push())
     46         }
     47     }
     48 
     49     var body: some View {
     50 #if PRINT_CHANGES
     51         let _ = Self._printChanges()
     52         let _ = symLog.vlog(urlToOpen?.absoluteString)       // just to get the # to compare it with .onAppear & onDisappear
     53 #endif
     54             if let urlCommand, let passedURL {
     55                 switch urlCommand {
     56                     case .addExchange:      // TODO: just check the ToS
     57                         ExchangeListView(stack: stack.push(), url: $passedURL)
     58                     case .withdraw:
     59                         WithdrawUriScan(stack: stack.push(), url: passedURL)
     60                     case .withdrawExchange:
     61                         WithdrawExchangeScan(stack: stack.push(),
     62                                    selectedBalance: selectedBalance,
     63                                                url: passedURL)
     64                     case .pay:
     65                         PaymentScan(stack: stack.push(), url: passedURL,
     66                                  template: false, amountToTransfer: $amountToTransfer,     summary: $summary,
     67                          amountIsEditable: false, summaryIsEditable: false)
     68                     case .payPull:
     69                         P2pPayURIView(stack: stack.push(), url: passedURL)
     70                     case .payPush:
     71                         P2pReceiveURIView(stack: stack.push(), url: passedURL, oimEuro:     oimEuro)
     72                     case .payTemplate:
     73                         PayTemplateScan(stack: stack.push(), url: passedURL)
     74                     case .refund:
     75                         RefundURIView(stack: stack.push(), url: passedURL)
     76 #if GNU_TALER || TALER_NIGHTLY
     77                     case .devExperiment:
     78                         DevExperimentView(stack: stack.push(), url: passedURL)
     79 #endif
     80                     default:        // TODO: Error view
     81                         let unknown = String(localized: "Unknown command: \(passedURL.trimmedString)")
     82                         VStack {
     83                             let _ = symLog.log("Unknown command❗️ \(passedURL.absoluteString)")
     84                             Text(controller.messageForSheet ?? unknown)
     85                                 .talerFont(.title)
     86                         }
     87                         .navigationTitle(unknown)
     88                 }
     89             } else {
     90                 let message = String(localized: "Scanning...", comment: "loading")
     91                 LoadingView(stack: stack.push(), scopeInfo: nil, message: message)
     92                     .task(id: urlToOpen) {
     93                         passUrlOnce()
     94                     }
     95             }
     96     }
     97 }
     98 // MARK: -
     99 //struct PaySheet_Previews: PreviewProvider {
    100 //    static var previews: some View {
    101             // needs BackendManager
    102 //        URLSheet(urlToOpen: URL(string: "ftp://this.URL.is.invalid")!)
    103 //    }
    104 //}