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/*
* This file is part of GNU Taler, ©2022-23 Taler Systems S.A.
* See LICENSE.md
*/
import SwiftUI
import taler_swift
import SymLog
func p2pFee(ppCheck: CheckPeerPushDebitResponse) -> Amount? {
do {
// Outgoing: fee = effective - raw
let fee = try ppCheck.amountEffective - ppCheck.amountRaw
return fee
} catch {}
return nil
}
struct P2PSubjectV: View {
private let symLog = SymLogV(0)
let stack: CallStack
let feeLabel: String?
let feeIsNotZero: Bool? // nil = no fees at all, false = no fee for this tx
let currencyInfo: CurrencyInfo
let amountToSend: Bool
@Binding var amountToTransfer: Amount
@Binding var summary: String
@Binding var expireDays: UInt
@EnvironmentObject private var model: WalletModel
@Environment(\.colorScheme) private var colorScheme
@Environment(\.colorSchemeContrast) private var colorSchemeContrast
@AppStorage("minimalistic") var minimalistic: Bool = false
@State private var myFeeLabel: String = EMPTYSTRING
@State private var transactionStarted: Bool = false
@FocusState private var isFocused: Bool
private func buttonTitle(_ amount: Amount, _ currencyInfo: CurrencyInfo) -> String {
let amountWithCurrency = amount.string(currencyInfo, useSymbol: false)
return amountToSend ? String(localized: "Send \(amountWithCurrency) now",
comment: "amount with currency")
: String(localized: "Request \(amountWithCurrency)",
comment: "amount with currency")
}
private func subjectTitle(_ amount: Amount, _ currencyInfo: CurrencyInfo) -> String {
let amountStr = amount.string(currencyInfo)
return amountToSend ? String(localized: "NavTitle_Send_AmountStr",
defaultValue: "Send \(amountStr)",
comment: "NavTitle: Send 'amountStr'")
: String(localized: "NavTitle_Request_AmountStr",
defaultValue: "Request \(amountStr)",
comment: "NavTitle: Request 'amountStr'")
}
var body: some View {
#if PRINT_CHANGES
let _ = Self._printChanges()
let _ = symLog.vlog(amountToTransfer.readableDescription) // just to get the # to compare it with .onAppear & onDisappear
#endif
ScrollView { VStack (alignment: .leading, spacing: 6) {
if let feeIsNotZero { // don't show fee if nil
let label = feeLabel ?? myFeeLabel
if label.count > 0 {
Text(label)
.frame(maxWidth: .infinity, alignment: .trailing)
.foregroundColor(feeIsNotZero ? .red : WalletColors().secondary(colorScheme, colorSchemeContrast))
.talerFont(.body)
}
}
if !minimalistic {
Text("Enter subject:") // Purpose
.talerFont(.title3)
.accessibilityAddTraits(.isHeader)
.accessibilityRemoveTraits(.isStaticText)
.padding(.top)
}
Group { if #available(iOS 16.0, *) {
TextField(minimalistic ? "Subject" : EMPTYSTRING, text: $summary, axis: .vertical)
.focused($isFocused)
.lineLimit(2...)
} else {
TextField("Subject", text: $summary)
.focused($isFocused)
// .lineLimit(2...5) // lineLimit' is only available in iOS 16.0 or newer
} } // Group for iOS16+ & iOS15
.talerFont(.title2)
.foregroundColor(WalletColors().fieldForeground) // text color
.background(WalletColors().fieldBackground)
.textFieldStyle(.roundedBorder)
.onAppear {
if !UIAccessibility.isVoiceOverRunning {
symLog.log("dispatching kbd...")
DispatchQueue.main.asyncAfter(deadline: .now() + 0.7) {
isFocused = true // make first responder - raise keybord
symLog.log("...kbd isFocused")
}
}
}
Text(verbatim: "\(summary.count)/100") // maximum 100 characters
.frame(maxWidth: .infinity, alignment: .trailing)
.talerFont(.body)
.accessibilityValue(String(localized: "\(summary.count) characters of 100"))
// TODO: compute max Expiration day from peerPushCheck to disable 30 (and even 7)
SelectDays(selected: $expireDays, maxExpiration: THIRTYDAYS)
.disabled(false)
.padding(.bottom)
let disabled = (expireDays == 0) || (summary.count < 1) // TODO: check amountAvailable
NavigationLink(destination: LazyView {
P2PReadyV(stack: stack.push(),
summary: summary,
expireDays: expireDays,
amountToSend: amountToSend,
amountToTransfer: amountToTransfer,
transactionStarted: $transactionStarted)
}) {
Text(buttonTitle(amountToTransfer, currencyInfo))
}
.buttonStyle(TalerButtonStyle(type: .prominent, disabled: disabled))
.disabled(disabled)
.accessibilityHint(disabled ? String(localized: "enabled when subject and expiration are set") : EMPTYSTRING)
}.padding(.horizontal) } // ScrollVStack
// .scrollBounceBehavior(.basedOnSize) needs iOS 16.4
.navigationTitle(subjectTitle(amountToTransfer, currencyInfo))
.background(WalletColors().backgroundColor.edgesIgnoringSafeArea(.all))
.onAppear {
DebugViewC.shared.setViewID(VIEW_P2P_SUBJECT, stack: stack.push())
// print("❗️ P2PSubjectV onAppear")
}
.onDisappear {
// print("❗️ P2PSubjectV onDisappear")
}
.task(id: amountToTransfer.value) {
if amountToSend && feeLabel == nil {
if let ppCheck = try? await model.checkPeerPushDebitM(amountToTransfer) {
if let feeAmount = p2pFee(ppCheck: ppCheck) {
let feeStr = feeAmount.string(currencyInfo)
myFeeLabel = String(localized: "+ \(feeStr) fee")
} else { myFeeLabel = EMPTYSTRING }
}
}
}
}
}
// MARK: -
#if DEBUG
//struct SendPurpose_Previews: PreviewProvider {
// static var previews: some View {
// @State var summary: String = ""
// @State var expireDays: UInt = 0
// let amount = Amount(currency: LONGCURRENCY, integer: 10, fraction: 0)
// SendPurpose(amountAvailable: amount,
// amountToTransfer: 543,
// fee: "0,43",
// summary: $summary,
// expireDays: $expireDays)
// }
//}
#endif
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