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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
// Will be called either by the user scanning a QR code or tapping the provided link,
// both from the shop's website. We show the payment details in a sheet.
struct PaymentView: View {
private let symLog = SymLogV(0)
let stack: CallStack
let navTitle = String(localized: "Confirm Payment", comment:"pay merchant")
// the scanned URL
let url: URL
let template: Bool
@Binding var amountToTransfer: Amount
@Binding var summary: String
@EnvironmentObject private var model: WalletModel
@EnvironmentObject private var controller: Controller
@AppStorage("myListStyle") var myListStyle: MyListStyle = .automatic
@State var preparePayResult: PreparePayResult? = nil
var body: some View {
Group {
if let preparePayResult {
let effective = preparePayResult.amountEffective
let terms = preparePayResult.contractTerms
List {
// TODO: show balanceDetails.balanceAvailable
let baseURL = preparePayResult.contractTerms.exchanges.first?.url
let raw = preparePayResult.amountRaw
let currency = raw.currencyStr
let topTitle = String(localized: "Amount to pay:")
let topAbbrev = String(localized: "Pay:", comment: "mini")
if let effective {
// TODO: already paid
let fee = try! Amount.diff(raw, effective) // TODO: different currencies
ThreeAmountsV(stack: stack.push(),
topTitle: topTitle,
topAbbrev: topAbbrev,
topAmount: raw, fee: fee,
bottomTitle: String(localized: "Amount to spend:"),
bottomAbbrev: String(localized: "Effective:", comment: "mini"),
bottomAmount: effective,
large: false, pending: false, incoming: false,
baseURL: baseURL,
noFees: nil, // TODO: check baseURL for fees
status: nil,
summary: terms.summary,
merchant: terms.merchant.name)
// TODO: payment: popup with all possible exchanges, check fees
} else if let balanceDetails = preparePayResult.balanceDetails { // Insufficient
Text("You don't have enough \(currency).")
.talerFont(.headline)
ThreeAmountsV(stack: stack.push(),
topTitle: topTitle,
topAbbrev: topAbbrev,
topAmount: raw, fee: nil,
bottomTitle: String(localized: "Amount available:"),
bottomAbbrev: String(localized: "Available:", comment: "mini"),
bottomAmount: balanceDetails.balanceAvailable,
large: false, pending: false, incoming: false,
baseURL: baseURL,
noFees: nil, // TODO: check baseURL for fees
status: nil,
summary: terms.summary,
merchant: terms.merchant.name)
} else {
// TODO: Error - neither effective nor balanceDetails
Text("Error")
.talerFont(.body)
}
}
.listStyle(myListStyle.style).anyView
.safeAreaInset(edge: .bottom) {
if let effective {
NavigationLink(destination: LazyView {
PaymentDone(stack: stack.push(),
transactionId: preparePayResult.transactionId)
}) {
Text(navTitle) // Confirm Payment
}
.buttonStyle(TalerButtonStyle(type: .prominent))
.padding(.horizontal)
} else {
Button("Cancel", action: {
dismissTop()
})
.buttonStyle(TalerButtonStyle(type: .bordered))
.padding(.horizontal)
}
}
.navigationTitle(navTitle)
} else {
LoadingView(scopeInfo: nil, message: url.host)
.task { // this runs only once
symLog.log(".task")
if template {
if let result = try? await model.preparePayForTemplateM(url.absoluteString,
amount: amountToTransfer,
summary: summary) {
preparePayResult = result
}
} else {
if let result = try? await model.preparePayForUriM(url.absoluteString) {
preparePayResult = result
}
}
}
}
}.onAppear() {
symLog.log("onAppear")
DebugViewC.shared.setSheetID(SHEET_PAYMENT)
}
}
}
// MARK: -
#if false
struct PaymentURIView_Previews: PreviewProvider {
static var previews: some View {
let merchant = Merchant(name: "Merchant")
let extra = Extra(articleName: "articleName")
let product = Product(description: "description")
let terms = MerchantContractTerms(hWire: "hWire",
wireMethod: "wireMethod",
summary: "summary",
summaryI18n: nil,
nonce: "nonce",
amount: Amount(currency: LONGCURRENCY, cent: 220),
payDeadline: Timestamp.tomorrow(),
maxFee: Amount(currency: LONGCURRENCY, cent: 20),
merchant: merchant,
merchantPub: "merchantPub",
deliveryDate: nil,
deliveryLocation: nil,
exchanges: [],
products: [product],
refundDeadline: Timestamp.tomorrow(),
wireTransferDeadline: Timestamp.tomorrow(),
timestamp: Timestamp.now(),
orderID: "orderID",
merchantBaseURL: "merchantBaseURL",
fulfillmentURL: "fulfillmentURL",
publicReorderURL: "publicReorderURL",
fulfillmentMessage: nil,
fulfillmentMessageI18n: nil,
wireFeeAmortization: 0,
maxWireFee: Amount(currency: LONGCURRENCY, cent: 20),
minimumAge: nil
// extra: extra,
// auditors: []
)
let details = PreparePayResult(status: PreparePayResultType.paymentPossible,
transactionId: "txn:payment:012345",
contractTerms: terms,
contractTermsHash: "termsHash",
amountRaw: Amount(currency: LONGCURRENCY, cent: 220),
amountEffective: Amount(currency: LONGCURRENCY, cent: 240),
balanceDetails: nil,
paid: nil
// , talerUri: "talerURI"
)
let url = URL(string: "taler://pay/some_amount")!
// @State private var amount: Amount? = nil // templateParam
// @State private var summary: String? = nil // templateParam
PaymentView(stack: CallStack("Preview"),
url: url, template: false, amountToTransfer: nil, summary: nil,
preparePayResult: details)
}
}
#endif
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