Swap XMR and XRP through kyc.rip without leaving the app
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@@ -0,0 +1,345 @@
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import SwiftUI
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/// Swap between the two wallets via kyc.rip, the public no-KYC aggregator.
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struct SwapView: View {
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@EnvironmentObject private var model: AppModel
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@Binding var route: Route
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@State private var from: Chain = .xrp
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@State private var amount = ""
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@State private var estimate: SwapEstimate?
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@State private var estimating = false
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@State private var creating = false
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@State private var sendingDeposit = false
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@State private var createdOrder: SwapOrder?
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@State private var localError: String?
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@State private var qrAddress: AddressQR?
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private var to: Chain { from == .xrp ? .xmr : .xrp }
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private var fromBalance: Balance {
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if from == model.chain { return model.balance }
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return WalletStore.cachedState(from)?.balance ?? Balance(total: "0", unlocked: "", funded: false)
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}
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private var fromBalanceText: String {
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let value = Decimal(string: fromBalance.total) ?? 0
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let formatter = NumberFormatter()
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formatter.maximumFractionDigits = 6
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return formatter.string(from: value as NSDecimalNumber) ?? "0"
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}
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var body: some View {
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VStack(alignment: .leading, spacing: 18) {
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ScreenHeader(title: "Swap",
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subtitle: "XMR ↔ XRP, via kyc.rip — no account, no KYC",
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onBack: { route = .home })
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if let order = createdOrder {
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orderCard(order)
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} else {
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swapForm
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}
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if !model.swapOrders.isEmpty {
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recentSwaps
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}
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}
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.task {
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from = model.chain
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model.loadSwapOrders()
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}
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.bottomDrawer(isPresented: Binding(
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get: { qrAddress != nil },
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set: { if !$0 { qrAddress = nil } }
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)) {
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if let item = qrAddress {
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AddressQRSheet(title: item.title, address: item.address) { qrAddress = nil }
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}
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}
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}
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// MARK: - The form
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private var swapForm: some View {
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VStack(alignment: .leading, spacing: 14) {
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Card {
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VStack(alignment: .leading, spacing: 10) {
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HStack {
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Text("From")
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.font(.system(size: 12, weight: .medium))
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.foregroundStyle(Theme.muted)
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Spacer()
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Text("Balance: \(fromBalanceText) \(from.symbol)")
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.font(.system(size: 11))
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.foregroundStyle(Theme.muted)
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}
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HStack(spacing: 10) {
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KoinsTextField(placeholder: "Amount", text: $amount, keyboard: .decimalPad)
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Button("Max") { amount = fromBalanceText }
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.font(.system(size: 12, weight: .semibold))
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.foregroundStyle(Theme.accent)
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}
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HStack(spacing: 10) {
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Text(from.title)
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.font(.system(size: 14, weight: .semibold))
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.foregroundStyle(Theme.text)
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Spacer()
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Button {
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from = to
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amount = ""
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estimate = nil
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} label: {
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Image(systemName: "arrow.up.arrow.down")
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.font(.system(size: 14, weight: .semibold))
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.foregroundStyle(Theme.accent)
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.frame(width: 34, height: 34)
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.background(Theme.surfaceAlt)
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.clipShape(Circle())
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}
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.accessibilityLabel("Swap direction")
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}
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Divider().overlay(Theme.border)
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HStack {
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Text("To")
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.font(.system(size: 12, weight: .medium))
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.foregroundStyle(Theme.muted)
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Spacer()
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Text(to.title)
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.font(.system(size: 14, weight: .semibold))
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.foregroundStyle(Theme.text)
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}
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if let estimate {
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VStack(alignment: .leading, spacing: 4) {
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Text("≈ \(String(format: "%.6f", estimate.amountTo)) \(to.symbol)")
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.font(.system(size: 22, weight: .bold, design: .rounded))
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.foregroundStyle(Theme.text)
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if let route = estimate.routes.first {
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Text("via \(route.provider)\(route.eta.map { " · ~\($0) min" } ?? "")")
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.font(.system(size: 11))
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.foregroundStyle(Theme.muted)
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}
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}
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} else {
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Text("Enter an amount and get a quote")
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.font(.system(size: 12))
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.foregroundStyle(Theme.muted)
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}
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}
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}
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if let localError {
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MessageBanner(message: localError, isError: true)
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}
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if let status = model.statusMessage {
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MessageBanner(message: status, isError: false)
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}
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if estimate == nil {
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PrimaryButton(title: estimating ? "Getting quote…" : "Get quote", disabled: estimating) {
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Task { await loadQuote() }
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}
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} else {
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PrimaryButton(title: creating ? "Creating…" : "Swap", disabled: creating) {
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Task { await create() }
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}
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SecondaryButton(title: "Change amount") { estimate = nil }
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}
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Spacer(minLength: 0)
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}
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}
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// MARK: - The order
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private func orderCard(_ order: SwapOrder) -> some View {
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VStack(alignment: .leading, spacing: 14) {
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Card {
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VStack(alignment: .leading, spacing: 10) {
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HStack {
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Text("Swap deposit")
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.font(.system(size: 15, weight: .semibold))
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.foregroundStyle(Theme.text)
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Spacer()
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SwapStatusBadge(status: order.status ?? "WAITING")
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}
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Text("Send exactly \(order.depositAmount, specifier: "%.6g") \(order.fromTicker) to this address:")
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.font(.system(size: 12))
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.foregroundStyle(Theme.muted)
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HStack(spacing: 8) {
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Text(order.depositAddress)
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.font(.system(size: 11, design: .monospaced))
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.foregroundStyle(Theme.text)
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.lineLimit(1)
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.truncationMode(.middle)
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Button {
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qrAddress = AddressQR(title: "Deposit \(order.fromTicker)", address: order.depositAddress)
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} label: {
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Image(systemName: "qrcode")
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.font(.system(size: 13, weight: .semibold))
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.foregroundStyle(Theme.accent)
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.frame(width: 34, height: 34)
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.background(Theme.surfaceAlt)
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.clipShape(RoundedRectangle(cornerRadius: 10, style: .continuous))
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}
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.disabled(order.depositAddress.isEmpty)
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}
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.padding(.horizontal, 12)
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.padding(.vertical, 10)
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.background(Theme.surfaceAlt)
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.clipShape(RoundedRectangle(cornerRadius: 12, style: .continuous))
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if let memo = order.depositMemo, !memo.isEmpty {
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HStack {
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Text("Tag")
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.font(.system(size: 12, weight: .medium))
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.foregroundStyle(Theme.muted)
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Spacer()
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Text(memo)
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.font(.system(size: 13, design: .monospaced))
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.foregroundStyle(Theme.text)
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}
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}
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HStack {
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Text("You get")
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.font(.system(size: 12, weight: .medium))
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.foregroundStyle(Theme.muted)
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Spacer()
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Text("≈ \(order.toAmount, specifier: "%.6g") \(order.toTicker)")
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.font(.system(size: 13, weight: .semibold))
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.foregroundStyle(Theme.success)
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}
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if let eta = order.eta {
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HStack {
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Text("Usually takes")
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.font(.system(size: 12, weight: .medium))
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.foregroundStyle(Theme.muted)
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Spacer()
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Text("~\(eta) min")
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.font(.system(size: 13))
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.foregroundStyle(Theme.text)
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}
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}
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}
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}
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PrimaryButton(title: sendingDeposit ? "Sending…" : "Send deposit", disabled: sendingDeposit) {
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Task { await sendDeposit(order) }
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}
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SecondaryButton(title: "Refresh status") {
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Task { _ = await model.refreshSwapStatus(order) }
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}
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if let localError {
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MessageBanner(message: localError, isError: true)
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}
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Spacer(minLength: 0)
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}
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}
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private var recentSwaps: some View {
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VStack(alignment: .leading, spacing: 10) {
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Text("Recent swaps")
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.font(.system(size: 13, weight: .semibold))
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.foregroundStyle(Theme.muted)
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ForEach(model.swapOrders.prefix(6)) { order in
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Button {
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createdOrder = order
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} label: {
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HStack(spacing: 10) {
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VStack(alignment: .leading, spacing: 2) {
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Text("\(order.fromAmount, specifier: "%.6g") \(order.fromTicker) → \(order.toAmount, specifier: "%.6g") \(order.toTicker)")
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.font(.system(size: 13, weight: .medium))
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.foregroundStyle(Theme.text)
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Text(order.createdAt, style: .date)
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.font(.system(size: 11))
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.foregroundStyle(Theme.muted)
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}
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Spacer()
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SwapStatusBadge(status: order.status ?? "WAITING")
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}
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.padding(12)
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.background(Theme.surface)
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.clipShape(RoundedRectangle(cornerRadius: 14, style: .continuous))
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}
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.buttonStyle(.plain)
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.contentShape(Rectangle())
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}
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}
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}
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// MARK: - Actions
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private func loadQuote() async {
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localError = nil
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estimating = true
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defer { estimating = false }
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do {
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estimate = try await model.estimateSwap(amount: amount, from: from, to: to)
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if estimate?.routes.isEmpty == true {
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localError = "No provider offers this swap right now"
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estimate = nil
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}
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} catch {
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localError = error.localizedDescription
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}
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}
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private func create() async {
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guard let route = estimate?.routes.first else { return }
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localError = nil
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creating = true
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defer { creating = false }
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do {
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createdOrder = try await model.createSwap(route: route, amountFrom: amount, from: from, to: to)
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} catch {
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localError = error.localizedDescription
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}
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}
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private func sendDeposit(_ order: SwapOrder) async {
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localError = nil
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sendingDeposit = true
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defer { sendingDeposit = false }
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do {
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try await model.sendSwapDeposit(order)
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await model.refresh(force: true)
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} catch {
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localError = error.localizedDescription
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}
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}
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}
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struct SwapStatusBadge: View {
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var status: String
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private var colour: Color {
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switch status {
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case "FINISHED": return Theme.success
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case "WAITING", "CONFIRMING", "EXCHANGING", "SENDING": return Theme.accent
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default: return Theme.danger
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}
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}
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var body: some View {
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Text(status.lowercased().capitalized)
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.font(.system(size: 11, weight: .semibold))
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.foregroundStyle(colour)
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.padding(.horizontal, 10)
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.padding(.vertical, 4)
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.background(colour.opacity(0.15))
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.clipShape(Capsule())
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}
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}
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