690 lines
26 KiB
Swift
690 lines
26 KiB
Swift
import AVFoundation
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import CryptoKit
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import SwiftUI
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import UIKit
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struct WalletView: View {
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@EnvironmentObject private var model: AppModel
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@StateObject private var store = DiscountCardStore()
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@State private var selectedPage = 0
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@State private var scannerPresented = false
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@State private var pendingScan: ScannedCard?
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@State private var scannerError: String?
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@State private var dragOffset: CGFloat = 0
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@State private var changingPage = false
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var body: some View {
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walletCarousel
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.background(KTheme.background)
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.toolbar { walletToolbar }
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.onAppear { selectedPage = 0 }
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.task(id: model.user?.id) { await store.sync(using: model) }
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.fullScreenCover(isPresented: $scannerPresented) { scannerView }
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.sheet(item: $pendingScan, content: nameSheet)
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.alert(
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model.text("Nie można uruchomić aparatu", "Cannot open the camera"),
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isPresented: scannerErrorBinding,
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actions: scannerAlertActions,
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message: { Text(scannerError ?? "") }
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)
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}
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private var walletCarousel: some View {
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GeometryReader { geometry in
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AnyView(currentPage)
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.id(pageIdentity)
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.offset(x: dragOffset)
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.offset(y: carouselArc(width: geometry.size.width))
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.scaleEffect(carouselScale(width: geometry.size.width))
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.rotation3DEffect(carouselAngle(width: geometry.size.width), axis: (x: 0, y: 1, z: 0), perspective: 0.9)
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.opacity(carouselOpacity(width: geometry.size.width))
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.shadow(color: .black.opacity(carouselShadow), radius: 24, x: dragOffset < 0 ? 12 : -12)
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.contentShape(Rectangle())
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.simultaneousGesture(carouselGesture(width: geometry.size.width))
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.overlay(alignment: .bottom) { pageIndicator }
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.clipped()
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}
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}
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@ToolbarContentBuilder private var walletToolbar: some ToolbarContent {
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AppToolbar()
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}
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private var scannerView: some View {
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CardScannerScreen(
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onScan: { scan in
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scannerPresented = false
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.25) { pendingScan = scan }
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},
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onCancel: { scannerPresented = false },
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onError: { error in
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scannerPresented = false
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scannerError = error
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}
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)
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.ignoresSafeArea()
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}
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private func nameSheet(for scan: ScannedCard) -> some View {
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CardNameSheet(scan: scan) { name in
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store.add(name: name, scan: scan)
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pendingScan = nil
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selectedPage = store.cards.count
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Task { await store.upload(using: model) }
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}
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.environmentObject(model)
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.presentationDetents([.medium])
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}
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private var scannerErrorBinding: Binding<Bool> {
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Binding(
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get: { scannerError != nil },
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set: { if !$0 { scannerError = nil } }
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)
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}
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@ViewBuilder private func scannerAlertActions() -> some View {
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Button("OK", role: .cancel) { scannerError = nil }
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Button(model.text("Ustawienia", "Settings")) {
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if let url = URL(string: UIApplication.openSettingsURLString) {
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UIApplication.shared.open(url)
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}
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}
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}
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private func carouselScale(width: CGFloat) -> CGFloat {
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1 - min(abs(dragOffset) / max(width, 1), 1) * 0.14
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}
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private func carouselAngle(width: CGFloat) -> Angle {
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.degrees(Double(dragOffset / max(width, 1)) * 68)
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}
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private func carouselArc(width: CGFloat) -> CGFloat {
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let progress = min(abs(dragOffset) / max(width, 1), 1)
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return progress * progress * 34
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}
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private func carouselOpacity(width: CGFloat) -> Double {
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1 - min(Double(abs(dragOffset) / max(width, 1)), 1) * 0.28
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}
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private var carouselShadow: Double { min(Double(abs(dragOffset) / 520), 0.42) }
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private func carouselGesture(width: CGFloat) -> some Gesture {
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DragGesture(minimumDistance: 18)
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.onChanged { value in
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guard !changingPage,
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abs(value.translation.width) > abs(value.translation.height) else { return }
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dragOffset = value.translation.width
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}
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.onEnded { value in finishDrag(value, width: width) }
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}
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@ViewBuilder private var currentPage: some View {
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if selectedPage == 0 {
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CardView()
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} else if selectedPage <= store.cards.count {
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let card = store.cards[selectedPage - 1]
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DiscountCardView(card: card) {
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store.delete(card)
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selectedPage = 0
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Task { await store.upload(using: model) }
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}
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} else {
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AddDiscountCardView { scannerPresented = true }
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}
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}
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private var pageIdentity: String {
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if selectedPage == 0 { return "kasztelan" }
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if selectedPage <= store.cards.count { return store.cards[selectedPage - 1].id.uuidString }
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return "add-card"
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}
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private var pageIndicator: some View {
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HStack(spacing: 7) {
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ForEach(0..<(store.cards.count + 2), id: \.self) { index in
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Circle()
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.fill(index == selectedPage ? KTheme.orange : Color.secondary.opacity(0.5))
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.frame(width: index == selectedPage ? 8 : 6, height: index == selectedPage ? 8 : 6)
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}
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}
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.padding(.horizontal, 12)
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.padding(.vertical, 8)
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.background(.black.opacity(0.35), in: Capsule())
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.padding(.bottom, 2)
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.allowsHitTesting(false)
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}
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private func finishDrag(_ value: DragGesture.Value, width: CGFloat) {
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guard !changingPage else { return }
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let horizontal = abs(value.translation.width) > abs(value.translation.height)
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let predicted = value.predictedEndTranslation.width
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guard horizontal, max(abs(value.translation.width), abs(predicted)) > max(52, width * 0.15) else {
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changingPage = true
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withAnimation(.easeOut(duration: 0.14)) { dragOffset = 0 }
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.15) { changingPage = false }
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return
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}
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changingPage = true
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let direction = predicted < 0 ? 1 : -1
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let pageCount = store.cards.count + 2
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var instant = Transaction()
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instant.disablesAnimations = true
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withTransaction(instant) {
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selectedPage = (selectedPage + direction + pageCount) % pageCount
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dragOffset = direction > 0 ? width * 0.72 : -width * 0.72
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}
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DispatchQueue.main.async {
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withAnimation(.easeOut(duration: 0.26)) { dragOffset = 0 }
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.27) { changingPage = false }
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}
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}
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}
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private struct AddDiscountCardView: View {
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@EnvironmentObject private var model: AppModel
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let scan: () -> Void
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var body: some View {
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VStack(spacing: 22) {
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Spacer()
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Image(systemName: "barcode.viewfinder")
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.font(.system(size: 72, weight: .semibold))
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.foregroundStyle(KTheme.orange)
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Text(model.text("Dodaj kartę rabatową", "Add a loyalty card"))
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.font(.title2.bold())
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Text(model.text(
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"Zeskanuj kod z plastikowej karty. Zaszyfrujemy go i przypiszemy do Twojego konta.",
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"Scan the code from a plastic card. It will be encrypted and linked to your account."
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))
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.multilineTextAlignment(.center)
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.foregroundStyle(.secondary)
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.padding(.horizontal, 30)
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Button(model.text("Skanuj kartę", "Scan card"), action: scan)
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.buttonStyle(PrimaryButtonStyle())
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.padding(.horizontal, 24)
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Spacer()
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}
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.padding(.bottom, 34)
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.frame(maxWidth: .infinity, maxHeight: .infinity)
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.background(KTheme.background)
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}
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}
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private struct DiscountCardView: View {
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@EnvironmentObject private var model: AppModel
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let card: DiscountCard
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let delete: () -> Void
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@State private var confirmingDelete = false
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var body: some View {
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VStack(alignment: .leading, spacing: 18) {
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HStack {
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VStack(alignment: .leading, spacing: 3) {
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Text(card.name).font(.largeTitle.bold()).lineLimit(2)
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Text(model.text("Karta rabatowa", "Loyalty card")).foregroundStyle(.secondary)
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}
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Spacer()
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Button(role: .destructive) { confirmingDelete = true } label: {
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Image(systemName: "trash.circle.fill").font(.title)
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}
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.accessibilityLabel(model.text("Usuń kartę", "Delete card"))
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}
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VStack(spacing: 18) {
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StoredBarcodeView(value: card.payload, symbology: card.symbology)
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.frame(maxWidth: .infinity)
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.frame(height: card.isTwoDimensional ? 220 : 132)
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.padding(14)
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.background(.white)
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.clipShape(RoundedRectangle(cornerRadius: 14, style: .continuous))
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Text(card.payload)
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.font(.system(.headline, design: .monospaced).weight(.bold))
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.multilineTextAlignment(.center)
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.textSelection(.enabled)
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.lineLimit(3)
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.minimumScaleFactor(0.65)
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}
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.frame(maxWidth: .infinity)
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.padding(22)
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.background(LinearGradient(
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colors: [KTheme.purple, KTheme.pink, KTheme.orange],
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startPoint: .topLeading,
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endPoint: .bottomTrailing
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))
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.clipShape(RoundedRectangle(cornerRadius: 26, style: .continuous))
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Text(model.text("Dostępna offline • zaszyfrowana synchronizacja", "Available offline • encrypted sync"))
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.font(.footnote)
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.foregroundStyle(.secondary)
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.frame(maxWidth: .infinity, alignment: .center)
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Spacer()
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}
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.padding(.horizontal, 20)
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.padding(.vertical, 14)
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.background(KTheme.background)
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.alert(model.text("Usunąć kartę?", "Delete this card?"), isPresented: $confirmingDelete) {
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Button(model.text("Anuluj", "Cancel"), role: .cancel) {}
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Button(model.text("Usuń", "Delete"), role: .destructive, action: delete)
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}
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}
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}
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private struct CardNameSheet: View {
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@EnvironmentObject private var model: AppModel
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@Environment(\.dismiss) private var dismiss
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let scan: ScannedCard
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let save: (String) -> Void
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@State private var name = ""
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var body: some View {
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NavigationStack {
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VStack(alignment: .leading, spacing: 16) {
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Text(model.text("Jak nazywa się ta karta?", "What card is this?"))
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.font(.title2.bold())
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KasztelanField(title: model.text("Np. Tesco Clubcard", "e.g. Tesco Clubcard"), text: $name)
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Button(model.text("Zapisz kartę", "Save card")) {
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let trimmed = name.trimmingCharacters(in: .whitespacesAndNewlines)
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save(trimmed.isEmpty ? model.text("Karta rabatowa", "Loyalty card") : trimmed)
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dismiss()
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}
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.buttonStyle(PrimaryButtonStyle())
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Spacer()
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}
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.padding(20)
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.background(KTheme.background)
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.toolbar {
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ToolbarItem(placement: .cancellationAction) {
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Button(model.text("Anuluj", "Cancel")) { dismiss() }
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}
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}
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}
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}
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}
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struct DiscountCard: Codable, Identifiable, Equatable {
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let id: UUID
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let name: String
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let payload: String
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let symbology: String
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let createdAt: Date
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var isTwoDimensional: Bool {
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let type = AVMetadataObject.ObjectType(rawValue: symbology)
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return type == .qr || type == .aztec || type == .pdf417
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}
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}
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@MainActor
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final class DiscountCardStore: ObservableObject {
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@Published private(set) var cards: [DiscountCard] = []
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private var userID: Int?
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private var syncing = false
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init() {}
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func add(name: String, scan: ScannedCard) {
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cards.append(DiscountCard(
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id: UUID(),
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name: name,
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payload: scan.value,
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symbology: scan.symbology,
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createdAt: Date()
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))
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save()
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setDirty(true)
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}
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func delete(_ card: DiscountCard) {
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cards.removeAll { $0.id == card.id }
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save()
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setDirty(true)
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}
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func sync(using model: AppModel) async {
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guard let id = model.user?.id else { return }
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activate(userID: id)
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guard !syncing else { return }
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syncing = true
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defer { syncing = false }
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do {
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let cloud = try await model.cloudWallet()
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guard let key = cloud.key, !key.isEmpty else { return }
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if isDirty {
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try await saveToCloud(key: key, using: model)
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} else if let payload = cloud.payload, !payload.isEmpty {
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cards = try Self.decrypt(payload: payload, key: key)
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save()
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setDirty(false)
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} else if !cards.isEmpty {
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try await saveToCloud(key: key, using: model)
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}
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} catch {
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// Local cards remain available offline and will sync next time.
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}
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}
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func upload(using model: AppModel) async {
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guard let id = model.user?.id else { return }
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activate(userID: id)
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guard !syncing else { return }
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syncing = true
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defer { syncing = false }
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do {
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let cloud = try await model.cloudWallet()
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guard let key = cloud.key, !key.isEmpty else { return }
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try await saveToCloud(key: key, using: model)
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} catch {
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setDirty(true)
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}
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}
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private func activate(userID: Int) {
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guard self.userID != userID else { return }
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self.userID = userID
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let accountCards = Self.load(from: fileURL)
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if accountCards.isEmpty, let legacyURL = Self.legacyFileURL {
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let legacyCards = Self.load(from: legacyURL)
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cards = legacyCards
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if !legacyCards.isEmpty {
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save()
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setDirty(true)
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}
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} else {
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cards = accountCards
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}
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}
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static func clearLocal(for userID: Int?) {
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guard let userID, let supportDirectory else { return }
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let accountURL = supportDirectory.appendingPathComponent("kasztelan-discount-cards-\(userID).json")
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try? FileManager.default.removeItem(at: accountURL)
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if let legacyFileURL { try? FileManager.default.removeItem(at: legacyFileURL) }
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UserDefaults.standard.removeObject(forKey: "kasztelan-wallet-dirty-\(userID)")
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}
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private static var supportDirectory: URL? {
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FileManager.default.urls(for: .applicationSupportDirectory, in: .userDomainMask).first
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}
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private static var legacyFileURL: URL? {
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supportDirectory?.appendingPathComponent("kasztelan-discount-cards.json")
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}
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private var fileURL: URL? {
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guard let userID else { return nil }
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return Self.supportDirectory?.appendingPathComponent("kasztelan-discount-cards-\(userID).json")
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}
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private var dirtyKey: String? { userID.map { "kasztelan-wallet-dirty-\($0)" } }
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private var isDirty: Bool { dirtyKey.map { UserDefaults.standard.bool(forKey: $0) } ?? false }
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private func setDirty(_ dirty: Bool) {
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guard let dirtyKey else { return }
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UserDefaults.standard.set(dirty, forKey: dirtyKey)
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}
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private static func load(from fileURL: URL?) -> [DiscountCard] {
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guard let fileURL, let data = try? Data(contentsOf: fileURL) else { return [] }
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return (try? JSONDecoder().decode([DiscountCard].self, from: data)) ?? []
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}
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private func save() {
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guard let fileURL,
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let data = try? JSONEncoder().encode(cards) else { return }
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try? FileManager.default.createDirectory(
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at: fileURL.deletingLastPathComponent(),
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withIntermediateDirectories: true,
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attributes: [.protectionKey: FileProtectionType.completeUntilFirstUserAuthentication]
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)
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try? data.write(to: fileURL, options: [.atomic, .completeFileProtectionUntilFirstUserAuthentication])
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}
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private func saveToCloud(key: String, using model: AppModel) async throws {
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let payload = try Self.encrypt(cards: cards, key: key)
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try await model.saveCloudWallet(payload)
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setDirty(false)
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if let legacyURL = Self.legacyFileURL { try? FileManager.default.removeItem(at: legacyURL) }
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}
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private struct CloudCard: Codable {
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let id: String
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let name: String
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let payload: String
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let format: String
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let createdAt: Int64
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enum CodingKeys: String, CodingKey {
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case id, name, payload, format
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case createdAt = "created_at"
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}
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}
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private static func encrypt(cards: [DiscountCard], key: String) throws -> String {
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guard let keyData = Data(base64Encoded: key), keyData.count == 32 else { throw APIError.invalidResponse }
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let cloudCards = cards.map {
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CloudCard(
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id: $0.id.uuidString,
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name: $0.name,
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payload: $0.payload,
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format: canonicalFormat($0.symbology),
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createdAt: Int64($0.createdAt.timeIntervalSince1970 * 1000)
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)
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}
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let plain = try JSONEncoder().encode(cloudCards)
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let sealed = try AES.GCM.seal(plain, using: SymmetricKey(data: keyData))
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guard let combined = sealed.combined else { throw APIError.invalidResponse }
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return combined.base64EncodedString()
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}
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private static func decrypt(payload: String, key: String) throws -> [DiscountCard] {
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guard let keyData = Data(base64Encoded: key), keyData.count == 32,
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let encrypted = Data(base64Encoded: payload) else { throw APIError.invalidResponse }
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let plain = try AES.GCM.open(
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AES.GCM.SealedBox(combined: encrypted),
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using: SymmetricKey(data: keyData)
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)
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return try JSONDecoder().decode([CloudCard].self, from: plain).compactMap { item in
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guard let id = UUID(uuidString: item.id), !item.payload.isEmpty else { return nil }
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return DiscountCard(
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id: id,
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name: item.name,
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payload: item.payload,
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symbology: nativeFormat(item.format),
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createdAt: Date(timeIntervalSince1970: Double(item.createdAt) / 1000)
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)
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}
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}
|
||
|
||
private static func canonicalFormat(_ format: String) -> String {
|
||
let type = AVMetadataObject.ObjectType(rawValue: format)
|
||
switch type {
|
||
case .ean13: return "EAN_13"
|
||
case .ean8: return "EAN_8"
|
||
case .code128: return "CODE_128"
|
||
case .code39: return "CODE_39"
|
||
case .code93: return "CODE_93"
|
||
case .upce: return "UPC_E"
|
||
case .qr: return "QR_CODE"
|
||
case .aztec: return "AZTEC"
|
||
case .pdf417: return "PDF_417"
|
||
case .dataMatrix: return "DATA_MATRIX"
|
||
case .itf14: return "ITF"
|
||
default: return format
|
||
}
|
||
}
|
||
|
||
private static func nativeFormat(_ format: String) -> String {
|
||
switch format {
|
||
case "EAN_13": return AVMetadataObject.ObjectType.ean13.rawValue
|
||
case "EAN_8": return AVMetadataObject.ObjectType.ean8.rawValue
|
||
case "CODE_128": return AVMetadataObject.ObjectType.code128.rawValue
|
||
case "CODE_39": return AVMetadataObject.ObjectType.code39.rawValue
|
||
case "CODE_93": return AVMetadataObject.ObjectType.code93.rawValue
|
||
case "UPC_E": return AVMetadataObject.ObjectType.upce.rawValue
|
||
case "QR_CODE": return AVMetadataObject.ObjectType.qr.rawValue
|
||
case "AZTEC": return AVMetadataObject.ObjectType.aztec.rawValue
|
||
case "PDF_417": return AVMetadataObject.ObjectType.pdf417.rawValue
|
||
case "DATA_MATRIX": return AVMetadataObject.ObjectType.dataMatrix.rawValue
|
||
case "ITF": return AVMetadataObject.ObjectType.itf14.rawValue
|
||
default: return format
|
||
}
|
||
}
|
||
}
|
||
|
||
struct ScannedCard: Identifiable {
|
||
let id = UUID()
|
||
let value: String
|
||
let symbology: String
|
||
}
|
||
|
||
struct CardScannerScreen: View {
|
||
@EnvironmentObject private var model: AppModel
|
||
let onScan: (ScannedCard) -> Void
|
||
let onCancel: () -> Void
|
||
let onError: (String) -> Void
|
||
|
||
var body: some View {
|
||
ZStack {
|
||
CardScannerCamera(onScan: onScan, onError: onError)
|
||
VStack {
|
||
HStack {
|
||
Button(action: onCancel) {
|
||
Image(systemName: "xmark.circle.fill")
|
||
.font(.system(size: 34))
|
||
.foregroundStyle(.white)
|
||
.shadow(radius: 4)
|
||
}
|
||
Spacer()
|
||
}
|
||
.padding(20)
|
||
Spacer()
|
||
Text(model.text("Umieść cały kod w ramce", "Place the whole code inside the frame"))
|
||
.font(.headline)
|
||
.foregroundStyle(.white)
|
||
.padding(.horizontal, 18)
|
||
.padding(.vertical, 12)
|
||
.background(.black.opacity(0.65), in: Capsule())
|
||
Button(action: onCancel) {
|
||
Text(model.text("Anuluj", "Cancel"))
|
||
.font(.headline)
|
||
.foregroundStyle(.white)
|
||
.frame(maxWidth: .infinity)
|
||
.padding(.vertical, 14)
|
||
.background(KTheme.orange, in: RoundedRectangle(cornerRadius: 14, style: .continuous))
|
||
}
|
||
.contentShape(Rectangle())
|
||
.padding(.horizontal, 44)
|
||
.padding(.top, 14)
|
||
.padding(.bottom, 32)
|
||
}
|
||
RoundedRectangle(cornerRadius: 24)
|
||
.stroke(KTheme.orange, lineWidth: 4)
|
||
.frame(width: 310, height: 230)
|
||
.shadow(color: .black.opacity(0.5), radius: 8)
|
||
.allowsHitTesting(false)
|
||
}
|
||
.background(.black)
|
||
}
|
||
}
|
||
|
||
private struct CardScannerCamera: UIViewControllerRepresentable {
|
||
let onScan: (ScannedCard) -> Void
|
||
let onError: (String) -> Void
|
||
|
||
func makeUIViewController(context: Context) -> ScannerViewController {
|
||
let controller = ScannerViewController()
|
||
controller.onScan = onScan
|
||
controller.onError = onError
|
||
return controller
|
||
}
|
||
|
||
func updateUIViewController(_ uiViewController: ScannerViewController, context: Context) {}
|
||
}
|
||
|
||
private final class ScannerViewController: UIViewController, AVCaptureMetadataOutputObjectsDelegate {
|
||
var onScan: ((ScannedCard) -> Void)?
|
||
var onError: ((String) -> Void)?
|
||
private let session = AVCaptureSession()
|
||
private let sessionQueue = DispatchQueue(label: "uk.co.kasztelan.card-scanner")
|
||
private var previewLayer: AVCaptureVideoPreviewLayer?
|
||
private var completed = false
|
||
|
||
override func viewDidLoad() {
|
||
super.viewDidLoad()
|
||
view.backgroundColor = .black
|
||
prepareCamera()
|
||
}
|
||
|
||
override func viewDidLayoutSubviews() {
|
||
super.viewDidLayoutSubviews()
|
||
previewLayer?.frame = view.bounds
|
||
}
|
||
|
||
override func viewWillDisappear(_ animated: Bool) {
|
||
super.viewWillDisappear(animated)
|
||
sessionQueue.async { [session] in if session.isRunning { session.stopRunning() } }
|
||
}
|
||
|
||
private func prepareCamera() {
|
||
switch AVCaptureDevice.authorizationStatus(for: .video) {
|
||
case .authorized:
|
||
configureSession()
|
||
case .notDetermined:
|
||
AVCaptureDevice.requestAccess(for: .video) { [weak self] granted in
|
||
DispatchQueue.main.async {
|
||
if granted { self?.configureSession() }
|
||
else { self?.onError?("Aplikacja potrzebuje dostępu do aparatu, aby skanować karty.") }
|
||
}
|
||
}
|
||
default:
|
||
onError?("Włącz dostęp do aparatu dla Kasztelan w Ustawieniach iPhone’a.")
|
||
}
|
||
}
|
||
|
||
private func configureSession() {
|
||
guard let camera = AVCaptureDevice.default(for: .video),
|
||
let input = try? AVCaptureDeviceInput(device: camera),
|
||
session.canAddInput(input) else {
|
||
onError?("Nie znaleziono dostępnego aparatu.")
|
||
return
|
||
}
|
||
session.addInput(input)
|
||
let output = AVCaptureMetadataOutput()
|
||
guard session.canAddOutput(output) else {
|
||
onError?("Nie można uruchomić skanera kodów.")
|
||
return
|
||
}
|
||
session.addOutput(output)
|
||
output.setMetadataObjectsDelegate(self, queue: .main)
|
||
let supported: [AVMetadataObject.ObjectType] = [
|
||
.code128, .ean13, .ean8, .qr, .aztec, .pdf417
|
||
]
|
||
output.metadataObjectTypes = supported.filter { output.availableMetadataObjectTypes.contains($0) }
|
||
|
||
let preview = AVCaptureVideoPreviewLayer(session: session)
|
||
preview.videoGravity = .resizeAspectFill
|
||
view.layer.insertSublayer(preview, at: 0)
|
||
previewLayer = preview
|
||
preview.frame = view.bounds
|
||
sessionQueue.async { [session] in session.startRunning() }
|
||
}
|
||
|
||
func metadataOutput(
|
||
_ output: AVCaptureMetadataOutput,
|
||
didOutput metadataObjects: [AVMetadataObject],
|
||
from connection: AVCaptureConnection
|
||
) {
|
||
guard !completed,
|
||
let code = metadataObjects.compactMap({ $0 as? AVMetadataMachineReadableCodeObject }).first,
|
||
let value = code.stringValue,
|
||
!value.isEmpty else { return }
|
||
completed = true
|
||
UINotificationFeedbackGenerator().notificationOccurred(.success)
|
||
sessionQueue.async { [session] in if session.isRunning { session.stopRunning() } }
|
||
onScan?(ScannedCard(value: value, symbology: code.type.rawValue))
|
||
}
|
||
}
|