feat(payment): implement change payment method (PATCH /payment-method)

- ChangePaymentMethodPayload + ChangePaymentMethodResult models
- ApiService.changePaymentMethod()
- PixPaymentContext gains storeId + order data for payment switch
- PaymentPixView: Trocar button opens ChangePaymentSheet with 3 options
- ChangePaymentSheet: Novo PIX (new QR), Cartão (saved or new), Pagar na Entrega
- ChangePaymentCardSheet + ChangePaymentNewCardView with same card masks/validation
- OrdersView/OrderEntryDestinationView: threaded appState binding

pedi-foods/Sources/PediFoods/Services/ApiCardModels.swift

@@ -65,3 +65,19 @@ struct CreditCardOrderPayload: Encodable {
     let expiryYear: String
     let ccv: String
 }
+
+struct ChangePaymentMethodPayload: Encodable {
+    let paymentMethod: String
+    let clientCpfCnpj: String?
+    let creditCard: CreditCardOrderPayload?
+    let creditCardHolderInfo: SaveCardHolderInfoPayload?
+    let savedCardId: String?
+}
+
+struct ChangePaymentMethodResult: Decodable {
+    let paymentMethod: String?
+    let paymentLocation: String?
+    let paymentId: String?
+    let paymentPayload: CreateOrderPaymentPayload?
+    let payment: CreateOrderPaymentInfo?
+}

pedi-foods/Sources/PediFoods/Services/ApiService.swift

@@ -451,6 +451,12 @@ final class ApiService {
         return try await sendEnvelope(req)
     }
 
+    func changePaymentMethod(storeId: String, orderId: String, payload: ChangePaymentMethodPayload) async throws -> ApiEnvelope<ChangePaymentMethodResult> {
+        let body = try JSONEncoder().encode(payload)
+        let req = ApiRequest(path: "/api/store/\(storeId)/orders/\(orderId)/payment-method", method: "PATCH", module: .store, requiresAuth: true, body: body)
+        return try await sendEnvelope(req)
+    }
+
     // MARK: - Profile CPF
 
     func updateProfileCpf(cpf: String) async throws -> ApiEnvelope<EmptyResult> {

pedi-foods/Sources/PediFoods/Views/Main/CheckoutView+Logic.swift

@@ -397,9 +397,24 @@ extension CheckoutView {
             ? pixFromPayment?.expirationDate : pixFromPayload?.expirationDate
 
         if let copyPaste, copyPaste.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty == false {
+            let itemsData = (try? JSONEncoder().encode(appState.cart.toOrderItemsPayload())).flatMap { String(data: $0, encoding: .utf8) } ?? "[]"
+            let storeId = appState.cart.storeId ?? ""
             pixPaymentContext = PixPaymentContext(
-                id: orderId, orderId: orderId, shortId: result.shortId,
+                id: orderId,
-                copyPaste: copyPaste, qrCodeImageBase64: qrCodeImage, expirationDate: expirationDate
+                orderId: orderId,
+                shortId: result.shortId,
+                storeId: storeId,
+                copyPaste: copyPaste,
+                qrCodeImageBase64: qrCodeImage,
+                expirationDate: expirationDate,
+                total: totalValue,
+                profileName: appState.profile.name,
+                profileEmail: appState.profile.email,
+                profilePhone: appState.profile.phone,
+                addressZip: selectedCustomerAddress?.zipCode,
+                addressNumber: selectedCustomerAddress?.number,
+                deliveryType: deliveryType.rawValue,
+                itemsJSON: itemsData
             )
             return
         }

pedi-foods/Sources/PediFoods/Views/Main/CheckoutView.swift

@@ -156,6 +156,7 @@ struct CheckoutView: View {
         .navigationDestination(item: $pixPaymentContext) { context in
             PaymentPixView(
                 context: context,
+                appState: $appState,
                 onPaymentConfirmed: {
                     appState.cart.clear()
                     SessionStateStore.clearPendingCartOrder()
@@ -560,9 +561,19 @@ struct PixPaymentContext: Identifiable, Hashable {
     let id: String
     let orderId: String
     let shortId: String?
+    let storeId: String
     let copyPaste: String
     let qrCodeImageBase64: String?
     let expirationDate: String?
+    // Para troca de pagamento
+    let total: Double
+    let profileName: String
+    let profileEmail: String
+    let profilePhone: String
+    let addressZip: String?
+    let addressNumber: String?
+    let deliveryType: String
+    let itemsJSON: String
 }
 
 struct OrderTrackingContext: Identifiable, Hashable {
@@ -625,6 +636,7 @@ struct CardPaymentContext: Identifiable, Hashable {
 
 struct PaymentPixView: View {
     let context: PixPaymentContext
+    @Binding var appState: AppState
     var onPaymentConfirmed: (() -> Void)? = nil
     var onOpenTracking: (() -> Void)? = nil
     @Environment(\.dismiss) var dismiss
@@ -633,9 +645,20 @@ struct PaymentPixView: View {
     @State var hasOpenedTracking = false
     @State var hasShownPixExpiredSnackbar = false
     @State var currentTime = Date()
+    @State var showChangePaymentSheet = false
+    @State var savedCards: [SavedCard] = []
+    @State var currentContext: PixPaymentContext
+
+    init(context: PixPaymentContext, appState: Binding<AppState>, onPaymentConfirmed: (() -> Void)? = nil, onOpenTracking: (() -> Void)? = nil) {
+        self.context = context
+        self._appState = appState
+        self.onPaymentConfirmed = onPaymentConfirmed
+        self.onOpenTracking = onOpenTracking
+        _currentContext = State(initialValue: context)
+    }
 
     private var qrImageSource: String? {
-        guard let raw = context.qrCodeImageBase64?.trimmingCharacters(in: .whitespacesAndNewlines),
+        guard let raw = currentContext.qrCodeImageBase64?.trimmingCharacters(in: .whitespacesAndNewlines),
               raw.isEmpty == false else { return nil }
         if raw.lowercased().hasPrefix("data:image") { return raw }
         return "data:image/png;base64,\(raw)"
@@ -683,7 +706,7 @@ struct PaymentPixView: View {
                     .frame(height: 20)
                     .overlay(
                         VStack(spacing: 8) {
-                            Text(context.copyPaste)
+                            Text(currentContext.copyPaste)
                                 .font(.system(size: 12, weight: .medium, design: .monospaced))
                                 .foregroundStyle(AppColors.textMuted)
                                 .lineLimit(0)
@@ -694,22 +717,42 @@ struct PaymentPixView: View {
                         .padding(.vertical, 14)
                     )
 
-                if let expirationDate = context.expirationDate, expirationDate.isEmpty == false {
+                if let expirationDate = currentContext.expirationDate, expirationDate.isEmpty == false {
                     Text(expirationLabel)
                         .font(.caption)
                         .foregroundStyle(isPixExpired ? Color.red : AppColors.textMuted)
                 }
 
+                HStack(spacing: 10) {
                     PrimaryButton(title: "Copiar Código PIX") {
                         if isPixExpired {
                             showPixExpiredSnackbar()
                             return
                         }
-                    copyToClipboard(context.copyPaste)
+                        copyToClipboard(currentContext.copyPaste)
                         SnackbarCenter.shared.show(title: "Código PIX copiado.", style: .success, icon: "doc.on.doc.fill", duration: 2.0)
                     }
                     .disabled(isPixExpired)
                     .opacity(isPixExpired ? 0.5 : 1.0)
+
+                    Button {
+                        Task { await loadSavedCards() }
+                        showChangePaymentSheet = true
+                    } label: {
+                        HStack(spacing: 6) {
+                            Text("Trocar")
+                                .font(AppTypography.heading3)
+                            Image(systemName: "chevron.down")
+                                .font(.system(size: 12, weight: .semibold))
+                        }
+                        .foregroundStyle(AppColors.textPrimary)
+                        .frame(height: 54)
+                        .padding(.horizontal, 16)
+                        .background(AppColors.surface)
+                        .clipShape(RoundedRectangle(cornerRadius: AppLayout.radiusLG, style: .continuous))
+                    }
+                    .buttonStyle(.plain)
+                }
                 .padding(.top, 10)
             }
             .padding(20)
@@ -717,6 +760,26 @@ struct PaymentPixView: View {
         .background(AppColors.backgroundLight)
         .navigationTitle("Pagamento via PIX")
         .appInlineNavigationTitle()
+        .sheet(isPresented: $showChangePaymentSheet) {
+            ChangePaymentSheet(
+                pixContext: currentContext,
+                savedCards: savedCards,
+                appState: $appState,
+                onChanged: { newContext in
+                    showChangePaymentSheet = false
+                    if let newContext {
+                        currentContext = newContext
+                        tracker.stop()
+                        tracker.start(orderId: newContext.orderId, jwt: DefaultTokenStore().jwt)
+                    }
+                },
+                onConfirmed: {
+                    showChangePaymentSheet = false
+                    onPaymentConfirmed?()
+                    openTrackingOnce()
+                }
+            )
+        }
         .task {
             tracker.onOrderUpdated = { updated in
                 latestOrder = updated
@@ -725,7 +788,7 @@ struct PaymentPixView: View {
                     openTrackingOnce()
                 }
             }
-            tracker.start(orderId: context.orderId, jwt: DefaultTokenStore().jwt)
+            tracker.start(orderId: currentContext.orderId, jwt: DefaultTokenStore().jwt)
         }
         .task {
             while Task.isCancelled == false {
@@ -752,8 +815,16 @@ struct PaymentPixView: View {
         appWriteClipboardText(value)
     }
 
+    @MainActor
+    private func loadSavedCards() async {
+        guard savedCards.isEmpty else { return }
+        if let cards = try? await ApiService().listCards().result {
+            savedCards = cards
+        }
+    }
+
     private var parsedExpirationDate: Date? {
-        let raw = (context.expirationDate ?? "").trimmingCharacters(in: .whitespacesAndNewlines)
+        let raw = (currentContext.expirationDate ?? "").trimmingCharacters(in: .whitespacesAndNewlines)
         guard raw.isEmpty == false else { return nil }
 
         let iso = ISO8601DateFormatter()
@@ -1257,3 +1328,347 @@ struct PaymentCardView: View {
         String(format: "R$ %.2f", value).replacingOccurrences(of: ".", with: ",")
     }
 }
+
+// MARK: - ChangePaymentSheet
+
+struct ChangePaymentSheet: View {
+    let pixContext: PixPaymentContext
+    let savedCards: [SavedCard]
+    @Binding var appState: AppState
+    let onChanged: (PixPaymentContext?) -> Void
+    let onConfirmed: () -> Void
+
+    @Environment(\.dismiss) var dismiss
+    @State var isSubmitting = false
+    @State var showCardSheet = false
+
+    var body: some View {
+        VStack(spacing: 0) {
+            HStack {
+                Text("Trocar Pagamento")
+                    .font(AppTypography.heading2)
+                    .foregroundStyle(AppColors.textPrimary)
+                Spacer()
+                Button { dismiss() } label: {
+                    Image(systemName: "xmark")
+                        .font(.system(size: 12, weight: .bold))
+                        .foregroundStyle(AppColors.textMuted)
+                        .frame(width: 30, height: 30)
+                        .background(AppColors.surface)
+                        .clipShape(Circle())
+                }
+                .buttonStyle(.plain)
+            }
+            .padding(.horizontal, 20)
+            .padding(.top, 20)
+            .padding(.bottom, 16)
+
+            ScrollView(showsIndicators: false) {
+                VStack(spacing: 12) {
+                    optionRow(icon: "qrcode", title: "Novo QR Code PIX", subtitle: "Gera um novo código PIX") {
+                        Task { await changeToMethod("PIX") }
+                    }
+                    optionRow(icon: "creditcard.fill", title: "Cartão de Crédito", subtitle: "Débito imediato no cartão") {
+                        showCardSheet = true
+                    }
+                    optionRow(icon: "banknote.fill", title: "Pagar na Entrega", subtitle: "Pague ao receber o pedido") {
+                        Task { await changeToMethod("CASH") }
+                    }
+                }
+                .padding(.horizontal, 20)
+                .padding(.bottom, 32)
+            }
+        }
+        .background(AppColors.backgroundLight)
+        .sheet(isPresented: $showCardSheet) {
+            let items = (try? JSONDecoder().decode([CreateOrderItemPayload].self, from: pixContext.itemsJSON.data(using: .utf8) ?? Data())) ?? []
+            let cardCtx = CardPaymentContext.build(storeId: pixContext.storeId, total: pixContext.total, deliveryType: pixContext.deliveryType, profile: appState.profile, address: nil, items: items)
+            ChangePaymentCardSheet(pixContext: pixContext, cardContext: cardCtx, savedCards: savedCards, appState: $appState) { _, _ in
+                showCardSheet = false
+                onConfirmed()
+            }
+        }
+    }
+
+    private func optionRow(icon: String, title: String, subtitle: String, action: @escaping () -> Void) -> some View {
+        Button(action: action) {
+            HStack(spacing: 14) {
+                Image(systemName: icon).font(.system(size: 20)).foregroundStyle(AppColors.primary)
+                    .frame(width: 44, height: 44).background(AppColors.brandSoft)
+                    .clipShape(RoundedRectangle(cornerRadius: 10, style: .continuous))
+                VStack(alignment: .leading, spacing: 3) {
+                    Text(title).font(AppTypography.heading3).foregroundStyle(AppColors.textPrimary)
+                    Text(subtitle).font(.caption).foregroundStyle(AppColors.textMuted)
+                }
+                Spacer()
+                if isSubmitting { ProgressView().scaleEffect(0.8) }
+                else { Image(systemName: "chevron.right").font(.system(size: 12, weight: .semibold)).foregroundStyle(AppColors.textMuted) }
+            }
+            .padding(14).background(AppColors.surface)
+            .clipShape(RoundedRectangle(cornerRadius: AppLayout.radiusLG, style: .continuous))
+        }
+        .buttonStyle(.plain).disabled(isSubmitting)
+    }
+
+    @MainActor
+    private func changeToMethod(_ method: String) async {
+        isSubmitting = true
+        defer { isSubmitting = false }
+        let payload = ChangePaymentMethodPayload(paymentMethod: method, clientCpfCnpj: nil, creditCard: nil, creditCardHolderInfo: nil, savedCardId: nil)
+        do {
+            let response = try await ApiService().changePaymentMethod(storeId: pixContext.storeId, orderId: pixContext.orderId, payload: payload)
+            if response.error {
+                SnackbarCenter.shared.show(title: response.message ?? "Não foi possível trocar o pagamento.", style: .error, icon: "xmark.octagon.fill", duration: 3.5)
+                return
+            }
+            guard let result = response.result else { return }
+            if method == "CASH" {
+                SnackbarCenter.shared.show(title: "Pagamento alterado. Pague ao receber.", style: .success, icon: "checkmark.circle.fill", duration: 3.0)
+                onConfirmed(); return
+            }
+            let pix = result.payment?.pix ?? result.paymentPayload
+            if let copyPaste = pix?.copyPaste, copyPaste.isEmpty == false {
+                let newCtx = PixPaymentContext(id: UUID().uuidString, orderId: pixContext.orderId, shortId: pixContext.shortId, storeId: pixContext.storeId, copyPaste: copyPaste, qrCodeImageBase64: pix?.qrCodeImage, expirationDate: pix?.expirationDate, total: pixContext.total, profileName: pixContext.profileName, profileEmail: pixContext.profileEmail, profilePhone: pixContext.profilePhone, addressZip: pixContext.addressZip, addressNumber: pixContext.addressNumber, deliveryType: pixContext.deliveryType, itemsJSON: pixContext.itemsJSON)
+                SnackbarCenter.shared.show(title: "Novo QR Code gerado.", style: .success, icon: "qrcode", duration: 2.5)
+                onChanged(newCtx)
+            }
+        } catch let error as NetworkError {
+            let msg: String
+            if case .httpError(_, let m) = error, let m, m.isEmpty == false { msg = m } else { msg = error.errorDescription ?? "Erro ao trocar pagamento." }
+            SnackbarCenter.shared.show(title: msg, style: .error, icon: "xmark.octagon.fill", duration: 4.0)
+        } catch {
+            SnackbarCenter.shared.show(title: "Erro ao trocar pagamento.", style: .error, icon: "xmark.octagon.fill", duration: 3.0)
+        }
+    }
+}
+
+// MARK: - ChangePaymentCardSheet
+
+struct ChangePaymentCardSheet: View {
+    let pixContext: PixPaymentContext
+    let cardContext: CardPaymentContext
+    let savedCards: [SavedCard]
+    @Binding var appState: AppState
+    let onConfirmed: (String, String?) -> Void
+
+    @Environment(\.dismiss) var dismiss
+    @State var selectedCardId: String?
+    @State var showNewCardForm = false
+    @State var isSubmitting = false
+
+    init(pixContext: PixPaymentContext, cardContext: CardPaymentContext, savedCards: [SavedCard], appState: Binding<AppState>, onConfirmed: @escaping (String, String?) -> Void) {
+        self.pixContext = pixContext; self.cardContext = cardContext; self.savedCards = savedCards
+        self._appState = appState; self.onConfirmed = onConfirmed
+        _selectedCardId = State(initialValue: savedCards.first(where: { $0.isDefault })?.id ?? savedCards.first?.id)
+    }
+
+    var body: some View {
+        VStack(spacing: 0) {
+            HStack {
+                Text("Cartão de Crédito").font(AppTypography.heading2).foregroundStyle(AppColors.textPrimary)
+                Spacer()
+                Button { dismiss() } label: {
+                    Image(systemName: "xmark").font(.system(size: 12, weight: .bold)).foregroundStyle(AppColors.textMuted)
+                        .frame(width: 30, height: 30).background(AppColors.surface).clipShape(Circle())
+                }.buttonStyle(.plain)
+            }
+            .padding(.horizontal, 20).padding(.top, 20).padding(.bottom, 16)
+
+            ScrollView(showsIndicators: false) {
+                VStack(spacing: 16) {
+                    if savedCards.isEmpty == false {
+                        VStack(spacing: 0) {
+                            ForEach(savedCards) { card in
+                                Button { selectedCardId = card.id } label: {
+                                    HStack(spacing: 12) {
+                                        Image(systemName: "creditcard.fill").font(.system(size: 18)).foregroundStyle(AppColors.textPrimary)
+                                            .frame(width: 44, height: 44).background(AppColors.backgroundLight)
+                                            .clipShape(RoundedRectangle(cornerRadius: 10, style: .continuous))
+                                        VStack(alignment: .leading, spacing: 3) {
+                                            Text(card.displayLabel).font(AppTypography.heading3).foregroundStyle(AppColors.textPrimary)
+                                            Text("Vence \(card.expiryLabel)").font(.caption).foregroundStyle(AppColors.textMuted)
+                                        }
+                                        Spacer()
+                                        Circle().stroke(selectedCardId == card.id ? AppColors.tertiary : AppColors.textMuted.opacity(0.45), lineWidth: 2)
+                                            .frame(width: 22, height: 22).background(Circle().fill(selectedCardId == card.id ? AppColors.tertiary : Color.clear))
+                                    }.padding(14)
+                                }.buttonStyle(.plain)
+                                if card.id != savedCards.last?.id { Divider().padding(.horizontal, 14) }
+                            }
+                        }
+                        .background(AppColors.surface)
+                        .clipShape(RoundedRectangle(cornerRadius: AppLayout.radiusLG, style: .continuous))
+
+                        if let selectedCardId {
+                            PrimaryButton(title: isSubmitting ? "Processando..." : "Pagar com este Cartão") {
+                                guard isSubmitting == false else { return }
+                                Task { await changeToSavedCard(cardId: selectedCardId) }
+                            }.disabled(isSubmitting)
+                        }
+                        Text("ou").font(AppTypography.caption).foregroundStyle(AppColors.textMuted).frame(maxWidth: .infinity, alignment: .center)
+                    }
+                    Button { showNewCardForm = true } label: {
+                        HStack(spacing: 10) {
+                            Image(systemName: "plus.circle.fill").font(.system(size: 18)).foregroundStyle(AppColors.primary)
+                            Text("Novo cartão").font(AppTypography.heading3).foregroundStyle(AppColors.primary)
+                            Spacer()
+                        }
+                        .padding(14).background(AppColors.surface)
+                        .clipShape(RoundedRectangle(cornerRadius: AppLayout.radiusLG, style: .continuous))
+                    }.buttonStyle(.plain)
+                }
+                .padding(.horizontal, 20).padding(.bottom, 32)
+            }
+        }
+        .background(AppColors.backgroundLight)
+        .sheet(isPresented: $showNewCardForm) {
+            ChangePaymentNewCardView(pixContext: pixContext, appState: $appState) { orderId, shortId in
+                showNewCardForm = false; onConfirmed(orderId, shortId)
+            }
+        }
+    }
+
+    @MainActor
+    private func changeToSavedCard(cardId: String) async {
+        isSubmitting = true; defer { isSubmitting = false }
+        let payload = ChangePaymentMethodPayload(paymentMethod: "CREDIT_CARD", clientCpfCnpj: nil, creditCard: nil, creditCardHolderInfo: nil, savedCardId: cardId)
+        do {
+            let response = try await ApiService().changePaymentMethod(storeId: pixContext.storeId, orderId: pixContext.orderId, payload: payload)
+            if response.error { SnackbarCenter.shared.show(title: response.message ?? "Pagamento recusado.", style: .error, icon: "xmark.octagon.fill", duration: 3.5); return }
+            onConfirmed(pixContext.orderId, pixContext.shortId)
+        } catch let error as NetworkError {
+            let msg: String
+            if case .httpError(_, let m) = error, let m, m.isEmpty == false { msg = m } else { msg = "Pagamento recusado." }
+            SnackbarCenter.shared.show(title: msg, style: .error, icon: "xmark.octagon.fill", duration: 4.0)
+        } catch { SnackbarCenter.shared.show(title: "Erro ao processar.", style: .error, icon: "xmark.octagon.fill", duration: 3.0) }
+    }
+}
+
+// MARK: - ChangePaymentNewCardView
+
+struct ChangePaymentNewCardView: View {
+    let pixContext: PixPaymentContext
+    @Binding var appState: AppState
+    let onConfirmed: (String, String?) -> Void
+
+    @Environment(\.dismiss) var dismiss
+    @State var holderName: String
+    @State var cardNumber = ""
+    @State var expiry = ""
+    @State var cvv = ""
+    @State var cpf: String
+    @State var saveCard = false
+    @State var nickname = ""
+    @State var isSubmitting = false
+
+    init(pixContext: PixPaymentContext, appState: Binding<AppState>, onConfirmed: @escaping (String, String?) -> Void) {
+        self.pixContext = pixContext; self._appState = appState; self.onConfirmed = onConfirmed
+        _holderName = State(initialValue: appState.wrappedValue.profile.name)
+        _cpf = State(initialValue: appState.wrappedValue.profile.cpf)
+    }
+
+    var canSubmit: Bool {
+        holderName.trimmingCharacters(in: .whitespaces).isEmpty == false &&
+        cardNumber.filter(\.isNumber).count >= 13 &&
+        expiry.filter(\.isNumber).count == 6 &&
+        cvv.filter(\.isNumber).count >= 3 &&
+        cpf.filter(\.isNumber).count == 11
+    }
+
+    var body: some View {
+        VStack(spacing: 0) {
+            HStack {
+                Text("Novo Cartão").font(AppTypography.heading2).foregroundStyle(AppColors.textPrimary)
+                Spacer()
+                Button { dismiss() } label: {
+                    Image(systemName: "xmark").font(.system(size: 12, weight: .bold)).foregroundStyle(AppColors.textMuted)
+                        .frame(width: 30, height: 30).background(AppColors.surface).clipShape(Circle())
+                }.buttonStyle(.plain)
+            }
+            .padding(.horizontal, 20).padding(.top, 20).padding(.bottom, 16)
+
+            ScrollView(showsIndicators: false) {
+                VStack(spacing: 16) {
+                    VStack(spacing: 10) {
+                        cardField("Número do Cartão", placeholder: "0000 0000 0000 0000", text: $cardNumber).keyboardType(.numberPad)
+                            .onChange(of: cardNumber) { _, v in
+                                let d = String(v.filter(\.isNumber).prefix(16))
+                                let m = stride(from: 0, to: d.count, by: 4).map { i -> String in let s = d.index(d.startIndex, offsetBy: i); let e = d.index(s, offsetBy: min(4, d.count - i)); return String(d[s..<e]) }.joined(separator: " ")
+                                if m != v { cardNumber = m }
+                            }
+                        cardField("Nome no Cartão", placeholder: "Como impresso no cartão", text: $holderName)
+                        HStack(spacing: 10) {
+                            cardField("Validade", placeholder: "MM/AAAA", text: $expiry).keyboardType(.numberPad)
+                                .onChange(of: expiry) { _, v in let d = String(v.filter(\.isNumber).prefix(6)); let m = d.count <= 2 ? d : "\(d.prefix(2))/\(d.dropFirst(2))"; if m != v { expiry = m } }
+                            cardField("CVV", placeholder: "•••", text: $cvv).keyboardType(.numberPad)
+                                .onChange(of: cvv) { _, v in let d = String(v.filter(\.isNumber).prefix(4)); if d != v { cvv = d } }
+                        }
+                        cardField("CPF do Titular", placeholder: "000.000.000-00", text: $cpf).keyboardType(.numberPad)
+                            .onChange(of: cpf) { _, v in
+                                let d = String(v.filter(\.isNumber).prefix(11))
+                                let m: String
+                                if d.count <= 3 { m = d } else if d.count <= 6 { m = "\(d.prefix(3)).\(d.dropFirst(3))" }
+                                else if d.count <= 9 { m = "\(d.prefix(3)).\(d.dropFirst(3).prefix(3)).\(d.dropFirst(6))" }
+                                else { m = "\(d.prefix(3)).\(d.dropFirst(3).prefix(3)).\(d.dropFirst(6).prefix(3))-\(d.dropFirst(9))" }
+                                if m != v { cpf = m }
+                            }
+                    }
+                    .padding(14).background(AppColors.surface)
+                    .clipShape(RoundedRectangle(cornerRadius: AppLayout.radiusLG, style: .continuous))
+
+                    PrimaryButton(title: isSubmitting ? "Processando..." : "Confirmar e Pagar") {
+                        guard canSubmit, isSubmitting == false else { return }
+                        Task { await submit() }
+                    }.disabled(canSubmit == false || isSubmitting)
+                }
+                .padding(20)
+            }
+        }
+        .background(AppColors.backgroundLight)
+    }
+
+    @MainActor
+    private func submit() async {
+        isSubmitting = true; defer { isSubmitting = false }
+        let cleanCpf = cpf.filter(\.isNumber)
+        let cleanNumber = cardNumber.filter(\.isNumber)
+        let expiryDigits = expiry.filter(\.isNumber)
+        let expiryMonth = String(expiryDigits.prefix(2))
+        let yearPart = String(expiryDigits.dropFirst(2))
+        let expiryYear = yearPart.count == 2 ? "20\(yearPart)" : yearPart
+        let rawPhone = pixContext.profilePhone.filter(\.isNumber)
+        let phone = rawPhone.hasPrefix("55") ? rawPhone : "55\(rawPhone)"
+
+        let holderInfo = SaveCardHolderInfoPayload(name: pixContext.profileName.isEmpty ? holderName : pixContext.profileName, email: pixContext.profileEmail, cpfCnpj: cleanCpf, postalCode: (pixContext.addressZip ?? "").filter(\.isNumber), addressNumber: pixContext.addressNumber ?? "", phone: phone)
+        let card = CreditCardOrderPayload(holderName: holderName, number: cleanNumber, expiryMonth: expiryMonth, expiryYear: expiryYear, ccv: cvv)
+        let payload = ChangePaymentMethodPayload(paymentMethod: "CREDIT_CARD", clientCpfCnpj: cleanCpf, creditCard: card, creditCardHolderInfo: holderInfo, savedCardId: nil)
+
+        if cleanCpf.count == 11 {
+            appState.profile.cpf = cleanCpf
+            Task<Void, Never> { do { _ = try await ApiService().updateProfileCpf(cpf: cleanCpf) } catch {} }
+        }
+        if saveCard {
+            let sp = SaveCardPayload(creditCard: SaveCardCreditCardPayload(holderName: holderName, number: cleanNumber, expiryMonth: expiryMonth, expiryYear: expiryYear, ccv: cvv), creditCardHolderInfo: holderInfo, nickname: nickname.trimmingCharacters(in: .whitespaces).isEmpty ? nil : nickname, isDefault: false)
+            Task<Void, Never> { do { _ = try await ApiService().saveCard(payload: sp) } catch {} }
+        }
+
+        do {
+            let response = try await ApiService().changePaymentMethod(storeId: pixContext.storeId, orderId: pixContext.orderId, payload: payload)
+            if response.error { SnackbarCenter.shared.show(title: response.message ?? "Pagamento recusado.", style: .error, icon: "xmark.octagon.fill", duration: 4.0); return }
+            onConfirmed(pixContext.orderId, pixContext.shortId)
+        } catch let error as NetworkError {
+            let msg: String
+            if case .httpError(_, let m) = error, let m, m.isEmpty == false { msg = m } else { msg = error.errorDescription ?? "Erro ao processar." }
+            SnackbarCenter.shared.show(title: msg, style: .error, icon: "xmark.octagon.fill", duration: 5.0)
+        } catch { SnackbarCenter.shared.show(title: "Erro ao processar pagamento.", style: .error, icon: "xmark.octagon.fill", duration: 3.0) }
+    }
+
+    private func cardField(_ label: String, placeholder: String, text: Binding<String>) -> some View {
+        VStack(alignment: .leading, spacing: 6) {
+            Text(label).font(AppTypography.caption).foregroundStyle(AppColors.textMuted)
+            TextField(placeholder, text: text).appNoAutoCap()
+                .padding(.horizontal, 12).frame(height: 46).background(AppColors.backgroundLight)
+                .clipShape(RoundedRectangle(cornerRadius: 10, style: .continuous))
+        }
+    }
+}

pedi-foods/Sources/PediFoods/Views/Main/OrdersView.swift

@@ -1,6 +1,7 @@
 import SwiftUI
 
 struct OrdersView: View {
+    @Binding var appState: AppState
     @Environment(\.dismiss) var dismiss
     @State var isLoading = false
     @State var errorMessage: String? = nil
@@ -58,7 +59,8 @@ struct OrdersView: View {
                 initialShortId: context.shortId,
                 fallbackPaymentMethod: context.paymentMethod,
                 fallbackTotal: context.total,
-                routeIntent: context.intent
+                routeIntent: context.intent,
+                appState: $appState
             )
         }
     }
@@ -629,6 +631,7 @@ struct OrderEntryDestinationView: View {
     let fallbackPaymentMethod: String?
     let fallbackTotal: Double?
     let routeIntent: OrderRouteIntent
+    @Binding var appState: AppState
 
     @State var isResolvingRoute = true
     @State var didResolve = false
@@ -650,6 +653,7 @@ struct OrderEntryDestinationView: View {
             } else if let pixContext {
                 PaymentPixView(
                     context: pixContext,
+                    appState: $appState,
                     onPaymentConfirmed: {
                         orderTrackingContext = OrderTrackingContext(orderId: pixContext.orderId, shortId: pixContext.shortId)
                     },
@@ -701,15 +705,25 @@ struct OrderEntryDestinationView: View {
                 let expirationDate = (pixFromPayment?.expirationDate?.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty == false)
                     ? pixFromPayment?.expirationDate
                     : pixFromPayload?.expirationDate
+                let storeId = order.storeId ?? ""
                 pixContext = PixPaymentContext(
                     id: order.id,
                     orderId: order.id,
                     shortId: order.shortId ?? initialShortId,
+                    storeId: storeId,
                     copyPaste: copyPaste?.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty == false
                         ? (copyPaste ?? "")
                         : "Código PIX indisponível no momento. Aguarde e tente novamente.",
                     qrCodeImageBase64: qrCodeImage,
-                    expirationDate: expirationDate
+                    expirationDate: expirationDate,
+                    total: order.total ?? 0,
+                    profileName: "",
+                    profileEmail: "",
+                    profilePhone: "",
+                    addressZip: nil,
+                    addressNumber: nil,
+                    deliveryType: order.deliveryType ?? "DELIVERY",
+                    itemsJSON: "[]"
                 )
                 return
             }

pedi-foods/Sources/PediFoods/Views/Main/ProfileView.swift

@@ -28,7 +28,7 @@ struct ProfileView: View {
 
                 VStack(spacing: 14) {
                     NavigationLink {
-                        OrdersView()
+                        OrdersView(appState: $appState)
                     } label: {
                         ProfileMenuRow(icon: "list.bullet.clipboard.fill", title: "Meus Pedidos")
                     }