Mail composer in SwiftUI

MailView.swift

// https://stackoverflow.com/questions/56784722/swiftui-send-email
public struct MailView: UIViewControllerRepresentable {

    @Environment(\.presentationMode) var presentation
    @Binding var result: Result<MFMailComposeResult, Error>?
    public var configure: ((MFMailComposeViewController) -> Void)?

    public class Coordinator: NSObject, MFMailComposeViewControllerDelegate {

        @Binding var presentation: PresentationMode
        @Binding var result: Result<MFMailComposeResult, Error>?

        init(presentation: Binding<PresentationMode>,
             result: Binding<Result<MFMailComposeResult, Error>?>) {
            _presentation = presentation
            _result = result
        }

        public func mailComposeController(_ controller: MFMailComposeViewController,
                                   didFinishWith result: MFMailComposeResult,
                                   error: Error?) {
            defer {
                $presentation.wrappedValue.dismiss()
            }
            guard error == nil else {
                self.result = .failure(error!)
                return
            }
            self.result = .success(result)
        }
    }

    public func makeCoordinator() -> Coordinator {
        return Coordinator(presentation: presentation,
                           result: $result)
    }

    public func makeUIViewController(context: UIViewControllerRepresentableContext<MailView>) -> MFMailComposeViewController {
        let vc = MFMailComposeViewController()
        vc.mailComposeDelegate = context.coordinator
        configure?(vc)
        return vc
    }

    public func updateUIViewController(
        _ uiViewController: MFMailComposeViewController,
        context: UIViewControllerRepresentableContext<MailView>) {

    }
}

Usage;

    @State private var result: Result<MFMailComposeResult, Error>? = nil
    @State private var isShowingMailView = false
    
    var body: some View {
        Form {
            Button(action: {
                if MFMailComposeViewController.canSendMail() {
                    self.isShowingMailView.toggle()
                } else {
                    print("Can't send emails from this device")
                }
                if result != nil {
                    print("Result: \(String(describing: result))")
                }
            }) {
                HStack {
                    Image(systemName: "envelope")
                    Text("Contact Us")
                }
            }
            // .disabled(!MFMailComposeViewController.canSendMail())
        }
        .sheet(isPresented: $isShowingMailView) {
            MailView(result: $result) { composer in
                composer.setSubject("Secret")
                composer.setToRecipients(["eneskaraosman53@gmail.com"])
            }
        }
    }