import TRETNFCKit

func tagReaderSample() async {
    guard NFCTagReaderSession.readingAvailable else { return }
    guard let readerSession = NFCTagReaderSession(pollingOption: [.iso14443, .iso15693, .iso18092]) else { return }
    readerSession.alertMessage = "Place the tag on a flat, non-metal surface and rest your iPhone on the tag."
    for await event in readerSession.eventStream {
        switch event {
        case .sessionBecomeActive:
            break
        case .sessionDetected(let tags):
            let tag = tags.first!
            do {
                try await readerSession.connect(to: tag)
                switch tag {
                case .feliCa(let feliCaTag):
                    readerSession.alertMessage = "FeliCa\n\(feliCaTag.currentIDm as NSData)"
                case .iso7816(let iso7816Tag):
                    readerSession.alertMessage = "ISO14443-4 type A / B tag with ISO7816\n\(iso7816Tag.identifier as NSData)"
                case .iso15693(let iso15693Tag):
                    readerSession.alertMessage = "ISO 15693\n\(iso15693Tag.identifier as NSData)"
                case .miFare(let miFareTag):
                    readerSession.alertMessage = "MiFare technology tag (MIFARE Plus, UltraLight, DESFire) base on ISO14443\n\(miFareTag.identifier as NSData)"
                @unknown default:
                    readerSession.alertMessage = "Unknown tag."
                }
                readerSession.invalidate()
            } catch {
                readerSession.invalidate(errorMessage: error.localizedDescription)
            }
        case .sessionInvalidated(_):
            break
        }
    }
}

import TRETNFCKit

struct NFCNativeTagReaderExampleView: View {
    @State private var isPresented = false
    
    var body: some View {
        List {
            Button("Read") {
                isPresented = true
            }
            .disabled(!NFCTagReaderSession.readingAvailable || isPresented)
        }
        .nfcNativeTagReader(
            isPresented: $isPresented,
            pollingOption: [.iso14443, .iso15693, .iso18092],
            detectingAlertMessage: "Place the tag on a flat, non-metal surface and rest your iPhone on the tag.",
            onDidBecomeActive: { _ in /* ... */ },
            onDidDetect: { readerSession, tags in
                do {
                    let tag = tags.first!
                    try await readerSession.connect(to: tag)
                    switch tag {
                    case .feliCa(let feliCaTag):
                        readerSession.alertMessage = "FeliCa\n\(feliCaTag.currentIDm as NSData)"
                    case .iso7816(let iso7816Tag):
                        readerSession.alertMessage = "ISO14443-4 type A / B tag with ISO7816\n\(iso7816Tag.identifier as NSData)"
                    case .iso15693(let iso15693Tag):
                        readerSession.alertMessage = "ISO 15693\n\(iso15693Tag.identifier as NSData)"
                    case .miFare(let miFareTag):
                        readerSession.alertMessage = "MiFare technology tag (MIFARE Plus, UltraLight, DESFire) base on ISO14443\n\(miFareTag.identifier as NSData)"
                    @unknown default:
                        readerSession.alertMessage = "Unknown tag."
                    }
                    readerSession.invalidate()
                } catch {
                    readerSession.invalidate(errorMessage: error.localizedDescription)
                }
            },
            onDidInvalidate: { _ in /* ... */ }
        )
    }
}