SeamUnlockEvent

sealed class SeamUnlockEvent {
    class ScanningStarted : SeamUnlockEvent()
    class AccessGranted : SeamUnlockEvent()
    class Timeout : SeamUnlockEvent()
    class ReaderError(val message: String) : SeamUnlockEvent()
}

class ReaderError(val message: String) : SeamUnlockEvent()

val seamSDK = SeamSDK.getInstance()

// Subscribe before calling unlock
lifecycleScope.launch {
    seamSDK.unlockStatus.collect { event ->
        when (event) {
            is SeamUnlockEvent.ScanningStarted -> {
                showScanningSpinner()
            }
            is SeamUnlockEvent.AccessGranted -> {
                hideScanningSpinner()
                showSuccessBanner()
            }
            is SeamUnlockEvent.Timeout -> {
                hideScanningSpinner()
                showTimeoutError()
            }
            is SeamUnlockEvent.ReaderError -> {
                hideScanningSpinner()
                // event.message contains diagnostic details
                showReaderError()
            }
        }
    }
}

// Then perform the unlock
try {
    seamSDK.unlock(
        credentialId = credential.id!!,
        unlockProximity = UnlockProximity.TOUCH
    )
} catch (seamError: SeamError) {
    // Handle synchronous errors thrown before scanning begins
    handleUnlockError(seamError)
}