feat: add nfc step 1

app/src/main/java/com/bitcointxoko/gudariwallet/ui/WalletViewModel.kt

@@ -1,6 +1,7 @@
 package com.bitcointxoko.gudariwallet.ui
 
 import android.util.Log
+import androidx.annotation.VisibleForTesting
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.bitcointxoko.gudariwallet.api.LnurlScanResponse
@@ -16,6 +17,7 @@ import com.bitcointxoko.gudariwallet.data.LightningAddressStore
 import com.bitcointxoko.gudariwallet.ui.balance.BalanceViewModel
 import com.bitcointxoko.gudariwallet.ui.clipboard.ClipboardViewModel
 import com.bitcointxoko.gudariwallet.ui.fiat.FiatViewModel
+import com.bitcointxoko.gudariwallet.ui.nfc.NfcViewModel
 import com.bitcointxoko.gudariwallet.ui.receive.ReceiveViewModel
 import com.bitcointxoko.gudariwallet.ui.send.SendViewModel
 import kotlinx.coroutines.flow.SharingStarted
@@ -33,7 +35,8 @@ class WalletViewModel(
     val         fiatVm      : FiatViewModel,
     val         receiveVm   : ReceiveViewModel,
     val         sendVm      : SendViewModel,
-    val         clipboardVm  : ClipboardViewModel,
+    val         clipboardVm : ClipboardViewModel,
+    val         nfcVm       : NfcViewModel
 ) : ViewModel() {
     val balanceState: StateFlow<BalanceState> get() = balanceVm.balanceState
     val balanceHidden: StateFlow<Boolean>   get() = fiatVm.balanceHidden
@@ -62,9 +65,7 @@ class WalletViewModel(
     fun requestPayment(activity: FragmentActivity, subtitle: String, pay: () -> Unit) =
         sendVm.requestPayment(activity, subtitle, pay)
     fun resetSendState() = sendVm.resetSendState()
-    val clipboardOfferState: StateFlow<ClipboardOfferState> get() = clipboardVm.clipboardOfferState
-    fun checkClipboard(text: String?)  = clipboardVm.checkClipboard(text)
-    fun dismissClipboardOffer()        = clipboardVm.dismissClipboardOffer()
+
     val lightningAddress: StateFlow<String?> = lnAddressStore.lightningAddressFlow
         .stateIn(
             scope        = viewModelScope,
@@ -72,6 +73,21 @@ class WalletViewModel(
             initialValue = null
         )
 
+    val clipboardOfferState: StateFlow<ClipboardOfferState> get() = clipboardVm.clipboardOfferState
+    fun checkClipboard(text: String?)  = clipboardVm.checkClipboard(text)
+    fun dismissClipboardOffer()        = clipboardVm.dismissClipboardOffer()
+
+    val nfcOfferState: StateFlow<NfcOfferState> = nfcVm.nfcOfferState
+
+    fun onNfcTagDiscovered(tag: android.nfc.Tag) = nfcVm.onTagDiscovered(tag)
+    @VisibleForTesting
+    fun onNfcTagRead(text: String?)              = nfcVm.onNfcTagRead(text)
+    fun dismissNfcOffer()                        = nfcVm.dismissNfcOffer()
+    val nfcBroadcastState: StateFlow<NfcViewModel.NfcBroadcastState> get() = nfcVm.broadcastState
+    fun startNfcBroadcast(payload: String) = nfcVm.startBroadcast(payload)
+    fun cancelNfcBroadcast()               = nfcVm.cancelBroadcast()
+    fun dismissNfcBroadcastResult()        = nfcVm.dismissBroadcastResult()
+
     init {
         observePaymentEvents()
         fetchLightningAddress()