feat: add contacts 1

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

@@ -11,8 +11,11 @@ import kotlinx.coroutines.flow.SharedFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.launch
 import com.bitcointxoko.gudariwallet.data.BalancePrefsStore
+import com.bitcointxoko.gudariwallet.data.ContactRepository
 import com.bitcointxoko.gudariwallet.data.LightningAddressStore
 import com.bitcointxoko.gudariwallet.data.NwcCacheRepository
+import com.bitcointxoko.gudariwallet.data.db.ContactEntity
+import com.bitcointxoko.gudariwallet.data.db.PaymentAddressType
 import com.bitcointxoko.gudariwallet.ui.balance.BalanceViewModel
 import com.bitcointxoko.gudariwallet.ui.clipboard.ClipboardViewModel
 import com.bitcointxoko.gudariwallet.ui.fiat.FiatViewModel
@@ -21,6 +24,7 @@ import com.bitcointxoko.gudariwallet.ui.send.SendEvent
 import com.bitcointxoko.gudariwallet.ui.send.SendStrings
 import com.bitcointxoko.gudariwallet.ui.send.SendViewModel
 import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.stateIn
 
 private const val TAG = "WalletViewModel"
@@ -30,6 +34,7 @@ class WalletViewModel(
     val         aliasRepo : NodeAliasRepository,
     val         paymentCache: PaymentCacheRepository,
     val         nwcCache     : NwcCacheRepository,
+    val         contactRepo  : ContactRepository,
     private val balancePrefs: BalancePrefsStore,
     private val lnAddressStore     : LightningAddressStore,
     val         balanceVm    : BalanceViewModel,
@@ -126,6 +131,32 @@ class WalletViewModel(
     fun checkClipboard(text: String?)  = clipboardVm.checkClipboard(text)
     fun dismissClipboardOffer()        = clipboardVm.dismissClipboardOffer()
 
+    val contactForCurrentLnurl: StateFlow<ContactEntity?> =
+        sendVm.sendState
+            .map { state ->
+                val lnurl = (state as? SendState.LnurlReady)?.lnurl
+                    ?: return@map null
+                contactRepo.findByLnAddress(lnurl)
+                    ?: contactRepo.findByLnurl(lnurl)
+            }
+            .stateIn(
+                scope = viewModelScope,
+                started = SharingStarted.WhileSubscribed(5_000),
+                initialValue = null
+            )
+
+    fun saveContactFromSend(name: String, addressType: PaymentAddressType?, address: String?) {
+        viewModelScope.launch {
+            val lnAddress = address?.takeIf { addressType == PaymentAddressType.LIGHTNING_ADDRESS }
+            val lnUrl     = address?.takeIf { addressType == PaymentAddressType.LNURL }
+            contactRepo.createContact(
+                localAlias = name,
+                lnAddress  = lnAddress,
+                lnUrl      = lnUrl
+            )
+        }
+    }
+
     init {
         observePaymentEvents()
         fetchLightningAddress()