Full Wallet Connect onboarding with Alby.

app/src/main/AndroidManifest.xml

@@ -43,6 +43,13 @@
                 <data android:scheme="nostr" />
             </intent-filter>
 
+            <intent-filter android:label="Amethyst">
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <data android:scheme="nostrwalletconnect" />
+            </intent-filter>
+
             <meta-data
                 android:name="android.app.lib_name"
                 android:value="" />

app/src/main/java/com/vitorpamplona/amethyst/ui/MainActivity.kt

@@ -21,6 +21,8 @@ import com.vitorpamplona.amethyst.LocalPreferences
 import com.vitorpamplona.amethyst.ServiceManager
 import com.vitorpamplona.amethyst.service.nip19.Nip19
 import com.vitorpamplona.amethyst.service.relays.Client
+import com.vitorpamplona.amethyst.ui.navigation.Route
+import com.vitorpamplona.amethyst.ui.note.Nip47
 import com.vitorpamplona.amethyst.ui.screen.AccountScreen
 import com.vitorpamplona.amethyst.ui.screen.AccountStateViewModel
 import com.vitorpamplona.amethyst.ui.theme.AmethystTheme
@@ -28,6 +30,8 @@ import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
+import java.net.URLEncoder
+import java.nio.charset.StandardCharsets
 
 class MainActivity : FragmentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -40,6 +44,14 @@ class MainActivity : FragmentActivity() {
             Nip19.Type.EVENT -> "Event/${nip19.hex}"
             Nip19.Type.ADDRESS -> "Note/${nip19.hex}"
             else -> null
+        } ?: try {
+            intent?.data?.toString()?.let {
+                Nip47.parse(it)
+                val encodedUri = URLEncoder.encode(it, StandardCharsets.UTF_8.toString())
+                Route.Home.base + "?nip47=" + encodedUri
+            }
+        } catch (e: Exception) {
+            null
         }
 
         Coil.setImageLoader {

app/src/main/java/com/vitorpamplona/amethyst/ui/navigation/AppNavigation.kt

@@ -1,8 +1,12 @@
 package com.vitorpamplona.amethyst.ui.navigation
 
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavHostController
 import androidx.navigation.compose.NavHost
@@ -39,6 +43,7 @@ fun AppNavigation(
     nextPage: String? = null
 ) {
     val homePagerState = rememberPagerState()
+    var actionableNextPage by remember { mutableStateOf<String?>(nextPage) }
 
     // Avoids creating ViewModels for performance reasons (up to 1 second delays)
     val accountState by accountViewModel.accountLiveData.observeAsState()
@@ -76,8 +81,9 @@ fun AppNavigation(
         }
 
         Route.Home.let { route ->
-            composable(route.route, route.arguments, content = {
+            composable(route.route, route.arguments, content = { it ->
                 val scrollToTop = it.arguments?.getBoolean("scrollToTop") ?: false
+                val nip47 = it.arguments?.getString("nip47")
 
                 HomeScreen(
                     homeFeedViewModel = homeFeedViewModel,
@@ -85,13 +91,17 @@ fun AppNavigation(
                     accountViewModel = accountViewModel,
                     navController = navController,
                     pagerState = homePagerState,
-                    scrollToTop = scrollToTop
+                    scrollToTop = scrollToTop,
+                    nip47 = nip47
                 )
 
                 // Avoids running scroll to top when back button is pressed
                 if (scrollToTop) {
                     it.arguments?.remove("scrollToTop")
                 }
+                if (nip47 != null) {
+                    it.arguments?.remove("nip47")
+                }
             })
         }
 
@@ -178,7 +188,10 @@ fun AppNavigation(
         }
     }
 
-    if (nextPage != null) {
+    actionableNextPage?.let {
-        navController.navigate(nextPage)
+        LaunchedEffect(it) {
+            navController.navigate(it)
+        }
+        actionableNextPage = null
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/ui/navigation/Routes.kt

@@ -24,9 +24,12 @@ sealed class Route(
         get() = route.substringBefore("?")
 
     object Home : Route(
-        route = "Home?scrollToTop={scrollToTop}",
+        route = "Home?scrollToTop={scrollToTop}&nip47={nip47}",
         icon = R.drawable.ic_home,
-        arguments = listOf(navArgument("scrollToTop") { type = NavType.BoolType; defaultValue = false }),
+        arguments = listOf(
+            navArgument("scrollToTop") { type = NavType.BoolType; defaultValue = false },
+            navArgument("nip47") { type = NavType.StringType; nullable = true; defaultValue = null }
+        ),
         hasNewItems = { accountViewModel, cache -> homeHasNewItems(accountViewModel, cache) }
     )
 

app/src/main/java/com/vitorpamplona/amethyst/ui/note/UpdateZapAmountDialog.kt

@@ -49,6 +49,7 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.input.ImeAction
@@ -165,17 +166,40 @@ class UpdateZapAmountViewModel : ViewModel() {
                 walletConnectSecret.text != (account?.zapPaymentRequest?.secret ?: "")
             )
     }
+
+    fun updateNIP47(uri: String) {
+        val contact = Nip47.parse(uri)
+        if (contact != null) {
+            walletConnectPubkey =
+                TextFieldValue(contact.pubKeyHex)
+            walletConnectRelay =
+                TextFieldValue(contact.relayUri ?: "")
+            walletConnectSecret =
+                TextFieldValue(contact.secret ?: "")
+        }
+    }
 }
 
 @OptIn(ExperimentalLayoutApi::class)
 @Composable
-fun UpdateZapAmountDialog(onClose: () -> Unit, account: Account) {
+fun UpdateZapAmountDialog(onClose: () -> Unit, account: Account, nip47uri: String? = null) {
     val context = LocalContext.current
     val scope = rememberCoroutineScope()
     val postViewModel: UpdateZapAmountViewModel = viewModel()
+    val uri = LocalUriHandler.current
 
     LaunchedEffect(account) {
         postViewModel.load(account)
+        if (nip47uri != null) {
+            try {
+                postViewModel.updateNIP47(nip47uri)
+            } catch (e: IllegalArgumentException) {
+                scope.launch {
+                    Toast.makeText(context, e.message, Toast.LENGTH_SHORT)
+                        .show()
+                }
+            }
+        }
     }
 
     Dialog(
@@ -299,6 +323,18 @@ fun UpdateZapAmountDialog(onClose: () -> Unit, account: Account) {
                             stringResource(id = R.string.wallet_connect_service),
                             Modifier.weight(1f)
                         )
+
+                        IconButton(onClick = {
+                            runCatching { uri.openUri("https://nwc.getalby.com/apps/new?c=Amethyst") }
+                        }) {
+                            Icon(
+                                painter = painterResource(R.drawable.alby),
+                                null,
+                                modifier = Modifier.size(24.dp),
+                                tint = Color.Unspecified
+                            )
+                        }
+
                         IconButton(onClick = {
                             qrScanning = true
                         }) {
@@ -330,15 +366,7 @@ fun UpdateZapAmountDialog(onClose: () -> Unit, account: Account) {
                             qrScanning = false
                             if (!it.isNullOrEmpty()) {
                                 try {
-                                    val contact = Nip47.parse(it)
+                                    postViewModel.updateNIP47(it)
-                                    if (contact != null) {
-                                        postViewModel.walletConnectPubkey =
-                                            TextFieldValue(contact.pubKeyHex)
-                                        postViewModel.walletConnectRelay =
-                                            TextFieldValue(contact.relayUri ?: "")
-                                        postViewModel.walletConnectSecret =
-                                            TextFieldValue(contact.secret ?: "")
-                                    }
                                 } catch (e: IllegalArgumentException) {
                                     scope.launch {
                                         Toast.makeText(context, e.message, Toast.LENGTH_SHORT)

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/HomeScreen.kt

@@ -11,7 +11,11 @@ import androidx.compose.material.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalLifecycleOwner
 import androidx.compose.ui.res.stringResource
@@ -28,6 +32,7 @@ import com.vitorpamplona.amethyst.service.NostrHomeDataSource
 import com.vitorpamplona.amethyst.ui.dal.HomeConversationsFeedFilter
 import com.vitorpamplona.amethyst.ui.dal.HomeNewThreadFeedFilter
 import com.vitorpamplona.amethyst.ui.navigation.Route
+import com.vitorpamplona.amethyst.ui.note.UpdateZapAmountDialog
 import com.vitorpamplona.amethyst.ui.screen.FeedView
 import com.vitorpamplona.amethyst.ui.screen.NostrHomeFeedViewModel
 import com.vitorpamplona.amethyst.ui.screen.NostrHomeRepliesFeedViewModel
@@ -42,10 +47,12 @@ fun HomeScreen(
     accountViewModel: AccountViewModel,
     navController: NavController,
     pagerState: PagerState,
-    scrollToTop: Boolean = false
+    scrollToTop: Boolean = false,
+    nip47: String? = null
 ) {
     val coroutineScope = rememberCoroutineScope()
     val account = accountViewModel.accountLiveData.value?.account ?: return
+    var wantsToAddNip47 by remember { mutableStateOf<String?>(nip47) }
 
     LaunchedEffect(accountViewModel) {
         HomeNewThreadFeedFilter.account = account
@@ -55,6 +62,10 @@ fun HomeScreen(
         repliesFeedViewModel.invalidateData()
     }
 
+    if (wantsToAddNip47 != null) {
+        UpdateZapAmountDialog({ wantsToAddNip47 = null }, account = account, wantsToAddNip47)
+    }
+
     val lifeCycleOwner = LocalLifecycleOwner.current
     DisposableEffect(accountViewModel) {
         val observer = LifecycleEventObserver { _, event ->

app/src/main/res/drawable/alby.xml

@@ -1,39 +1,58 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="250dp"
+    android:width="489dp"
-    android:height="250dp"
+    android:height="489dp"
-    android:viewportWidth="250"
+    android:viewportWidth="489"
-    android:viewportHeight="250">
+    android:viewportHeight="489">
   <path
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-      android:fillColor="#000000"/>
+      android:strokeWidth="19.962"
+      android:fillColor="#ffffff"
+      android:strokeColor="#ffffff"/>
   <path
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