add signer support in the user metadata screen

app/src/main/java/com/vitorpamplona/amethyst/model/Account.kt

@@ -186,14 +186,17 @@ class Account(
         }
     }
 
-    fun sendNewUserMetadata(toString: String, identities: List<IdentityClaim>) {
-        if (!isWriteable()) return
+    fun sendNewUserMetadata(toString: String, identities: List<IdentityClaim>, signEvent: Boolean = true): MetadataEvent? {
+        if (!isWriteable() && signEvent) return null
 
-        keyPair.privKey?.let {
-            val event = MetadataEvent.create(toString, identities, keyPair.privKey!!)
-            Client.send(event)
-            LocalCache.consume(event)
+        val event = MetadataEvent.create(toString, identities, keyPair.pubKey.toHexKey(), keyPair.privKey)
+        if (!signEvent) {
+            return event
         }
+        Client.send(event)
+        LocalCache.consume(event)
+
+        return null
     }
 
     fun reactionTo(note: Note, reaction: String): List<Note> {

app/src/main/java/com/vitorpamplona/amethyst/service/model/MetadataEvent.kt

@@ -171,8 +171,7 @@ class MetadataEvent(
                 .readerFor(UserMetadata::class.java)
         }
 
-        fun create(contactMetaData: String, identities: List<IdentityClaim>, privateKey: ByteArray, createdAt: Long = TimeUtils.now()): MetadataEvent {
-            val pubKey = CryptoUtils.pubkeyCreate(privateKey).toHexKey()
+        fun create(contactMetaData: String, identities: List<IdentityClaim>, pubKey: HexKey, privateKey: ByteArray?, createdAt: Long = TimeUtils.now()): MetadataEvent {
             val tags = mutableListOf<List<String>>()
 
             identities.forEach {
@@ -180,8 +179,8 @@ class MetadataEvent(
             }
 
             val id = generateId(pubKey, createdAt, kind, tags, contactMetaData)
-            val sig = CryptoUtils.sign(id, privateKey)
-            return MetadataEvent(id.toHexKey(), pubKey, createdAt, tags, contactMetaData, sig.toHexKey())
+            val sig = if (privateKey == null) null else CryptoUtils.sign(id, privateKey)
+            return MetadataEvent(id.toHexKey(), pubKey, createdAt, tags, contactMetaData, sig?.toHexKey() ?: "")
         }
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/NewUserMetadataView.kt

@@ -17,6 +17,11 @@ import androidx.compose.material.Surface
 import androidx.compose.material.Text
 import androidx.compose.runtime.Composable
 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.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
@@ -28,6 +33,10 @@ import androidx.compose.ui.window.DialogProperties
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.amethyst.service.PackageUtils
+import com.vitorpamplona.amethyst.service.model.Event
+import com.vitorpamplona.amethyst.service.relays.Client
 import com.vitorpamplona.amethyst.ui.theme.placeholderText
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
@@ -37,6 +46,7 @@ import kotlinx.coroutines.withContext
 fun NewUserMetadataView(onClose: () -> Unit, account: Account) {
     val postViewModel: NewUserMetadataViewModel = viewModel()
     val context = LocalContext.current
+    val scope = rememberCoroutineScope()
 
     LaunchedEffect(Unit) {
         postViewModel.load(account)
@@ -61,6 +71,25 @@ fun NewUserMetadataView(onClose: () -> Unit, account: Account) {
             Column(
                 modifier = Modifier.padding(10.dp)
             ) {
+                var event by remember { mutableStateOf<Event?>(null) }
+                if (event != null) {
+                    SignerDialog(
+                        onClose = {
+                            event = null
+                        },
+                        onPost = {
+                            scope.launch(Dispatchers.IO) {
+                                Client.send(it)
+                                LocalCache.verifyAndConsume(it, null)
+                                event = null
+                                postViewModel.clear()
+                                onClose()
+                            }
+                        },
+                        event = event!!
+                    )
+                }
+
                 Row(
                     modifier = Modifier
                         .fillMaxWidth(),
@@ -74,15 +103,22 @@ fun NewUserMetadataView(onClose: () -> Unit, account: Account) {
 
                     PostButton(
                         onPost = {
-                            postViewModel.create()
-                            onClose()
+                            if (PackageUtils.isAmberInstalled(context)) {
+                                event = postViewModel.create(false)
+                                println(event)
+                            } else {
+                                postViewModel.create(true)
+                                onClose()
+                            }
                         },
                         true
                     )
                 }
 
                 Column(
-                    modifier = Modifier.padding(10.dp).verticalScroll(rememberScrollState())
+                    modifier = Modifier
+                        .padding(10.dp)
+                        .verticalScroll(rememberScrollState())
                 ) {
                     Row(
                         modifier = Modifier.fillMaxWidth(1f),

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/NewUserMetadataViewModel.kt

@@ -12,6 +12,7 @@ import com.fasterxml.jackson.databind.node.ObjectNode
 import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.service.model.GitHubIdentity
 import com.vitorpamplona.amethyst.service.model.MastodonIdentity
+import com.vitorpamplona.amethyst.service.model.MetadataEvent
 import com.vitorpamplona.amethyst.service.model.TwitterIdentity
 import com.vitorpamplona.amethyst.ui.components.MediaCompressor
 import id.zelory.compressor.Compressor.compress
@@ -73,7 +74,7 @@ class NewUserMetadataViewModel : ViewModel() {
         }
     }
 
-    fun create() {
+    fun create(signEvent: Boolean): MetadataEvent? {
         // Tries to not delete any existing attribute that we do not work with.
         val latest = account.userProfile().info?.latestMetadata
         val currentJson = if (latest != null) {
@@ -122,11 +123,16 @@ class NewUserMetadataViewModel : ViewModel() {
         val writer = StringWriter()
         ObjectMapper().writeValue(writer, currentJson)
 
-        viewModelScope.launch(Dispatchers.IO) {
-            account.sendNewUserMetadata(writer.buffer.toString(), newClaims)
+        if (signEvent) {
+            viewModelScope.launch(Dispatchers.IO) {
+                account.sendNewUserMetadata(writer.buffer.toString(), newClaims, signEvent)
+            }
+            clear()
+        } else {
+            return account.sendNewUserMetadata(writer.buffer.toString(), newClaims, signEvent)
         }
 
-        clear()
+        return null
     }
 
     fun clear() {