Adds notification for Zaps that don't have a Note attached to them.

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

@@ -0,0 +1,109 @@
+package com.vitorpamplona.amethyst.ui.note
+
+import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.material.Icon
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Bolt
+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.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.compositeOver
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.navigation.NavController
+import com.google.accompanist.flowlayout.FlowRow
+import com.vitorpamplona.amethyst.NotificationCache
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.ui.screen.ZapUserSetCard
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import com.vitorpamplona.amethyst.ui.theme.BitcoinOrange
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+
+@OptIn(ExperimentalFoundationApi::class)
+@Composable
+fun ZapUserSetCompose(zapSetCard: ZapUserSetCard, isInnerNote: Boolean = false, routeForLastRead: String, accountViewModel: AccountViewModel, navController: NavController) {
+    val accountState by accountViewModel.accountLiveData.observeAsState()
+    val account = accountState?.account ?: return
+
+    var isNew by remember { mutableStateOf<Boolean>(false) }
+
+    LaunchedEffect(key1 = zapSetCard) {
+        withContext(Dispatchers.IO) {
+            isNew = zapSetCard.createdAt > NotificationCache.load(routeForLastRead)
+
+            NotificationCache.markAsRead(routeForLastRead, zapSetCard.createdAt)
+        }
+    }
+
+    var backgroundColor = if (isNew) {
+        MaterialTheme.colors.primary.copy(0.12f).compositeOver(MaterialTheme.colors.background)
+    } else {
+        MaterialTheme.colors.background
+    }
+
+    Column(
+        modifier = Modifier
+            .background(backgroundColor)
+            .clickable {
+                navController.navigate("User/${zapSetCard.user.pubkeyHex}")
+            }
+    ) {
+        Row(
+            modifier = Modifier
+                .padding(
+                    start = if (!isInnerNote) 12.dp else 0.dp,
+                    end = if (!isInnerNote) 12.dp else 0.dp,
+                    top = 10.dp
+                )
+        ) {
+            // Draws the like picture outside the boosted card.
+            if (!isInnerNote) {
+                Box(
+                    modifier = Modifier
+                        .width(55.dp)
+                        .padding(0.dp)
+                ) {
+                    Icon(
+                        imageVector = Icons.Default.Bolt,
+                        contentDescription = stringResource(id = R.string.zaps),
+                        tint = BitcoinOrange,
+                        modifier = Modifier
+                            .size(25.dp)
+                            .align(Alignment.TopEnd)
+                    )
+                }
+            }
+
+            Column(modifier = Modifier.padding(start = if (!isInnerNote) 10.dp else 0.dp)) {
+                FlowRow() {
+                    zapSetCard.zapEvents.forEach {
+                        NoteAuthorPicture(
+                            note = it.key,
+                            navController = navController,
+                            userAccount = account.userProfile(),
+                            size = 35.dp
+                        )
+                    }
+                }
+
+                UserCompose(baseUser = zapSetCard.user, accountViewModel = accountViewModel, navController = navController)
+            }
+        }
+    }
+}

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

@@ -2,6 +2,7 @@ package com.vitorpamplona.amethyst.ui.screen
 
 import androidx.compose.runtime.MutableState
 import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.model.User
 
 abstract class Card() {
     abstract fun createdAt(): Long
@@ -40,6 +41,14 @@ class ZapSetCard(val note: Note, val zapEvents: Map<Note, Note>) : Card() {
     override fun id() = note.idHex + "Z" + createdAt
 }
 
+class ZapUserSetCard(val user: User, val zapEvents: Map<Note, Note>) : Card() {
+    val createdAt = zapEvents.maxOf { it.value.createdAt() ?: 0 }
+    override fun createdAt(): Long {
+        return createdAt
+    }
+    override fun id() = user.pubkeyHex + "U" + createdAt
+}
+
 class MultiSetCard(val note: Note, val boostEvents: List<Note>, val likeEvents: List<Note>, val zapEvents: Map<Note, Note>) : Card() {
     val createdAt = maxOf(
         zapEvents.maxOfOrNull { it.value.createdAt() ?: 0 } ?: 0,

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

@@ -30,6 +30,7 @@ import com.vitorpamplona.amethyst.ui.note.MessageSetCompose
 import com.vitorpamplona.amethyst.ui.note.MultiSetCompose
 import com.vitorpamplona.amethyst.ui.note.NoteCompose
 import com.vitorpamplona.amethyst.ui.note.ZapSetCompose
+import com.vitorpamplona.amethyst.ui.note.ZapUserSetCompose
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 
 @OptIn(ExperimentalMaterialApi::class)
@@ -128,6 +129,13 @@ private fun FeedLoaded(
                     navController = navController,
                     routeForLastRead = routeForLastRead
                 )
+                is ZapUserSetCard -> ZapUserSetCompose(
+                    item,
+                    isInnerNote = false,
+                    accountViewModel = accountViewModel,
+                    navController = navController,
+                    routeForLastRead = routeForLastRead
+                )
                 is LikeSetCard -> LikeSetCompose(
                     item,
                     isInnerNote = false,

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

@@ -7,6 +7,7 @@ import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.LocalCacheState
 import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.model.User
 import com.vitorpamplona.amethyst.service.model.BadgeAwardEvent
 import com.vitorpamplona.amethyst.service.model.ChannelCreateEvent
 import com.vitorpamplona.amethyst.service.model.ChannelMetadataEvent
@@ -78,7 +79,7 @@ open class CardFeedViewModel(val dataSource: FeedFilter<Note>) : ViewModel() {
             }
 
         // val reactionCards = reactionsPerEvent.map { LikeSetCard(it.key, it.value) }
-
+        val zapsPerUser = mutableMapOf<User, MutableMap<Note, Note>>()
         val zapsPerEvent = mutableMapOf<Note, MutableMap<Note, Note>>()
         notes
             .filter { it.event is LnZapEvent }
@@ -89,6 +90,20 @@ open class CardFeedViewModel(val dataSource: FeedFilter<Note>) : ViewModel() {
                     if (zapRequest != null) {
                         zapsPerEvent.getOrPut(zappedPost, { mutableMapOf() }).put(zapRequest, zapEvent)
                     }
+                } else {
+                    val event = (zapEvent.event as LnZapEvent)
+                    val author = event.zappedAuthor().mapNotNull {
+                        LocalCache.checkGetOrCreateUser(
+                            it
+                        )
+                    }.firstOrNull()
+                    if (author != null) {
+                        val zapRequest = author.zaps.filter { it.value == zapEvent }.keys.firstOrNull()
+                        if (zapRequest != null) {
+                            zapsPerUser.getOrPut(author, { mutableMapOf() })
+                                .put(zapRequest, zapEvent)
+                        }
+                    }
                 }
             }
 
@@ -121,6 +136,13 @@ open class CardFeedViewModel(val dataSource: FeedFilter<Note>) : ViewModel() {
             }
         }.flatten()
 
+        val userZaps = zapsPerUser.map {
+            ZapUserSetCard(
+                it.key,
+                it.value
+            )
+        }
+
         val textNoteCards = notes.filter { it.event !is ReactionEvent && it.event !is RepostEvent && it.event !is LnZapEvent }.map {
             if (it.event is PrivateDmEvent) {
                 MessageSetCard(it)
@@ -131,7 +153,7 @@ open class CardFeedViewModel(val dataSource: FeedFilter<Note>) : ViewModel() {
             }
         }
 
-        return (multiCards + textNoteCards).sortedBy { it.createdAt() }.reversed()
+        return (multiCards + textNoteCards + userZaps).sortedBy { it.createdAt() }.reversed()
     }
 
     private fun updateFeed(notes: List<Card>) {