BugFixes for NPE

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

@@ -284,9 +284,7 @@ fun NewPostView(onClose: () -> Unit, baseReplyTo: Note? = null, quote: Note? = n
                                 Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.padding(vertical = 5.dp)) {
                                     ZapRaiserRequest(
                                         stringResource(id = R.string.zapraiser),
-                                        onSuccess = {
+                                        postViewModel
-                                            postViewModel.zapRaiserAmount = it
-                                        }
                                     )
                                 }
                             }

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

@@ -77,7 +77,7 @@ open class NewPostViewModel() : ViewModel() {
     // ZapRaiser
     var canAddZapRaiser by mutableStateOf(false)
     var wantsZapraiser by mutableStateOf(false)
-    var zapRaiserAmount by mutableStateOf(0L)
+    var zapRaiserAmount by mutableStateOf<Long?>(null)
 
     open fun load(account: Account, replyingTo: Note?, quote: Note?) {
         originalNote = replyingTo
@@ -117,6 +117,7 @@ open class NewPostViewModel() : ViewModel() {
         wantsForwardZapTo = false
         wantsToMarkAsSensitive = false
         wantsZapraiser = false
+        zapRaiserAmount = null
         forwardZapTo = null
         forwardZapToEditting = TextFieldValue("")
 
@@ -137,12 +138,14 @@ open class NewPostViewModel() : ViewModel() {
             null
         }
 
+        val localZapRaiserAmount = if (wantsZapraiser) zapRaiserAmount else null
+
         if (wantsPoll) {
-            account?.sendPoll(tagger.message, tagger.replyTos, tagger.mentions, pollOptions, valueMaximum, valueMinimum, consensusThreshold, closedAt, zapReceiver, wantsToMarkAsSensitive, zapRaiserAmount)
+            account?.sendPoll(tagger.message, tagger.replyTos, tagger.mentions, pollOptions, valueMaximum, valueMinimum, consensusThreshold, closedAt, zapReceiver, wantsToMarkAsSensitive, localZapRaiserAmount)
         } else if (originalNote?.channelHex() != null) {
-            account?.sendChannelMessage(tagger.message, tagger.channelHex!!, tagger.replyTos, tagger.mentions, zapReceiver, wantsToMarkAsSensitive, zapRaiserAmount)
+            account?.sendChannelMessage(tagger.message, tagger.channelHex!!, tagger.replyTos, tagger.mentions, zapReceiver, wantsToMarkAsSensitive, localZapRaiserAmount)
         } else if (originalNote?.event is PrivateDmEvent) {
-            account?.sendPrivateMessage(tagger.message, originalNote!!.author!!, originalNote!!, tagger.mentions, zapReceiver, wantsToMarkAsSensitive, zapRaiserAmount)
+            account?.sendPrivateMessage(tagger.message, originalNote!!.author!!, originalNote!!, tagger.mentions, zapReceiver, wantsToMarkAsSensitive, localZapRaiserAmount)
         } else {
             // adds markers
             val rootId =
@@ -158,7 +161,7 @@ open class NewPostViewModel() : ViewModel() {
                 tags = null,
                 zapReceiver = zapReceiver,
                 wantsToMarkAsSensitive = wantsToMarkAsSensitive,
-                zapRaiserAmount = zapRaiserAmount,
+                zapRaiserAmount = localZapRaiserAmount,
                 replyingTo = replyId,
                 root = rootId,
                 directMentions = tagger.directMentions
@@ -237,6 +240,7 @@ open class NewPostViewModel() : ViewModel() {
 
         wantsInvoice = false
         wantsZapraiser = false
+        zapRaiserAmount = null
 
         wantsForwardZapTo = false
         wantsToMarkAsSensitive = false
@@ -342,8 +346,7 @@ open class NewPostViewModel() : ViewModel() {
     }
 
     fun canPost(): Boolean {
-        return message.text.isNotBlank() && !isUploadingImage && !wantsInvoice
+        return message.text.isNotBlank() && !isUploadingImage && !wantsInvoice && (!wantsZapraiser || zapRaiserAmount != null) && (!wantsPoll || pollOptions.values.all { it.isNotEmpty() }) && contentToAddUrl == null
-        (!wantsPoll || pollOptions.values.all { it.isNotEmpty() }) && contentToAddUrl == null
     }
 
     fun includePollHashtagInMessage(include: Boolean, hashtag: String) {

app/src/main/java/com/vitorpamplona/amethyst/ui/components/ZapRaiserRequest.kt

@@ -26,12 +26,13 @@ import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.ui.actions.NewPostViewModel
 import com.vitorpamplona.amethyst.ui.theme.placeholderText
 
 @Composable
 fun ZapRaiserRequest(
     titleText: String? = null,
-    onSuccess: (Long) -> Unit
+    newPostViewModel: NewPostViewModel
 ) {
     Column(
         modifier = Modifier
@@ -70,20 +71,21 @@ fun ZapRaiserRequest(
                 modifier = Modifier.padding(vertical = 10.dp)
             )
 
-            var amount by remember { mutableStateOf(10000L) }
-
             OutlinedTextField(
                 label = { Text(text = stringResource(R.string.zapraiser_target_amount_in_sats)) },
                 modifier = Modifier.fillMaxWidth(),
-                value = amount.toString(),
+                value = if (newPostViewModel.zapRaiserAmount != null) {
+                    newPostViewModel.zapRaiserAmount.toString()
+                } else {
+                    ""
+                },
                 onValueChange = {
                     runCatching {
                         if (it.isEmpty()) {
-                            amount = 0
+                            newPostViewModel.zapRaiserAmount = null
                         } else {
-                            amount = it.toLong()
+                            newPostViewModel.zapRaiserAmount = it.toLongOrNull()
                         }
-                        onSuccess(amount)
                     }
                 },
                 placeholder = {

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

@@ -127,7 +127,7 @@ fun ReactionsRow(baseNote: Note, showReactionDetail: Boolean, accountViewModel:
         }
     }
 
-    if (zapraiserAmount != null) {
+    if (zapraiserAmount != null && zapraiserAmount > 0) {
         Spacer(modifier = Modifier.height(4.dp))
         Row(
             verticalAlignment = CenterVertically,