Custom Zap Amounts.

app/src/main/java/com/vitorpamplona/amethyst/LocalPreferences.kt

@@ -23,6 +23,7 @@ class LocalPreferences(context: Context) {
       remove("relays")
       remove("dontTranslateFrom")
       remove("translateTo")
+      remove("zapAmounts")
     }.apply()
   }
 
@@ -35,6 +36,7 @@ class LocalPreferences(context: Context) {
       account.localRelays.let { putString("relays", gson.toJson(it)) }
       account.dontTranslateFrom.let { putStringSet("dontTranslateFrom", it) }
       account.translateTo.let { putString("translateTo", it) }
+      account.zapAmountChoices.let { putString("zapAmounts", gson.toJson(it)) }
     }.apply()
   }
 
@@ -52,6 +54,11 @@ class LocalPreferences(context: Context) {
       val dontTranslateFrom = getStringSet("dontTranslateFrom", null) ?: setOf()
       val translateTo = getString("translateTo", null) ?: Locale.getDefault().language
 
+      val zapAmountChoices = gson.fromJson(
+        getString("zapAmounts", "[]"),
+        object : TypeToken<List<Long>>() {}.type
+      ) ?: listOf(500L, 1000L, 5000L)
+
       if (pubKey != null) {
         return Account(
           Persona(privKey = privKey?.toByteArray(), pubKey = pubKey.toByteArray()),
@@ -59,7 +66,8 @@ class LocalPreferences(context: Context) {
           hiddenUsers,
           localRelays,
           dontTranslateFrom,
-          translateTo
+          translateTo,
+          zapAmountChoices
         )
       } else {
         return null

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

@@ -56,7 +56,8 @@ class Account(
   var hiddenUsers: Set<String> = setOf(),
   var localRelays: Set<RelaySetupInfo> = Constants.defaultRelays.toSet(),
   var dontTranslateFrom: Set<String> = getLanguagesSpokenByUser(),
-  var translateTo: String = Locale.getDefault().language
+  var translateTo: String = Locale.getDefault().language,
+  var zapAmountChoices: List<Long> = listOf(500L, 1000L, 5000L)
 ) {
   var transientHiddenUsers: Set<String> = setOf()
 
@@ -327,6 +328,11 @@ class Account(
     invalidateData(live)
   }
 
+  fun changeZapAmounts(newAmounts: List<Long>) {
+    zapAmountChoices = newAmounts
+    invalidateData(live)
+  }
+
   fun sendChangeChannel(name: String, about: String, picture: String, channel: Channel) {
     if (!isWriteable()) return
 

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

@@ -245,6 +245,25 @@ fun PostButton(onPost: () -> Unit = {}, isActive: Boolean, modifier: Modifier =
     }
 }
 
+@Composable
+fun SaveButton(onPost: () -> Unit = {}, isActive: Boolean, modifier: Modifier = Modifier) {
+    Button(
+        modifier = modifier,
+        onClick = {
+            if (isActive) {
+                onPost()
+            }
+        },
+        shape = RoundedCornerShape(20.dp),
+        colors = ButtonDefaults
+            .buttonColors(
+                backgroundColor = if (isActive) MaterialTheme.colors.primary else Color.Gray
+            )
+    ) {
+        Text(text = "Save", color = Color.White)
+    }
+}
+
 @Composable
 fun CreateButton(onPost: () -> Unit = {}, isActive: Boolean, modifier: Modifier = Modifier) {
     Button(

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

@@ -1,24 +1,39 @@
 package com.vitorpamplona.amethyst.ui.note
 
-import android.content.Intent
-import android.net.Uri
 import android.widget.Toast
+import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.border
+import androidx.compose.foundation.combinedClickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.FlowRow
 import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.imePadding
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.Button
+import androidx.compose.material.ButtonDefaults
 import androidx.compose.material.Icon
 import androidx.compose.material.IconButton
 import androidx.compose.material.MaterialTheme
+import androidx.compose.material.OutlinedTextField
+import androidx.compose.material.Surface
 import androidx.compose.material.Text
+import androidx.compose.material.TextFieldDefaults
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Bolt
-import androidx.compose.material.icons.filled.MoreVert
 import androidx.compose.material.icons.outlined.BarChart
 import androidx.compose.material.icons.outlined.Bolt
+import androidx.compose.material.ripple.rememberRipple
 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
@@ -26,28 +41,48 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
+import androidx.compose.ui.ExperimentalComposeUiApi
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.focusRequester
+import androidx.compose.ui.focus.onFocusChanged
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.ColorFilter
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalSoftwareKeyboardController
 import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.semantics.Role
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.input.TextFieldValue
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.IntOffset
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import androidx.core.content.ContextCompat
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
+import androidx.compose.ui.window.Popup
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewmodel.compose.viewModel
 import coil.compose.AsyncImage
 import coil.request.CachePolicy
 import coil.request.ImageRequest
+import com.vitorpamplona.amethyst.LocalPreferences
 import com.vitorpamplona.amethyst.R
-import com.vitorpamplona.amethyst.lnurl.LightningAddressResolver
+import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.ui.actions.CloseButton
 import com.vitorpamplona.amethyst.ui.actions.NewPostView
+import com.vitorpamplona.amethyst.ui.actions.SaveButton
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.amethyst.ui.theme.BitcoinOrange
 import java.math.BigDecimal
 import java.math.RoundingMode
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 
+@OptIn(ExperimentalFoundationApi::class)
 @Composable
 fun ReactionsRow(baseNote: Note, accountViewModel: AccountViewModel) {
   val accountState by accountViewModel.accountLiveData.observeAsState()
@@ -77,6 +112,9 @@ fun ReactionsRow(baseNote: Note, accountViewModel: AccountViewModel) {
   if (wantsToReplyTo != null)
     NewPostView({ wantsToReplyTo = null }, wantsToReplyTo, account)
 
+  var wantsToZap by remember { mutableStateOf(false) }
+  var wantsToChangeZapAmount by remember { mutableStateOf(false) }
+
   Row(
     modifier = Modifier
       .padding(top = 8.dp)
@@ -192,26 +230,69 @@ fun ReactionsRow(baseNote: Note, accountViewModel: AccountViewModel) {
       modifier = Modifier.weight(1f)
     )
 
-    IconButton(
-      modifier = Modifier.then(Modifier.size(20.dp)),
-      onClick = {
-        if (account.isWriteable()) {
-          accountViewModel.zap(baseNote, 1000 * 1000, "", context) {
-            scope.launch {
-              Toast.makeText(context, it, Toast.LENGTH_SHORT).show()
+
+    Row(
+      modifier = Modifier
+        .then(Modifier.size(20.dp))
+        .combinedClickable(
+          role = Role.Button,
+          interactionSource = remember { MutableInteractionSource() },
+          indication = rememberRipple(bounded = false, radius = 24.dp),
+          onClick = {
+            if (account.zapAmountChoices.isEmpty()) {
+              scope.launch {
+                Toast
+                  .makeText(
+                    context,
+                    "No Zap Amount Setup. Long Press to change",
+                    Toast.LENGTH_SHORT
+                  )
+                  .show()
+              }
+            } else if (!account.isWriteable()) {
+              scope.launch {
+                Toast
+                  .makeText(
+                    context,
+                    "Login with a Private key to be able to send Zaps",
+                    Toast.LENGTH_SHORT
+                  )
+                  .show()
+              }
+            } else if (account.zapAmountChoices.size == 1) {
+              accountViewModel.zap(baseNote, account.zapAmountChoices.first() * 1000, "", context) {
+                scope.launch {
+                  Toast
+                    .makeText(context, it, Toast.LENGTH_SHORT)
+                    .show()
+                }
+              }
+            } else if (account.zapAmountChoices.size > 1) {
+              wantsToZap = true
             }
+          },
+          onLongClick = {
+            wantsToChangeZapAmount = true
           }
-        } else {
-          scope.launch {
-            Toast.makeText(
-              context,
-              "Login with a Private key to be able to send Zaps",
-              Toast.LENGTH_SHORT
-            ).show()
-          }
-        }
-      }
+        )
     ) {
+      if (wantsToZap) {
+        ZapAmountChoicePopup(
+          baseNote,
+          accountViewModel,
+          onDismiss = {
+            wantsToZap = false
+          },
+          onChangeAmount = {
+            wantsToZap = false
+            wantsToChangeZapAmount = true
+          }
+        )
+      }
+      if (wantsToChangeZapAmount) {
+        UpdateZapAmountDialog({ wantsToChangeZapAmount = false }, account = account)
+      }
+
       if (zappedNote?.isZappedBy(account.userProfile()) == true) {
         Icon(
           imageVector = Icons.Default.Bolt,
@@ -236,7 +317,6 @@ fun ReactionsRow(baseNote: Note, accountViewModel: AccountViewModel) {
       modifier = Modifier.weight(1f)
     )
 
-
     IconButton(
       modifier = Modifier.then(Modifier.size(20.dp)),
       onClick = { uri.openUri("https://counter.amethyst.social/${baseNote.idHex}/") }
@@ -265,6 +345,173 @@ fun ReactionsRow(baseNote: Note, accountViewModel: AccountViewModel) {
   }
 }
 
+@OptIn(ExperimentalFoundationApi::class, ExperimentalLayoutApi::class)
+@Composable
+private fun ZapAmountChoicePopup(baseNote: Note, accountViewModel: AccountViewModel, onDismiss: () -> Unit, onChangeAmount: () -> Unit) {
+  val context = LocalContext.current
+  val scope = rememberCoroutineScope()
+
+  val accountState by accountViewModel.accountLiveData.observeAsState()
+  val account = accountState?.account ?: return
+
+  Popup(
+    alignment = Alignment.BottomCenter,
+    offset = IntOffset(0, -50),
+    onDismissRequest = { onDismiss() }
+  ) {
+
+    FlowRow() {
+
+      account.zapAmountChoices.forEach { amountInSats ->
+        Button(
+          modifier = Modifier.padding(horizontal = 3.dp),
+          onClick = {
+            accountViewModel.zap(baseNote, amountInSats * 1000, "", context) {
+              scope.launch {
+                Toast.makeText(context, it, Toast.LENGTH_SHORT).show()
+              }
+            }
+            onDismiss()
+          },
+          shape = RoundedCornerShape(20.dp),
+          colors = ButtonDefaults
+            .buttonColors(
+              backgroundColor = MaterialTheme.colors.primary
+            )
+        ) {
+          Text("⚡ ${showAmount(amountInSats.toBigDecimal())}",
+            color = Color.White,
+            textAlign = TextAlign.Center,
+            modifier = Modifier.combinedClickable(
+              onClick = {
+                accountViewModel.zap(baseNote, amountInSats * 1000, "", context) {
+                  scope.launch {
+                    Toast.makeText(context, it, Toast.LENGTH_SHORT).show()
+                  }
+                }
+                onDismiss()
+              },
+              onLongClick = {
+                onChangeAmount()
+              },
+            )
+          )
+        }
+      }
+
+    }
+  }
+}
+
+class UpdateZapAmountViewModel: ViewModel() {
+  private var account: Account? = null
+
+  var amounts by mutableStateOf(TextFieldValue(""))
+
+  fun load(account: Account) {
+    this.account = account
+    this.amounts = TextFieldValue(account.zapAmountChoices.joinToString(", "))
+  }
+
+  fun toListOfAmounts(commaSeparatedAmounts: String): List<Long> {
+    return commaSeparatedAmounts.split(",").map { it.trim().toLongOrNull() ?: 0 }
+  }
+
+  fun updateAmounts(commaSeparatedAmounts: TextFieldValue) {
+    val correctedText = toListOfAmounts(commaSeparatedAmounts.text).joinToString(", ")
+    amounts = TextFieldValue(correctedText, commaSeparatedAmounts.selection, commaSeparatedAmounts.composition)
+  }
+
+  fun sendPost() {
+    account?.changeZapAmounts(toListOfAmounts(amounts.text))
+    amounts = TextFieldValue("")
+  }
+
+  fun cancel() {
+    amounts = TextFieldValue("")
+  }
+}
+
+
+@OptIn(ExperimentalComposeUiApi::class)
+@Composable
+fun UpdateZapAmountDialog(onClose: () -> Unit, account: Account) {
+  val postViewModel: UpdateZapAmountViewModel = viewModel()
+
+  postViewModel.load(account)
+
+  val ctx = LocalContext.current.applicationContext
+
+  // initialize focus reference to be able to request focus programmatically
+  val focusRequester = remember { FocusRequester() }
+  val keyboardController = LocalSoftwareKeyboardController.current
+
+  LaunchedEffect(Unit) {
+    delay(100)
+    focusRequester.requestFocus()
+  }
+
+  Dialog(
+    onDismissRequest = { onClose() },
+    properties = DialogProperties(
+      dismissOnClickOutside = false
+    )
+  ) {
+    Surface() {
+      Column(modifier = Modifier.padding(10.dp)) {
+        Row(
+          modifier = Modifier.fillMaxWidth(),
+          horizontalArrangement = Arrangement.SpaceBetween,
+          verticalAlignment = Alignment.CenterVertically
+        ) {
+          CloseButton(onCancel = {
+            postViewModel.cancel()
+            onClose()
+          })
+
+          SaveButton(
+            onPost = {
+              postViewModel.sendPost()
+              LocalPreferences(ctx).saveToEncryptedStorage(account)
+              onClose()
+            },
+            isActive = postViewModel.amounts.text.isNotBlank()
+          )
+        }
+
+        Row(modifier = Modifier.fillMaxWidth()) {
+          OutlinedTextField(
+            label = { Text(text = "Comma-separated Zap amounts in sats") },
+            value = postViewModel.amounts,
+            onValueChange = {
+              postViewModel.updateAmounts(it)
+            },
+            keyboardOptions = KeyboardOptions.Default.copy(
+              capitalization = KeyboardCapitalization.None,
+              keyboardType = KeyboardType.Number
+            ),
+            placeholder = {
+              Text(
+                text = "100, 1000, 5000",
+                color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f)
+              )
+            },
+            singleLine = true,
+            modifier = Modifier
+              .fillMaxWidth()
+              .focusRequester(focusRequester)
+              .onFocusChanged {
+                if (it.isFocused) {
+                  keyboardController?.show()
+                }
+              }
+          )
+        }
+      }
+    }
+  }
+}
+
 fun showCount(count: Int?): String {
   if (count == null) return " "
   if (count == 0) return " "