feat: connection issues view

CHANGELOG.md

@@ -6,6 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+- Fix Spending and Savings screens scrolling behind top bar and add gradient fade effect #892
 
 ### Changed
 - Improve Pubky profile restore, contact editing, and contact routing flows #905
@@ -25,6 +26,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Show loading state on Spending tab when node is not running #875
 
 ### Added
+- Transfer from Savings button on empty Spending screen when savings balance exists #882
 - Pubky profile onboarding with contact sync, import, and editing #824
 - Lightning Connections empty state with onboarding screen #857
 - Unified PIN management screen (enable/disable/change in one place) #857

app/src/main/java/to/bitkit/env/Env.kt

@@ -246,7 +246,7 @@ internal object Env {
 @Suppress("ConstPropertyName")
 object Defaults {
     /** Default Bolt11 invoice expiry in seconds. */
-    const val bolt11InvoiceExpirySeconds = 3_600u
+    const val bolt11ExpirySec = 86_400u
 
     /** Recommended transaction base fee in sats */
     const val recommendedBaseFee = 256u

app/src/main/java/to/bitkit/repositories/BlocktankRepo.kt

@@ -41,7 +41,6 @@ import org.lightningdevkit.ldknode.ChannelDetails
 import to.bitkit.async.ServiceQueue
 import to.bitkit.data.CacheStore
 import to.bitkit.di.BgDispatcher
-import to.bitkit.env.Defaults
 import to.bitkit.env.Env
 import to.bitkit.ext.calculateRemoteBalance
 import to.bitkit.ext.nowTimestamp
@@ -57,6 +56,7 @@ import javax.inject.Named
 import javax.inject.Singleton
 import kotlin.math.ceil
 import kotlin.time.Duration
+import kotlin.time.Duration.Companion.hours
 import kotlin.time.Duration.Companion.seconds
 
 @Singleton
@@ -463,7 +463,7 @@ class BlocktankRepo @Inject constructor(
         val invoice = lightningRepo.createInvoice(
             amountSats = null,
             description = "blocktank-gift-code:$code",
-            expirySeconds = Defaults.bolt11InvoiceExpirySeconds,
+            expirySeconds = 1.hours.inWholeSeconds.toUInt(),
         ).getOrThrow()
 
         Logger.debug("Created invoice for gift code, requesting payment from LSP", context = TAG)

app/src/main/java/to/bitkit/repositories/LightningRepo.kt

@@ -58,10 +58,12 @@ import to.bitkit.data.SettingsStore
 import to.bitkit.data.backup.VssBackupClientLdk
 import to.bitkit.data.keychain.Keychain
 import to.bitkit.di.BgDispatcher
+import to.bitkit.env.Defaults
 import to.bitkit.env.Env
 import to.bitkit.ext.getSatsPerVByteFor
 import to.bitkit.ext.nowTimestamp
 import to.bitkit.ext.toPeerDetailsList
+import to.bitkit.ext.totalNextOutboundHtlcLimitSats
 import to.bitkit.models.ALL_ADDRESS_TYPE_STRINGS
 import to.bitkit.models.CoinSelectionPreference
 import to.bitkit.models.NATIVE_WITNESS_TYPES
@@ -93,6 +95,7 @@ import javax.inject.Inject
 import javax.inject.Singleton
 import kotlin.coroutines.cancellation.CancellationException
 import kotlin.time.Duration
+import kotlin.time.Duration.Companion.milliseconds
 import kotlin.time.Duration.Companion.minutes
 import kotlin.time.Duration.Companion.seconds
 
@@ -151,6 +154,10 @@ class LightningRepo @Inject constructor(
                         return@collect
                     }
 
+                    if (_lightningState.value.nodeLifecycleState.isRunning()) {
+                        connectToTrustedPeers()
+                    }
+
                     // Start retry loop if sync is failing
                     startSyncRetryLoopIfNeeded()
                 }
@@ -533,7 +540,11 @@ class LightningRepo @Inject constructor(
 
     private fun handleLdkEvent(event: Event) {
         when (event) {
-            is Event.ChannelPending, is Event.ChannelReady -> scope.launch { refreshChannelCache() }
+            is Event.ChannelPending, is Event.ChannelReady -> scope.launch {
+                refreshChannelCache()
+                syncState()
+            }
+
             is Event.ChannelClosed -> scope.launch { registerClosedChannel(event.channelId, event.reason) }
             else -> Unit
         }
@@ -917,7 +928,7 @@ class LightningRepo @Inject constructor(
     suspend fun createInvoice(
         amountSats: ULong? = null,
         description: String,
-        expirySeconds: UInt = 86_400u,
+        expirySeconds: UInt = Defaults.bolt11ExpirySec,
     ): Result<String> = executeWhenNodeRunning("createInvoice") {
         updateGeoBlockState()
         runCatching { lightningService.receive(amountSats, description, expirySeconds) }
@@ -926,7 +937,7 @@ class LightningRepo @Inject constructor(
     suspend fun createInvoiceMsats(
         amountMsats: ULong,
         description: String,
-        expirySeconds: UInt = 86_400u,
+        expirySeconds: UInt = Defaults.bolt11ExpirySec,
     ): Result<String> = executeWhenNodeRunning("createInvoiceMsats") {
         updateGeoBlockState()
         runCatching { lightningService.receiveMsats(amountMsats, description, expirySeconds) }
@@ -1009,15 +1020,69 @@ class LightningRepo @Inject constructor(
         }
     }
 
-    private suspend fun waitForUsableChannels() {
-        if (lightningService.channels?.any { it.isUsable } == true) return
+    suspend fun waitForUsableChannels() = withContext(bgDispatcher) {
+        var state = _lightningState.value
+        if (!state.nodeLifecycleState.canRun()) {
+            delayNoUsableChannelsFeedback()
+            return@withContext
+        }
+        if (state.hasUsableChannels()) return@withContext
+
+        state = waitForChannelsToLoadIfNeeded(state) ?: return@withContext
+        if (!state.nodeLifecycleState.canRun()) {
+            delayNoUsableChannelsFeedback()
+            return@withContext
+        }
+
+        if (state.channels.isEmpty()) {
+            if (state.nodeLifecycleState.isRunning()) {
+                syncState()
+                state = _lightningState.value
+            }
+
+            if (state.channels.isEmpty()) {
+                delayNoUsableChannelsFeedback()
+                return@withContext
+            }
+            if (state.hasUsableChannels()) return@withContext
+        }
 
         Logger.info("Waiting for usable channels before sending payment", context = TAG)
-        syncState()
 
-        withTimeoutOrNull(CHANNELS_USABLE_TIMEOUT_MS) {
-            _lightningState.first { state -> state.channels.any { it.isUsable } }
-        } ?: Logger.warn("Timeout waiting for usable channels", context = TAG)
+        val finalState = withTimeoutOrNull(CHANNELS_USABLE_TIMEOUT) {
+            _lightningState.first { it.shouldStopWaitingForUsableChannels() }
+        } ?: run {
+            Logger.warn("Timed out waiting for usable channels", context = TAG)
+            return@withContext
+        }
+
+        if (!finalState.nodeLifecycleState.canRun() || finalState.channels.isEmpty()) {
+            delayNoUsableChannelsFeedback()
+        }
+    }
+
+    private suspend fun waitForChannelsToLoadIfNeeded(state: LightningState): LightningState? {
+        if (state.channels.isNotEmpty() || state.nodeLifecycleState.isRunning()) return state
+
+        Logger.info("Waiting for node to load channels before sending payment", context = TAG)
+        return withTimeoutOrNull(CHANNELS_USABLE_TIMEOUT) {
+            _lightningState.first { it.shouldStopWaitingForLoadedChannels() }
+        } ?: run {
+            Logger.warn("Timed out waiting for node to load channels", context = TAG)
+            null
+        }
+    }
+
+    private fun LightningState.hasUsableChannels() = channels.any { it.isUsable }
+
+    private fun LightningState.shouldStopWaitingForLoadedChannels() =
+        !nodeLifecycleState.canRun() || nodeLifecycleState.isRunning() || channels.isNotEmpty()
+
+    private fun LightningState.shouldStopWaitingForUsableChannels() =
+        !nodeLifecycleState.canRun() || channels.isEmpty() || hasUsableChannels()
+
+    private suspend fun delayNoUsableChannelsFeedback() {
+        delay(NO_USABLE_CHANNELS_FEEDBACK_DELAY)
     }
 
     @Suppress("LongParameterList")
@@ -1229,19 +1294,20 @@ class LightningRepo @Inject constructor(
         }
     }
 
-    suspend fun canSend(amountSats: ULong, fallbackToCachedBalance: Boolean = true) = withContext(bgDispatcher) {
-        if (!_lightningState.value.nodeLifecycleState.canRun()) {
-            return@withContext false
-        }
-        if (_lightningState.value.nodeLifecycleState.isStarting() && fallbackToCachedBalance) {
-            return@withContext amountSats <= (cacheStore.data.first().balance?.maxSendLightningSats ?: 0u)
-        }
-        if (lightningService.channels == null) {
-            withTimeoutOrNull(CHANNELS_READY_TIMEOUT_MS) {
-                _lightningState.first { lightningService.channels != null }
+    suspend fun awaitPeerConnected(timeout: Duration = 30.seconds) = withContext(bgDispatcher) {
+        if (lightningService.peers?.any { it.isConnected } == true) return@withContext
+        Logger.debug("Waiting for peer to reconnect (timeout='$timeout')...", context = TAG)
+        withTimeoutOrNull(timeout) {
+            while (lightningService.peers?.any { it.isConnected } != true) {
+                delay(1.seconds)
             }
         }
-        return@withContext lightningService.canSend(amountSats)
+    }
+
+    fun canSend(amountSats: ULong): Boolean {
+        val state = _lightningState.value
+        if (!state.nodeLifecycleState.canRun()) return false
+        return state.channels.totalNextOutboundHtlcLimitSats() >= amountSats
     }
 
     fun getNodeId(): String? =
@@ -1478,8 +1544,8 @@ class LightningRepo @Inject constructor(
         private const val LENGTH_CHANNEL_ID_PREVIEW = 10
         private const val MS_SYNC_LOOP_DEBOUNCE = 500L
         private const val SYNC_RETRY_DELAY_MS = 15_000L
-        private const val CHANNELS_READY_TIMEOUT_MS = 15_000L
-        private const val CHANNELS_USABLE_TIMEOUT_MS = 15_000L
+        private val CHANNELS_USABLE_TIMEOUT = 15.seconds
+        private val NO_USABLE_CHANNELS_FEEDBACK_DELAY = 2_500.milliseconds
         val SEND_LN_TIMEOUT = 10.seconds
         private val PROBE_TIMEOUT = 60.seconds
     }

app/src/main/java/to/bitkit/services/CoreService.kt

@@ -70,6 +70,7 @@ import org.lightningdevkit.ldknode.TransactionDetails
 import to.bitkit.async.ServiceQueue
 import to.bitkit.data.CacheStore
 import to.bitkit.data.SettingsStore
+import to.bitkit.env.Defaults
 import to.bitkit.env.Env
 import to.bitkit.ext.amountSats
 import to.bitkit.ext.channelId
@@ -1523,11 +1524,15 @@ class BlocktankService(
         )
     }
 
-    suspend fun regtestCloseChannel(fundingTxId: String, vout: UInt, forceCloseAfterS: ULong = 86_400uL): String {
+    suspend fun regtestCloseChannel(
+        fundingTxId: String,
+        vout: UInt,
+        forceCloseAfterS: UInt = Defaults.bolt11ExpirySec,
+    ): String {
         return com.synonym.bitkitcore.regtestCloseChannel(
             fundingTxId = fundingTxId,
             vout = vout,
-            forceCloseAfterS = forceCloseAfterS,
+            forceCloseAfterS = forceCloseAfterS.toULong(),
         )
     }
 }

app/src/main/java/to/bitkit/services/LightningService.kt

@@ -48,7 +48,6 @@ import to.bitkit.data.keychain.Keychain
 import to.bitkit.di.BgDispatcher
 import to.bitkit.env.Defaults
 import to.bitkit.env.Env
-import to.bitkit.ext.totalNextOutboundHtlcLimitSats
 import to.bitkit.ext.uByteList
 import to.bitkit.ext.uri
 import to.bitkit.models.OpenChannelResult
@@ -596,15 +595,15 @@ class LightningService @Inject constructor(
     suspend fun receive(
         sat: ULong? = null,
         description: String,
-        expirySecs: UInt = Defaults.bolt11InvoiceExpirySeconds,
+        expirySecs: UInt = Defaults.bolt11ExpirySec,
     ): String {
         return receiveMsats(amountMsat = sat?.let { it * 1000u }, description = description, expirySecs = expirySecs)
     }
 
     suspend fun receiveMsats(
         amountMsat: ULong? = null,
         description: String,
-        expirySecs: UInt = Defaults.bolt11InvoiceExpirySeconds,
+        expirySecs: UInt = Defaults.bolt11ExpirySec,
     ): String {
         val node = this.node ?: throw ServiceError.NodeNotSetup()
 
@@ -630,23 +629,6 @@ class LightningService @Inject constructor(
         }
     }
 
-    fun canSend(amountSats: ULong): Boolean {
-        val channels = this.channels
-        if (channels == null) {
-            Logger.warn("Channels not available", context = TAG)
-            return false
-        }
-
-        val totalNextOutboundHtlcLimitSats = channels.totalNextOutboundHtlcLimitSats()
-
-        if (totalNextOutboundHtlcLimitSats < amountSats) {
-            Logger.warn("Insufficient outbound capacity: $totalNextOutboundHtlcLimitSats < $amountSats", context = TAG)
-            return false
-        }
-
-        return true
-    }
-
     suspend fun send(
         address: Address,
         sats: ULong,