chore: improve initial chat load speeds wrt contact resolving

apps/flipcash/core/src/main/kotlin/com/flipcash/app/core/chat/ChatIdentifier.kt

@@ -1,6 +1,7 @@
 package com.flipcash.app.core.chat
 
 import android.os.Parcelable
+import com.flipcash.app.core.contacts.DeviceContact
 import com.flipcash.services.models.chat.ChatId
 import kotlinx.parcelize.Parcelize
 import kotlinx.serialization.Serializable
@@ -18,7 +19,10 @@ sealed interface ChatIdentifier : Parcelable {
 
     @Serializable
     @Parcelize
-    data class ByContact(val e164: String, val displayName: String, val chatId: ChatId? = null) : ChatIdentifier {
-        override val key: String get() = e164
+`    data class ByContact(
+        val contact: DeviceContact,
+        val chatId: ChatId? = null
+    ) : ChatIdentifier {
+        override val key: String get() = contact.e164
     }
 }

apps/flipcash/core/src/main/kotlin/com/flipcash/app/core/contacts/DeviceContact.kt

@@ -0,0 +1,32 @@
+package com.flipcash.app.core.contacts
+
+import android.os.Parcelable
+import kotlinx.parcelize.Parcelize
+import kotlinx.serialization.Serializable
+
+@Serializable
+@Parcelize
+data class DeviceContact(
+    val e164: String,
+    val androidContactId: Long = -1L,
+    val displayName: String,
+    val photoUri: String?,
+    val displayNumber: String = "",
+): Parcelable {
+    var isUnknown: Boolean = false
+        private set
+
+    companion object {
+        fun unknownContact(
+            e164: String = "",
+            displayName: String? = null,
+            displayNumber: String? = null,
+        ) = DeviceContact(
+            e164 = e164,
+            androidContactId = -1,
+            displayName = displayName ?: e164,
+            displayNumber = displayNumber ?: e164,
+            photoUri = null,
+        ).apply { isUnknown = true }
+    }
+}

apps/flipcash/features/direct-send/src/main/kotlin/com/flipcash/app/directsend/internal/ContactListItem.kt

@@ -1,6 +1,6 @@
 package com.flipcash.app.directsend.internal
 
-import com.flipcash.app.contacts.device.DeviceContact
+import com.flipcash.app.core.contacts.DeviceContact
 import com.flipcash.services.models.chat.ChatId
 import kotlin.time.Instant
 

apps/flipcash/features/direct-send/src/main/kotlin/com/flipcash/app/directsend/internal/SendFlowViewModel.kt

@@ -1,34 +1,29 @@
 package com.flipcash.app.directsend.internal
-
 import androidx.compose.foundation.text.input.TextFieldState
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.runtime.snapshotFlow
 import androidx.lifecycle.viewModelScope
 import com.flipcash.app.contacts.ContactCoordinator
 import com.flipcash.app.contacts.ContactCoordinator.ContactState
-import com.flipcash.app.contacts.device.DeviceContact
 import com.flipcash.app.contacts.device.PickedContactData
-import com.flipcash.app.core.AppRoute
 import com.flipcash.app.core.chat.ChatIdentifier
+import com.flipcash.app.core.contacts.DeviceContact
 import com.flipcash.app.core.send.SendStep
 import com.flipcash.app.featureflags.FeatureFlag
 import com.flipcash.app.featureflags.FeatureFlagController
-import com.flipcash.app.payments.PurchaseMethodController
-import com.flipcash.app.phone.PhoneUtils
 import com.flipcash.app.permissions.PickedContact
+import com.flipcash.app.phone.PhoneUtils
 import com.flipcash.app.tokens.TokenCoordinator
 import com.flipcash.features.directsend.R
-import com.flipcash.services.models.chat.ChatId
 import com.flipcash.services.models.chat.ChatType
 import com.flipcash.services.models.chat.MessageContent
 import com.flipcash.services.user.UserManager
 import com.flipcash.shared.chat.ChatCoordinator
 import com.flipcash.shared.chat.ChatSummary
-import com.getcode.opencode.model.financial.Token
-import com.getcode.solana.keys.Mint
-import com.getcode.manager.BottomBarAction
 import com.getcode.manager.BottomBarManager
 import com.getcode.opencode.model.core.ID
+import com.getcode.opencode.model.financial.Token
+import com.getcode.solana.keys.Mint
 import com.getcode.util.resources.ResourceHelper
 import com.getcode.view.BaseViewModel
 import com.getcode.view.LoadingSuccessState
@@ -175,7 +170,10 @@ internal class SendFlowViewModel @Inject constructor(
                 val (contact, isOnFlipcash) = row
                 if (isOnFlipcash) {
                     val identifier = if (contact.e164.isNotEmpty()) {
-                        ChatIdentifier.ByContact(contact.e164, contact.displayName, row.chatId)
+                        ChatIdentifier.ByContact(
+                            contact = contact,
+                            chatId = row.chatId
+                        )
                     } else {
                         ChatIdentifier.ByChatId(row.chatId!!)
                     }

apps/flipcash/features/direct-send/src/main/kotlin/com/flipcash/app/directsend/internal/screens/ContactListScreen.kt

@@ -5,13 +5,13 @@ import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
 import androidx.compose.animation.togetherWith
 import androidx.compose.foundation.background
+import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
@@ -24,8 +24,7 @@ import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.GroupAdd
-import androidx.compose.material.icons.filled.Person
+import androidx.compose.material.icons.filled.Add
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.Text
@@ -41,14 +40,12 @@ import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.tooling.preview.PreviewWrapper
-import androidx.compose.foundation.border
-import androidx.compose.material.icons.filled.Add
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.zIndex
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
-import com.flipcash.app.contacts.device.DeviceContact
 import com.flipcash.app.contacts.ui.ContactAvatar
 import com.flipcash.app.core.AppRoute
+import com.flipcash.app.core.contacts.DeviceContact
 import com.flipcash.app.core.send.SendResult
 import com.flipcash.app.core.send.SendStep
 import com.flipcash.app.directsend.internal.ContactListItem
@@ -65,7 +62,6 @@ import com.getcode.theme.White10
 import com.getcode.theme.extraSmall
 import com.getcode.ui.components.AppBarDefaults
 import com.getcode.ui.components.AppBarWithTitle
-import com.getcode.ui.components.CircularIconButton
 import com.getcode.ui.components.SearchInput
 import com.getcode.ui.core.verticalScrollStateGradient
 import com.getcode.ui.theme.CodeScaffold

apps/flipcash/features/messenger/src/main/kotlin/com/flipcash/app/messenger/internal/ChatViewModel.kt

@@ -2,16 +2,16 @@ package com.flipcash.app.messenger.internal
 
 import androidx.compose.foundation.text.input.TextFieldState
 import androidx.compose.foundation.text.input.clearText
+import androidx.compose.runtime.snapshotFlow
 import androidx.lifecycle.viewModelScope
 import androidx.paging.PagingData
 import androidx.paging.cachedIn
 import androidx.paging.flatMap
 import androidx.paging.insertSeparators
 import com.flipcash.app.contacts.ContactCoordinator
-import com.flipcash.app.contacts.device.DeviceContact
-import androidx.compose.runtime.snapshotFlow
 import com.flipcash.app.core.AppRoute
 import com.flipcash.app.core.chat.ChatIdentifier
+import com.flipcash.app.core.contacts.DeviceContact
 import com.flipcash.app.core.extensions.onResult
 import com.flipcash.app.core.ui.ConfirmationStyle
 import com.flipcash.app.featureflags.FeatureFlag
@@ -26,7 +26,6 @@ import com.flipcash.services.models.buildDmPaymentMetadata
 import com.flipcash.services.models.chat.ChatId
 import com.flipcash.services.models.chat.DeliveryStatus
 import com.flipcash.services.models.chat.MessageContent
-import com.flipcash.services.models.chat.MessagePointer
 import com.flipcash.services.models.chat.TypingState
 import com.flipcash.services.user.UserManager
 import com.flipcash.shared.amountentry.AmountEntryDelegate
@@ -210,56 +209,48 @@ internal class ChatViewModel @Inject constructor(
             }
         }.cachedIn(viewModelScope)
 
-    private val maxAmountFlow = combine(
-        transactionController.limits,
-        tokenCoordinator.observeSelectedTokenMint()
-            .flatMapLatest { mint -> tokenCoordinator.balanceForToken(mint) },
-        exchange.observePreferredRate(),
-    ) { limits, balance, rate ->
-        val balanceInLocal = balance.convertingTo(rate)
-        val sendLimit = limits?.sendLimitFor(rate.currency) ?: SendLimit.Zero
-        Fiat(min(sendLimit.nextTransaction, balanceInLocal.toDouble()), rate.currency)
-    }.stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), null)
-
-    val amountDelegate = AmountEntryDelegate(
-        exchange = exchange,
-        scope = viewModelScope,
-        style = AmountEntryStyle(
-            actionLabel = resources.getString(R.string.action_swipeToSend),
-            actionStyle = ConfirmationStyle.Slide,
-            infoHint = { resources.getString(R.string.subtitle_sendHint, it) },
-            overMaxHint = { resources.getString(R.string.subtitle_sendHintLimitExceeded, it) },
-        ),
-        loadingState = stateFlow.map { it.sendProgress }
-            .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), LoadingSuccessState()),
-        maxAmount = maxAmountFlow,
-    )
-
-    init {
-        // Token observation
-        tokenCoordinator.observeSelectedTokenMint()
-            .flatMapLatest { mint ->
-                tokenCoordinator.tokenBalances.map { tokens ->
-                    tokens.find { it.token.address == mint }
-                }
-            }
-            .filterNotNull()
-            .onEach { tokenWithBalance ->
-                dispatchEvent(Event.TokenUpdated(tokenWithBalance.token))
-            }.launchIn(viewModelScope)
+    private val maxAmountFlow by lazy {
+        combine(
+            transactionController.limits,
+            tokenCoordinator.observeSelectedTokenMint()
+                .flatMapLatest { mint -> tokenCoordinator.balanceForToken(mint) },
+            exchange.observePreferredRate(),
+        ) { limits, balance, rate ->
+            val balanceInLocal = balance.convertingTo(rate)
+            val sendLimit = limits?.sendLimitFor(rate.currency) ?: SendLimit.Zero
+            Fiat(min(sendLimit.nextTransaction, balanceInLocal.toDouble()), rate.currency)
+        }.stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), null)
+    }
 
-        exchange.observePreferredRate()
-            .onEach { rate ->
-                val currency = exchange.getCurrency(rate.currency.name)
-                if (currency != null) {
-                    amountDelegate.onCurrencyChanged(currency)
-                }
-            }.launchIn(viewModelScope)
+    val amountDelegate by lazy {
+        AmountEntryDelegate(
+            exchange = exchange,
+            scope = viewModelScope,
+            style = AmountEntryStyle(
+                actionLabel = resources.getString(R.string.action_swipeToSend),
+                actionStyle = ConfirmationStyle.Slide,
+                infoHint = { resources.getString(R.string.subtitle_sendHint, it) },
+                overMaxHint = { resources.getString(R.string.subtitle_sendHintLimitExceeded, it) },
+            ),
+            loadingState = stateFlow.map { it.sendProgress }
+                .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), LoadingSuccessState()),
+            maxAmount = maxAmountFlow,
+        )
+    }
 
-        transactionController.limits
-            .onEach { dispatchEvent(Event.LimitsChanged(it)) }
-            .launchIn(viewModelScope)
+    init {
+        // Essential — needed immediately for chat display
+        initChatHandlers()
+
+        viewModelScope.launch {
+            // Yield to let the first frame render before setting up remaining collectors
+            initTokenAndExchangeObservers()
+            initTypingHandlers()
+            initSendHandlers()
+        }
+    }
 
+    private fun initChatHandlers() {
         // Unified chat open handler — resolves chatId and contact from the identifier
         eventFlow
             .filterIsInstance<Event.OnChatOpened>()
@@ -269,9 +260,7 @@ internal class ChatViewModel @Inject constructor(
                 // 1. Resolve chatId
                 val chatId = when (identifier) {
                     is ChatIdentifier.ByContact -> identifier.chatId
-                        ?: chatCoordinator.getChatId(
-                            DeviceContact.unknownContact(identifier.e164)
-                        ).getOrNull()
+                        ?: chatCoordinator.getChatId(identifier.contact).getOrNull()
                     is ChatIdentifier.ByChatId -> identifier.chatId
                 }
 
@@ -285,13 +274,7 @@ internal class ChatViewModel @Inject constructor(
                 // 2. Resolve contact
                 when (identifier) {
                     is ChatIdentifier.ByContact -> {
-                        val contact = contactCoordinator.lookupContact(identifier.e164).getOrElse {
-                            DeviceContact.unknownContact(
-                                e164 = identifier.e164,
-                                displayName = identifier.displayName.takeIf { it.isNotBlank() },
-                            )
-                        }
-                        dispatchEvent(Event.OnContactFound(contact))
+                        dispatchEvent(Event.OnContactFound(identifier.contact))
                     }
                     is ChatIdentifier.ByChatId -> {
                         val contact = contactCoordinator.lookupContactByDmChatId(
@@ -328,11 +311,39 @@ internal class ChatViewModel @Inject constructor(
                 chatCoordinator.advanceReadPointer(chatId, event.messageId)
             }
             .launchIn(viewModelScope)
+    }
+
+    private fun initTokenAndExchangeObservers() {
+        // Token observation
+        tokenCoordinator.observeSelectedTokenMint()
+            .flatMapLatest { mint ->
+                tokenCoordinator.tokenBalances.map { tokens ->
+                    tokens.find { it.token.address == mint }
+                }
+            }
+            .filterNotNull()
+            .onEach { tokenWithBalance ->
+                dispatchEvent(Event.TokenUpdated(tokenWithBalance.token))
+            }.launchIn(viewModelScope)
+
+        exchange.observePreferredRate()
+            .onEach { rate ->
+                val currency = exchange.getCurrency(rate.currency.name)
+                if (currency != null) {
+                    amountDelegate.onCurrencyChanged(currency)
+                }
+            }.launchIn(viewModelScope)
+
+        transactionController.limits
+            .onEach { dispatchEvent(Event.LimitsChanged(it)) }
+            .launchIn(viewModelScope)
+    }
 
+    @OptIn(ExperimentalCoroutinesApi::class)
+    private fun initTypingHandlers() {
         // Dispatch typing notifications based on text changes.
         // transformLatest auto-cancels the previous block on each new emission,
         // replacing manual Job tracking for idle timeout and heartbeats.
-        @OptIn(ExperimentalCoroutinesApi::class)
         snapshotFlow { stateFlow.value.chatInputState.text.toString() }
             .drop(1)
             .distinctUntilChanged()
@@ -410,7 +421,9 @@ internal class ChatViewModel @Inject constructor(
             }
             .onEach { dispatchEvent(Event.TypingEnabled(it)) }
             .launchIn(viewModelScope)
+    }
 
+    private fun initSendHandlers() {
         // Send text message
         eventFlow.filterIsInstance<Event.SendMessage>()
             .map { stateFlow.value.chatInputState }
@@ -610,7 +623,12 @@ internal class ChatViewModel @Inject constructor(
     companion object {
         val updateStateForEvent: (Event) -> ((State) -> State) = { event ->
             when (event) {
-                is Event.OnChatOpened -> { state -> state }
+                is Event.OnChatOpened -> { state ->
+                    when (val id = event.identifier) {
+                        is ChatIdentifier.ByContact -> state.copy(chattingWith = id.contact)
+                        is ChatIdentifier.ByChatId -> state
+                    }
+                }
                 is Event.OnContactFound -> { state ->
                     state.copy(
                         chattingWith = event.contact