refactor: consolidate convos state and intent handling

app/src/main/kotlin/dev/meloda/fast/presentation/MainScreen.kt

@@ -38,7 +38,7 @@ import dev.chrisbanes.haze.HazeState
 import dev.chrisbanes.haze.hazeEffect
 import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
 import dev.chrisbanes.haze.materials.HazeMaterials
-import dev.meloda.fast.convos.navigation.ConvoGraph
+import dev.meloda.fast.convos.model.ConvoNavigationIntent
 import dev.meloda.fast.convos.navigation.convosGraph
 import dev.meloda.fast.friends.navigation.Friends
 import dev.meloda.fast.friends.navigation.friendsScreen
@@ -198,15 +198,17 @@ fun MainScreen(
                             },
                         )
                         convosGraph(
+                            handleNavigationIntent = { intent ->
+                                when (intent) {
+                                    ConvoNavigationIntent.Back -> {}
+                                    ConvoNavigationIntent.Archive -> {}
+                                    ConvoNavigationIntent.CreateChat -> onNavigateToCreateChat()
+                                    is ConvoNavigationIntent.MessagesHistory -> {
+                                        onNavigateToMessagesHistory(intent.convoId)
+                                    }
+                                }
+                            },
                             activity = activity,
-                            onError = onError,
-                            onNavigateToMessagesHistory = onNavigateToMessagesHistory,
-                            onNavigateToCreateChat = onNavigateToCreateChat,
-                            onScrolledToTop = {
-                                tabReselected = tabReselected.toMutableMap().also {
-                                    it[ConvoGraph] = false
-                                }
-                            }
                         )
                         profileScreen(
                             activity = activity,

feature/convos/src/main/kotlin/dev/meloda/fast/convos/ConvosViewModel.kt

@@ -3,6 +3,7 @@ package dev.meloda.fast.convos
 import android.content.Context
 import android.content.res.Resources
 import android.os.Bundle
+import androidx.compose.runtime.Immutable
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import coil.ImageLoader
@@ -15,10 +16,12 @@ import dev.meloda.fast.common.extensions.listenValue
 import dev.meloda.fast.common.extensions.setValue
 import dev.meloda.fast.common.extensions.updateValue
 import dev.meloda.fast.convos.model.ConvoDialog
-import dev.meloda.fast.convos.model.ConvoNavigation
+import dev.meloda.fast.convos.model.ConvoIntent
+import dev.meloda.fast.convos.model.ConvoNavigationIntent
 import dev.meloda.fast.convos.model.ConvosScreenState
 import dev.meloda.fast.convos.model.InteractionJob
 import dev.meloda.fast.convos.model.NewInteractionException
+import dev.meloda.fast.data.UserConfig
 import dev.meloda.fast.data.VkUtils
 import dev.meloda.fast.data.processState
 import dev.meloda.fast.datastore.UserSettings
@@ -28,25 +31,23 @@ import dev.meloda.fast.domain.LongPollUpdatesParser
 import dev.meloda.fast.domain.MessagesUseCase
 import dev.meloda.fast.domain.util.asPresentation
 import dev.meloda.fast.domain.util.extractAvatar
-import dev.meloda.fast.model.BaseError
 import dev.meloda.fast.model.ConvosFilter
 import dev.meloda.fast.model.InteractionType
 import dev.meloda.fast.model.LongPollParsedEvent
 import dev.meloda.fast.model.api.domain.VkConvo
 import dev.meloda.fast.ui.model.vk.ConvoOption
 import dev.meloda.fast.ui.model.vk.UiConvo
+import dev.meloda.fast.ui.util.ImmutableList
 import dev.meloda.fast.ui.util.ImmutableList.Companion.toImmutableList
+import dev.meloda.fast.ui.util.buildImmutableList
 import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.launchIn
-import kotlinx.coroutines.flow.map
-import kotlinx.coroutines.flow.stateIn
-import kotlinx.coroutines.flow.update
 
+@Immutable
 class ConvosViewModel(
     updatesParser: LongPollUpdatesParser,
-    private val filter: ConvosFilter,
+    val filter: ConvosFilter,
     private val convoUseCase: ConvoUseCase,
     private val messagesUseCase: MessagesUseCase,
     private val resources: Resources,
@@ -59,40 +60,18 @@ class ConvosViewModel(
     private val screenState = MutableStateFlow(ConvosScreenState.EMPTY)
     val screenStateFlow get() = screenState.asStateFlow()
 
-    private val navigation = MutableStateFlow<ConvoNavigation?>(null)
+    private val navigationIntent = MutableStateFlow<ConvoNavigationIntent?>(null)
-    val navigationFlow get() = navigation.asStateFlow()
+    val navigationIntentFlow get() = navigationIntent.asStateFlow()
 
-    private val dialog = MutableStateFlow<ConvoDialog?>(null)
+    private val convos: MutableList<VkConvo> = mutableListOf()
-    val dialogFlow get() = dialog.asStateFlow()
 
-    private val convos = MutableStateFlow<List<VkConvo>>(emptyList())
+    private val pinnedConvosCount get() = convos.count(VkConvo::isPinned)
-    val convosFlow get() = convos.asStateFlow()
 
-    private val uiConvos = MutableStateFlow<List<UiConvo>>(emptyList())
+    private var currentOffset = 0
-    val uiConvosFlow get() = uiConvos.asStateFlow()
-
-    private val pinnedConvosCount = convosFlow.map { convos ->
-        convos.count(VkConvo::isPinned)
-    }.stateIn(viewModelScope, SharingStarted.Eagerly, 0)
-
-    private val baseError = MutableStateFlow<BaseError?>(null)
-    val baseErrorFlow get() = baseError.asStateFlow()
-
-    private val currentOffset = MutableStateFlow(0)
-    val currentOffsetFlow get() = currentOffset.asStateFlow()
-
-    private val canPaginate = MutableStateFlow(false)
-    val canPaginateFlow get() = canPaginate.asStateFlow()
-
-    private val expandedConvoId = MutableStateFlow(0L)
-
-    private val useContactNames: Boolean get() = userSettings.useContactNames.value
 
     private val interactionsTimers = hashMapOf<Long, InteractionJob?>()
 
     init {
-        screenState.updateValue { copy(isArchive = filter == ConvosFilter.ARCHIVE) }
-
         loadConvos()
 
         updatesParser.onNewMessage(::handleNewMessage)
@@ -110,100 +89,143 @@ class ConvosViewModel(
         }
     }
 
-    fun onNavigationConsumed() {
+    fun handleIntent(intent: ConvoIntent) {
-        navigation.setValue { null }
+        when (intent) {
+            ConvoIntent.ArchiveClick -> {
+                navigationIntent.setValue { ConvoNavigationIntent.Archive }
             }
 
-    fun onDialogConfirmed(dialog: ConvoDialog, bundle: Bundle) {
+            ConvoIntent.Back -> {
-        onDialogDismissed(dialog)
+                navigationIntent.setValue { ConvoNavigationIntent.Back }
+            }
+
+            ConvoIntent.ConsumeScrollToTop -> Unit
+            ConvoIntent.CreateChatClick -> {
+                navigationIntent.setValue { ConvoNavigationIntent.CreateChat }
+            }
+
+            ConvoIntent.ErrorActionButtonClick -> {
+                onRefresh()
+            }
+
+            is ConvoIntent.ItemClick -> {
+                onConvoItemClick(intent.convoId)
+            }
+
+            is ConvoIntent.ItemLongClick -> {
+                onConvoItemLongClick(intent.convoId)
+            }
+
+            is ConvoIntent.OptionItemClick -> {
+                onOptionClicked(intent.option)
+            }
+
+            ConvoIntent.PaginationConditionsMet -> {
+                onPaginationConditionsMet()
+            }
+
+            ConvoIntent.Refresh -> {
+                onRefresh()
+            }
+
+            is ConvoIntent.SetScrollIndex -> {
+                setScrollIndex(intent.index)
+            }
+
+            is ConvoIntent.SetScrollOffset -> {
+                setScrollOffset(intent.offset)
+            }
+
+            is ConvoIntent.Dialog -> {
+                when (intent) {
+                    is ConvoIntent.Dialog.Cancel -> Unit
+                    is ConvoIntent.Dialog.Confirm -> onDialogConfirmed(intent.bundle)
+                    ConvoIntent.Dialog.Dismiss -> onDialogDismissed()
+                }
+            }
+        }
+    }
+
+    fun onNavigationConsumed() {
+        navigationIntent.setValue { null }
+    }
+
+    private fun onDialogConfirmed(bundle: Bundle?) {
+        val dialog = screenState.value.dialog ?: return
+        onDialogDismissed()
+
+        val convo = with(screenState.value) {
+            convos.find { it.id == expandedConvoId }
+        } ?: return
 
         when (dialog) {
-            is ConvoDialog.ConvoDelete -> {
+            is ConvoDialog.Delete -> {
-                deleteConvo(dialog.convoId)
+                deleteConvo(convo.id)
             }
 
-            is ConvoDialog.ConvoPin -> {
+            is ConvoDialog.Pin -> {
-                pinConvo(dialog.convoId, true)
+                pinConvo(convo.id, true)
             }
 
-            is ConvoDialog.ConvoUnpin -> {
+            is ConvoDialog.Unpin -> {
-                pinConvo(dialog.convoId, false)
+                pinConvo(convo.id, false)
             }
 
-            is ConvoDialog.ConvoArchive -> {
+            is ConvoDialog.Archive -> {
-                archiveConvo(dialog.convoId, true)
+                archiveConvo(convo.id, true)
             }
 
-            is ConvoDialog.ConvoUnarchive -> {
+            is ConvoDialog.Unarchive -> {
-                archiveConvo(dialog.convoId, false)
+                archiveConvo(convo.id, false)
             }
         }
 
-        expandedConvoId.setValue { 0 }
+        collapseConvos(false)
         syncUiConvos()
     }
 
-    fun onDialogDismissed(dialog: ConvoDialog) {
+    private fun onDialogDismissed() {
-        this.dialog.setValue { null }
+        screenState.updateValue { copy(dialog = null) }
     }
 
-    fun onDialogItemPicked(dialog: ConvoDialog, bundle: Bundle) {
+    private fun onPaginationConditionsMet() {
-        when (dialog) {
+        currentOffset = convos.size
-            is ConvoDialog.ConvoDelete -> Unit
-            is ConvoDialog.ConvoPin -> Unit
-            is ConvoDialog.ConvoUnpin -> Unit
-            is ConvoDialog.ConvoArchive -> Unit
-            is ConvoDialog.ConvoUnarchive -> Unit
-        }
-    }
-
-    fun onErrorButtonClicked() {
-        when (baseErrorFlow.value) {
-            null -> Unit
-
-            is BaseError.ConnectionError,
-            is BaseError.InternalError,
-            is BaseError.SimpleError,
-            is BaseError.UnknownError -> onRefresh()
-
-            else -> Unit
-        }
-    }
-
-    fun onPaginationConditionsMet() {
-        currentOffset.update { convosFlow.value.size }
         loadConvos()
     }
 
-    fun onRefresh() {
+    private fun onErrorConsumed() {
+        screenState.updateValue { copy(error = null) }
+    }
+
+    private fun onRefresh() {
         onErrorConsumed()
         loadConvos(offset = 0)
     }
 
-    fun onConvoItemClick(convo: UiConvo) {
+    private fun onConvoItemClick(convoId: Long) {
         collapseConvos()
-        navigation.setValue { ConvoNavigation.MessagesHistory(peerId = convo.id) }
+        navigationIntent.setValue { ConvoNavigationIntent.MessagesHistory(convoId) }
     }
 
-    fun onConvoItemLongClick(convo: UiConvo) {
+    private fun onConvoItemLongClick(convoId: Long) {
-        expandedConvoId.setValue {
+        val isExpanded = screenState.value.convos.find { it.id == convoId }?.isExpanded == true
-            if (convo.isExpanded) 0
+
-            else convo.id
+        screenState.updateValue { copy(expandedConvoId = if (isExpanded) 0L else convoId) }
-        }
         syncUiConvos()
     }
 
-    fun onOptionClicked(
+    private fun onOptionClicked(option: ConvoOption) {
-        convo: UiConvo,
+        val convo =
-        option: ConvoOption
+            screenState.value.convos.find { it.id == screenState.value.expandedConvoId } ?: return
-    ) {
+
         when (option) {
-            ConvoOption.Delete -> {
+            ConvoOption.Delete -> setDialog(ConvoDialog.Delete)
-                dialog.setValue { ConvoDialog.ConvoDelete(convo.id) }
-            }
 
             ConvoOption.MarkAsRead -> {
-                convo.lastMessageId?.let { lastMessageId ->
+                val lastMessageId =
+                    screenState.value.convos.find { it.id == screenState.value.expandedConvoId }?.lastMessageId
+
+                if (lastMessageId != null) {
                     readConvo(
                         peerId = convo.id,
                         startMessageId = lastMessageId
@@ -212,48 +234,39 @@ class ConvosViewModel(
                 }
             }
 
-            ConvoOption.Pin -> {
+            ConvoOption.Pin -> setDialog(ConvoDialog.Pin)
-                dialog.setValue { ConvoDialog.ConvoPin(convo.id) }
+            ConvoOption.Unpin -> setDialog(ConvoDialog.Unpin)
-            }
+            ConvoOption.Archive -> setDialog(ConvoDialog.Archive)
-
+            ConvoOption.Unarchive -> setDialog(ConvoDialog.Unarchive)
-            ConvoOption.Unpin -> {
-                dialog.setValue { ConvoDialog.ConvoUnpin(convo.id) }
-            }
-
-            ConvoOption.Archive -> {
-                dialog.setValue { ConvoDialog.ConvoArchive(convo.id) }
-            }
-
-            ConvoOption.Unarchive -> {
-                dialog.setValue { ConvoDialog.ConvoUnarchive(convo.id) }
-            }
         }
     }
 
-    fun onErrorConsumed() {
+    private fun setScrollIndex(index: Int) {
-        baseError.setValue { null }
-    }
-
-    fun setScrollIndex(index: Int) {
         screenState.setValue { old -> old.copy(scrollIndex = index) }
     }
 
-    fun setScrollOffset(offset: Int) {
+    private fun setScrollOffset(offset: Int) {
         screenState.setValue { old -> old.copy(scrollOffset = offset) }
     }
 
-    fun onCreateChatButtonClicked() {
+    private fun setDialog(dialog: ConvoDialog?) {
-        navigation.setValue { ConvoNavigation.CreateChat }
+        screenState.updateValue { copy(dialog = dialog) }
     }
 
-    private fun collapseConvos() {
+    private fun replaceConvos(newConvos: List<VkConvo>) {
-        expandedConvoId.setValue { 0 }
+        convos.clear()
+        convos.addAll(newConvos)
+    }
+
+    private fun collapseConvos(sync: Boolean = true) {
+        screenState.updateValue { copy(expandedConvoId = null) }
+
+        if (sync) {
             syncUiConvos()
         }
+    }
 
-    private fun loadConvos(
+    private fun loadConvos(offset: Int = currentOffset) {
-        offset: Int = currentOffsetFlow.value
-    ) {
         convoUseCase.getConvos(
             count = LOAD_COUNT,
             offset = offset,
@@ -261,21 +274,18 @@ class ConvosViewModel(
         ).listenValue(viewModelScope) { state ->
             state.processState(
                 error = { error ->
-                    val newBaseError = VkUtils.parseError(error)
+                    screenState.updateValue { copy(error = VkUtils.parseError(error)) }
-                    baseError.update { newBaseError }
                 },
                 success = { response ->
-                    val convos = response
+                    val newConvos = if (offset == 0) {
-                    val fullConvos = if (offset == 0) {
+                        response
-                        convos
                     } else {
-                        this.convosFlow.value.plus(convos)
+                        convos.plus(response)
                     }
 
                     val itemsCountSufficient = response.size == LOAD_COUNT
 
-                    val paginationExhausted = !itemsCountSufficient &&
+                    val paginationExhausted = !itemsCountSufficient && convos.isNotEmpty()
-                            this.convosFlow.value.isNotEmpty()
 
                     screenState.updateValue {
                         copy(isPaginationExhausted = paginationExhausted)
@@ -294,9 +304,10 @@ class ConvosViewModel(
 
                     convoUseCase.storeConvos(response)
 
-                    this.convos.emit(fullConvos)
+                    replaceConvos(newConvos)
+
+                    screenState.updateValue { copy(canPaginate = itemsCountSufficient) }
                     syncUiConvos()
-                    canPaginate.setValue { itemsCountSufficient }
                 }
             )
 
@@ -314,13 +325,13 @@ class ConvosViewModel(
             state.processState(
                 error = {},
                 success = {
-                    val newConvos = convosFlow.value.toMutableList()
+                    val newConvos = convos.toMutableList()
                     val convoIndex =
                         newConvos.indexOfFirstOrNull { it.id == peerId }
                             ?: return@processState
 
                     newConvos.removeAt(convoIndex)
-                    convos.update { newConvos.sorted() }
+                    replaceConvos(newConvos.sorted())
                     syncUiConvos()
                 }
             )
@@ -338,7 +349,7 @@ class ConvosViewModel(
                             LongPollParsedEvent.ChatMajorChanged(
                                 peerId = peerId,
                                 majorId = if (pin) {
-                                    pinnedConvosCount.value.plus(1) * 16
+                                    pinnedConvosCount.plus(1) * 16
                                 } else {
                                     0
                                 }
@@ -357,7 +368,7 @@ class ConvosViewModel(
                 state.processState(
                     error = {},
                     success = {
-                        convosFlow.value.find { it.id == peerId }?.let { convo ->
+                        convos.find { it.id == peerId }?.let { convo ->
                             handleChatArchived(
                                 LongPollParsedEvent.ChatArchived(
                                     convo = convo,
@@ -374,7 +385,7 @@ class ConvosViewModel(
     private fun handleNewMessage(event: LongPollParsedEvent.NewMessage) {
         val message = event.message
 
-        val newConvos = convosFlow.value.toMutableList()
+        val newConvos = convos.toMutableList()
         val convoIndex =
             newConvos.indexOfFirstOrNull { it.id == message.peerId }
 
@@ -392,8 +403,8 @@ class ConvosViewModel(
                         val convo = (response.firstOrNull() ?: return@listenValue)
                             .copy(lastMessage = message)
 
-                        newConvos.add(pinnedConvosCount.value, convo)
+                        newConvos.add(pinnedConvosCount, convo)
-                        convos.update { newConvos.sorted() }
+                        replaceConvos(newConvos.sorted())
                         syncUiConvos()
                     }
                 )
@@ -429,19 +440,17 @@ class ConvosViewModel(
                 newConvos[convoIndex] = newConvo
             } else {
                 newConvos.removeAt(convoIndex)
-
+                newConvos.add(pinnedConvosCount, newConvo)
-                val toPosition = pinnedConvosCount.value
-                newConvos.add(toPosition, newConvo)
             }
 
-            convos.update { newConvos.sorted() }
+            replaceConvos(newConvos.sorted())
             syncUiConvos()
         }
     }
 
     private fun handleEditedMessage(event: LongPollParsedEvent.MessageEdited) {
         val message = event.message
-        val newConvos = convosFlow.value.toMutableList()
+        val newConvos = convos.toMutableList()
 
         val convoIndex = newConvos.indexOfFirstOrNull { it.id == message.peerId }
         if (convoIndex == null) { // диалога нет в списке
@@ -453,13 +462,14 @@ class ConvosViewModel(
                 lastMessageId = message.id,
                 lastCmId = message.cmId
             )
-            convos.update { newConvos }
+
+            replaceConvos(newConvos)
             syncUiConvos()
         }
     }
 
     private fun handleReadIncomingMessage(event: LongPollParsedEvent.IncomingMessageRead) {
-        val newConvos = convosFlow.value.toMutableList()
+        val newConvos = convos.toMutableList()
 
         val convoIndex =
             newConvos.indexOfFirstOrNull { it.id == event.peerId }
@@ -473,13 +483,13 @@ class ConvosViewModel(
                     unreadCount = event.unreadCount
                 )
 
-            convos.update { newConvos }
+            replaceConvos(newConvos)
             syncUiConvos()
         }
     }
 
     private fun handleReadOutgoingMessage(event: LongPollParsedEvent.OutgoingMessageRead) {
-        val newConvos = convosFlow.value.toMutableList()
+        val newConvos = convos.toMutableList()
 
         val convoIndex =
             newConvos.indexOfFirstOrNull { it.id == event.peerId }
@@ -493,7 +503,7 @@ class ConvosViewModel(
                     unreadCount = event.unreadCount
                 )
 
-            convos.update { newConvos }
+            replaceConvos(newConvos)
             syncUiConvos()
         }
     }
@@ -503,7 +513,7 @@ class ConvosViewModel(
         val peerId = event.peerId
         val userIds = event.userIds
 
-        val newConvos = convosFlow.value.toMutableList()
+        val newConvos = convos.toMutableList()
         val convoAndIndex =
             newConvos.findWithIndex { it.id == peerId }
 
@@ -514,7 +524,7 @@ class ConvosViewModel(
                     interactionIds = userIds
                 )
 
-            convos.update { newConvos }
+            replaceConvos(newConvos)
             syncUiConvos()
 
             interactionsTimers[peerId]?.let { interactionJob ->
@@ -546,7 +556,7 @@ class ConvosViewModel(
     private fun stopInteraction(peerId: Long, interactionJob: InteractionJob) {
         interactionsTimers[peerId] ?: return
 
-        val newConvos = convosFlow.value.toMutableList()
+        val newConvos = convos.toMutableList()
         val convoAndIndex =
             newConvos.findWithIndex { it.id == peerId } ?: return
 
@@ -556,7 +566,7 @@ class ConvosViewModel(
                 interactionIds = emptyList()
             )
 
-        convos.update { newConvos }
+        replaceConvos(newConvos)
         syncUiConvos()
 
         interactionJob.timerJob.cancel()
@@ -564,7 +574,7 @@ class ConvosViewModel(
     }
 
     private fun handleChatMajorChanged(event: LongPollParsedEvent.ChatMajorChanged) {
-        val newConvos = convosFlow.value.toMutableList()
+        val newConvos = convos.toMutableList()
         val convoIndex =
             newConvos.indexOfFirstOrNull { it.id == event.peerId }
 
@@ -574,13 +584,13 @@ class ConvosViewModel(
             newConvos[convoIndex] =
                 newConvos[convoIndex].copy(majorId = event.majorId)
 
-            convos.setValue { newConvos.sorted() }
+            replaceConvos(newConvos.sorted())
             syncUiConvos()
         }
     }
 
     private fun handleChatMinorChanged(event: LongPollParsedEvent.ChatMinorChanged) {
-        val newConvos = convosFlow.value.toMutableList()
+        val newConvos = convos.toMutableList()
         val convoIndex =
             newConvos.indexOfFirstOrNull { it.id == event.peerId }
 
@@ -590,13 +600,13 @@ class ConvosViewModel(
             newConvos[convoIndex] =
                 newConvos[convoIndex].copy(minorId = event.minorId)
 
-            convos.setValue { newConvos.sorted() }
+            replaceConvos(newConvos.sorted())
             syncUiConvos()
         }
     }
 
     private fun handleChatClearing(event: LongPollParsedEvent.ChatCleared) {
-        val newConvos = convosFlow.value.toMutableList()
+        val newConvos = convos.toMutableList()
 
         val convoIndex = newConvos.indexOfFirstOrNull { it.id == event.peerId }
 
@@ -605,7 +615,7 @@ class ConvosViewModel(
         } else {
             newConvos.removeAt(convoIndex)
 
-            convos.setValue { newConvos.sorted() }
+            replaceConvos(newConvos.sorted())
             syncUiConvos()
         }
     }
@@ -613,7 +623,7 @@ class ConvosViewModel(
     private fun handleChatArchived(event: LongPollParsedEvent.ChatArchived) {
         val convo = event.convo
 
-        val newConvos = convosFlow.value.toMutableList()
+        val newConvos = convos.toMutableList()
 
         when (filter) {
             ConvosFilter.BUSINESS_NOTIFY -> Unit
@@ -628,7 +638,7 @@ class ConvosViewModel(
                     newConvos.removeAt(index)
                 }
 
-                convos.update { newConvos }
+                replaceConvos(newConvos)
                 syncUiConvos()
             }
 
@@ -639,10 +649,10 @@ class ConvosViewModel(
 
                     newConvos.removeAt(index)
                 } else {
-                    newConvos.add(pinnedConvosCount.value, convo)
+                    newConvos.add(pinnedConvosCount, convo)
                 }
 
-                convos.update { newConvos.sorted() }
+                replaceConvos(newConvos.sorted())
                 syncUiConvos()
             }
         }
@@ -656,7 +666,7 @@ class ConvosViewModel(
             state.processState(
                 error = {},
                 success = {
-                    val newConvos = convosFlow.value.toMutableList()
+                    val newConvos = convos.toMutableList()
                     val convoIndex =
                         newConvos.indexOfFirstOrNull { it.id == peerId }
                             ?: return@listenValue
@@ -664,7 +674,7 @@ class ConvosViewModel(
                     newConvos[convoIndex] =
                         newConvos[convoIndex].copy(inRead = startMessageId)
 
-                    convos.update { newConvos }
+                    replaceConvos(newConvos)
                     syncUiConvos()
                 }
             )
@@ -696,47 +706,44 @@ class ConvosViewModel(
     }
 
     private fun syncUiConvos(): List<UiConvo> {
-        val convos = convosFlow.value
-
         val newUiConvos = convos.map { convo ->
-            val options = mutableListOf<ConvoOption>()
+            val options: ImmutableList<ConvoOption> = buildImmutableList {
-            convo.lastMessage?.run {
+                if (!convo.isRead() && convo.lastMessage != null && convo.lastMessage?.isOut == false) {
-                if (!convo.isRead() && !this.isOut) {
+                    add(ConvoOption.MarkAsRead)
-                    options += ConvoOption.MarkAsRead
                 }
-            }
-
-            val convosSize = this.convosFlow.value.size
-            val pinnedCount = pinnedConvosCount.value
-
-            val canPinOneMoreDialog =
-                convosSize > 4 && pinnedCount < 5 && !convo.isPinned()
 
                 if (convo.isPinned()) {
-                options += ConvoOption.Unpin
+                    add(ConvoOption.Unpin)
-            } else if (canPinOneMoreDialog) {
+                }
-                options += ConvoOption.Pin
+
+                if (convos.size > 4 && pinnedConvosCount < 5 && !convo.isPinned()) {
+                    add(ConvoOption.Pin)
                 }
 
                 when (filter) {
-                ConvosFilter.ARCHIVE -> ConvoOption.Unarchive
+                    ConvosFilter.BUSINESS_NOTIFY -> Unit
+                    ConvosFilter.ARCHIVE -> add(ConvoOption.Unarchive)
 
-                ConvosFilter.UNREAD,
+                    ConvosFilter.ALL,
-                ConvosFilter.ALL -> ConvoOption.Archive
+                    ConvosFilter.UNREAD -> {
+                        if (convo.id != UserConfig.userId) {
+                            add(ConvoOption.Archive)
+                        }
+                    }
+                }
 
-                ConvosFilter.BUSINESS_NOTIFY -> null
+                add(ConvoOption.Delete)
-            }?.let(options::add)
+            }
-
-            options += ConvoOption.Delete
 
             convo.asPresentation(
                 resources = resources,
-                useContactName = useContactNames,
+                useContactName = userSettings.useContactNames.value,
-                isExpanded = expandedConvoId.value == convo.id,
+                isExpanded = screenState.value.expandedConvoId == convo.id,
-                options = options.toImmutableList()
+                options = options
             )
         }
-        uiConvos.setValue { newUiConvos }
+
+        screenState.updateValue { copy(convos = newUiConvos.toImmutableList()) }
 
         return newUiConvos
     }

feature/convos/src/main/kotlin/dev/meloda/fast/convos/model/ConvoDialog.kt

@@ -4,9 +4,9 @@ import androidx.compose.runtime.Immutable
 
 @Immutable
 sealed class ConvoDialog {
-    data class ConvoPin(val convoId: Long) : ConvoDialog()
+    data object Pin : ConvoDialog()
-    data class ConvoUnpin(val convoId: Long) : ConvoDialog()
+    data object Unpin : ConvoDialog()
-    data class ConvoDelete(val convoId: Long) : ConvoDialog()
+    data object Delete : ConvoDialog()
-    data class ConvoArchive(val convoId: Long) : ConvoDialog()
+    data object Archive : ConvoDialog()
-    data class ConvoUnarchive(val convoId: Long) : ConvoDialog()
+    data object Unarchive : ConvoDialog()
 }

feature/convos/src/main/kotlin/dev/meloda/fast/convos/model/ConvoIntent.kt

@@ -0,0 +1,29 @@
+package dev.meloda.fast.convos.model
+
+import android.os.Bundle
+import dev.meloda.fast.ui.model.vk.ConvoOption
+
+sealed class ConvoIntent {
+    data class ItemClick(val convoId: Long) : ConvoIntent()
+    data class ItemLongClick(val convoId: Long) : ConvoIntent()
+    data class OptionItemClick(val option: ConvoOption) : ConvoIntent()
+    data object PaginationConditionsMet : ConvoIntent()
+
+    data object Back : ConvoIntent()
+    data object Refresh : ConvoIntent()
+    data object CreateChatClick : ConvoIntent()
+    data object ArchiveClick : ConvoIntent()
+
+    data class SetScrollIndex(val index: Int) : ConvoIntent()
+    data class SetScrollOffset(val offset: Int) : ConvoIntent()
+
+    data object ErrorActionButtonClick : ConvoIntent()
+
+    data object ConsumeScrollToTop : ConvoIntent()
+
+    sealed class Dialog : ConvoIntent() {
+        data object Dismiss : Dialog()
+        data class Confirm(val bundle: Bundle? = null) : Dialog()
+        data class Cancel(val bundle: Bundle? = null) : Dialog()
+    }
+}

feature/convos/src/main/kotlin/dev/meloda/fast/convos/model/ConvoNavigation.kt

@@ -1,11 +0,0 @@
-package dev.meloda.fast.convos.model
-
-import androidx.compose.runtime.Immutable
-
-@Immutable
-sealed class ConvoNavigation {
-
-    data class MessagesHistory(val peerId: Long) : ConvoNavigation()
-
-    data object CreateChat : ConvoNavigation()
-}

feature/convos/src/main/kotlin/dev/meloda/fast/convos/model/ConvoNavigationIntent.kt

@@ -0,0 +1,9 @@
+package dev.meloda.fast.convos.model
+
+sealed class ConvoNavigationIntent {
+
+    data object Back : ConvoNavigationIntent()
+    data class MessagesHistory(val convoId: Long) : ConvoNavigationIntent()
+    data object CreateChat : ConvoNavigationIntent()
+    data object Archive : ConvoNavigationIntent()
+}

feature/convos/src/main/kotlin/dev/meloda/fast/convos/model/ConvosScreenState.kt

@@ -1,6 +1,10 @@
 package dev.meloda.fast.convos.model
 
 import androidx.compose.runtime.Immutable
+import dev.meloda.fast.model.BaseError
+import dev.meloda.fast.ui.model.vk.UiConvo
+import dev.meloda.fast.ui.util.ImmutableList
+import dev.meloda.fast.ui.util.emptyImmutableList
 
 @Immutable
 data class ConvosScreenState(
@@ -10,7 +14,13 @@ data class ConvosScreenState(
     val profileImageUrl: String?,
     val scrollIndex: Int,
     val scrollOffset: Int,
-    val isArchive: Boolean
+    val canPaginate: Boolean,
+    val expandedConvoId: Long?,
+    val convos: ImmutableList<UiConvo>,
+    val dialog: ConvoDialog?,
+
+    // TODO: 30.05.2026, Danil Nikolaev: remove
+    val error: BaseError?
 ) {
 
     companion object {
@@ -21,7 +31,11 @@ data class ConvosScreenState(
             profileImageUrl = null,
             scrollIndex = 0,
             scrollOffset = 0,
-            isArchive = false
+            canPaginate = false,
+            expandedConvoId = null,
+            convos = emptyImmutableList(),
+            dialog = null,
+            error = null
         )
     }
 }

feature/convos/src/main/kotlin/dev/meloda/fast/convos/navigation/ConvosNavigation.kt

@@ -1,12 +1,16 @@
 package dev.meloda.fast.convos.navigation
 
 import androidx.appcompat.app.AppCompatActivity
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.navigation.NavGraphBuilder
 import androidx.navigation.compose.composable
 import androidx.navigation.navigation
 import dev.meloda.fast.convos.ConvosViewModel
+import dev.meloda.fast.convos.model.ConvoNavigationIntent
 import dev.meloda.fast.convos.presentation.ConvosRoute
-import dev.meloda.fast.model.BaseError
 import dev.meloda.fast.model.ConvosFilter
 import dev.meloda.fast.ui.extensions.getOrThrow
 import dev.meloda.fast.ui.theme.LocalNavController
@@ -24,44 +28,56 @@ object Convos
 object Archive
 
 fun NavGraphBuilder.convosGraph(
+    handleNavigationIntent: (ConvoNavigationIntent) -> Unit,
     activity: AppCompatActivity,
-    onError: (BaseError) -> Unit,
-    onNavigateToMessagesHistory: (id: Long) -> Unit,
-    onNavigateToCreateChat: () -> Unit,
-    onScrolledToTop: () -> Unit
 ) {
     navigation<ConvoGraph>(
         startDestination = Convos
     ) {
-        val convosViewModel: ConvosViewModel = with(activity) {
-            getViewModel(qualifier = named(ConvosFilter.ALL))
-        }
         composable<Convos> {
-            val navController = LocalNavController.getOrThrow()
+            ConvosRootRoute(
-
+                handleNavigationIntent = handleNavigationIntent,
-            ConvosRoute(
+                viewModel = with(activity) {
-                viewModel = convosViewModel,
+                    getViewModel(named(ConvosFilter.ALL))
-                onError = onError,
+                }
-                onNavigateToMessagesHistory = onNavigateToMessagesHistory,
-                onNavigateToCreateChat = onNavigateToCreateChat,
-                onNavigateToArchive = { navController.navigate(Archive) },
-                onScrolledToTop = onScrolledToTop
             )
         }
         composable<Archive> {
-            val navController = LocalNavController.getOrThrow()
+            ConvosRootRoute(
-
+                handleNavigationIntent = handleNavigationIntent,
-            ConvosRoute(
                 viewModel = with(activity) {
-                    getViewModel<ConvosViewModel>(
+                    getViewModel<ConvosViewModel>(named(ConvosFilter.ARCHIVE))
-                        qualifier = named(ConvosFilter.ARCHIVE)
+                }
-                    )
-                },
-                onBack = navController::navigateUp,
-                onError = onError,
-                onNavigateToMessagesHistory = onNavigateToMessagesHistory,
-                onScrolledToTop = onScrolledToTop
             )
         }
     }
 }
+
+@Composable
+private fun ConvosRootRoute(
+    handleNavigationIntent: (ConvoNavigationIntent) -> Unit,
+    viewModel: ConvosViewModel
+) {
+    val navController = LocalNavController.getOrThrow()
+
+    val screenState by viewModel.screenStateFlow.collectAsStateWithLifecycle()
+    val navigationIntent by viewModel.navigationIntentFlow.collectAsStateWithLifecycle()
+
+    LaunchedEffect(navigationIntent) {
+        navigationIntent?.let {
+            when (navigationIntent) {
+                ConvoNavigationIntent.Back -> navController.navigateUp()
+                ConvoNavigationIntent.Archive -> navController.navigate(Archive)
+                else -> handleNavigationIntent(it)
+            }
+
+            viewModel.onNavigationConsumed()
+        }
+    }
+
+    ConvosRoute(
+        handleIntent = viewModel::handleIntent,
+        screenState = screenState,
+        isArchive = viewModel.filter == ConvosFilter.ARCHIVE,
+    )
+}

feature/convos/src/main/kotlin/dev/meloda/fast/convos/presentation/ConvoDialogs.kt

@@ -1,82 +1,78 @@
 package dev.meloda.fast.convos.presentation
 
-import android.os.Bundle
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.res.vectorResource
-import androidx.core.os.bundleOf
 import dev.meloda.fast.convos.model.ConvoDialog
+import dev.meloda.fast.convos.model.ConvoIntent
 import dev.meloda.fast.convos.model.ConvosScreenState
 import dev.meloda.fast.ui.R
 import dev.meloda.fast.ui.components.MaterialDialog
 
 @Composable
 fun HandleDialogs(
+    handleIntent: (ConvoIntent) -> Unit,
     screenState: ConvosScreenState,
-    dialog: ConvoDialog?,
-    onConfirmed: (ConvoDialog, Bundle) -> Unit = { _, _ -> },
-    onDismissed: (ConvoDialog) -> Unit = {},
-    onItemPicked: (ConvoDialog, Bundle) -> Unit = { _, _ -> }
 ) {
-    when (dialog) {
+    when (screenState.dialog) {
         null -> Unit
 
-        is ConvoDialog.ConvoArchive -> {
+        is ConvoDialog.Archive -> {
             MaterialDialog(
-                onDismissRequest = { onDismissed(dialog) },
+                onDismissRequest = { handleIntent(ConvoIntent.Dialog.Dismiss) },
                 title = stringResource(id = R.string.confirm_archive_convo),
-                confirmAction = { onConfirmed(dialog, bundleOf()) },
+                confirmAction = { handleIntent(ConvoIntent.Dialog.Confirm()) },
                 confirmText = stringResource(id = R.string.action_archive),
                 cancelText = stringResource(id = R.string.cancel),
                 icon = ImageVector.vectorResource(R.drawable.ic_archive_fill_round_24)
             )
         }
 
-        is ConvoDialog.ConvoUnarchive -> {
+        is ConvoDialog.Unarchive -> {
             MaterialDialog(
-                onDismissRequest = { onDismissed(dialog) },
+                onDismissRequest = { handleIntent(ConvoIntent.Dialog.Dismiss) },
                 title = stringResource(id = R.string.confirm_unarchive_convo),
-                confirmAction = { onConfirmed(dialog, bundleOf()) },
+                confirmAction = { handleIntent(ConvoIntent.Dialog.Confirm()) },
                 confirmText = stringResource(id = R.string.action_unarchive),
                 cancelText = stringResource(id = R.string.cancel),
                 icon = ImageVector.vectorResource(R.drawable.ic_unarchive_fill_round_24)
             )
         }
 
-        is ConvoDialog.ConvoDelete -> {
+        is ConvoDialog.Delete -> {
             val errorColor = MaterialTheme.colorScheme.error
 
             MaterialDialog(
-                onDismissRequest = { onDismissed(dialog) },
+                onDismissRequest = { handleIntent(ConvoIntent.Dialog.Dismiss) },
                 icon = ImageVector.vectorResource(R.drawable.ic_delete_fill_round_24),
                 iconTint = errorColor,
                 title = stringResource(id = R.string.confirm_delete_convo),
-                confirmAction = { onConfirmed(dialog, bundleOf()) },
+                confirmAction = { handleIntent(ConvoIntent.Dialog.Confirm()) },
                 confirmText = stringResource(id = R.string.action_delete),
                 confirmContainerColor = errorColor,
                 cancelText = stringResource(id = R.string.cancel),
             )
         }
 
-        is ConvoDialog.ConvoPin -> {
+        is ConvoDialog.Pin -> {
             MaterialDialog(
-                onDismissRequest = { onDismissed(dialog) },
+                onDismissRequest = { handleIntent(ConvoIntent.Dialog.Dismiss) },
                 icon = ImageVector.vectorResource(R.drawable.ic_keep_fill_round_24),
                 title = stringResource(id = R.string.confirm_pin_convo),
-                confirmAction = { onConfirmed(dialog, bundleOf()) },
+                confirmAction = { handleIntent(ConvoIntent.Dialog.Confirm()) },
                 confirmText = stringResource(id = R.string.action_pin),
                 cancelText = stringResource(id = R.string.cancel),
             )
         }
 
-        is ConvoDialog.ConvoUnpin -> {
+        is ConvoDialog.Unpin -> {
             MaterialDialog(
-                onDismissRequest = { onDismissed(dialog) },
+                onDismissRequest = { handleIntent(ConvoIntent.Dialog.Dismiss) },
                 icon = ImageVector.vectorResource(R.drawable.ic_keep_off_fill_round_24),
                 title = stringResource(id = R.string.confirm_unpin_convo),
-                confirmAction = { onConfirmed(dialog, bundleOf()) },
+                confirmAction = { handleIntent(ConvoIntent.Dialog.Confirm()) },
                 confirmText = stringResource(id = R.string.action_unpin),
                 cancelText = stringResource(id = R.string.cancel),
             )

feature/convos/src/main/kotlin/dev/meloda/fast/convos/presentation/ConvoItem.kt

@@ -62,9 +62,9 @@ val BirthdayColor = Color(0xffb00b69)
 @OptIn(ExperimentalFoundationApi::class)
 @Composable
 fun ConvoItem(
-    onItemClick: (UiConvo) -> Unit,
+    onItemClick: (convoId: Long) -> Unit,
-    onItemLongClick: (convo: UiConvo) -> Unit,
+    onItemLongClick: (convoId: Long) -> Unit,
-    onOptionClicked: (UiConvo, ConvoOption) -> Unit,
+    onOptionClicked: (ConvoOption) -> Unit,
     maxLines: Int,
     isUserAccount: Boolean,
     convo: UiConvo,
@@ -81,9 +81,9 @@ fun ConvoItem(
         modifier = modifier
             .fillMaxWidth()
             .combinedClickable(
-                onClick = { onItemClick(convo) },
+                onClick = { onItemClick(convo.id) },
                 onLongClick = {
-                    onItemLongClick(convo)
+                    onItemLongClick(convo.id)
                     hapticFeedback.performHapticFeedback(HapticFeedbackType.LongPress)
                 }
             )
@@ -281,7 +281,7 @@ fun ConvoItem(
                                         val builder =
                                             AnnotatedString.Builder(convo.message.text)
 
-                                        convo.message.spanStyles.map { spanStyleRange ->
+                                        convo.message.spanStyles.forEach { spanStyleRange ->
                                             val updatedSpanStyle =
                                                 if (spanStyleRange.item.color == Color.Red) {
                                                     spanStyleRange.item.copy(color = MaterialTheme.colorScheme.primary)
@@ -378,7 +378,7 @@ fun ConvoItem(
                             }
 
                             ElevatedAssistChip(
-                                onClick = { onOptionClicked(convo, option) },
+                                onClick = { onOptionClicked(option) },
                                 leadingIcon = {
                                     option.icon.getResourcePainter()?.let { painter ->
                                         Icon(

feature/convos/src/main/kotlin/dev/meloda/fast/convos/presentation/ConvosList.kt

@@ -36,12 +36,12 @@ import kotlinx.coroutines.launch
 fun ConvosList(
     modifier: Modifier = Modifier,
     convos: ImmutableList<UiConvo>,
-    onConvosClick: (UiConvo) -> Unit,
+    onConvosClick: (Long) -> Unit,
-    onConvosLongClick: (UiConvo) -> Unit,
+    onConvosLongClick: (Long) -> Unit,
     screenState: ConvosScreenState,
     state: LazyListState,
     maxLines: Int,
-    onOptionClicked: (UiConvo, ConvoOption) -> Unit,
+    onOptionClicked: (ConvoOption) -> Unit,
     padding: PaddingValues
 ) {
     val theme = LocalThemeConfig.current

feature/convos/src/main/kotlin/dev/meloda/fast/convos/presentation/ConvosRoute.kt

@@ -1,79 +1,23 @@
 package dev.meloda.fast.convos.presentation
 
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
+import dev.meloda.fast.convos.model.ConvoIntent
-import androidx.compose.runtime.getValue
+import dev.meloda.fast.convos.model.ConvosScreenState
-import androidx.lifecycle.compose.collectAsStateWithLifecycle
-import dev.meloda.fast.convos.ConvosViewModel
-import dev.meloda.fast.convos.model.ConvoNavigation
-import dev.meloda.fast.model.BaseError
-import dev.meloda.fast.ui.util.ImmutableList.Companion.toImmutableList
 
 @Composable
 fun ConvosRoute(
-    viewModel: ConvosViewModel,
+    handleIntent: (ConvoIntent) -> Unit,
-    onBack: (() -> Unit)? = null,
+    screenState: ConvosScreenState,
-    onError: (BaseError) -> Unit,
+    isArchive: Boolean,
-    onNavigateToMessagesHistory: (convoId: Long) -> Unit,
-    onNavigateToCreateChat: (() -> Unit)? = null,
-    onNavigateToArchive: (() -> Unit)? = null,
-    onScrolledToTop: () -> Unit,
 ) {
-    val screenState by viewModel.screenStateFlow.collectAsStateWithLifecycle()
-    val navigationEvent by viewModel.navigationFlow.collectAsStateWithLifecycle()
-    val convos by viewModel.uiConvosFlow.collectAsStateWithLifecycle()
-    val dialog by viewModel.dialogFlow.collectAsStateWithLifecycle()
-    val baseError by viewModel.baseErrorFlow.collectAsStateWithLifecycle()
-    val canPaginate by viewModel.canPaginateFlow.collectAsStateWithLifecycle()
-
-    LaunchedEffect(navigationEvent) {
-        val shouldBeConsumed: Boolean = when (val navigation = navigationEvent) {
-            null -> false
-
-            is ConvoNavigation.CreateChat -> {
-                onNavigateToCreateChat?.invoke()
-                true
-            }
-
-            is ConvoNavigation.MessagesHistory -> {
-                onNavigateToMessagesHistory(navigation.peerId)
-                true
-            }
-        }
-
-        if (shouldBeConsumed) viewModel.onNavigationConsumed()
-    }
-
     ConvosScreen(
-        onBack = { onBack?.invoke() },
+        handleIntent = handleIntent,
         screenState = screenState,
-        convos = convos.toImmutableList(),
+        isArchive = isArchive,
-        baseError = baseError,
-        canPaginate = canPaginate,
-        onConvoItemClicked = viewModel::onConvoItemClick,
-        onConvoItemLongClicked = viewModel::onConvoItemLongClick,
-        onOptionClicked = viewModel::onOptionClicked,
-        onPaginationConditionsMet = viewModel::onPaginationConditionsMet,
-        onRefresh = viewModel::onRefresh,
-        onCreateChatButtonClicked = viewModel::onCreateChatButtonClicked,
-        onArchiveActionClicked = { onNavigateToArchive?.invoke() },
-        setScrollIndex = viewModel::setScrollIndex,
-        setScrollOffset = viewModel::setScrollOffset,
-        onConsumeReselection = onScrolledToTop,
-        onErrorViewButtonClicked = {
-            if (baseError in listOf(BaseError.AccountBlocked, BaseError.SessionExpired)) {
-                onError(requireNotNull(baseError))
-            } else {
-                viewModel.onErrorButtonClicked()
-            }
-        }
     )
 
     HandleDialogs(
+        handleIntent = handleIntent,
         screenState = screenState,
-        dialog = dialog,
-        onConfirmed = viewModel::onDialogConfirmed,
-        onDismissed = viewModel::onDialogDismissed,
-        onItemPicked = viewModel::onDialogItemPicked
     )
 }

feature/convos/src/main/kotlin/dev/meloda/fast/convos/presentation/ConvosScreen.kt

@@ -56,25 +56,20 @@ import dev.chrisbanes.haze.hazeEffect
 import dev.chrisbanes.haze.hazeSource
 import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
 import dev.chrisbanes.haze.materials.HazeMaterials
+import dev.meloda.fast.convos.model.ConvoIntent
 import dev.meloda.fast.convos.model.ConvosScreenState
 import dev.meloda.fast.convos.navigation.ConvoGraph
 import dev.meloda.fast.datastore.AppSettings
-import dev.meloda.fast.model.BaseError
 import dev.meloda.fast.ui.R
 import dev.meloda.fast.ui.components.FullScreenContainedLoader
 import dev.meloda.fast.ui.components.NoItemsView
 import dev.meloda.fast.ui.components.SegmentedButtonItem
 import dev.meloda.fast.ui.components.SegmentedButtonsRow
-import dev.meloda.fast.ui.components.VkErrorView
-import dev.meloda.fast.ui.model.vk.ConvoOption
-import dev.meloda.fast.ui.model.vk.UiConvo
 import dev.meloda.fast.ui.theme.LocalBottomPadding
 import dev.meloda.fast.ui.theme.LocalHazeState
 import dev.meloda.fast.ui.theme.LocalReselectedTab
 import dev.meloda.fast.ui.theme.LocalThemeConfig
-import dev.meloda.fast.ui.util.ImmutableList
 import dev.meloda.fast.ui.util.buildImmutableList
-import dev.meloda.fast.ui.util.emptyImmutableList
 import dev.meloda.fast.ui.util.isScrollingUp
 import kotlinx.coroutines.flow.collectLatest
 import kotlinx.coroutines.flow.debounce
@@ -82,26 +77,14 @@ import kotlin.time.Duration.Companion.milliseconds
 
 @OptIn(
     ExperimentalMaterial3Api::class,
-    ExperimentalHazeMaterialsApi::class, ExperimentalMaterial3ExpressiveApi::class,
+    ExperimentalHazeMaterialsApi::class,
+    ExperimentalMaterial3ExpressiveApi::class,
 )
 @Composable
 fun ConvosScreen(
-    screenState: ConvosScreenState = ConvosScreenState.EMPTY,
+    handleIntent: (ConvoIntent) -> Unit,
-    convos: ImmutableList<UiConvo> = emptyImmutableList(),
+    screenState: ConvosScreenState,
-    baseError: BaseError? = null,
+    isArchive: Boolean,
-    canPaginate: Boolean = false,
-    onBack: () -> Unit = {},
-    onConvoItemClicked: (convo: UiConvo) -> Unit = {},
-    onConvoItemLongClicked: (convo: UiConvo) -> Unit = {},
-    onOptionClicked: (UiConvo, ConvoOption) -> Unit = { _, _ -> },
-    onPaginationConditionsMet: () -> Unit = {},
-    onRefresh: () -> Unit = {},
-    onCreateChatButtonClicked: () -> Unit = {},
-    onArchiveActionClicked: () -> Unit = {},
-    setScrollIndex: (Int) -> Unit = {},
-    setScrollOffset: (Int) -> Unit = {},
-    onConsumeReselection: () -> Unit = {},
-    onErrorViewButtonClicked: () -> Unit = {}
 ) {
     val currentTheme = LocalThemeConfig.current
     val maxLines = if (currentTheme.enableMultiline) 2 else 1
@@ -114,14 +97,14 @@ fun ConvosScreen(
     val currentTabReselected = LocalReselectedTab.current[ConvoGraph] == true
     LaunchedEffect(currentTabReselected) {
         if (currentTabReselected) {
-            if (screenState.isArchive) {
+            if (isArchive) {
-                onBack.invoke()
+                handleIntent(ConvoIntent.Back)
             } else {
                 if (listState.firstVisibleItemIndex > 14) {
                     listState.scrollToItem(14)
                 }
                 listState.animateScrollToItem(0)
-                onConsumeReselection()
+                handleIntent(ConvoIntent.ConsumeScrollToTop)
             }
         }
     }
@@ -129,18 +112,18 @@ fun ConvosScreen(
     LaunchedEffect(listState) {
         snapshotFlow { listState.firstVisibleItemIndex }
             .debounce(500L.milliseconds)
-            .collectLatest(setScrollIndex)
+            .collectLatest { handleIntent(ConvoIntent.SetScrollIndex(it)) }
     }
 
     LaunchedEffect(listState) {
         snapshotFlow { listState.firstVisibleItemScrollOffset }
             .debounce(500L.milliseconds)
-            .collectLatest(setScrollOffset)
+            .collectLatest { handleIntent(ConvoIntent.SetScrollOffset(it)) }
     }
 
-    val paginationConditionMet by remember(canPaginate, listState) {
+    val paginationConditionMet by remember(screenState.canPaginate, listState) {
         derivedStateOf {
-            canPaginate &&
+            screenState.canPaginate &&
                     (listState.layoutInfo.visibleItemsInfo.lastOrNull()?.index
                         ?: -9) >= (listState.layoutInfo.totalItemsCount - 6)
         }
@@ -148,7 +131,7 @@ fun ConvosScreen(
 
     LaunchedEffect(paginationConditionMet) {
         if (paginationConditionMet && !screenState.isPaginating) {
-            onPaginationConditionsMet()
+            handleIntent(ConvoIntent.PaginationConditionsMet)
         }
     }
 
@@ -183,7 +166,7 @@ fun ConvosScreen(
                             text = stringResource(
                                 id = when {
                                     screenState.isLoading -> R.string.title_loading
-                                    screenState.isArchive -> R.string.title_archive
+                                    isArchive -> R.string.title_archive
                                     else -> R.string.title_convos
                                 }
                             ),
@@ -193,8 +176,8 @@ fun ConvosScreen(
                         )
                     },
                     navigationIcon = {
-                        if (screenState.isArchive) {
+                        if (isArchive) {
-                            IconButton(onClick = onBack) {
+                            IconButton(onClick = { handleIntent(ConvoIntent.Back) }) {
                                 Icon(
                                     painter = painterResource(R.drawable.ic_arrow_back_round_24),
                                     contentDescription = null
@@ -206,7 +189,7 @@ fun ConvosScreen(
                         val dropDownItems: List<@Composable () -> Unit> = buildList {}
 
                         val items = buildImmutableList {
-                            if (!screenState.isArchive) {
+                            if (!isArchive) {
                                 add(SegmentedButtonItem("archive", R.drawable.ic_archive_round_24))
                             }
 
@@ -225,8 +208,8 @@ fun ConvosScreen(
                             items = items,
                             onClick = { index ->
                                 when (items[index].key) {
-                                    "archive" -> onArchiveActionClicked()
+                                    "archive" -> handleIntent(ConvoIntent.ArchiveClick)
-                                    "refresh" -> onRefresh()
+                                    "refresh" -> handleIntent(ConvoIntent.Refresh)
                                     "more" -> dropDownMenuExpanded = true
 
                                     else -> Unit
@@ -263,7 +246,7 @@ fun ConvosScreen(
                 )
 
                 val showHorizontalProgressBar by remember(screenState) {
-                    derivedStateOf { screenState.isLoading && convos.isNotEmpty() }
+                    derivedStateOf { screenState.isLoading && screenState.convos.isNotEmpty() }
                 }
                 AnimatedVisibility(showHorizontalProgressBar) {
                     LinearProgressIndicator(modifier = Modifier.fillMaxWidth())
@@ -274,14 +257,14 @@ fun ConvosScreen(
             }
         },
         floatingActionButton = {
-            if (!screenState.isArchive) {
+            if (!isArchive) {
                 val offsetY by animateIntAsState(
                     targetValue = if (listState.isScrollingUp()) 0 else 600
                 )
 
                 Column {
                     FloatingActionButton(
-                        onClick = onCreateChatButtonClicked,
+                        onClick = { handleIntent(ConvoIntent.CreateChatClick) },
                         modifier = Modifier.offset {
                             IntOffset(0, offsetY)
                         }
@@ -298,14 +281,15 @@ fun ConvosScreen(
         }
     ) { padding ->
         when {
-            baseError != null -> {
+            // TODO: 30.05.2026, Danil Nikolaev: move to UI State
-                VkErrorView(
+//            baseError != null -> {
-                    baseError = baseError,
+//                VkErrorView(
-                    onButtonClick = onErrorViewButtonClicked
+//                    baseError = baseError,
-                )
+//                    onButtonClick = onErrorViewButtonClicked
-            }
+//                )
+//            }
 
-            screenState.isLoading && convos.isEmpty() -> FullScreenContainedLoader()
+            screenState.isLoading && screenState.convos.isEmpty() -> FullScreenContainedLoader()
 
             else -> {
                 val pullToRefreshState = rememberPullToRefreshState()
@@ -318,7 +302,7 @@ fun ConvosScreen(
                         .padding(bottom = padding.calculateBottomPadding()),
                     state = pullToRefreshState,
                     isRefreshing = screenState.isLoading,
-                    onRefresh = onRefresh,
+                    onRefresh = { handleIntent(ConvoIntent.Refresh) },
                     indicator = {
                         PullToRefreshDefaults.Indicator(
                             state = pullToRefreshState,
@@ -330,9 +314,9 @@ fun ConvosScreen(
                     }
                 ) {
                     ConvosList(
-                        convos = convos,
+                        convos = screenState.convos,
-                        onConvosClick = onConvoItemClicked,
+                        onConvosClick = { handleIntent(ConvoIntent.ItemClick(it)) },
-                        onConvosLongClick = onConvoItemLongClicked,
+                        onConvosLongClick = { handleIntent(ConvoIntent.ItemLongClick(it)) },
                         screenState = screenState,
                         state = listState,
                         maxLines = maxLines,
@@ -341,14 +325,14 @@ fun ConvosScreen(
                         } else {
                             Modifier
                         }.fillMaxSize(),
-                        onOptionClicked = onOptionClicked,
+                        onOptionClicked = { handleIntent(ConvoIntent.OptionItemClick(it)) },
                         padding = padding
                     )
 
-                    if (convos.isEmpty()) {
+                    if (screenState.convos.isEmpty()) {
                         NoItemsView(
                             buttonText = stringResource(R.string.action_refresh),
-                            onButtonClick = onRefresh
+                            onButtonClick = { handleIntent(ConvoIntent.Refresh) }
                         )
                     }
                 }