a lot of improvements for long polling service and notifications

feature/auth/login/src/main/kotlin/com/meloda/fast/auth/login/LoginViewModel.kt

@@ -13,13 +13,16 @@ import com.meloda.app.fast.data.State
 import com.meloda.app.fast.data.api.users.UsersUseCase
 import com.meloda.app.fast.data.db.AccountsRepository
 import com.meloda.app.fast.data.processState
+import com.meloda.app.fast.datastore.SettingsController
+import com.meloda.app.fast.datastore.UserSettings
+import com.meloda.app.fast.datastore.model.LongPollState
 import com.meloda.app.fast.model.database.AccountEntity
 import com.meloda.app.fast.network.OAuthErrorDomain
 import com.meloda.fast.auth.login.model.CaptchaArguments
 import com.meloda.fast.auth.login.model.LoginError
 import com.meloda.fast.auth.login.model.LoginScreenState
-import com.meloda.fast.auth.login.model.LoginValidationArguments
 import com.meloda.fast.auth.login.model.LoginUserBannedArguments
+import com.meloda.fast.auth.login.model.LoginValidationArguments
 import com.meloda.fast.auth.login.model.LoginValidationResult
 import com.meloda.fast.auth.login.validation.LoginValidator
 import kotlinx.coroutines.Dispatchers
@@ -67,7 +70,8 @@ class LoginViewModelImpl(
     private val oAuthUseCase: OAuthUseCase,
     private val usersUseCase: UsersUseCase,
     private val accountsRepository: AccountsRepository,
-    private val loginValidator: LoginValidator
+    private val loginValidator: LoginValidator,
+    private val userSettings: UserSettings
 ) : ViewModel(), LoginViewModel {
 
     override val screenState = MutableStateFlow(LoginScreenState.EMPTY)
@@ -155,6 +159,8 @@ class LoginViewModelImpl(
             UserConfig.trustedHash = account.trustedHash
         }
 
+        startLongPoll()
+
         usersUseCase.get(
             userIds = null,
             fields = VkConstants.USER_FIELDS,
@@ -238,6 +244,8 @@ class LoginViewModelImpl(
                         UserConfig.trustedHash = account.trustedHash
                     }
 
+                    startLongPoll()
+
                     accountsRepository.storeAccounts(listOf(currentAccount))
 
                     captchaArguments.update { null }
@@ -338,4 +346,14 @@ class LoginViewModelImpl(
             }
         }
     }
+
+    private fun startLongPoll() {
+        userSettings.setLongPollStateToApply(
+            if (SettingsController.isLongPollInBackgroundEnabled) {
+                LongPollState.Background
+            } else {
+                LongPollState.InApp
+            }
+        )
+    }
 }

feature/conversations/src/main/kotlin/com/meloda/app/fast/conversations/presentation/ConversationsScreen.kt

@@ -19,7 +19,6 @@ import androidx.compose.foundation.layout.defaultMinSize
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBarsPadding
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.lazy.LazyListState
@@ -156,17 +155,13 @@ fun ConversationsScreen(
     val view = LocalView.current
     val currentTheme = LocalTheme.current
 
-    val maxLines by remember {
-        derivedStateOf {
-            if (currentTheme.multiline) 2 else 1
-        }
+    val maxLines by remember(currentTheme) {
+        mutableIntStateOf(if (currentTheme.multiline) 2 else 1)
     }
 
     val listState = rememberLazyListState()
 
-    val isListScrollingUp = listState.isScrollingUp()
-
-    val paginationConditionMet by remember {
+    val paginationConditionMet by remember(canPaginate, listState) {
         derivedStateOf {
             canPaginate &&
                     (listState.layoutInfo.visibleItemsInfo.lastOrNull()?.index
@@ -292,7 +287,7 @@ fun ConversationsScreen(
 
             Column {
                 AnimatedVisibility(
-                    visible = isListScrollingUp,
+                    visible = listState.isScrollingUp(),
                     enter = slideIn { IntOffset(0, 600) } + fadeIn(tween(200)),
                     exit = slideOut { IntOffset(0, 600) } + fadeOut(tween(200))
                 ) {
@@ -351,10 +346,7 @@ fun ConversationsScreen(
                         .nestedScroll(pullToRefreshState.nestedScrollConnection)
                 ) {
                     ConversationsListComposable(
-                        onConversationsClick = { id ->
-                            onConversationItemClicked(id)
-
-                        },
+                        onConversationsClick = onConversationItemClicked,
                         onConversationsLongClick = onConversationItemLongClicked,
                         screenState = screenState,
                         state = listState,

feature/settings/src/main/kotlin/com/meloda/app/fast/settings/SettingsViewModel.kt

@@ -14,6 +14,7 @@ import com.meloda.app.fast.datastore.SettingsController
 import com.meloda.app.fast.datastore.SettingsKeys
 import com.meloda.app.fast.datastore.UserSettings
 import com.meloda.app.fast.datastore.isDebugSettingsShown
+import com.meloda.app.fast.datastore.model.LongPollState
 import com.meloda.app.fast.model.database.AccountEntity
 import com.meloda.app.fast.settings.model.SettingsItem
 import com.meloda.app.fast.settings.model.SettingsScreenState
@@ -161,7 +162,14 @@ class SettingsViewModelImpl(
         when (key) {
             SettingsKeys.KEY_FEATURES_LONG_POLL_IN_BACKGROUND -> {
                 val isEnabled = (newValue as? Boolean) == true
-                userSettings.setLongPollBackground(isEnabled)
+                userSettings.setLongPollStateToApply(
+                    userSettings.longPollStateToApply.value.let { state ->
+                        if (state.isLaunched()) {
+                            if (isEnabled) LongPollState.Background
+                            else LongPollState.InApp
+                        } else state
+                    }
+                )
 
                 if (isEnabled) {
                     // TODO: 26/11/2023, Danil Nikolaev: implement