shit happens

app/src/main/java/ru/megboyzz/lks/profile/ui/components/SearchComponents.kt

@@ -16,10 +16,12 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Search
 import androidx.compose.material.ripple.rememberRipple
+import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.Divider
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.FloatingActionButton
@@ -31,10 +33,13 @@ import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.derivedStateOf
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
+import androidx.compose.runtime.snapshotFlow
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
@@ -42,6 +47,8 @@ import androidx.compose.ui.graphics.Brush
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
 import ru.megboyzz.lks.profile.MainActivity
 import ru.megboyzz.lks.profile.domain.entities.LksResponse
 import ru.megboyzz.lks.profile.domain.entities.LksStudent
@@ -182,10 +189,37 @@ private fun Main() {
 fun CardsColumn(
     modifier: Modifier = Modifier,
     lksStudents: List<LksStudent>,
-    onLongPress: (LksStudent) -> Unit
+    onLongPress: (LksStudent) -> Unit,
+    onColumnOverflow: suspend () -> Unit,
 ) {
+
+    val buffer = 1
+
+    var isLoading by remember { mutableStateOf(false) }
+    val listState = rememberLazyListState()
+
+    // observe list scrolling
+    val reachedBottom: Boolean by remember {
+        derivedStateOf {
+            val lastVisibleItem = listState.layoutInfo.visibleItemsInfo.lastOrNull()
+            lastVisibleItem?.index != 0 && lastVisibleItem?.index == listState.layoutInfo.totalItemsCount - buffer
+        }
+    }
+
+    // load more if scrolled to bottom
+    LaunchedEffect(reachedBottom) {
+        if (reachedBottom) {
+            isLoading = true
+            withContext(Dispatchers.IO) {
+                onColumnOverflow()
+            }
+            isLoading = false
+        }
+    }
+
     Column(modifier) {
         LazyColumn(
+            state = listState,
             contentPadding = PaddingValues(12.dp),
             verticalArrangement = Arrangement.spacedBy(12.dp)
         ) {
@@ -195,6 +229,10 @@ fun CardsColumn(
                     onLongPress = { onLongPress(student) }
                 )
             }
+            if(isLoading)
+                item {
+                    CircularProgressIndicator()
+                }
         }
     }
 }

app/src/main/java/ru/megboyzz/lks/profile/ui/model/SearchScreenModel.kt

@@ -2,9 +2,7 @@ package ru.megboyzz.lks.profile.ui.model
 
 import cafe.adriel.voyager.core.model.ScreenModel
 import cafe.adriel.voyager.core.model.screenModelScope
-import cafe.adriel.voyager.hilt.ScreenModelFactory
-import cafe.adriel.voyager.navigator.Navigator
-import dagger.assisted.AssistedFactory
+import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
@@ -15,7 +13,6 @@ import ru.megboyzz.lks.profile.domain.DefaultCookies
 import ru.megboyzz.lks.profile.domain.entities.LksRequest
 import ru.megboyzz.lks.profile.domain.entities.LksResponse
 import ru.megboyzz.lks.profile.domain.repositories.LksRepository
-import ru.megboyzz.lks.profile.ui.HiltModule.MyFactory
 import javax.inject.Inject
 
 class SearchScreenModel @Inject constructor(
@@ -43,30 +40,47 @@ class SearchScreenModel @Inject constructor(
     val state = MutableStateFlow<UiState>(UiState.Idle)
 
     init {
-       /* _curPageNumber.onEach {
-            update()
-        }*/
-
+       _curPageNumber.onEach {
+            update(_request.value)
+        }.launchIn(CoroutineScope(Dispatchers.IO))
     }
 
     fun nextPage() = screenModelScope.launch { _curPageNumber.emit(_curPageNumber.value++) }
 
-    fun newSearch(request: LksRequest) = screenModelScope.launch(Dispatchers.IO) {
+    fun resetStudents() = screenModelScope.launch {
+        _responseList.emit(LksResponse())
+    }
+
+    fun newSearch(request: LksRequest) {
+        screenModelScope.launch(Dispatchers.IO) {
+            resetStudents()
+            update(request)
+        }
+    }
+
+    private suspend fun update(request: LksRequest)  {
 
         state.emit(UiState.Loading)
 
+        _request.emit(request)
+
         val repoCookies = lksRepository.restoreCooke()
 
         val result = lksRepository.getPage(request, repoCookies, curPageNumber.value)
 
         if(result.isFailure) {
             state.emit(UiState.Error("Ошибка :-("))
-            return@launch
+            return
         }
 
         val list = result.getOrElse { LksResponse() }
 
-        _responseList.emit(list)
+        val updatedStudents = _responseList.value.copy(
+            students = _responseList.value.students + list.students,
+            availablePages = _responseList.value.availablePages + list.availablePages
+        )
+
+        _responseList.emit(updatedStudents)
 
         state.emit(UiState.Idle)
     }

app/src/main/java/ru/megboyzz/lks/profile/ui/screens/SearchScreen.kt

@@ -1,5 +1,6 @@
 package ru.megboyzz.lks.profile.ui.screens
 
+import android.widget.Toast
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -16,6 +17,7 @@ import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.input.pointer.PointerIcon.Companion.Text
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.dp
 import cafe.adriel.voyager.core.screen.Screen
 import cafe.adriel.voyager.hilt.getScreenModel
@@ -41,6 +43,8 @@ class SearchScreen : Screen {
 
         val list by screenModel.responseList.collectAsState()
 
+        val context = LocalContext.current
+
         MainScaffold(
             onFloatingButtonClick = { bottomSheetNavigator.show(SearchBottomScreen(screenModel)) }
         ) {
@@ -52,7 +56,13 @@ class SearchScreen : Screen {
                     CardsColumn(
                         modifier = Modifier.padding(it),
                         lksStudents = list.students,
-                        onLongPress = { student ->  bottomSheetNavigator.show(LongPressMenu(student)) }
+                        onLongPress = { student ->  bottomSheetNavigator.show(LongPressMenu(student)) },
+                        onColumnOverflow = {
+                            //Toast.makeText(context, "Hello!", Toast.LENGTH_SHORT).show()
+                            screenModel.nextPage()
+                            screenModel.update(screenModel.request.value)
+                            //screenModel.nextPage()
+                        }
                     )
                 }
             }

app/src/main/java/ru/megboyzz/lks/profile/ui/screens/sub/SearchBottomScreen.kt

@@ -3,7 +3,6 @@ package ru.megboyzz.lks.profile.ui.screens.sub
 import androidx.compose.runtime.Composable
 import cafe.adriel.voyager.core.model.rememberScreenModel
 import cafe.adriel.voyager.core.screen.Screen
-import cafe.adriel.voyager.hilt.getScreenModel
 import ru.megboyzz.lks.profile.ui.components.SearchContextMenu
 import ru.megboyzz.lks.profile.ui.model.SearchScreenModel