Короче, надо будет все coroutineScope посмотреть, перенсти их в ViewModel + вроде бы доделал дезигн...

app/src/main/java/com/example/myapplication/database/entities/composeui/ReportPage.kt

@@ -31,6 +31,7 @@ import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.text.BasicTextField
 import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.AlertDialog
 import androidx.compose.material3.Button
 import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.Card
@@ -39,6 +40,7 @@ import androidx.compose.material3.DisplayMode
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
 import androidx.compose.material3.TextField
 import androidx.compose.material3.TextFieldDefaults
 import androidx.compose.material3.rememberDatePickerState
@@ -71,6 +73,7 @@ import java.io.IOException
 import java.io.OutputStream
 import java.text.ParseException
 import java.text.SimpleDateFormat
+import java.time.Year
 import java.util.Date
 import java.util.Locale
 
@@ -78,6 +81,7 @@ import java.util.Locale
 @Composable
 fun ReportPage (navController: NavController?, viewModel: ReportViewModel = viewModel(factory = AppViewModelProvider.Factory))
 {
+
     val context = LocalContext.current
 
     val coroutineScope = rememberCoroutineScope()
@@ -86,8 +90,6 @@ fun ReportPage (navController: NavController?, viewModel: ReportViewModel = view
     val startDateText = remember { mutableStateOf("") }
     val endDateText = remember { mutableStateOf("") }
 
-    // Boolean state to track the visibility of the Card
-    var cardVisible by remember { mutableStateOf(false) }
 
     Column(
         modifier = Modifier
@@ -160,19 +162,7 @@ fun ReportPage (navController: NavController?, viewModel: ReportViewModel = view
         Button(
             onClick = {
                 coroutineScope.launch {
-                    val startDate = parseDate(startDateText.value)
+                    viewModel.onButtonClick(startDateText.value, endDateText.value)
-                    val endDate = parseDate(endDateText.value)
-
-                    if (startDate != null && endDate != null) {
-                        viewModel.onUpdate(
-                            viewModel.reportPageUiState.reportDetails.copy(startDate = startDate, endDate = endDate)
-                        )
-                        viewModel.getReport()
-                        // Show the Card with animation
-                        cardVisible = true
-                    } else {
-                        // Handle parsing errors here if necessary
-                    }
                 }
             },
             modifier = Modifier
@@ -185,10 +175,33 @@ fun ReportPage (navController: NavController?, viewModel: ReportViewModel = view
             Text("Сформировать отчет")
         }
 
+        viewModel.errorState?.let { errorMessage ->
+            AlertDialog(
+                onDismissRequest = { viewModel.errorState = null },
+                title = { Text(text = "Ошибка") },
+                text = { Text(errorMessage, color = MaterialTheme.colorScheme.onBackground) },
+                buttons = {
+                    Row(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(8.dp),
+                        horizontalArrangement = Arrangement.End
+                    ) {
+                        TextButton(onClick = { viewModel.errorState = null }) {
+                            Text("Закрыть", color = MaterialTheme.colorScheme.onBackground)
+                        }
+                    }
+                },
+                modifier = Modifier.padding(16.dp),
+                backgroundColor = MaterialTheme.colorScheme.background,
+                contentColor = MaterialTheme.colorScheme.onBackground
+            )
+        }
+
         Spacer(modifier = Modifier.height(8.dp))
 
         // Use AnimatedVisibility to animate the Card visibility
-        AnimatedVisibility(visible = cardVisible) {
+        AnimatedVisibility(visible = viewModel.cardVisible) {
             Card(
                 border = BorderStroke(2.dp, MaterialTheme.colorScheme.onBackground),
                 modifier = Modifier
@@ -271,21 +284,6 @@ private fun parseDate(dateString: String): Date? {
     }
 }
 
-@Composable
-fun RowScope.TableCell(
-    text: String,
-    weight: Float
-) {
-    Text(
-        text = text,
-        Modifier
-            .border(1.dp, Color.Black)
-            .weight(weight)
-            .padding(8.dp)
-    )
-}
-
-
 @Composable
 fun TableScreen(reportData: List<ReportRemote>) {
 

app/src/main/java/com/example/myapplication/database/entities/composeui/ReportViewModel.kt

@@ -6,8 +6,11 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.setValue
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
 import com.example.myapplication.api.item.RestItemRepository
 import com.example.myapplication.api.report.ReportRemote
+import kotlinx.coroutines.launch
+import java.text.ParseException
 import java.text.SimpleDateFormat
 import java.util.Date
 import java.util.Locale
@@ -19,6 +22,11 @@ class ReportViewModel(private val itemRespository: RestItemRepository): ViewMode
     var reportResultPageUiState by mutableStateOf(ReportResultPageUiState())
         private set
 
+    var cardVisible by mutableStateOf(false)
+        private set
+
+    var errorState by mutableStateOf<String?>(null)
+
     fun onUpdate(reportDetails: ReportDetails) {
         reportPageUiState = ReportPageUiState(reportDetails = reportDetails, isEntryValid = validateInput(reportDetails))
     }
@@ -45,6 +53,44 @@ class ReportViewModel(private val itemRespository: RestItemRepository): ViewMode
     suspend fun generatePdfFile(context: Context, fileName: String, reportData: List<ReportRemote>) {
         itemRespository.createPdfFile(context, fileName, reportData)
     }
+
+    fun onButtonClick(startDate: String, endDate: String) {
+        viewModelScope.launch {
+            val parsedStartDate = parseDate(startDate)
+            val parsedEndDate = parseDate(endDate)
+
+            if (validateDates(parsedStartDate, parsedEndDate)) {
+                updateReportDetails(parsedStartDate, parsedEndDate)
+                getReport()
+                cardVisible = true
+            } else {
+                Log.d("Ошибка даты", "Неправильно указаны даты или года не являются 4-значными =${startDate}")
+                errorState = "Ошибка фильтраций: неверно указаны даты"
+            }
+        }
+    }
+
+    private fun validateDates(startDate: Date?, endDate: Date?): Boolean {
+        return startDate != null && endDate != null && startDate < endDate
+    }
+
+    private fun updateReportDetails(startDate: Date?, endDate: Date?) {
+        if (startDate != null && endDate != null) {
+            onUpdate(reportPageUiState.reportDetails.copy(startDate = startDate, endDate = endDate))
+        }
+    }
+
+    private fun parseDate(dateString: String): Date? {
+        return try {
+            // Use SimpleDateFormat or any other method to parse the string into a Date object
+            // For example:
+            SimpleDateFormat("yyyy", Locale.getDefault()).parse(dateString)
+        } catch (e: ParseException) {
+            // Handle parsing error
+            null
+        }
+    }
+
 }
 
 data class ReportDetails(