fix

app/src/main/java/ru/myitschool/work/ui/NavigationGraph.kt

@@ -9,6 +9,7 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
+import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavHostController
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
@@ -16,6 +17,7 @@ import androidx.navigation.compose.rememberNavController
 import ru.myitschool.work.auth.presentation.AuthScreen
 import ru.myitschool.work.booking.presentation.BookingScreen
 import ru.myitschool.work.user.presentation.MainScreen
+import ru.myitschool.work.user.presentation.MainViewModel
 import ru.myitschool.work.util.DataStoreManager
 
 @Composable
@@ -33,6 +35,7 @@ fun AppNavHost(
             Screen.Auth
         }
     }
+
     NavHost(
         modifier = modifier,
         enterTransition = { EnterTransition.None },
@@ -43,15 +46,39 @@ fun AppNavHost(
         composable<Screen.Auth> {
             AuthScreen(navController = navController)
         }
-        composable<Screen.Main> {
+
-            MainScreen(navController = navController)
+        composable<Screen.Main> { backStackEntry ->
+            val mainViewModel: MainViewModel = viewModel()
+
+            LaunchedEffect(navController.currentBackStackEntry) {
+                navController.currentBackStackEntry
+                    ?.savedStateHandle
+                    ?.getStateFlow<Boolean>("booking_success", false)
+                    ?.collect { bookingSuccess ->
+                        if (bookingSuccess) {
+                            mainViewModel.refreshAfterBooking()
+                            navController.currentBackStackEntry
+                                ?.savedStateHandle
+                                ?.set("booking_success", false)
+                        }
+                    }
+            }
+
+            MainScreen(
+                viewModel = mainViewModel,
+                navController = navController
+            )
         }
+
         composable<Screen.Book> {
             BookingScreen(
                 onNavigateBack = {
                     navController.popBackStack()
                 },
                 onBookingSuccess = {
+                    navController.previousBackStackEntry
+                        ?.savedStateHandle
+                        ?.set("booking_success", true)
                     navController.popBackStack()
                 }
             )

app/src/main/java/ru/myitschool/work/user/presentation/MainViewModel.kt

@@ -45,6 +45,10 @@ class MainViewModel : ViewModel() {
         }
     }
 
+    fun refreshAfterBooking() {
+        loadUser()
+    }
+
     private fun loadUser() {
         viewModelScope.launch {
             _mainState.update { it.copy(isLoading = true, error = null) }
@@ -84,20 +88,24 @@ class MainViewModel : ViewModel() {
 
 
     private fun convertBookingsToDisplayItems(bookings: Map<String, String>): List<BookingDisplayItem> {
-        val dateFormat = SimpleDateFormat("dd.MM.yyyy", Locale.getDefault())
+        val serverFormat = SimpleDateFormat("yyyy-MM-dd", Locale.getDefault())
+        val displayFormat = SimpleDateFormat("dd.MM.yyyy", Locale.getDefault())
+
+        return bookings.map { (serverDate, place) ->
+            val displayDate = try {
+                val parsed = serverFormat.parse(serverDate)
+                displayFormat.format(parsed!!)
+            } catch (e: Exception) {
+                serverDate
+            }
 
-        return bookings.map { (date, place) ->
             BookingDisplayItem(
-                date = date,
+                date = displayDate,
                 place = place,
-                originalDate = date
+                originalDate = serverDate
             )
         }.sortedBy { item ->
-            try {
+            item.originalDate
-                dateFormat.parse(item.originalDate)?.time ?: 0L
-            } catch (e: Exception) {
-                0L
-            }
         }
     }