feat: add import from CSV and snackbar

app/src/main/java/cc/n0th1ng/tripmoney/MainActivity.kt

@@ -10,8 +10,11 @@ import androidx.annotation.RequiresApi
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.DrawerValue
 import androidx.compose.material3.Scaffold
+import androidx.compose.material3.SnackbarHost
+import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.rememberDrawerState
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
@@ -41,6 +44,7 @@ import cc.n0th1ng.tripmoney.screens.trippicker.TripPickerScreen
 import cc.n0th1ng.tripmoney.theme.TripMoneyTheme
 import cc.n0th1ng.tripmoney.viewmodel.ExpenseAndCategoryViewModel
 import cc.n0th1ng.tripmoney.viewmodel.SettingsViewModel
+import cc.n0th1ng.tripmoney.viewmodel.SnackbarViewModel
 import cc.n0th1ng.tripmoney.viewmodel.TripViewModel
 import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.launch
@@ -80,9 +84,17 @@ fun NavigationDrawer() {
     val autoOpenPref by settingsViewModel.autoOpenStartupPref.collectAsState()
     var hasHandledStartupOpen by rememberSaveable { mutableStateOf(false) }
     val shouldTriggerAutoOpen = autoOpenPref == true && !hasHandledStartupOpen
+    val snackbarHostState = remember { SnackbarHostState() }
+    val snackbarViewModel: SnackbarViewModel = hiltViewModel()
+    LaunchedEffect(Unit) {
+        snackbarViewModel.snackbarManager.messages.collect { message ->
+            snackbarHostState.showSnackbar(message, withDismissAction = true)
+        }
+    }
     ReportDrawnWhen { !categories.isEmpty() }
     CustomNavigationDrawer(navController, drawerState) {
         Scaffold(
+            snackbarHost = { SnackbarHost(hostState = snackbarHostState) },
             topBar = {
                 if (current == Screens.SETTINGS) TopBarSettings(
                     navController

app/src/main/java/cc/n0th1ng/tripmoney/data/TripDatabase.kt

@@ -1,8 +1,6 @@
 package cc.n0th1ng.tripmoney.data
 
 import android.content.Context
-import android.os.Build
-import androidx.annotation.RequiresApi
 import androidx.room.Database
 import androidx.room.Room
 import androidx.room.RoomDatabase
@@ -49,7 +47,6 @@ abstract class TripDatabase : RoomDatabase() {
 @Module
 @InstallIn(SingletonComponent::class)
 object DatabaseModule {
-    @RequiresApi(Build.VERSION_CODES.O)
     @Provides
     @Singleton
     fun provideTripDatabase(
@@ -76,7 +73,6 @@ object DatabaseModule {
                 ).prepopulate()
             }
         }
-
         return db
     }
 
@@ -111,7 +107,6 @@ private class DatabasePrepopulator(
     private val categoryDao: CategoryDao,
     private val expenseDao: ExpenseDao
 ) {
-    @RequiresApi(Build.VERSION_CODES.O)
     suspend fun prepopulate() {
 
         tripDao.insert(
@@ -193,7 +188,6 @@ private class DatabasePrepopulator(
         ),
     )
 
-    @RequiresApi(Build.VERSION_CODES.O)
     val sampleExpenses = (0..150).map { i ->
 
         val datetime = if (i > 4) {

app/src/main/java/cc/n0th1ng/tripmoney/data/dao/CategoryDao.kt

@@ -11,9 +11,14 @@ import kotlinx.coroutines.flow.Flow
 @Dao
 interface CategoryDao {
     @Upsert
-    suspend fun insert(category: Category)
-
+    suspend fun insert(category: Category): Long
 
+    @Query(
+        """
+        SELECT * FROM category WHERE name = :name LIMIT 1
+    """
+    )
+    fun getByName(name: String): Flow<Category?>
     @Delete
     suspend fun delete(category: Category)
 

app/src/main/java/cc/n0th1ng/tripmoney/data/dao/TripDao.kt

@@ -3,7 +3,6 @@ package cc.n0th1ng.tripmoney.data.dao
 import androidx.paging.PagingSource
 import androidx.room.Dao
 import androidx.room.Delete
-import androidx.room.Insert
 import androidx.room.Query
 import androidx.room.Upsert
 import cc.n0th1ng.tripmoney.data.entity.Trip
@@ -12,7 +11,7 @@ import kotlinx.coroutines.flow.Flow
 @Dao
 interface TripDao {
     @Upsert
-    suspend fun insert(trip: Trip)
+    suspend fun insert(trip: Trip): Long
 
     @Query(
         """

app/src/main/java/cc/n0th1ng/tripmoney/data/repository/CategoryRepository.kt

@@ -9,8 +9,12 @@ import javax.inject.Inject
 class CategoryRepository @Inject constructor(private val categoryDao: CategoryDao) {
 
     @WorkerThread
-    suspend fun save(category: Category) {
-        categoryDao.insert(category)
+    suspend fun save(category: Category): Long {
+        return categoryDao.insert(category)
+    }
+
+    fun getByName(name: String): Flow<Category?> {
+        return categoryDao.getByName(name)
     }
 
     @WorkerThread

app/src/main/java/cc/n0th1ng/tripmoney/data/repository/ExchangeRateRepository.kt

@@ -1,15 +1,10 @@
 package cc.n0th1ng.tripmoney.data.repository
 
-import android.os.Build
-import androidx.annotation.RequiresApi
 import androidx.annotation.WorkerThread
-import cc.n0th1ng.tripmoney.data.dao.CategoryDao
 import cc.n0th1ng.tripmoney.data.dao.ExchangeRateDao
-import cc.n0th1ng.tripmoney.data.entity.Category
 import cc.n0th1ng.tripmoney.data.entity.ExchangeRate
 import cc.n0th1ng.tripmoney.service.ExchangeService
 import cc.n0th1ng.tripmoney.utils.Currencies
-import kotlinx.coroutines.flow.Flow
 import java.time.LocalDate
 import javax.inject.Inject
 
@@ -23,7 +18,6 @@ class ExchangeRateRepository @Inject constructor(
         exchangeRateDao.insert(exchangeRate)
     }
 
-    @RequiresApi(Build.VERSION_CODES.O)
     suspend fun getRate(base: Currencies, target: Currencies, date: LocalDate): Double {
         if(base == target) return 1.0
         val id = ExchangeRate.buildKey(base.name, target.name, date.toString())
@@ -45,7 +39,6 @@ class ExchangeRateRepository @Inject constructor(
         }
     }
 
-    @RequiresApi(Build.VERSION_CODES.O)
     suspend fun clearOldRates(daysToKeep: Int = 180) {
         val cutoffDate = LocalDate.now().minusDays(daysToKeep.toLong()).toString()
         exchangeRateDao.deleteOldRates(cutoffDate)

app/src/main/java/cc/n0th1ng/tripmoney/data/repository/TripRepository.kt

@@ -1,28 +1,20 @@
 package cc.n0th1ng.tripmoney.data.repository
 
-import android.os.Build
-import androidx.annotation.RequiresApi
 import androidx.annotation.WorkerThread
 import androidx.paging.Pager
 import androidx.paging.PagingConfig
 import androidx.paging.PagingData
 import cc.n0th1ng.tripmoney.data.dao.TripDao
 import cc.n0th1ng.tripmoney.data.entity.Trip
-import cc.n0th1ng.tripmoney.viewmodel.ExpenseAndCategoryViewModel
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.launch
 import javax.inject.Inject
 
 class TripRepository @Inject constructor(
-    private val tripDao: TripDao,
-    private val expenseRepository: ExpenseRepository
+    private val tripDao: TripDao
 ) {
 
-    @RequiresApi(Build.VERSION_CODES.O)
-    suspend fun save(trip: Trip) {
-        tripDao.insert(trip)
+    suspend fun save(trip: Trip): Long {
+        return tripDao.insert(trip)
     }
 
     fun getTrips(): Flow<PagingData<Trip>> {

app/src/main/java/cc/n0th1ng/tripmoney/screens/addexpense/AddExpenseBottomSheet.kt

@@ -1,8 +1,6 @@
 package cc.n0th1ng.tripmoney.screens.addexpense
 
 import android.annotation.SuppressLint
-import android.os.Build
-import androidx.annotation.RequiresApi
 import androidx.compose.foundation.background
 import androidx.compose.foundation.combinedClickable
 import androidx.compose.foundation.focusable
@@ -77,7 +75,6 @@ import java.time.LocalDateTime
 import java.time.format.DateTimeFormatter
 
 @OptIn(ExperimentalMaterial3Api::class)
-@RequiresApi(Build.VERSION_CODES.O)
 @Composable
 fun AddExpenseBottomSheet(
     onSave: (Expense) -> Unit,
@@ -104,7 +101,6 @@ fun AddExpenseBottomSheet(
 }
 
 @OptIn(ExperimentalMaterial3Api::class)
-@RequiresApi(Build.VERSION_CODES.O)
 @Composable
 fun AddExpenseBottomSheet(
     onSave: (Expense) -> Unit,
@@ -558,7 +554,6 @@ val keyboard = listOf(
 
 
 @SuppressLint("CoroutineCreationDuringComposition")
-@RequiresApi(Build.VERSION_CODES.O)
 @OptIn(ExperimentalMaterial3Api::class)
 @AllPreviews
 @Composable
@@ -589,7 +584,6 @@ fun PreviewAddExpenseDisabled() {
 }
 
 @SuppressLint("CoroutineCreationDuringComposition")
-@RequiresApi(Build.VERSION_CODES.O)
 @OptIn(ExperimentalMaterial3Api::class)
 @AllPreviews
 @Composable

app/src/main/java/cc/n0th1ng/tripmoney/screens/listexpense/ListExpenseScreen.kt

@@ -100,7 +100,6 @@ fun ListExpenseScreen(
         expenseAndCategoryViewModel.getExpensesWithHeadersPaged(currentTripId, search, filter)
     val isRecalculatingRate by tripViewModel.isRecalculating.collectAsState()
     var idToScroll by remember { mutableIntStateOf(-1) }
-
     ListExpenseScreen(
         currentTrip = currentTrip,
         expensesFlow = expensesFlow,

app/src/main/java/cc/n0th1ng/tripmoney/screens/settings/SettingsScreen.kt

@@ -1,6 +1,11 @@
 package cc.n0th1ng.tripmoney.screens.settings
 
+import android.content.ContentResolver
+import android.net.Uri
 import android.os.Build
+import android.provider.MediaStore
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.annotation.RequiresApi
 import androidx.annotation.StringRes
 import androidx.compose.foundation.clickable
@@ -48,6 +53,7 @@ import cc.n0th1ng.tripmoney.utils.Currencies
 import cc.n0th1ng.tripmoney.utils.shareCsv
 import cc.n0th1ng.tripmoney.viewmodel.ExpenseAndCategoryViewModel
 import cc.n0th1ng.tripmoney.viewmodel.SettingsViewModel
+import cc.n0th1ng.tripmoney.viewmodel.SnackbarViewModel
 import cc.n0th1ng.tripmoney.viewmodel.TripViewModel
 import com.composables.icons.materialsymbols.outlined.R
 import kotlinx.coroutines.launch
@@ -57,6 +63,7 @@ import java.io.File
 @Composable
 fun SettingsScreen(navController: NavHostController) {
     val settingsViewModel: SettingsViewModel = hiltViewModel()
+    val snackbarViewModel: SnackbarViewModel = hiltViewModel()
     val currentTheme by settingsViewModel.theme.collectAsState()
     val currentAddExpenseSwitch by settingsViewModel.addExpenseSwitch.collectAsState()
     val currentDefaultCurrency by settingsViewModel.defaultCurrency.collectAsState()
@@ -67,7 +74,31 @@ fun SettingsScreen(navController: NavHostController) {
     val context = LocalContext.current
     val tripName = currentTrip?.name ?: ""
     val scope = rememberCoroutineScope()
+    val result = remember { mutableStateOf<Uri?>(null) }
+    val wentWrongMessage = stringResource(string.went_wrong)
+    val successImportMessage = stringResource(string.import_success)
+    val launcher = rememberLauncherForActivityResult(ActivityResultContracts.OpenDocument()) {
+        result.value = it
+        if (it != null) {
+            context.contentResolver.openInputStream(it)?.use { inputStream ->
+                inputStream.bufferedReader().use { input ->
+                    val csvText = input.readText()
+                    val filename = context.contentResolver.filename(it)
+                    if (filename != null) {
+                        expenseAndCategoryViewModel.importCSV(
+                            csvText, filename,
+                            onError = { ex ->
+                                snackbarViewModel.showMessage(wentWrongMessage)
+                            },
+                        onSuccess = {
+                            snackbarViewModel.showMessage(successImportMessage)
+                        })
+                    }
+                }
+            }
+        }
 
+    }
     SettingsScreen(
         currentDefaultCurrency = currentDefaultCurrency,
         currentTheme = currentTheme,
@@ -90,11 +121,29 @@ fun SettingsScreen(navController: NavHostController) {
                 }
             }
         },
+        onImportCsv = {
+            launcher.launch(arrayOf("*/*"))
+        },
         onCategoriesClick = { navController.navigate(Screens.MANAGE_CATEGORIES) },
         currentAddExpenseSwitch = currentAddExpenseSwitch
     )
 }
 
+private fun ContentResolver.filename(uri: Uri): String? {
+    val projection = arrayOf<String?>(MediaStore.MediaColumns.DISPLAY_NAME)
+    val metaCursor = this.query(uri, projection, null, null, null);
+    if (metaCursor != null) {
+        try {
+            if (metaCursor.moveToFirst()) {
+                return metaCursor.getString(0)
+            }
+        } finally {
+            metaCursor.close();
+        }
+    }
+    return null
+}
+
 @RequiresApi(Build.VERSION_CODES.S)
 @Composable
 fun SettingsScreen(
@@ -106,7 +155,8 @@ fun SettingsScreen(
     onExportToCsv: () -> Unit,
     onCategoriesClick: () -> Unit,
     onAddExpenseSwitch: (Boolean) -> Unit,
-    currentAddExpenseSwitch: Boolean
+    currentAddExpenseSwitch: Boolean,
+    onImportCsv: () -> Unit
 ) {
 
     Scaffold { padding ->
@@ -143,12 +193,20 @@ fun SettingsScreen(
                     iconResource = R.drawable.materialsymbols_ic_palette_outlined
                 )
             }
+            SettingsCard(string.import_export) {
                 SettingsListItem(
                     onClick = onExportToCsv,
                     stringResource(string.export_to_csv),
                     supportingText = stringResource(string.export_csv_subttext).format(tripName),
                     iconResource = R.drawable.materialsymbols_ic_csv_outlined
                 )
+                SettingsListItem(
+                    onClick = onImportCsv,
+                    stringResource(string.import_csv),
+                    supportingText = stringResource(string.import_csv_subtext),
+                    iconResource = R.drawable.materialsymbols_ic_csv_outlined
+                )
+            }
             SettingsListItem(
                 onClick = onCategoriesClick,
                 stringResource(string.categories),
@@ -161,7 +219,9 @@ fun SettingsScreen(
                 supportingText = stringResource(string.add_expense_settings),
                 iconResource = R.drawable.materialsymbols_ic_payments_outlined,
                 trailingContent = {
-                    Switch(checked = currentAddExpenseSwitch, onCheckedChange = {onAddExpenseSwitch(it)})
+                    Switch(
+                        checked = currentAddExpenseSwitch,
+                        onCheckedChange = { onAddExpenseSwitch(it) })
                 }
             )
 
@@ -287,11 +347,13 @@ fun PreviewSettingsScreen() {
             tripName = "Włochy",
             onCategoriesClick = {},
             onAddExpenseSwitch = {},
-            currentAddExpenseSwitch = false
+            currentAddExpenseSwitch = false,
+            onImportCsv = {}
         )
     }
 }
 
+
 @RequiresApi(Build.VERSION_CODES.S)
 @AllPreviews
 @Composable

app/src/main/java/cc/n0th1ng/tripmoney/service/ImportService.kt

@@ -0,0 +1,98 @@
+package cc.n0th1ng.tripmoney.service
+
+import androidx.room.withTransaction
+import cc.n0th1ng.tripmoney.data.TripDatabase
+import cc.n0th1ng.tripmoney.data.entity.Category
+import cc.n0th1ng.tripmoney.data.entity.Expense
+import cc.n0th1ng.tripmoney.data.entity.Trip
+import cc.n0th1ng.tripmoney.data.repository.CategoryRepository
+import cc.n0th1ng.tripmoney.data.repository.ExchangeRateRepository
+import cc.n0th1ng.tripmoney.data.repository.ExpenseRepository
+import cc.n0th1ng.tripmoney.data.repository.TripRepository
+import cc.n0th1ng.tripmoney.utils.Currencies
+import cc.n0th1ng.tripmoney.utils.Icons
+import cc.n0th1ng.tripmoney.utils.colors
+import kotlinx.coroutines.flow.first
+import org.apache.commons.csv.CSVFormat
+import org.apache.commons.csv.CSVParser
+import java.time.LocalDateTime
+import javax.inject.Inject
+
+class ImportService @Inject() constructor(
+    private val tripRepo: TripRepository,
+    private val expenseRepository: ExpenseRepository,
+    private val categoryRepository: CategoryRepository,
+    private val exchangeRateRepository: ExchangeRateRepository,
+    private val db: TripDatabase
+) {
+    suspend fun importCSV(
+        csv: String,
+        filename: String,
+        onError: (Exception) -> Unit,
+        onSuccess: () -> Unit
+    ) {
+        try {
+            db.withTransaction {
+                val parser = CSVParser.parse(
+                    csv, CSVFormat.DEFAULT.builder().setHeader(
+                        "date", "category", "currency", "amount", "note"
+                    ).setSkipHeaderRecord(true).get()
+                )
+                val records = parser.records.toList()
+                val currency = records.map { it.get("currency") }.groupingBy { it }.eachCount()
+                    .maxBy { it.value }.key
+                val startDate =
+                    records.map { it.get("date") }
+                        .minOfOrNull { LocalDateTime.parse(it.substringBefore(",")).toLocalDate() }
+                val endDate =
+                    records.map { it.get("date") }
+                        .maxOfOrNull { LocalDateTime.parse(it.substringBefore(",")).toLocalDate() }
+                if (!Currencies.names().contains(currency.uppercase()))
+                    throw Exception("There is no such currency as $currency")
+                if (startDate == null || endDate == null) throw Exception("There is no start or end date")
+                val trip = Trip(
+                    name = filename.substringBefore(".csv"),
+                    startDate = startDate,
+                    endDate = endDate,
+                    currency = currency
+                )
+                val tripId = tripRepo.save(trip)
+
+                records.forEach {
+                    val dateTime = LocalDateTime.parse(it.get("date").substringBefore(","))
+                    val amount = it.get("amount")
+                    val currency = it.get("currency")
+                    val categoryName = it.get("category")
+                    val note = it.get("note")
+                    val category = categoryRepository.getByName(categoryName).first()
+                    val categoryId = category?.id
+                        ?: categoryRepository.save(
+                            Category(
+                                name = categoryName,
+                                icon = Icons.entries.random(),
+                                color = colors.random()
+                            )
+                        ).toInt()
+
+                    val rate = exchangeRateRepository.getRate(
+                        Currencies.valueOf(currency),
+                        Currencies.valueOf(trip.currency),
+                        dateTime.toLocalDate(),
+                    )
+                    val expense = Expense(
+                        amount = amount.toDouble(),
+                        currency = currency,
+                        note = note,
+                        datetime = dateTime,
+                        categoryId = categoryId,
+                        tripId = tripId.toInt(),
+                    )
+                    expenseRepository.save(expense.copy(rate = rate))
+                }
+            }
+            onSuccess()
+        } catch (ex: Exception) {
+            onError(ex)
+        }
+    }
+}

app/src/main/java/cc/n0th1ng/tripmoney/utils/Currencies.kt

@@ -42,6 +42,7 @@ enum class Currencies {
     DZD,
     EGP,
     ERN,
+    EUR,
     ETB,
     FJD,
     FKP,

app/src/main/java/cc/n0th1ng/tripmoney/viewmodel/ExpenseAndCategoryViewModel.kt

@@ -1,7 +1,5 @@
 package cc.n0th1ng.tripmoney.viewmodel
 
-import android.os.Build
-import androidx.annotation.RequiresApi
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import androidx.paging.PagingData
@@ -19,6 +17,7 @@ import cc.n0th1ng.tripmoney.data.repository.CategoryRepository
 import cc.n0th1ng.tripmoney.data.repository.ExchangeRateRepository
 import cc.n0th1ng.tripmoney.data.repository.ExpenseRepository
 import cc.n0th1ng.tripmoney.data.repository.TripRepository
+import cc.n0th1ng.tripmoney.service.ImportService
 import cc.n0th1ng.tripmoney.utils.Currencies
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.Flow
@@ -38,7 +37,8 @@ open class ExpenseAndCategoryViewModel @Inject constructor(
     private val expenseRepo: ExpenseRepository,
     private val categoryRepo: CategoryRepository,
     private val exchangeRateRepository: ExchangeRateRepository,
-    private val tripRepo: TripRepository
+    private val tripRepo: TripRepository,
+    private val importService: ImportService
 ) : ViewModel() {
 
     fun getBudgetLeft(tripId: Int): Flow<Double?> {
@@ -52,7 +52,6 @@ open class ExpenseAndCategoryViewModel @Inject constructor(
     ): Flow<PagingData<ExpenseDto>> =
         expenseRepo.getExpensesDtoPaged(tripId, search, filter).cachedIn(viewModelScope)
 
-    @RequiresApi(Build.VERSION_CODES.O)
     fun getExpensesWithHeadersPaged(
         tripId: Int,
         search: String = "",
@@ -136,14 +135,16 @@ open class ExpenseAndCategoryViewModel @Inject constructor(
         file.writer().use { writer ->
             CSVPrinter(
                 writer,
-                CSVFormat.DEFAULT.withHeader("date", "category", "currency", "amount")
+                CSVFormat.DEFAULT.builder()
+                    .setHeader("date", "category", "currency", "amount", "note").get()
             ).use { printer ->
                 expenseRepo.getExpensesDto(tripId).first().forEach { expenseDto ->
                     printer.printRecord(
                         expenseDto.expense.datetime,
                         expenseDto.category.name,
                         expenseDto.expense.currency,
-                        expenseDto.expense.amount
+                        expenseDto.expense.amount,
+                        expenseDto.expense.note
                     )
 
                 }
@@ -214,6 +215,12 @@ open class ExpenseAndCategoryViewModel @Inject constructor(
         }
     }
 
+    fun importCSV(csv: String, filename: String, onError: (Exception) -> Unit, onSuccess: () -> Unit) {
+        viewModelScope.launch {
+            importService.importCSV(csv, filename, onError, onSuccess)
+        }
+    }
+
     fun clearOldRates() {
         viewModelScope.launch {
             exchangeRateRepository.clearOldRates()

app/src/main/java/cc/n0th1ng/tripmoney/viewmodel/SnackbarManager.kt

@@ -0,0 +1,16 @@
+package cc.n0th1ng.tripmoney.viewmodel
+
+import jakarta.inject.Inject
+import jakarta.inject.Singleton
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.asSharedFlow
+
+@Singleton
+class SnackbarManager @Inject constructor() {
+    private val _messages = MutableSharedFlow<String>()
+    val messages = _messages.asSharedFlow()
+
+    suspend fun showMessage(message: String) {
+        _messages.emit(message)
+    }
+}

app/src/main/java/cc/n0th1ng/tripmoney/viewmodel/SnackbarViewModel.kt

@@ -0,0 +1,18 @@
+package cc.n0th1ng.tripmoney.viewmodel
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.lifecycle.HiltViewModel
+import jakarta.inject.Inject
+import kotlinx.coroutines.launch
+
+@HiltViewModel
+class SnackbarViewModel @Inject constructor(
+    val snackbarManager: SnackbarManager
+) : ViewModel() {
+    fun showMessage(message: String) {
+        viewModelScope.launch {
+            snackbarManager.showMessage(message)
+        }
+    }
+}

app/src/main/res/values-pl/strings.xml

@@ -45,4 +45,9 @@
     <string name="no_trip_picked">Wybierz wycieczkę żeby zobaczyć wydatki</string>
     <string name="no_trip_added">Zacznij budżetowanie od dodania wycieczki</string>
     <string name="no_expenses_summary">Brak wydatków do podsumowania</string>
+    <string name="import_csv">Import z CSV</string>
+    <string name="import_csv_subtext">Stwórz nową wycieczkę z CSV</string>
+    <string name="import_export">Import/Eksport</string>
+    <string name="went_wrong">Coś poszło nie tak.</string>
+    <string name="import_success">Dane zaimportowane poprawnie!</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -45,4 +45,9 @@
     <string name="no_trip_picked">Select trip to see expenses</string>
     <string name="no_trip_added">Start budgeting by adding your trip</string>
     <string name="no_expenses_summary">No expenses to summarize</string>
+    <string name="import_csv">import from CSV</string>
+    <string name="import_csv_subtext">Create new trip from CSV</string>
+    <string name="import_export">Import/Export</string>
+    <string name="went_wrong">Sorry, something went wrong.</string>
+    <string name="import_success">Data imported successfully!</string>
 </resources>