admin/tripMoney
1
0
Fork 0
Code Issues 19 Pull Requests Actions Packages Projects 1 Releases Wiki Activity

init

Browse Source
This commit is contained in:
Rafal Wisniewski
2026-03-25 14:49:02 +01:00
parent 916481e4e3
commit 160dda3bff
15 changed files with 818 additions and 449 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
app/src/main/java/cc/n0th1ng/tripmoney/viewmodel/ExpenseAndCategoryViewModel.kt
View File

@@ -18,12 +18,17 @@ import cc.n0th1ng.tripmoney.data.repository.TripRepository
import cc.n0th1ng.tripmoney.utils.Currencies
import dagger.hilt.android.lifecycle.HiltViewModel
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.first
import kotlinx.coroutines.flow.map
import kotlinx.coroutines.launch
import kotlinx.coroutines.runBlocking
import org.apache.commons.csv.CSVFormat
import org.apache.commons.csv.CSVPrinter
import java.io.File
import java.time.LocalDateTime
import javax.inject.Inject
@HiltViewModel
open class ExpenseAndCategoryViewModel @Inject constructor(
private val expenseRepo: ExpenseRepository,
@@ -55,12 +60,39 @@ open class ExpenseAndCategoryViewModel @Inject constructor(
}
}
@RequiresApi(Build.VERSION_CODES.O)
suspend fun generateCSVToFile(tripId: Int, file: File) {
file.writer().use { writer ->
CSVPrinter(
writer,
CSVFormat.DEFAULT.withHeader("date", "category", "currency", "amount")
).use { printer ->
expenseRepo.getExpenses(tripId).first().forEach { expenseDto ->
printer.printRecord(
expenseDto.expense.datetime,
expenseDto.category.name,
expenseDto.expense.currency,
expenseDto.expense.amount
)
}
}
}
}
@RequiresApi(Build.VERSION_CODES.O)
fun getSummaryAmount(tripId: Int): Flow<Double> {
return getExpensesWithConvertedAmounts(tripId).map { list ->
list.sumOf { it.convertedAmount }
}
}
@RequiresApi(Build.VERSION_CODES.O)
fun getSummaryPerCategory(tripId: Int): Flow<List<SummaryPerCategory>> {
val tripCurrency = tripRepo.getTrip(tripId)?.currency ?: Currencies.default().name
return getExpensesWithConvertedAmounts(tripId)
.map { list ->
// Compute summary
val sumOfAll = list.sumOf { it.convertedAmount }
list.groupBy { it.expenseDto.category }
.map { (category, expenses) ->
@@ -84,7 +116,7 @@ open class ExpenseAndCategoryViewModel @Inject constructor(
val convertedAmount =
if (expenseDto.expense.currency != expenseDto.trip.currency) {
runBlocking {
expenseDto.toExpenseDtoWithConvertedAmount()
expenseDto.convertedAmount()
}
} else {
expenseDto.expense.amount
@@ -102,7 +134,7 @@ open class ExpenseAndCategoryViewModel @Inject constructor(
val convertedAmount =
if (expenseDto.expense.currency != expenseDto.trip.currency) {
runBlocking {
expenseDto.toExpenseDtoWithConvertedAmount()
expenseDto.convertedAmount()
}
} else {
expenseDto.expense.amount
@@ -120,7 +152,7 @@ open class ExpenseAndCategoryViewModel @Inject constructor(
}
@RequiresApi(Build.VERSION_CODES.O)
suspend fun ExpenseDto.toExpenseDtoWithConvertedAmount(): Double {
suspend fun ExpenseDto.convertedAmount(): Double {
return exchangeRateRepository.getRate(
Currencies.valueOf(this.expense.currency),
Currencies.valueOf(this.trip.currency),