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package tech.libeufin.sandbox
import io.ktor.http.*
import org.apache.http.HttpStatus
import org.jetbrains.exposed.sql.and
import org.jetbrains.exposed.sql.transactions.transaction
import org.slf4j.Logger
import org.slf4j.LoggerFactory
import tech.libeufin.util.*
import java.math.BigDecimal
import kotlin.system.exitProcess
private val logger: Logger = LoggerFactory.getLogger("tech.libeufin.sandbox")
fun getAccountFromLabel(accountLabel: String): BankAccountEntity {
return transaction {
val account = BankAccountEntity.find {
BankAccountsTable.label eq accountLabel
}.firstOrNull()
if (account == null) throw SandboxError(
HttpStatusCode.NotFound, "Account '$accountLabel' not found"
)
account
}
}
// Mainly useful inside the CAMT generator.
fun balanceForAccount(
history: MutableList<RawPayment>,
baseBalance: BigDecimal
): BigDecimal {
var ret = baseBalance
history.forEach direction@ {
if (it.direction == "CRDT") {
val amount = parseDecimal(it.amount)
ret += amount
return@direction
}
if (it.direction == "DBIT") {
val amount = parseDecimal(it.amount)
ret -= amount
return@direction
}
throw SandboxError(
HttpStatusCode.InternalServerError,
"A payment direction was found neither CRDT nor DBIT",
LibeufinErrorCode.LIBEUFIN_EC_INVALID_STATE
)
}
return ret
}
fun balanceForAccount(bankAccount: BankAccountEntity): BigDecimal {
var balance = BigDecimal.ZERO
transaction {
BankAccountTransactionEntity.find {
BankAccountTransactionsTable.direction eq "CRDT" and (
BankAccountTransactionsTable.account eq bankAccount.id)
}.forEach {
val amount = parseDecimal(it.amount)
balance += amount
}
BankAccountTransactionEntity.find {
BankAccountTransactionsTable.direction eq "DBIT" and (
BankAccountTransactionsTable.account eq bankAccount.id)
}.forEach {
val amount = parseDecimal(it.amount)
balance -= amount
}
}
/**
* FIXME: for negative accounts, temporarily return 0, so as to make
* the current CAMT generator happy. Negative amounts need to have their
* onw sub-tree in the report, see bug: #6962
*/
if (balance < BigDecimal.ZERO) return BigDecimal.ZERO
return balance
}
// For now, returns everything.
fun historyForAccount(bankAccount: BankAccountEntity): MutableList<RawPayment> {
val history = mutableListOf<RawPayment>()
transaction {
/**
FIXME: add the following condition too:
and (BankAccountTransactionsTable.date.between(start.millis, end.millis))
*/
/**
FIXME: add the following condition too:
and (BankAccountTransactionsTable.date.between(start.millis, end.millis))
*/
BankAccountTransactionEntity.find {
BankAccountTransactionsTable.account eq bankAccount.id
}.forEach {
history.add(
RawPayment(
subject = it.subject,
creditorIban = it.creditorIban,
creditorBic = it.creditorBic,
creditorName = it.creditorName,
debtorIban = it.debtorIban,
debtorBic = it.debtorBic,
debtorName = it.debtorName,
date = importDateFromMillis(it.date).toDashedDate(),
amount = it.amount,
currency = it.currency,
// The line below produces a value too long (>35 chars),
// and it makes the document invalid!
// uid = "${it.pmtInfId}-${it.msgId}"
uid = it.accountServicerReference,
direction = it.direction,
pmtInfId = it.pmtInfId
)
)
}
}
return history
}
fun wireTransfer(
debitAccount: String, creditAccount: String,
amount: String, subjectArg: String
) {
// check accounts exist
transaction {
val credit = BankAccountEntity.find {
BankAccountsTable.label eq creditAccount
}.firstOrNull() ?: run {
throw SandboxError(HttpStatusCode.NotFound, "Credit account: $creditAccount, not found")
}
val debit = BankAccountEntity.find {
BankAccountsTable.label eq debitAccount
}.firstOrNull() ?: run {
throw SandboxError(HttpStatusCode.NotFound, "Debit account: $debitAccount, not found")
}
if (credit.currency != debit.currency) {
throw SandboxError(HttpStatusCode.InternalServerError,
"Sandbox has inconsistent state: " +
"currency of credit (${credit.currency}) and debit (${debit.currency}) account differs."
)
}
val amountObj = try {
parseAmount(amount)
} catch (e: Exception) {
throw SandboxError(HttpStatusCode.BadRequest, "Amount given not valid: $amount")
}
// Extra check on the currency's consistency
if (credit.currency != debit.currency) throw SandboxError(
HttpStatusCode.InternalServerError,
"Credit and debit account have different currency (${credit.currency} vs ${debit.currency})!",
LibeufinErrorCode.LIBEUFIN_EC_CURRENCY_INCONSISTENT
)
if (amountObj.currency != credit.currency || amountObj.currency != debit.currency) {
throw SandboxError(
HttpStatusCode.BadRequest,
"Currency (${amountObj.currency}) is not supported",
LibeufinErrorCode.LIBEUFIN_EC_BAD_CURRENCY
)
}
val randId = getRandomString(16)
BankAccountTransactionEntity.new {
creditorIban = credit.iban
creditorBic = credit.bic
creditorName = credit.name
debtorIban = debit.iban
debtorBic = debit.bic
debtorName = debit.name
subject = subjectArg
this.amount = amountObj.amount.toString()
currency = amountObj.currency
date = getUTCnow().toInstant().toEpochMilli()
accountServicerReference = "sandbox-$randId"
account = debit
direction = "DBIT"
}
BankAccountTransactionEntity.new {
creditorIban = credit.iban
creditorBic = credit.bic
creditorName = credit.name
debtorIban = debit.iban
debtorBic = debit.bic
debtorName = debit.name
subject = subjectArg
this.amount = amountObj.amount.toString()
currency = amountObj.currency
date = getUTCnow().toInstant().toEpochMilli()
accountServicerReference = "sandbox-$randId"
account = credit
direction = "CRDT"
}
}
}
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