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/*
* This file is part of LibEuFin.
* Copyright (C) 2023 Taler Systems S.A.
* LibEuFin is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation; either version 3, or
* (at your option) any later version.
* LibEuFin is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General
* Public License for more details.
* You should have received a copy of the GNU Affero General Public
* License along with LibEuFin; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>
*/
package tech.libeufin.bank.db
import tech.libeufin.bank.*
import tech.libeufin.common.*
import java.time.Instant
/** Data access logic for cashout operations */
class CashoutDAO(private val db: Database) {
/** Result of cashout operation creation */
sealed interface CashoutCreationResult {
data class Success(val id: Long): CashoutCreationResult
data object BadConversion: CashoutCreationResult
data object AccountNotFound: CashoutCreationResult
data object AccountIsExchange: CashoutCreationResult
data object BalanceInsufficient: CashoutCreationResult
data object RequestUidReuse: CashoutCreationResult
data object NoCashoutPayto: CashoutCreationResult
data object TanRequired: CashoutCreationResult
}
/** Create a new cashout operation */
suspend fun create(
login: String,
requestUid: ShortHashCode,
amountDebit: TalerAmount,
amountCredit: TalerAmount,
subject: String,
now: Instant,
is2fa: Boolean
): CashoutCreationResult = db.serializable { conn ->
val stmt = conn.prepareStatement("""
SELECT
out_bad_conversion,
out_account_not_found,
out_account_is_exchange,
out_balance_insufficient,
out_request_uid_reuse,
out_no_cashout_payto,
out_tan_required,
out_cashout_id
FROM cashout_create(?,?,(?,?)::taler_amount,(?,?)::taler_amount,?,?,?)
""")
stmt.setString(1, login)
stmt.setBytes(2, requestUid.raw)
stmt.setLong(3, amountDebit.value)
stmt.setInt(4, amountDebit.frac)
stmt.setLong(5, amountCredit.value)
stmt.setInt(6, amountCredit.frac)
stmt.setString(7, subject)
stmt.setLong(8, now.micros())
stmt.setBoolean(9, is2fa)
stmt.executeQuery().use {
when {
!it.next() ->
throw internalServerError("No result from DB procedure cashout_create")
it.getBoolean("out_bad_conversion") -> CashoutCreationResult.BadConversion
it.getBoolean("out_account_not_found") -> CashoutCreationResult.AccountNotFound
it.getBoolean("out_account_is_exchange") -> CashoutCreationResult.AccountIsExchange
it.getBoolean("out_balance_insufficient") -> CashoutCreationResult.BalanceInsufficient
it.getBoolean("out_request_uid_reuse") -> CashoutCreationResult.RequestUidReuse
it.getBoolean("out_no_cashout_payto") -> CashoutCreationResult.NoCashoutPayto
it.getBoolean("out_tan_required") -> CashoutCreationResult.TanRequired
else -> CashoutCreationResult.Success(it.getLong("out_cashout_id"))
}
}
}
/** Get status of cashout operation [id] owned by [login] */
suspend fun get(id: Long, login: String): CashoutStatusResponse? = db.conn { conn ->
val stmt = conn.prepareStatement("""
SELECT
(amount_debit).val as amount_debit_val
,(amount_debit).frac as amount_debit_frac
,(amount_credit).val as amount_credit_val
,(amount_credit).frac as amount_credit_frac
,cashout_operations.subject
,creation_time
,transaction_date as confirmation_date
,tan_channel
,CASE tan_channel
WHEN 'sms' THEN phone
WHEN 'email' THEN email
END as tan_info
FROM cashout_operations
JOIN bank_accounts ON bank_account=bank_account_id
JOIN customers ON owning_customer_id=customer_id
LEFT JOIN bank_account_transactions ON local_transaction=bank_transaction_id
WHERE cashout_id=? AND login=? AND deleted_at IS NULL
""")
stmt.setLong(1, id)
stmt.setString(2, login)
stmt.oneOrNull {
CashoutStatusResponse(
status = CashoutStatus.confirmed,
amount_debit = it.getAmount("amount_debit", db.bankCurrency),
amount_credit = it.getAmount("amount_credit", db.fiatCurrency!!),
subject = it.getString("subject"),
creation_time = it.getTalerTimestamp("creation_time"),
confirmation_time = when (val timestamp = it.getLong("confirmation_date")) {
0L -> null
else -> TalerProtocolTimestamp(timestamp.asInstant())
},
tan_channel = it.getString("tan_channel")?.run { TanChannel.valueOf(this) },
tan_info = it.getString("tan_info"),
)
}
}
/** Get a page of all cashout operations */
suspend fun pageAll(params: PageParams): List<GlobalCashoutInfo> =
db.page(params, "cashout_id", """
SELECT
cashout_id
,login
FROM cashout_operations
JOIN bank_accounts ON bank_account=bank_account_id
JOIN customers ON owning_customer_id=customer_id
WHERE deleted_at IS NULL AND
""") {
GlobalCashoutInfo(
cashout_id = it.getLong("cashout_id"),
username = it.getString("login"),
status = CashoutStatus.confirmed
)
}
/** Get a page of all cashout operations owned by [login] */
suspend fun pageForUser(params: PageParams, login: String): List<CashoutInfo> =
db.page(params, "cashout_id", """
SELECT cashout_id
FROM cashout_operations
JOIN bank_accounts ON bank_account=bank_account_id
JOIN customers ON owning_customer_id=customer_id
WHERE login = ? AND deleted_at IS NULL AND
""",
bind = {
setString(1, login)
1
}
) {
CashoutInfo(
cashout_id = it.getLong("cashout_id"),
status = CashoutStatus.confirmed
)
}
}
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