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/*
* This file is part of LibEuFin.
* Copyright (C) 2024 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/>
*/
import io.ktor.client.request.*
import org.junit.Test
import tech.libeufin.bank.MonitorResponse
import tech.libeufin.bank.MonitorWithConversion
import tech.libeufin.bank.Timeframe
import tech.libeufin.common.*
import java.time.Instant
import java.time.LocalDateTime
import kotlin.test.assertEquals
class StatsTest {
@Test
fun register() = bankSetup { db ->
setMaxDebt("merchant", "KUDOS:1000")
setMaxDebt("exchange", "KUDOS:1000")
setMaxDebt("customer", "KUDOS:1000")
suspend fun cashin(amount: String) {
db.conn { conn ->
val stmt = conn.prepareStatement("SELECT 0 FROM cashin(?, ?, (?, ?)::taler_amount, ?)")
stmt.setLong(1, Instant.now().toDbMicros()!!)
stmt.setBytes(2, ShortHashCode.rand().raw)
val amount = TalerAmount(amount)
stmt.setLong(3, amount.value)
stmt.setInt(4, amount.frac)
stmt.setString(5, "")
stmt.executeQueryCheck()
}
}
suspend fun monitor(
dbCount: (MonitorWithConversion) -> Long,
count: Long,
regionalVolume: (MonitorWithConversion) -> TalerAmount,
regionalAmount: String,
fiatVolume: ((MonitorWithConversion) -> TalerAmount)? = null,
fiatAmount: String? = null
) {
Timeframe.entries.forEach { timestamp ->
client.get("/monitor?timestamp=${timestamp.name}") { pwAuth("admin") }.assertOkJson<MonitorResponse> {
val resp = it as MonitorWithConversion
assertEquals(count, dbCount(resp))
assertEquals(TalerAmount(regionalAmount), regionalVolume(resp))
fiatVolume?.run { assertEquals(TalerAmount(fiatAmount!!), this(resp)) }
}
}
}
suspend fun monitorTalerIn(count: Long, amount: String) =
monitor({it.talerInCount}, count, {it.talerInVolume}, amount)
suspend fun monitorTalerOut(count: Long, amount: String) =
monitor({it.talerOutCount}, count, {it.talerOutVolume}, amount)
suspend fun monitorCashin(count: Long, regionalAmount: String, fiatAmount: String) =
monitor({it.cashinCount}, count, {it.cashinRegionalVolume}, regionalAmount, {it.cashinFiatVolume}, fiatAmount)
suspend fun monitorCashout(count: Long, regionalAmount: String, fiatAmount: String) =
monitor({it.cashoutCount}, count, {it.cashoutRegionalVolume}, regionalAmount, {it.cashoutFiatVolume}, fiatAmount)
monitorTalerIn(0, "KUDOS:0")
monitorTalerOut(0, "KUDOS:0")
monitorCashin(0, "KUDOS:0", "EUR:0")
monitorCashout(0, "KUDOS:0", "EUR:0")
addIncoming("KUDOS:3")
monitorTalerIn(1, "KUDOS:3")
addIncoming("KUDOS:7.6")
monitorTalerIn(2, "KUDOS:10.6")
addIncoming("KUDOS:12.3")
monitorTalerIn(3, "KUDOS:22.9")
transfer("KUDOS:10.0")
monitorTalerOut(1, "KUDOS:10.0")
transfer("KUDOS:30.5")
monitorTalerOut(2, "KUDOS:40.5")
transfer("KUDOS:42")
monitorTalerOut(3, "KUDOS:82.5")
cashin("EUR:10")
monitorCashin(1, "KUDOS:7.98", "EUR:10")
monitorTalerIn(4, "KUDOS:30.88")
cashin("EUR:20")
monitorCashin(2, "KUDOS:23.96", "EUR:30")
monitorTalerIn(5, "KUDOS:46.86")
cashin("EUR:40")
monitorCashin(3, "KUDOS:55.94", "EUR:70")
monitorTalerIn(6, "KUDOS:78.84")
cashout("KUDOS:3")
monitorCashout(1, "KUDOS:3", "EUR:3.747")
cashout("KUDOS:7.6")
monitorCashout(2, "KUDOS:10.6", "EUR:13.244")
cashout("KUDOS:12.3")
monitorCashout(3, "KUDOS:22.9", "EUR:28.616")
monitorTalerIn(6, "KUDOS:78.84")
monitorTalerOut(3, "KUDOS:82.5")
monitorCashin(3, "KUDOS:55.94", "EUR:70")
monitorCashout(3, "KUDOS:22.9", "EUR:28.616")
}
@Test
fun timeframe() = bankSetup { db ->
db.conn { conn ->
suspend fun register(now: LocalDateTime, amount: TalerAmount) {
val stmt = conn.prepareStatement(
"CALL stats_register_payment('taler_out', ?::timestamp, (?, ?)::taler_amount, null)"
)
stmt.setObject(1, now)
stmt.setLong(2, amount.value)
stmt.setInt(3, amount.frac)
stmt.executeUpdate()
}
suspend fun check(
now: LocalDateTime,
timeframe: Timeframe,
which: Int?,
count: Long,
amount: TalerAmount
) {
val stmt = conn.prepareStatement("""
SELECT
taler_out_count
,(taler_out_volume).val as taler_out_volume_val
,(taler_out_volume).frac as taler_out_volume_frac
FROM stats_get_frame(?::timestamp, ?::stat_timeframe_enum, ?)
""")
stmt.setObject(1, now)
stmt.setString(2, timeframe.name)
if (which != null) {
stmt.setInt(3, which)
} else {
stmt.setNull(3, java.sql.Types.INTEGER)
}
stmt.oneOrNull {
val talerOutCount = it.getLong("taler_out_count")
val talerOutVolume = TalerAmount(
value = it.getLong("taler_out_volume_val"),
frac = it.getInt("taler_out_volume_frac"),
currency = "KUDOS"
)
assertEquals(count, talerOutCount, "taler count")
assertEquals(amount, talerOutVolume, "taler volume")
}!!
}
val now = LocalDateTime.now()
val otherHour = now.withHour((now.hour + 1) % 24)
val otherDay = now.withDayOfMonth((now.dayOfMonth) % 28 + 1)
val otherMonth = now.withMonth((now.monthValue) % 12 + 1)
val otherYear = now.minusYears(1)
register(now, TalerAmount("KUDOS:10.0"))
register(otherHour, TalerAmount("KUDOS:20.0"))
register(otherDay, TalerAmount("KUDOS:35.0"))
register(otherMonth, TalerAmount("KUDOS:40.0"))
register(otherYear, TalerAmount("KUDOS:50.0"))
// Check with timestamp and truncating
check(now, Timeframe.hour, null, 1, TalerAmount("KUDOS:10.0"))
check(otherHour, Timeframe.hour, null, 1, TalerAmount("KUDOS:20.0"))
check(otherDay, Timeframe.day, null, 1, TalerAmount("KUDOS:35.0"))
check(otherMonth, Timeframe.month, null, 1, TalerAmount("KUDOS:40.0"))
check(otherYear, Timeframe.year, null, 1, TalerAmount("KUDOS:50.0"))
// Check with timestamp and intervals
check(now, Timeframe.hour, now.hour, 1, TalerAmount("KUDOS:10.0"))
check(now, Timeframe.hour, otherHour.hour, 1, TalerAmount("KUDOS:20.0"))
check(now, Timeframe.day, otherDay.dayOfMonth, 1, TalerAmount("KUDOS:35.0"))
check(now, Timeframe.month, otherMonth.monthValue, 1, TalerAmount("KUDOS:40.0"))
check(now, Timeframe.year, otherYear.year, 1, TalerAmount("KUDOS:50.0"))
// Check timestamp aggregation
check(now, Timeframe.day, now.dayOfMonth, 2, TalerAmount("KUDOS:30.0"))
check(now, Timeframe.month, now.monthValue, 3, TalerAmount("KUDOS:65.0"))
check(now, Timeframe.year, now.year, 4, TalerAmount("KUDOS:105.0"))
check(now, Timeframe.day, null, 2, TalerAmount("KUDOS:30.0"))
check(now, Timeframe.month, null, 3, TalerAmount("KUDOS:65.0"))
check(now, Timeframe.year, null, 4, TalerAmount("KUDOS:105.0"))
}
}
}
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