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/*
* This file is part of GNU Taler
* (C) 2020 Taler Systems S.A.
*
* GNU Taler is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 3, or (at your option) any later version.
*
* GNU Taler 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
package net.taler.merchantpos.refund
import androidx.annotation.UiThread
import androidx.lifecycle.LiveData
import androidx.lifecycle.MutableLiveData
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.launch
import net.taler.common.assertUiThread
import net.taler.lib.common.Amount
import net.taler.merchantlib.MerchantApi
import net.taler.merchantlib.OrderHistoryEntry
import net.taler.merchantlib.RefundRequest
import net.taler.merchantpos.config.ConfigManager
sealed class RefundResult {
class Error(val msg: String) : RefundResult()
object PastDeadline : RefundResult()
object AlreadyRefunded : RefundResult()
class Success(
val refundUri: String,
val item: OrderHistoryEntry,
val amount: Amount,
val reason: String
) : RefundResult()
}
class RefundManager(
private val configManager: ConfigManager,
private val scope: CoroutineScope,
private val api: MerchantApi
) {
var toBeRefunded: OrderHistoryEntry? = null
private set
private val mRefundResult = MutableLiveData<RefundResult?>()
internal val refundResult: LiveData<RefundResult?> = mRefundResult
@UiThread
internal fun startRefund(item: OrderHistoryEntry) {
toBeRefunded = item
mRefundResult.value = null
}
@UiThread
internal fun abortRefund() {
toBeRefunded = null
mRefundResult.value = null
}
@UiThread
internal fun refund(item: OrderHistoryEntry, amount: Amount, reason: String) = scope.launch {
val merchantConfig = configManager.merchantConfig!!
val request = RefundRequest(amount, reason)
api.giveRefund(merchantConfig, item.orderId, request).handle(::onRefundError) {
assertUiThread()
mRefundResult.value = RefundResult.Success(
refundUri = it.talerRefundUri,
item = item,
amount = amount,
reason = reason
)
}
}
@UiThread
private fun onRefundError(msg: String) {
assertUiThread()
if (msg.contains("2602")) {
mRefundResult.postValue(RefundResult.AlreadyRefunded)
} else mRefundResult.postValue(RefundResult.Error(msg))
}
}
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