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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.history
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.merchantlib.MerchantApi
import net.taler.merchantlib.OrderHistoryEntry
import net.taler.merchantpos.config.ConfigManager
sealed class HistoryResult {
class Error(val msg: String) : HistoryResult()
class Success(val items: List<OrderHistoryEntry>) : HistoryResult()
}
class HistoryManager(
private val configManager: ConfigManager,
private val scope: CoroutineScope,
private val api: MerchantApi
) {
private val mIsLoading = MutableLiveData(false)
val isLoading: LiveData<Boolean> = mIsLoading
private val mItems = MutableLiveData<HistoryResult>()
val items: LiveData<HistoryResult> = mItems
@UiThread
internal fun fetchHistory() = scope.launch {
mIsLoading.value = true
val merchantConfig = configManager.merchantConfig!!
api.getOrderHistory(merchantConfig).handle(::onHistoryError) {
assertUiThread()
mIsLoading.value = false
mItems.value = HistoryResult.Success(it.orders)
}
}
private fun onHistoryError(msg: String) {
assertUiThread()
mIsLoading.value = false
mItems.value = HistoryResult.Error(msg)
}
}
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