/*
* 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
*/
package net.taler.merchantpos.history
import androidx.annotation.UiThread
import androidx.lifecycle.LiveData
import androidx.lifecycle.MutableLiveData
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
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) : HistoryResult()
}
class HistoryManager(
private val configManager: ConfigManager,
private val scope: CoroutineScope,
private val api: MerchantApi
) {
private val mIsLoading = MutableLiveData(false)
val isLoading: LiveData = mIsLoading
private val mItems = MutableLiveData()
val items: LiveData = mItems
@UiThread
internal fun fetchHistory() {
mIsLoading.value = true
val merchantConfig = configManager.merchantConfig!!
scope.launch(Dispatchers.IO) {
api.getOrderHistory(merchantConfig).handle(::onHistoryError) {
mIsLoading.postValue(false)
mItems.postValue(HistoryResult.Success(it.orders))
}
}
}
private fun onHistoryError(msg: String) = scope.launch(Dispatchers.Main) {
mIsLoading.value = false
mItems.value = HistoryResult.Error(msg)
}
}