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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 com.android.volley.Request.Method.GET
import com.android.volley.RequestQueue
import com.android.volley.Response.ErrorListener
import com.android.volley.Response.Listener
import com.fasterxml.jackson.annotation.JsonIgnore
import com.fasterxml.jackson.annotation.JsonInclude
import com.fasterxml.jackson.annotation.JsonInclude.Include.NON_EMPTY
import com.fasterxml.jackson.annotation.JsonProperty
import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.module.kotlin.readValue
import net.taler.merchantpos.Amount
import net.taler.merchantpos.config.ConfigManager
import net.taler.merchantpos.config.MerchantRequest
import org.json.JSONObject
@JsonInclude(NON_EMPTY)
class Timestamp(
@JsonProperty("t_ms")
val ms: Long
)
data class HistoryItem(
@JsonProperty("order_id")
val orderId: String,
@JsonProperty("amount")
val amountStr: String,
val summary: String,
val timestamp: Timestamp
) {
@get:JsonIgnore
val amount: Amount by lazy { Amount.fromString(amountStr) }
@get:JsonIgnore
val time = timestamp.ms
}
sealed class HistoryResult {
object Error : HistoryResult()
class Success(val items: List<HistoryItem>) : HistoryResult()
}
class HistoryManager(
private val configManager: ConfigManager,
private val queue: RequestQueue,
private val mapper: ObjectMapper
) {
private val mIsLoading = MutableLiveData(false)
val isLoading: LiveData<Boolean> = mIsLoading
private val mItems = MutableLiveData<HistoryResult>()
val items: LiveData<HistoryResult> = mItems
@UiThread
internal fun fetchHistory() {
mIsLoading.value = true
val merchantConfig = configManager.merchantConfig!!
val params = mapOf("instance" to merchantConfig.instance)
val req = MerchantRequest(GET, merchantConfig, "history", params, null,
Listener { onHistoryResponse(it) },
ErrorListener { onHistoryError() })
queue.add(req)
}
@UiThread
private fun onHistoryResponse(body: JSONObject) {
mIsLoading.value = false
val items = arrayListOf<HistoryItem>()
val historyJson = body.getJSONArray("history")
for (i in 0 until historyJson.length()) {
val historyItem: HistoryItem = mapper.readValue(historyJson.getString(i))
items.add(historyItem)
}
mItems.value = HistoryResult.Success(items)
}
@UiThread
private fun onHistoryError() {
mIsLoading.value = false
mItems.value = HistoryResult.Error
}
}
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