/*
* 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.wallet
import android.os.Bundle
import android.transition.TransitionManager.beginDelayedTransition
import android.util.Log
import android.view.LayoutInflater
import android.view.Menu
import android.view.MenuInflater
import android.view.MenuItem
import android.view.View
import android.view.View.GONE
import android.view.View.VISIBLE
import android.view.ViewGroup
import android.widget.TextView
import androidx.fragment.app.Fragment
import androidx.fragment.app.activityViewModels
import androidx.lifecycle.Observer
import androidx.recyclerview.widget.DividerItemDecoration
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.LinearLayoutManager.VERTICAL
import androidx.recyclerview.widget.RecyclerView.Adapter
import androidx.recyclerview.widget.RecyclerView.ViewHolder
import com.google.zxing.integration.android.IntentIntegrator
import com.google.zxing.integration.android.IntentIntegrator.QR_CODE
import kotlinx.android.synthetic.main.fragment_show_balance.*
import net.taler.wallet.BalanceAdapter.BalanceViewHolder
class BalanceFragment : Fragment() {
private val model: WalletViewModel by activityViewModels()
private val withdrawManager by lazy { model.withdrawManager }
private var reloadBalanceMenuItem: MenuItem? = null
private val balancesAdapter = BalanceAdapter()
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setHasOptionsMenu(true)
}
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
return inflater.inflate(R.layout.fragment_show_balance, container, false)
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
balancesList.apply {
layoutManager = LinearLayoutManager(context)
adapter = balancesAdapter
addItemDecoration(DividerItemDecoration(context, VERTICAL))
}
model.balances.observe(viewLifecycleOwner, Observer {
onBalancesChanged(it)
})
model.devMode.observe(viewLifecycleOwner, Observer { enabled ->
delayedTransition()
testWithdrawButton.visibility = if (enabled) VISIBLE else GONE
reloadBalanceMenuItem?.isVisible = enabled
})
testWithdrawButton.setOnClickListener {
withdrawManager.withdrawTestkudos()
}
withdrawManager.testWithdrawalInProgress.observe(viewLifecycleOwner, Observer { loading ->
Log.v("taler-wallet", "observing balance loading $loading in show balance")
testWithdrawButton.isEnabled = !loading
model.showProgressBar.value = loading
})
scanButton.setOnClickListener {
IntentIntegrator(activity).apply {
setPrompt("")
setBeepEnabled(true)
setOrientationLocked(false)
}.initiateScan(listOf(QR_CODE))
}
}
override fun onStart() {
super.onStart()
model.loadBalances()
}
override fun onOptionsItemSelected(item: MenuItem): Boolean {
return when (item.itemId) {
R.id.reload_balance -> {
model.loadBalances()
true
}
R.id.developer_mode -> {
item.isChecked = !item.isChecked
model.devMode.value = item.isChecked
true
}
else -> super.onOptionsItemSelected(item)
}
}
override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
inflater.inflate(R.menu.balance, menu)
menu.findItem(R.id.developer_mode).isChecked = model.devMode.value!!
reloadBalanceMenuItem = menu.findItem(R.id.reload_balance).apply {
isVisible = model.devMode.value!!
}
super.onCreateOptionsMenu(menu, inflater)
}
private fun onBalancesChanged(balances: List) {
delayedTransition()
if (balances.isEmpty()) {
balancesEmptyState.visibility = VISIBLE
balancesList.visibility = GONE
} else {
balancesAdapter.setItems(balances)
balancesEmptyState.visibility = GONE
balancesList.visibility = VISIBLE
}
}
private fun delayedTransition() {
beginDelayedTransition(view as ViewGroup)
}
}
class BalanceAdapter : Adapter() {
private var items = emptyList()
init {
setHasStableIds(false)
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BalanceViewHolder {
val v =
LayoutInflater.from(parent.context).inflate(R.layout.list_item_balance, parent, false)
return BalanceViewHolder(v)
}
override fun getItemCount() = items.size
override fun onBindViewHolder(holder: BalanceViewHolder, position: Int) {
val item = items[position]
holder.bind(item)
}
fun setItems(items: List) {
this.items = items
this.notifyDataSetChanged()
}
class BalanceViewHolder(private val v: View) : ViewHolder(v) {
private val currencyView: TextView = v.findViewById(R.id.balance_currency)
private val amountView: TextView = v.findViewById(R.id.balance_amount)
private val balanceInboundAmount: TextView = v.findViewById(R.id.balanceInboundAmount)
private val balanceInboundLabel: TextView = v.findViewById(R.id.balanceInboundLabel)
fun bind(item: BalanceItem) {
currencyView.text = item.available.currency
amountView.text = item.available.amountStr
val amountIncoming = item.pendingIncoming
if (amountIncoming.isZero()) {
balanceInboundAmount.visibility = GONE
balanceInboundLabel.visibility = GONE
} else {
balanceInboundAmount.visibility = VISIBLE
balanceInboundLabel.visibility = VISIBLE
balanceInboundAmount.text =
v.context.getString(R.string.balances_inbound_amount, amountIncoming)
}
}
}
}