forked from fekt/hush-android-wallet
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103 lines
4.6 KiB
103 lines
4.6 KiB
package cash.z.ecc.android.ui.history
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import android.os.Bundle
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import android.view.LayoutInflater
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import android.view.View
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import androidx.fragment.app.activityViewModels
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import androidx.lifecycle.lifecycleScope
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import androidx.paging.PagedList
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import androidx.recyclerview.widget.LinearLayoutManager
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import androidx.recyclerview.widget.RecyclerView
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import cash.z.ecc.android.R
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import cash.z.ecc.android.databinding.FragmentHistoryBinding
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import cash.z.ecc.android.ext.*
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import cash.z.ecc.android.feedback.Report
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import cash.z.ecc.android.feedback.Report.Tap.HISTORY_BACK
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import cash.z.ecc.android.sdk.db.entity.ConfirmedTransaction
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import cash.z.ecc.android.sdk.ext.collectWith
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import cash.z.ecc.android.sdk.ext.toAbbreviatedAddress
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import cash.z.ecc.android.sdk.model.WalletBalance
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import cash.z.ecc.android.ui.base.BaseFragment
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import cash.z.ecc.android.util.twig
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import kotlinx.coroutines.flow.filterNotNull
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import kotlinx.coroutines.launch
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class HistoryFragment : BaseFragment<FragmentHistoryBinding>() {
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override val screen = Report.Screen.HISTORY
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private val viewModel: HistoryViewModel by activityViewModels()
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private lateinit var transactionAdapter: TransactionAdapter<ConfirmedTransaction>
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override fun inflate(inflater: LayoutInflater): FragmentHistoryBinding =
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FragmentHistoryBinding.inflate(inflater)
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override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
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twig("HistoryFragment.onViewCreated")
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super.onViewCreated(view, savedInstanceState)
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initTransactionUI()
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binding.backButtonHitArea.onClickNavUp { tapped(HISTORY_BACK) }
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lifecycleScope.launch {
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binding.textAddress.text = viewModel.getAddress().toAbbreviatedAddress(10, 10)
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}
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}
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override fun onResume() {
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twig("HistoryFragment.onResume")
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super.onResume()
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viewModel.balance.filterNotNull().collectWith(resumedScope) {
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onBalanceUpdated(it)
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}
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viewModel.transactions.collectWith(resumedScope) { onTransactionsUpdated(it) }
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}
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private fun onBalanceUpdated(balance: WalletBalance) {
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if (balance.available.value < 0) {
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binding.textBalanceAvailable.text = "Updating"
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return
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}
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binding.textBalanceAvailable.text = WalletZecFormmatter.toZecStringShort(balance.available)
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val change = balance.pending
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binding.textBalanceDescription.apply {
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goneIf(change.value <= 0L)
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val changeString = WalletZecFormmatter.toZecStringFull(change)
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val expecting = R.string.home_banner_expecting.toAppString(true)
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val symbol = getString(R.string.symbol)
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text = "($expecting +$changeString $symbol)".toColoredSpan(R.color.text_light, "+$changeString")
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}
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}
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private fun initTransactionUI() {
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twig("HistoryFragment.initTransactionUI")
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transactionAdapter = TransactionAdapter()
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transactionAdapter.stateRestorationPolicy =
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RecyclerView.Adapter.StateRestorationPolicy.PREVENT_WHEN_EMPTY
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binding.recyclerTransactions.apply {
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layoutManager = LinearLayoutManager(activity, LinearLayoutManager.VERTICAL, false)
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adapter = transactionAdapter
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}
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}
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private fun onTransactionsUpdated(transactions: List<ConfirmedTransaction>) {
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twig("HistoryFragment.onTransactionsUpdated")
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transactions.size.let { newCount ->
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twig("got a new paged list of transactions of length $newCount")
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binding.groupEmptyViews.goneIf(newCount > 0)
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// tricky: we handle two types of lists, empty and PagedLists. It's not easy to construct an empty PagedList so the SDK currently returns an emptyList() but that will not cast to a PagedList
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if (newCount == 0) {
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transactionAdapter.submitList(null)
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} else {
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// tricky: for now, explicitly fail (cast exception) if the transactions are not in a PagedList. Otherwise, this would silently fail to show items and be hard to debug if we're ever passed a non-empty list that isn't an instance of PagedList. This awkwardness will go away when we switch to Paging3
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transactionAdapter.submitList(transactions as PagedList<ConfirmedTransaction>)
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}
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}
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}
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// TODO: maybe implement this for better fade behavior. Or do an actual scroll behavior instead, yeah do that. Or an item decoration.
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fun onLastItemShown(item: ConfirmedTransaction, position: Int) {
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binding.footerFade.alpha = position.toFloat() / (binding.recyclerTransactions.adapter?.itemCount ?: 1)
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}
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}
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