refactor: extract HistoryViewModel into separate components

This commit is contained in:
2026-06-03 21:06:10 +02:00
parent ba96bde89c
commit 432cd0e478
4 changed files with 359 additions and 0 deletions
@@ -0,0 +1,60 @@
package com.bitcointxoko.gudariwallet.ui.history
import android.util.Log
import com.bitcointxoko.gudariwallet.api.PaymentRecord
import com.bitcointxoko.gudariwallet.data.PaymentCacheRepository
import com.bitcointxoko.gudariwallet.data.WalletRepository
import com.bitcointxoko.gudariwallet.ui.DetailState
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.StateFlow
import kotlinx.coroutines.launch
private const val TAG = "PaymentDetailDelegate"
class PaymentDetailDelegate(
private val repo : WalletRepository,
private val paymentCache : PaymentCacheRepository,
private val scope : CoroutineScope
) {
private val _state = MutableStateFlow<DetailState>(DetailState.Idle)
val state: StateFlow<DetailState> = _state
fun load(checkingId: String, record: PaymentRecord? = null) {
paymentCache.getCachedDetail(checkingId)?.let {
Log.d(TAG, "DETAIL [HIT] $checkingId — instant from cache")
_state.value = DetailState.Success(it)
return
}
_state.value = if (record != null) {
Log.d(TAG, "DETAIL [PAR] $checkingId — partial from PaymentRecord")
DetailState.Partial(record)
} else {
Log.d(TAG, "DETAIL [LOD] $checkingId — no record, showing spinner")
DetailState.Loading
}
scope.launch {
val fromDb = paymentCache.getDetailFromDb(checkingId)
if (fromDb != null) {
paymentCache.saveDetail(checkingId, fromDb)
_state.value = DetailState.Success(fromDb)
Log.d(TAG, "DETAIL [DB] $checkingId — served from Room")
return@launch
}
runCatching { repo.getPaymentDetail(checkingId) }
.onSuccess { detail ->
Log.d(TAG, "DETAIL [NET] $checkingId — fetched from network")
paymentCache.saveDetail(checkingId, detail)
_state.value = DetailState.Success(detail)
}
.onFailure { e ->
Log.w(TAG, "DETAIL [ERR] $checkingId${e.message}")
if (_state.value !is DetailState.Partial) {
_state.value = DetailState.Error(e.message ?: "Failed to load payment")
}
}
}
}
fun clear() { _state.value = DetailState.Idle }
}
@@ -0,0 +1,42 @@
package com.bitcointxoko.gudariwallet.ui.history
import android.util.Log
import com.bitcointxoko.gudariwallet.api.PaymentRecord
import com.bitcointxoko.gudariwallet.data.NodeAliasRepository
import com.bitcointxoko.gudariwallet.data.PaymentCacheRepository
import com.bitcointxoko.gudariwallet.data.WalletRepository
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.launch
private const val TAG = "PaymentEnricher"
class PaymentEnricher(
private val repo : WalletRepository,
private val aliasRepo : NodeAliasRepository,
private val paymentCache : PaymentCacheRepository,
private val scope : CoroutineScope,
private val onEnriched : (paymentHash: String, pubkey: String, alias: String?) -> Unit
) {
fun enrich(payments: List<PaymentRecord>) {
val candidates = payments.filter { it.isOutgoing }
if (candidates.isEmpty()) return
val toEnrich = candidates.filter { !it.bolt11.isNullOrBlank() && it.pubkey == null }
Log.d(TAG, "ENRICH [START ] ${toEnrich.size} payments to enrich " +
"(${candidates.size - toEnrich.size} already enriched or no bolt11)")
if (toEnrich.isEmpty()) return
scope.launch {
for (payment in toEnrich) {
val pubkey = runCatching {
repo.decodeBolt11(payment.bolt11!!).payee
}.getOrNull() ?: continue
val alias = runCatching {
aliasRepo.resolve(pubkey)
}.getOrNull()
paymentCache.updatePubkeyAlias(payment.paymentHash, pubkey, alias)
onEnriched(payment.paymentHash, pubkey, alias)
}
}
}
}
@@ -0,0 +1,62 @@
package com.bitcointxoko.gudariwallet.ui.history
import com.bitcointxoko.gudariwallet.api.PaymentRecord
import java.time.DayOfWeek
import java.time.ZonedDateTime
import java.time.temporal.ChronoUnit
data class PaymentFilter(
val searchQuery : String = "",
val direction : DirectionFilter = DirectionFilter.ALL,
val statuses : Set<StatusFilter> = emptySet(),
val types : Set<String> = emptySet(),
val minAmountSat : Long? = null,
val maxAmountSat : Long? = null,
val minCreatedAt : Long? = null,
val maxCreatedAt : Long? = null,
val datePreset : DatePreset? = null
)
enum class DirectionFilter { ALL, OUTGOING, INCOMING }
enum class StatusFilter { COMPLETED, PENDING, FAILED }
enum class DatePreset { THIS_WEEK, THIS_MONTH, THIS_YEAR }
val PaymentFilter.isActive: Boolean
get() = direction != DirectionFilter.ALL
|| statuses.isNotEmpty()
|| types.isNotEmpty()
|| minAmountSat != null
|| maxAmountSat != null
|| minCreatedAt != null
|| maxCreatedAt != null
fun PaymentFilter.needsRoomQuery(): Boolean =
searchQuery.isNotBlank() ||
statuses.isNotEmpty() ||
minAmountSat != null || maxAmountSat != null ||
minCreatedAt != null || maxCreatedAt != null
/** Resolves a [DatePreset] to a (epochSecondMin, epochSecondMax) pair. */
fun DatePreset.toEpochSecondRange(): Pair<Long, Long> {
val now = ZonedDateTime.now()
val start = when (this) {
DatePreset.THIS_WEEK -> now.with(DayOfWeek.MONDAY).truncatedTo(ChronoUnit.DAYS)
DatePreset.THIS_MONTH -> now.withDayOfMonth(1).truncatedTo(ChronoUnit.DAYS)
DatePreset.THIS_YEAR -> now.withDayOfYear(1).truncatedTo(ChronoUnit.DAYS)
}
return start.toEpochSecond() to now.toEpochSecond()
}
fun List<PaymentRecord>.applyInMemoryFilters(f: PaymentFilter): List<PaymentRecord> =
distinctBy { it.paymentHash }
.let { list ->
when (f.direction) {
DirectionFilter.ALL -> list
DirectionFilter.OUTGOING -> list.filter { it.isOutgoing }
DirectionFilter.INCOMING -> list.filter { !it.isOutgoing }
}
}
.let { list ->
if (f.types.isEmpty()) list
else list.filter { it.extra?.tag in f.types }
}
@@ -0,0 +1,195 @@
package com.bitcointxoko.gudariwallet.ui.history
import android.util.Log
import com.bitcointxoko.gudariwallet.api.PaymentRecord
import com.bitcointxoko.gudariwallet.data.PaymentCacheRepository
import com.bitcointxoko.gudariwallet.data.WalletRepository
import com.bitcointxoko.gudariwallet.ui.HistoryState
import com.bitcointxoko.gudariwallet.util.WalletConstants
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Job
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.StateFlow
import kotlinx.coroutines.launch
class PaymentSyncManager(
private val repo : WalletRepository,
private val paymentCache : PaymentCacheRepository,
private val scope : CoroutineScope,
private val onNewPayments: (List<PaymentRecord>) -> Unit
) {
private val TAG = "PaymentSyncManager"
val mutableState = MutableStateFlow<HistoryState>(HistoryState.Loading)
val state: StateFlow<HistoryState> = mutableState
var currentOffset = 0
private set
private var loadJob: Job? = null
// ── Init ──────────────────────────────────────────────────────────────────
fun init() {
scope.launch {
val cached = paymentCache.loadCachedPage(
offset = 0,
limit = WalletConstants.PAYMENTS_PAGE_SIZE
)
if (cached.isNotEmpty()) {
Log.d(TAG, "PAYMENTS [INIT ] Showing ${cached.size} cached payments immediately")
currentOffset = cached.size
mutableState.value = HistoryState.Success(
payments = cached.distinctBy { it.paymentHash },
canLoadMore = cached.size >= WalletConstants.PAYMENTS_PAGE_SIZE,
isRefreshing = true
)
} else {
Log.d(TAG, "PAYMENTS [INIT ] No cache — cold load")
}
syncNewPayments()
}
}
// ── Refresh ───────────────────────────────────────────────────────────────
fun refresh() {
loadJob?.cancel()
currentOffset = 0
val current = mutableState.value
mutableState.value = if (current is HistoryState.Success)
current.copy(isRefreshing = true)
else
HistoryState.Loading
scope.launch { syncNewPayments() }
}
// ── Load more ─────────────────────────────────────────────────────────────
fun loadMore(filteredCanLoadMore: () -> Boolean) {
if (loadJob?.isActive == true) return
if (!filteredCanLoadMore()) return
val current = mutableState.value
if (current !is HistoryState.Success || !current.canLoadMore) return
loadJob = scope.launch {
val fromDb = paymentCache.loadCachedPage(
offset = currentOffset,
limit = WalletConstants.PAYMENTS_PAGE_SIZE
)
if (fromDb.size == WalletConstants.PAYMENTS_PAGE_SIZE) {
Log.d(TAG, "PAYMENTS [MORE DB ] offset=$currentOffset — served ${fromDb.size} rows from Room")
val deduplicated = (current.payments + fromDb).distinctBy { it.paymentHash }
currentOffset += fromDb.size
val newState = HistoryState.Success(
payments = deduplicated,
canLoadMore = true,
isRefreshing = false
)
mutableState.value = newState
onNewPayments(newState.payments)
return@launch
}
Log.d(TAG, "PAYMENTS [MORE NET ] offset=$currentOffset — DB has ${fromDb.size}, fetching from network")
runCatching {
repo.getPayments(offset = currentOffset, limit = WalletConstants.PAYMENTS_PAGE_SIZE)
}.onSuccess { newPage ->
paymentCache.mergePayments(newPage)
val deduplicated = (current.payments + newPage).distinctBy { it.paymentHash }
currentOffset += newPage.size
val newState = HistoryState.Success(
payments = deduplicated,
canLoadMore = newPage.size >= WalletConstants.PAYMENTS_PAGE_SIZE,
isRefreshing = false
)
mutableState.value = newState
onNewPayments(newState.payments)
}.onFailure { e ->
Log.w(TAG, "PAYMENTS [MORE ERR ] ${e.message}")
mutableState.value = current.copy(isRefreshing = false)
}
}
}
// ── Sync loop ─────────────────────────────────────────────────────────────
suspend fun syncNewPayments(maxPayments: Int = WalletConstants.PAYMENTS_SYNC_CHECKPOINT) {
var syncOffset = 0
var totalNew = 0
var pagesChecked = 0
Log.d(TAG, "PAYMENTS [SYNC START] scanning for new payments (cap=$maxPayments)")
while (true) {
if (totalNew >= maxPayments) {
Log.d(TAG, "PAYMENTS [SYNC CAP ] reached $maxPayments payment limit — stopping early")
break
}
val page = runCatching {
repo.getPayments(offset = syncOffset, limit = WalletConstants.PAYMENTS_PAGE_SIZE)
}.getOrElse { e ->
val current = mutableState.value
if (current is HistoryState.Success) {
Log.w(TAG, "PAYMENTS [SYNC ERR ] ${e.message} — keeping cached list")
mutableState.value = current.copy(isRefreshing = false)
} else {
Log.w(TAG, "PAYMENTS [SYNC ERR ] ${e.message} — no cache to fall back on")
mutableState.value = HistoryState.Error(e.message ?: "Failed to load payments")
}
return
}
pagesChecked++
val overlapIndex = page.indexOfFirst { paymentCache.containsPayment(it.checkingId) }
val newPayments = if (overlapIndex == -1) page else page.subList(0, overlapIndex)
val allowedNew = maxPayments - totalNew
val toMerge = if (newPayments.size > allowedNew) newPayments.subList(0, allowedNew) else newPayments
if (toMerge.isNotEmpty()) {
paymentCache.mergePayments(toMerge)
totalNew += toMerge.size
val withTimestamp = toMerge.count { it.time.toLongOrNull() != null }
Log.d(TAG, "PAYMENTS [SYNC PAGE ] page $pagesChecked${toMerge.size} new payments merged ($withTimestamp with numeric timestamp)")
}
val reachedOverlap = overlapIndex != -1
val reachedEnd = page.size < WalletConstants.PAYMENTS_PAGE_SIZE
if (reachedOverlap || reachedEnd) {
Log.d(TAG, "PAYMENTS [SYNC DONE ] $totalNew new payment(s) across $pagesChecked page(s) — " +
if (reachedOverlap) "stopped at known record" else "reached end of history")
break
}
syncOffset += page.size
}
val refreshed = paymentCache.loadCachedPage(
offset = 0,
limit = currentOffset.coerceAtLeast(WalletConstants.PAYMENTS_PAGE_SIZE)
)
val merged = (refreshed + ((mutableState.value as? HistoryState.Success)?.payments ?: emptyList()))
.distinctBy { it.paymentHash }
val newState = HistoryState.Success(
payments = merged,
canLoadMore = refreshed.size >= currentOffset.coerceAtLeast(WalletConstants.PAYMENTS_PAGE_SIZE),
isRefreshing = false
)
mutableState.value = newState
onNewPayments(newState.payments)
}
fun updateEnrichedPayment(paymentHash: String, pubkey: String, alias: String?) {
val current = mutableState.value
if (current is HistoryState.Success) {
mutableState.value = current.copy(
payments = current.payments.map { p ->
if (p.paymentHash == paymentHash) p.copy(pubkey = pubkey, alias = alias) else p
}
)
}
}
}