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improve flow stream

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This commit is contained in:
Florian Renaud 2022-11-25 15:32:29 +01:00
parent 4427156f0b
commit aa53105f17
1 changed files with 7 additions and 10 deletions
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17
vector/src/main/java/im/vector/app/features/voicebroadcast/usecase/GetMostRecentVoiceBroadcastStateEventUseCase.kt
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@ -27,7 +27,6 @@ import kotlinx.coroutines.flow.drop
import kotlinx.coroutines.flow.filter
import kotlinx.coroutines.flow.flatMapLatest
import kotlinx.coroutines.flow.flowOf
import kotlinx.coroutines.flow.map
import kotlinx.coroutines.flow.onEach
import kotlinx.coroutines.flow.onStart
import kotlinx.coroutines.flow.transformWhile
@ -76,17 +75,15 @@ class GetMostRecentVoiceBroadcastStateEventUseCase @Inject constructor(
// otherwise, observe most recent event changes
getMostRecentRelatedEventFlow(room, voiceBroadcast)
.transformWhile { mostRecentEvent ->
emit(mostRecentEvent)
mostRecentEvent.hasValue()
}
.map {
if (!it.hasValue()) {
// no most recent event, fallback to started event
startedEvent
val hasValue = mostRecentEvent.hasValue()
if (hasValue) {
// keep the most recent event
emit(mostRecentEvent)
} else {
// otherwise, keep the most recent event
it
// no most recent event, fallback to started event
emit(startedEvent)
}
hasValue
}
}
}