the-algorithm/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/AddEntriesWithReplaceAndShowAlertAndShowCoverInstructionBuilder.scala

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package com.twitter.home_mixer.functional_component.decorator.urt.builder
import com.twitter.product_mixer.component_library.premarshaller.urt.builder.AlwaysInclude
import com.twitter.product_mixer.component_library.premarshaller.urt.builder.IncludeInstruction
import com.twitter.product_mixer.component_library.premarshaller.urt.builder.UrtInstructionBuilder
import com.twitter.product_mixer.core.model.marshalling.response.urt.AddEntriesTimelineInstruction
import com.twitter.product_mixer.core.model.marshalling.response.urt.Cover
import com.twitter.product_mixer.core.model.marshalling.response.urt.ShowAlert
import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineEntry
import com.twitter.product_mixer.core.pipeline.PipelineQuery
case class AddEntriesWithReplaceAndShowAlertAndCoverInstructionBuilder[Query <: PipelineQuery](
override val includeInstruction: IncludeInstruction[Query] = AlwaysInclude)
extends UrtInstructionBuilder[Query, AddEntriesTimelineInstruction] {
override def build(
query: Query,
entries: Seq[TimelineEntry]
): Seq[AddEntriesTimelineInstruction] = {
if (includeInstruction(query, entries)) {
val entriesToAdd = entries
.filterNot(_.isInstanceOf[ShowAlert])
.filterNot(_.isInstanceOf[Cover])
.filter(_.entryIdToReplace.isEmpty)
if (entriesToAdd.nonEmpty) Seq(AddEntriesTimelineInstruction(entriesToAdd))
else Seq.empty
} else
Seq.empty
}
}