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81 lines
3.8 KiB
Scala
81 lines
3.8 KiB
Scala
package com.twitter.home_mixer.functional_component.selector
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import com.twitter.home_mixer.functional_component.selector.UpdateNewTweetsPillDecoration.NumAvatars
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import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
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import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
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import com.twitter.home_mixer.model.request.HasDeviceContext
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import com.twitter.home_mixer.param.HomeGlobalParams.EnableNewTweetsPillAvatarsParam
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import com.twitter.home_mixer.util.CandidatesUtil
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import com.twitter.product_mixer.component_library.model.candidate.ShowAlertCandidate
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import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
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import com.twitter.product_mixer.component_library.model.presentation.urt.UrtItemPresentation
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import com.twitter.product_mixer.core.functional_component.common.CandidateScope
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import com.twitter.product_mixer.core.functional_component.selector.Selector
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import com.twitter.product_mixer.core.functional_component.selector.SelectorResult
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import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
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import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
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import com.twitter.product_mixer.core.model.marshalling.response.urt.ShowAlert
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import com.twitter.product_mixer.core.model.marshalling.response.urt.richtext.RichText
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import com.twitter.product_mixer.core.pipeline.PipelineQuery
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import com.twitter.stringcenter.client.StringCenter
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import com.twitter.stringcenter.client.core.ExternalString
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object UpdateNewTweetsPillDecoration {
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val NumAvatars = 3
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}
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case class UpdateNewTweetsPillDecoration[Query <: PipelineQuery with HasDeviceContext](
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override val pipelineScope: CandidateScope,
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stringCenter: StringCenter,
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seeNewTweetsString: ExternalString,
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tweetedString: ExternalString)
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extends Selector[Query] {
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override def apply(
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query: Query,
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remainingCandidates: Seq[CandidateWithDetails],
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result: Seq[CandidateWithDetails]
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): SelectorResult = {
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val (alerts, otherCandidates) =
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remainingCandidates.partition(candidate =>
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candidate.isCandidateType[ShowAlertCandidate]() && pipelineScope.contains(candidate))
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val updatedCandidates = alerts
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.collectFirst {
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case newTweetsPill: ItemCandidateWithDetails =>
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val userIds = CandidatesUtil
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.getItemCandidatesWithOnlyModuleLast(result)
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.filter(candidate =>
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candidate.isCandidateType[TweetCandidate]() && pipelineScope.contains(candidate))
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.filterNot(_.features.getOrElse(IsRetweetFeature, false))
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.flatMap(_.features.getOrElse(AuthorIdFeature, None))
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.filterNot(_ == query.getRequiredUserId)
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.distinct
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val updatedPresentation = newTweetsPill.presentation.map {
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case presentation: UrtItemPresentation =>
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presentation.timelineItem match {
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case alert: ShowAlert =>
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val text = if (useAvatars(query, userIds)) tweetedString else seeNewTweetsString
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val richText = RichText(
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text = stringCenter.prepare(text),
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entities = List.empty,
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rtl = None,
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alignment = None)
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val updatedAlert =
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alert.copy(userIds = Some(userIds.take(NumAvatars)), richText = Some(richText))
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presentation.copy(timelineItem = updatedAlert)
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}
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}
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otherCandidates :+ newTweetsPill.copy(presentation = updatedPresentation)
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}.getOrElse(remainingCandidates)
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SelectorResult(remainingCandidates = updatedCandidates, result = result)
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}
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private def useAvatars(query: Query, userIds: Seq[Long]): Boolean = {
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val enableAvatars = query.params(EnableNewTweetsPillAvatarsParam)
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enableAvatars && userIds.size >= NumAvatars
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}
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}
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