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41 lines
1.9 KiB
Scala
41 lines
1.9 KiB
Scala
package com.twitter.home_mixer.product.scored_tweets.filter
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import com.twitter.home_mixer.model.HomeFeatures.EarlybirdFeature
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import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
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import com.twitter.home_mixer.util.ReplyRetweetUtil
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import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
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import com.twitter.product_mixer.core.functional_component.filter.Filter
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import com.twitter.product_mixer.core.functional_component.filter.FilterResult
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import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
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import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
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import com.twitter.product_mixer.core.pipeline.PipelineQuery
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import com.twitter.stitch.Stitch
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/**
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* This filter removes source tweets of retweets, added via second EB call in TLR
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*/
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object RetweetSourceTweetRemovingFilter extends Filter[PipelineQuery, TweetCandidate] {
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override val identifier: FilterIdentifier = FilterIdentifier("RetweetSourceTweetRemoving")
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override def apply(
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query: PipelineQuery,
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candidates: Seq[CandidateWithFeatures[TweetCandidate]]
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): Stitch[FilterResult[TweetCandidate]] = {
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val (kept, removed) =
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candidates.partition(
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_.features.getOrElse(EarlybirdFeature, None).exists(_.isSourceTweet)) match {
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case (sourceTweets, nonSourceTweets) =>
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val inReplyToTweetIds: Set[Long] =
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nonSourceTweets
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.filter(ReplyRetweetUtil.isEligibleReply(_)).flatMap(
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_.features.getOrElse(InReplyToTweetIdFeature, None)).toSet
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val (keptSourceTweets, removedSourceTweets) = sourceTweets
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.map(_.candidate)
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.partition(candidate => inReplyToTweetIds.contains(candidate.id))
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(nonSourceTweets.map(_.candidate) ++ keptSourceTweets, removedSourceTweets)
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}
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Stitch.value(FilterResult(kept = kept, removed = removed))
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}
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}
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