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39 lines
1.8 KiB
Scala
39 lines
1.8 KiB
Scala
package com.twitter.home_mixer.functional_component.filter
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import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
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import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
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import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
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import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CompetitorSetParam
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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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object OutOfNetworkCompetitorFilter extends Filter[PipelineQuery, TweetCandidate] {
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override val identifier: FilterIdentifier = FilterIdentifier("OutOfNetworkCompetitor")
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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 competitorAuthors = query.params(CompetitorSetParam)
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val (removed, kept) =
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candidates.partition(isOutOfNetworkTweetFromCompetitor(_, competitorAuthors))
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Stitch.value(FilterResult(kept = kept.map(_.candidate), removed = removed.map(_.candidate)))
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}
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def isOutOfNetworkTweetFromCompetitor(
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candidate: CandidateWithFeatures[TweetCandidate],
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competitorAuthors: Set[Long]
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): Boolean = {
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!candidate.features.getOrElse(InNetworkFeature, true) &&
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!candidate.features.getOrElse(IsRetweetFeature, false) &&
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candidate.features.getOrElse(AuthorIdFeature, None).exists(competitorAuthors.contains)
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}
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}
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