queryNode

import dev.evo.elasticmagic.SearchQuery
import dev.evo.elasticmagic.aggs.HistogramAgg
import dev.evo.elasticmagic.aggs.TermsAgg
import dev.evo.elasticmagic.doc.Document
import dev.evo.elasticmagic.query.Bool
import dev.evo.elasticmagic.query.FunctionScore
import dev.evo.elasticmagic.query.FunctionScoreNode
import dev.evo.elasticmagic.query.MatchPhrase
import dev.evo.elasticmagic.query.MultiMatch
import dev.evo.elasticmagic.query.NodeHandle
import dev.evo.elasticmagic.query.QueryRescore
import dev.evo.elasticmagic.query.match

import kotlin.random.Random
fun main() { 
   //sampleStart 
   val BOOST_HANDLE = NodeHandle<FunctionScoreNode>()

searchQuery.query(
    FunctionScoreNode(
        BOOST_HANDLE,
        query = MultiMatch("system", listOf(UserDoc.name, UserDoc.about)),
        functions = listOf(
            FunctionScore.FieldValueFactor(
                UserDoc.rank,
                missing = 1.0F,
                factor = 2.0,
                modifier = FunctionScore.FieldValueFactor.Modifier.LN1P
            )
        ),
        scoreMode = FunctionScore.ScoreMode.SUM,
    )
)

val boostActive = Random.nextBoolean()
if (boostActive) {
    // Move active users the top
    searchQuery.queryNode(BOOST_HANDLE) {
        it.functions.add(
            FunctionScore.Weight(
                1000.0,
                filter = UserDoc.isActive.eq(true)
            )
        )
    }
} 
   //sampleEnd
}