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• idml-geo_2.12
• 63488a16f994d8c0416bab30ec9ef2b0304a03b5
• source code
• TimezoneFunction.scala

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io.idml.geo.TimezoneFunction.scala Maven / Gradle / Ivy

package io.idml.geo

import cats.effect._
import cats.implicits._
import doobie._
import doobie.hikari._
import doobie.implicits._
import io.idml._
import io.idml.ast.Pipeline
import io.idml.datanodes.{IInt, IObject, IString}
import io.idml.functions.IdmlFunction0
import net.iakovlev.timeshape.TimeZoneEngine

object TimezoneFunction {
  lazy val engine: TimeZoneEngine = TimeZoneEngine.initialize()

  def query(g: Geo): Option[String] = {
    engine.query(g.lat, g.long).map[Option[String]](r => Some(r.toString)).orElse(None)
  }

  case object TimezoneFunction extends IdmlFunction0 {
    override protected def apply(cursor: IdmlValue): IdmlValue = {
      cursor match {
        case g: Geo => query(g).map(IString).getOrElse(MissingField)
        case _      => InvalidParameters
      }
    }

    override def name: String = "timezone"
  }
}