package xyz.driver.pdsuidomain.formats.json.patient.label

import xyz.driver.pdsuidomain.entities.PatientLabel
import org.davidbild.tristate.Tristate
import org.davidbild.tristate.contrib.play.ToJsPathOpsFromJsPath
import play.api.data.validation.ValidationError
import play.api.libs.functional.syntax._
import play.api.libs.json._
import xyz.driver.pdsuicommon.domain.FuzzyValue

final case class ApiPartialPatientLabel(primaryValue: Option[String],
                                        verifiedPrimaryValue: Tristate[String]) {

  def applyTo(orig: PatientLabel): PatientLabel = {
    orig.copy(
      primaryValue = primaryValue.map(FuzzyValue.fromString).orElse(orig.primaryValue),
      verifiedPrimaryValue = verifiedPrimaryValue.cata(x => Some(FuzzyValue.fromString(x)), None, orig.verifiedPrimaryValue)
    )
  }

}

object ApiPartialPatientLabel {

  implicit val format: Format[ApiPartialPatientLabel] = (
    (JsPath \ "primaryValue").formatNullable[String](Format(
        Reads.of[String].filter(ValidationError("unknown primary value"))({
          case x if FuzzyValue.fromString.isDefinedAt(x) => true
          case _ => false
        }), Writes.of[String])) and
      (JsPath \ "verifiedPrimaryValue").formatTristate[String](Format(
        Reads.of[String].filter(ValidationError("unknown verified primary value"))({
          case x if FuzzyValue.fromString.isDefinedAt(x) => true
          case _ => false
        }), Writes.of[String]))
    ) (ApiPartialPatientLabel.apply, unlift(ApiPartialPatientLabel.unapply))

}