Tcs bank parser

package tcs;


import java.util.Locale

import org.joda.time.DateTime
import org.joda.time.format.{DateTimeFormat, DateTimeFormatter}
import org.json4s.JsonAST.JObject
import org.json4s.native.JsonParser
import org.scalatest.FlatSpec
import ru.yandex.verba.core.util.VerbaUtils
import org.json4s.JsonAST._
import org.json4s.jackson.JsonMethods._
import ru.yandex.verba.core.util.JsonUtils._

import scala.io.Source

/**
 * Author: Evgeny Vanslov (evans@yandex-team.ru)
 * Created: 24.07.14
 */
class TcsTest extends FlatSpec {
  "" should "General billing info" in {
    case class Operation(descr: String, mcc: Int, amount: Double, cashback: Double, date: DateTime) {
      def returned = amount * cashback / 100.0
      override def toString: String = s"$returned $descr $mcc $amount $cashback  $date"
    }
    val json = JsonParser.parse(Source.fromFile("errors.json").getLines().mkString)
    val operations = (json \ "payload").children map {
      v =>
        val amount = (v \ "accountAmount" \ "value").extract[Double]
        val cashback = (v \ "cashback").extract[Double]
        val descr = (v \ "description").extract[String]
        val mcc = (v \ "mcc").extract[Int]
        val time = (v \ "operationTime" \ "milliseconds").extract[Long]
        Operation(descr, mcc, amount, cashback, new DateTime(time))
    }
    val parse = DateTime.parse("13.07.2014", DateTimeFormat.forPattern("dd.MM.yyyy").withLocale(Locale.US))
    val forReturnOperations = operations.filter(_.date.isBefore(parse)).filter(_.returned > 0).sortBy(_.returned)
    forReturnOperations.foreach(println)
    println(forReturnOperations.map(_.returned).sum)
    println(operations.size)
  }
}