package jp.ymir.taskReporter.core
import java.util.Calendar
import java.util.GregorianCalendar
import scala.util.matching.Regex

case class Task(
  date:                   Calendar,
  ticketID:               Option[Int],
  title:                  String,
  expectedCompletionDate: Calendar,
  deadline:               Option[Calendar],
  status:                 Task.Status,
  description:            Option[String]
)

object Task {
  import TSV._

  sealed abstract class Status
  object Status {
    case object DoingFine extends Status
    case object Lagging extends Status
    case object DeadlineChanged extends Status
    case object Completed extends Status
  }

  implicit def CalendarFromField = new FromField[Calendar] {
    val pattern = """^(\d{4})/(\d{2})/(\d{2})$""".r

    def parseField(f: Field): Calendar = {
      f match {
        case pattern(year, month, day) =>
          new GregorianCalendar(year.toInt, month.toInt, day.toInt)
      }
    }
  }

  implicit def StatusFromField = new FromField[Status] {
    def parseField(f: Field): Status = f match {
      case "順調"     => Status.DoingFine
      case "遅延"     => Status.Lagging
      case "期限変更" => Status.DeadlineChanged
      case "完了"     => Status.Completed
    }
  }

  implicit def TaskFromRecord = new FromRecord[Task] {
    def parseRecord(r: Record): Task = {
      return Task(
        date                   = parseField[Calendar](r('報告日)),
        ticketID               = parseField[Option[Int]](r('チケットID)),
        title                  = parseField[String](r('作業名)),
        expectedCompletionDate = parseField[Calendar](r('作業完了予定年月日)),
        deadline               = parseField[Option[Calendar]](r('タスク期限)),
        status                 = parseField[Status](r('状態)),
        description            = parseField[Option[String]](r('説明))
      )
    }
  }
}

/*
class Task(tsvLine: String) {
  sealed abstract class Status
  object Status {
    case object NoProgress extends Status
    case object DoingFine extends Status
    case object Lagging extends Status
    case object WillDelay extends Status
    case object DeadlineChanged extends Status
    case object Completed extends Status
  }

  class InvalidNumberOfColumnsException private(e: RuntimeException) extends RuntimeException(e) {
    def this(msg: String) = this(new RuntimeException(msg))
    def this(msg: String, cause: Throwable) = this(new RuntimeException(msg, cause))
  }

  private val cols = tsvLine.split("\\t")
  if (cols.length != 7) {
    throw new InvalidNumberOfColumnsException(tsvLine)
  }

  var date : Calendar = {
    val pattern = """^(?:報告日:)?(\d{4})/(\d{2})/(\d{2})$""".r
    cols(0) match {
      case pattern(year, month, day) =>
        new GregorianCalendar(year.toInt, month.toInt, day.toInt)
    }
  }

  var ticketID : Int = {
    val pattern = """^(?:チケットID:)?(\d+)$""".r
    cols(1) match {
      case pattern(id) => id.toInt
    }
  }

  var title : String = {
    val pattern = """^(?:作業名:)?(.*)$""".r
    cols(2) match {
      case pattern(title) => title
    }
  }

  var tentativeDeadline : Option[Calendar] = {
    val pattern = """^(?:仮期限:)?(\d{4})/(\d{2})/(\d{2})$""".r
    cols(3) match {
      case pattern(year, month, day) =>
        Some(new GregorianCalendar(year.toInt, month.toInt, day.toInt))
      case _ =>
        None
    }
  }

  var deadline : Option[Calendar] = {
    val pattern = """^(?:期限:)?(\d{4})/(\d{2})/(\d{2})$""".r
    cols(4) match {
      case pattern(year, month, day) =>
        Some(new GregorianCalendar(year.toInt, month.toInt, day.toInt))
      case _ =>
        None
    }
  }

  var status : Status = {
    val pattern = """^(?:状態:)?(.+)$""".r
    cols(5) match {
      case pattern(s) =>
        s match {
          case "未作業"   => Status.NoProgress
          case "順調"     => Status.DoingFine
          case "悪化"     => Status.Lagging
          case "遅延"     => Status.WillDelay
          case "期限変更" => Status.DeadlineChanged
          case "完了"     => Status.Completed
        }
    }
  }

  var supplement : String = {
    val pattern = """^(?:補足:)?(.*)$""".r
    cols(6) match {
      case pattern(title) => title
    }
  }
}
 */