QaAuth.scala

package lila.qa

import lila.security.Granter
import lila.user.{ User, UserContext }
import org.joda.time.DateTime

object QaAuth {

  def canEdit(q: Question)(implicit ctx: UserContext) = noTroll { u =>
    (q ownBy u) || Granter(_.ModerateQa)(u)
  }

  def canEdit(a: Answer)(implicit ctx: UserContext) = noTroll { u =>
    (a ownBy u) || Granter(_.ModerateQa)(u)
  }

  def canAsk(implicit ctx: UserContext) = noTroll(isNotN00b)

  def canAnswer(q: Question)(implicit ctx: UserContext) = noTroll(isNotN00b)

  def canVote(implicit ctx: UserContext) = noTroll(isNotN00b)

  def canComment(implicit ctx: UserContext) = noTroll(isNotN00b)

  private def noTroll(block: User => Boolean)(implicit ctx: UserContext) =
    ctx.me.filterNot(_.troll) ?? block

  private def isNotN00b(u: User) = !isN00b(u)

  def isN00b(u: User) = u.createdAt isAfter DateTime.now.minusWeeks(1)
}