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//: ----------------------------------------------------------------------------
//: Copyright (C) 2017 Verizon.  All Rights Reserved.
//:
//:   Licensed under the Apache License, Version 2.0 (the "License");
//:   you may not use this file except in compliance with the License.
//:   You may obtain a copy of the License at
//:
//:       http://www.apache.org/licenses/LICENSE-2.0
//:
//:   Unless required by applicable law or agreed to in writing, software
//:   distributed under the License is distributed on an "AS IS" BASIS,
//:   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//:   See the License for the specific language governing permissions and
//:   limitations under the License.
//:
//: ----------------------------------------------------------------------------
package nelson


package object notifications {

  import scalaz.{Monad,Free,~>}

  type SlackChannel = String

  def run[F[_]:Monad, A[_], B](i: A ~> F, op: Free.FreeC[A,B]): F[B] =
    Free.runFC(op)(i)

  def runOr[F[_]:Monad, A[_], B](i: Option[A ~> F], op: Free.FreeC[A,B])(b: => F[B]) =
    i.fold(b)(run(_,op))
}