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/** Copyright (c) 2016, Phil Rice. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
package org.cddcore.examples

import org.cddcore.engine.Engine

object Bowling {

  sealed abstract class Frame(val first: Int, val second: Int, val third: Int = 0, val size: Int = 2) {
    def score = first + second + third;
  }

  case class NormalFrame(f: Int, s: Int) extends Frame(f, s);

  case class SpareFrame(f: Int, s: Int, t: Int) extends Frame(f, s, t);

  case class StrikeFrame(f: Int, s: Int, t: Int) extends Frame(f, s, t, 1);

  //get returns the ith ball or zero
  val get = new Engine[(List[Int], Int), Int]("Get") {
    useCase("If index in range of list (i.e. the ball has been rolled, return ith item") {
      (List(7, 10, 4, 3), 0) produces 7 because { case (rolls, i) if i >= 0 && i < rolls.size => rolls(i) } //, "Start of legal range").expected(7).code((rolls: List[Int], i: Int) => rolls(i)).
      (List(7, 10, 4, 3), 3) produces 3 //, "End of legal range").expected(3).
    }
    useCase("If index is negative return zero") {
      (List(7, 10, 4, 3), -1) produces 0 when { case (_, i) => i < 0 } //, "First value below legal range").expected(0).code((rolls: List[Any], i: Int) => 0).because((rolls: List[Any], i: Int) => i < 0).
      (List(7, 10, 4, 3), -100) produces 0 // "Quite a lot below legal range").expected(0).
    }
    useCase("If index is too high return zero") {
      (List(7, 10, 4, 3), 4) produces 0 when { case (rolls, i) => i >= rolls.size } // "First value above legal range").expected(0).because((rolls: List[Any], i: Int) => i >= rolls.size).
      (List(7, 10, 4, 3), 100) produces 0 //, "Quite a lot above legal range").expected(0).build
    }
  }

  val makeFrame = new Engine[(List[Int], Int), Frame]("Bowling") {
    useCase("NormalFrames are produced when the two balls at and after the ith ball don't add up to 10") {
      (List(7, 2, 5, 5, 3, 0, 10, 2, 4), 0) produces NormalFrame(7, 2) because { case (rolls, i) => NormalFrame(get(rolls, i), get(rolls, i + 1)) }
      (List(7, 2, 5, 5, 3, 0, 10, 2, 4), 4) produces NormalFrame(3, 0)
    }

    useCase("Strike Frames are produced when the ith ball equals 10. They include the ith ball, and the next two balls") {
      (List(7, 2, 5, 5, 3, 0, 10, 2, 4), 6) produces StrikeFrame(10, 2, 4) because { case (rolls, i) if get(rolls, i) == 10 => StrikeFrame(get(rolls, i), get(rolls, i + 1), get(rolls, i + 2)) }
      (List(10), 0) produces StrikeFrame(10, 0, 0)
      (List(10, 10), 0) produces StrikeFrame(10, 10, 0)
      (List(10, 10, 10), 0) produces StrikeFrame(10, 10, 10)
    }

    useCase("Spare Frames are produced when the two balls at and after the ith ball add up to 10. They include the two balls, and the next ball") {
      (List(7, 2, 5, 5, 3, 0, 10, 2, 4), 2) produces SpareFrame(5, 5, 3) because { case (rolls, i) if get(rolls, i) + get(rolls, i + 1) == 10 => SpareFrame(get(rolls, i), get(rolls, i + 1), get(rolls, i + 2)) }
      (List(5, 5), 0) produces SpareFrame(5, 5, 0)
    }
  }

}

//  def main(args: Array[String]) {
////    println(get.toString)
////    println(makeFrame.toString)
//    val (r, pr) = Engine.profile(makeFrame(List(7, 2, 5, 5, 3, 0, 10, 2, 4), 2))
//    println(r)
//    println(pr.prettyString)
//  }