package engine

import o1.adventure.Action
import o1.adventure.Area
import o1.adventure.Item
import o1.adventure.Player
import scala.Vector


class Adventure {

  /** The title of the adventure game. */
  val title = "Cook's Assistant Quest"

  private val castle      = new Area("Castle", "You are in the Lumbridge castle. You see the cook here.")
  private val frontYard   = new Area("Front yard", "You are in the front yard of the Lumbridge castle.")
  private val goblinField = new Area("Goblin field", "You are surrounded by goblins. Luckily they don't seem aggressive.")
  private val cowField    = new Area("Cow field", "You are in the cow field. You see plenty of cows. Maybe you should try to milk one of them.")
  private val chickenCoop = new Area("Chicken coop", "You are in a chicken coop. Chickens are flocking around you.")
  private val grainField  = new Area("Grain field", "You are in a grain field.")
  private val mill        = new Area("Mill", "You are in the mill. This could probably be used for making flour.")
  private val northCastle = new Area("North of castle", "You are north of the castle.")

  private val destination = castle

  private val egg     = new Item("battery", "It's a small battery cell. Looks new.")
  private val grain      = new Item("remote", "It's the remote control for your TV.\nWhat it was doing in the forest, you have no idea.\nProblem is, there's no battery.")
  private val bucket = ???
  private val pot = ???

  castle.setNeighbors(Vector("east" -> frontYard))
  frontYard.setNeighbors(Vector("north" -> northCastle, "east" -> goblinField, "west" -> castle))
  goblinField.setNeighbors(Vector("north" -> cowField, "west" -> frontYard))
  cowField.setNeighbors(Vector("north" -> chickenCoop, "south" -> goblinField, "west" -> northCastle))
  chickenCoop.setNeighbors(Vector("south" -> cowField))
  northCastle.setNeighbors(Vector("north" -> grainField, "east" -> goblinField, "south" -> frontYard))
  grainField.setNeighbors(Vector("south" -> northCastle, "west" -> mill))
  mill.setNeighbors(Vector("east" -> grainField))


  val player = new Player(castle)


  var turnCount = 0

  val timeLimit = 40


  def isComplete = this.player.location == this.destination && this.player.has("remote") && this.player.has("battery")

  def isOver = this.isComplete || this.player.hasQuit || this.turnCount == this.timeLimit

  def welcomeMessage = "You are lost in the woods. Find your way back home.\n\nBetter hurry, 'cause Scalatut elämät is on real soon now. And you can't miss Scalkkarit, right?"


  def goodbyeMessage = {
    if (this.isComplete)
      "Home at last... and phew, just in time! Well done!"
    else if (this.turnCount == this.timeLimit)
      "Oh no! Time's up. Starved of entertainment, you collapse and weep like a child.\nGame over!"
    else  // game over due to player quitting
      "Quitter!"
  }


  def playTurn(command: String) = {
    val action = new Action(command)
    val outcomeReport = action.execute(this.player)
    if (outcomeReport.isDefined) {
      this.turnCount += 1
    }
    outcomeReport.getOrElse("Unknown command: \"" + command + "\".")
  }


}