import org.apollo.cache.def.ItemDefinition
import org.apollo.game.GameConstants
import org.apollo.game.action.ActionBlock
import org.apollo.game.action.AsyncDistancedAction
import org.apollo.game.message.impl.ObjectActionMessage
import org.apollo.game.model.Position
import org.apollo.game.model.World
import org.apollo.game.model.entity.Player
import org.apollo.game.model.entity.Skill
import org.apollo.game.model.entity.obj.GameObject
import org.apollo.game.plugin.skills.woodcutting.*
import org.apollo.game.plugins.api.*
import java.util.*
import java.util.concurrent.TimeUnit

class WoodcuttingTarget(val objectId: Int, val position: Position, val tree: Tree) {

    /**
     * Get the tree object in the world
     */
    fun getObject(world: World): Optional<GameObject> {
        val region = world.regionRepository.fromPosition(position)
        return region.findObject(position, objectId)
    }

    /**
     * Check if the tree was cut down
     */
    fun isCutDown(mob: Player): Boolean {
        return rand(100) <= tree.chance * 100
    }
}

class WoodcuttingAction(val player: Player, val tool: Axe, val target: WoodcuttingTarget) : AsyncDistancedAction<Player>(DELAY, true, player, target.position, TREE_SIZE) {

    companion object {
        private val DELAY = 0
        private val TREE_SIZE = 2
        private val MINIMUM_RESPAWN_TIME = 30L //In seconds

        /**
         * Find the highest level axe the player has
         */
        private fun axeFor(player: Player): Axe? {
            return Axe.getAxes()
                    .filter { it.level <= player.skills.woodcutting.currentLevel }
                    .filter { player.equipment.contains(it.id) || player.inventory.contains(it.id) }
                    .sortedByDescending { it.level }
                    .firstOrNull()
        }

        /**
         * Starts a [WoodcuttingAction] for the specified [Player], terminating the [Message] that triggered it.
         */
        fun start(message: ObjectActionMessage, player: Player, wood: Tree) {
            val axe = axeFor(player)
            if (axe != null) {
                if (player.inventory.freeSlots() == 0) {
                    player.inventory.forceCapacityExceeded()
                    return
                }

                val action = WoodcuttingAction(player, axe, WoodcuttingTarget(message.id, message.position, wood))
                player.startAction(action)
            } else {
                player.sendMessage("You do not have an axe for which you have the level to use.")
            }

            message.terminate()
        }
    }

    override fun action(): ActionBlock = {
        mob.turnTo(position)

        val level = mob.skills.woodcutting.currentLevel
        if (level < target.tree.level) {
            mob.sendMessage("You do not have the required level to cut down this tree.")
            stop()
        }

        while (isRunning) {
            mob.sendMessage("You swing your axe at the tree.")
            mob.playAnimation(tool.animation)

            wait(tool.pulses)

            //Check that the object exists in the world
            val obj = target.getObject(mob.world)
            if (!obj.isPresent) {
                stop()
            }

            if (mob.inventory.add(target.tree.id)) {
                val logName = Definitions.item(target.tree.id)?.name?.toLowerCase();
                mob.sendMessage("You managed to cut some $logName.")
                mob.skills.addExperience(Skill.WOODCUTTING, target.tree.exp)
            }

            if (target.isCutDown(mob)) {
                //respawn time: http://runescape.wikia.com/wiki/Trees
                val respawn = TimeUnit.SECONDS.toMillis(MINIMUM_RESPAWN_TIME + rand(150)) / GameConstants.PULSE_DELAY
                mob.world.expireObject(obj.get(), target.tree.stump, respawn.toInt())
                stop()
            }
        }
    }
}

on { ObjectActionMessage::class }
    .where { option == 1 }
    .then {
        val tree = Tree.lookup(id)
        if (tree != null) {
            WoodcuttingAction.start(this, it, tree)
        }
    }