require 'java'

java_import 'org.apollo.game.message.impl.FlashTabInterfaceMessage'
java_import 'org.apollo.game.message.impl.FlashingTabClickedMessage'
java_import 'org.apollo.game.message.impl.SwitchTabInterfaceMessage'

private

# Contains Survival Expert-related constants.
module SurvivalConstants

  # The Survival Expert Npc.
  @survival_expert = spawn_npc :name => :survival_expert, :x => 3104, :y => 3095, :face => :north

  # The inventory tab index.
  INVENTORY_TAB_INDEX = 3

  # The inventory tab id.
  INVENTORY_TAB_ID = 3213

  # The id of the tree the Player will cut down.
  TREE_ID = 3033

  # The id of the bronze axe.
  BRONZE_AXE = lookup_item(:bronze_axe)

  # The id of the tinderbox.
  TINDERBOX = lookup_item(:tinderbox)

end


# The conversation with the Survival Expert, when on tutorial island.
conversation :tutorial_surivival_expert do

  dialogue :introduction do
    type :npc_speech
    npc :survival_expert

    precondition { |player| player.tutorial_island_progress == :moving_around }

    text "Hello there, newcomer. My name is Brynna. My job is to teach you a few survival tips and tricks. First off we're "\
         "going to start with the most basic survival skill of all: making a fire."

    close &:add_survival_items
  end


  dialogue :hello_again do
    type :npc_speech
    npc :survival_expert

    precondition { |player| player.tutorial_island_progress == :moving_around }

    text "Hello again. I'm here to teach you a few survival tips and tricks. First off we're going to start with the most "\
         "basic survival skill of all: making a fire."

    close &:add_survival_items
  end

  # The dialogue displayed when the Survival Expert gives the player a bronze axe.
  dialogue :give_bronze_axe do
    type :message_with_item
    item :bronze_axe

    text "The Survival Expert gives you a bronze axe!"

    close { |player| TutorialInstructions.show_instruction(player) }
  end

  # The dialogue displayed when the Survival Expert gives the player a tinderbox.
  dialogue :give_tinderbox do
    type :message_with_item
    item :tinderbox

    text "The Survival Expert gives you a tinderbox!"

    close { |player| TutorialInstructions.show_instruction(player) }
  end

  # The dialogue displayed when the Survival Expert gives the player both a bronze axe and a tinderbox.
  dialogue :give_axe_and_tinderbox do
    type :message_with_item
    item :bronze_axe # TODO the tinderbox is also displayed - find this dialogue id. Scale looks like the default http://i.imgur.com/i1abN5X.png

    text "The Survival Expert gives you a tinderbox and a bronze axe!"
    
    close do |player|
      if (player.tutorial_island_progress < :given_axe)
        player.tutorial_island_progress = :given_axe
        player.send(SwitchTabInterfaceMessage.new(SurvivalConstants::INVENTORY_TAB_INDEX, SurvivalConstants::INVENTORY_TAB_ID))
        player.send(FlashTabInterfaceMessage.new(SurvivalConstants::INVENTORY_TAB_INDEX))
      end

      TutorialInstructions.show_instruction(player)
    end
  end

  # The dialogue displayed when the player has succesfully cut down a tree.
  dialogue :get_logs do
    type :message_with_item
    item :logs

    text "You get some logs."
    close { |player| TutorialInstructions.show_instruction(player) }
  end

end


# Add the survival items (bronze axe and tinderbox) to the inventory of the player, if they do not already have them.
def add_survival_items(player)
  inventory = player.inventory

  unless inventory.contains(SurvivalConstants::BRONZE_AXE)
    inventory.add(SurvivalConstants::BRONZE_AXE)
    dialogue = :give_bronze_axe
  end

  unless inventory.contains(SurvivalConstants::TINDERBOX)
    inventory.add(SurvivalConstants::TINDERBOX)
    dialogue = (dialogue == :give_bronze_axe) ? :give_axe_and_tinderbox : give_tinderbox
  end

  send_dialogue(player, get_dialogue(:tutorial_surivival_expert, dialogue))
end

# Intercept the FirstObjectActionMessage to send tutorial-only events if the player is chopping down a tree.
on :message, :first_object_action do |player, message|
  if (player.in_tutorial_island && message.id == SurvivalConstants::TREE_ID)
    progress = player.tutorial_island_progress
    if (progress < :cut_tree)
      # TODO display "You cannot cut down this tree; you must first follow the guide's instructions."
    elsif (player.tutorial_island_progress == :cut_tree)
      player.tutorial_island_progress = :cutting_tree # Don't break the chain, so that the Woodcutting event actually happens.
    end
  end
end

# Intercept the FlashingTabClickedMessage to update the player's progress, if applicable.
on :message, :flashing_tab_clicked do |player, message|
  if (player.in_tutorial_island && message.tab == SurvivalConstants::INVENTORY_TAB_INDEX && player.tutorial_island_progress == :given_axe)
    player.tutorial_island_progress = :cut_tree
    message.terminate
  end
end