local ListBox = require "core.modules.menusystem.listbox"
local Widget  = require "core.modules.menusystem.widgets"

local MenuConstructor = Object:extend()
local CharacterMenu   = ListBox:extend()

local CharMenuWidget  = Widget.Text:extend()
local SubMenuWidget   = CharMenuWidget:extend()

local MENUPOS_X1, MENUPOS_X2, MENUPOS_Y = 32, 32, 110
local MENU_WIDTH, MENU_ITEM_HEIGHT = 112, 17
local MENU_ITEM_NUMBER = 6

function MenuConstructor:new( controller )
  self.controller = controller
  self.controller.assets:addFont("small", "assets/gui/fonts/PixelOperator.ttf", 16)
end

function MenuConstructor:reconstruct(character)
  self.controller.menusystem:reset()
  self:build(character)

  self.controller.menusystem:switchMenu("BaseMenu")
end

function MenuConstructor:build(character)
  self:buildBaseMenu(character)
  self:buildSkillMenu(character)
end

function MenuConstructor:buildBaseMenu(character)
  CharacterMenu(self.controller, "BaseMenu", MENUPOS_X1 - 16, MENUPOS_Y)
  CharMenuWidget(self.controller, "BaseMenu", "Attaquer", "", character)
  CharMenuWidget(self.controller, "BaseMenu", "Techniques", "", character)
  CharMenuWidget(self.controller, "BaseMenu", "Objets", "", character)
  CharMenuWidget(self.controller, "BaseMenu", "Défendre", "", character)
  CharMenuWidget(self.controller, "BaseMenu", "Fuite", "", character)
  CharMenuWidget(self.controller, "BaseMenu", "Retour", "", character)

  self.controller.menusystem.menus["BaseMenu"]:setCancelWidget()
end

function MenuConstructor:set(currentCharacter)
  self:reconstruct(currentCharacter)
end

function MenuConstructor:buildSkillMenu(character)
  CharacterMenu(self.controller, "SkillMenu", MENUPOS_X1 - 16, MENUPOS_Y)
  local list = game.characters:getSkillList(character.charid)
  for k,v in pairs(list) do
    CharMenuWidget(self.controller, "SkillMenu", k, "", character)
  end
  CharMenuWidget(self.controller, "SkillMenu", "Retour", "", character)

  self.controller.menusystem.menus["SkillMenu"]:setCancelWidget()
end

function MenuConstructor:unset(  )
  self.isActive = false
end

function MenuConstructor:update(dt)
  if (self.isActive) then
  end
end

function MenuConstructor:sendSignal(menu, id)
  --print(self.menu[menu][id])
  self.isActive = false
  if (menu == 1) then
    self.character:getSignal(BaseMenu[id], 1)
  else
    self.character:getSignal(BaseMenu[menu], id)
  end
end

function MenuConstructor:draw()
  -- remove in order to avoid crash
end

-- CHARACTER_MENU
-- The actuals menus in the character menu

function CharacterMenu:new(scene, name, x, y)
  self.scene = scene
  local w, h = MENU_WIDTH, MENU_ITEM_NUMBER * MENU_ITEM_HEIGHT
  CharacterMenu.super.new(self, scene.menusystem, name, x, y, w, h, MENU_ITEM_NUMBER)
  self.cursorTexture = love.graphics.newImage("assets/gui/cursor-menulist.png")
  self.cursorTransition = 1
end

function CharacterMenu:update(dt)
  CharacterMenu.super.update(self, dt)

  local relativecursor = self.widget.selected - self.view.firstSlot

  local transition = self.cursorTransition - relativecursor

  if math.abs(transition) < 0.1 then
    self.cursorTransition = relativecursor
  else
    self.cursorTransition = (self.cursorTransition) + ((relativecursor) - (self.cursorTransition)) * dt*45
  end

end

function CharacterMenu:drawCursor()
  local addition = 17
  love.graphics.draw(self.cursorTexture, self.x + 4, self.y + (self.cursorTransition) * addition )
end

-- WIDGETS
-- All widgets used by the Characters menus

function CharMenuWidget:new(scene, menu_name, label1, label2, character)
  self.character = character
  self.menuname = menu_name
  self.scene    = scene
  local menu = scene.menusystem.menus[menu_name] or error("menu " ..menu_name .. " doesn't exist")
  local font = scene.assets.fonts["small"]
  CharMenuWidget.super.new(self, menu, font, label1)
  self.label2 = label2 or ""
end

function CharMenuWidget:drawCanvas()
  local h
  local asset = love.graphics.newImage("assets/gui/attacklist.png")
  love.graphics.draw(asset, 0, (self.height - 13) / 2)
  h = math.floor(self.height / 2) - (self.font:getHeight() / 2)
  love.graphics.setColor(0, 0, 0, .8)
  self.font:print(self.label, 17, h, "left")
  self.font:print(self.label2, self.width - 8, h, "right")
  utils.graphics.resetColor()
  self.font:print(self.label, 16, h, "left")
  self.font:print(self.label2, self.width - 9, h, "right")
end

function CharMenuWidget:action()
  self.character:getSignal(self.menuname, self.label)
  self.scene.menusystem:reset()
end

-- Submenu Widget

function SubMenuWidget:new(scene, menu_name, label, newmenu, character)
  SubMenuWidget.super.new(self, scene, menu_name, label, "", character)
  self.newmenu = newmenu or "BaseMenu"
end

function SubMenuWidget:action()
  self.scene.menusystem:switchMenu(newmenu)
end

return MenuConstructor