local SelectionSystem = Object:extend()

function SelectionSystem:new(owner, fighterSide, onlyAlive)
  self.fighterList = fighterSide:getTargets(onlyAlive)
  self.owner = owner
  self.assets = self.owner.assets
  self.selectedTarget = 1
end

function SelectionSystem:update(dt)
  --Faire en sorte que cela permette de choisir la cible
  local keys = self.owner.turnSystem.scene:getKeys(1)
  self:purgeTarget()
  if (keys["up"].isPressed) then
    if (self.selectedTarget == 1) then
      self.selectedTarget = #self.fighterList
    else
      self.selectedTarget = self.selectedTarget - 1
    end
    self.assets.sfx["mBeep"]:play()
  end
  if (keys["down"].isPressed) then
    if (self.selectedTarget == #self.fighterList) then
      self.selectedTarget = 1
    else
      self.selectedTarget = self.selectedTarget + 1
    end
    self.assets.sfx["mBeep"]:play()
  end

  self:updateTarget()

  if (keys["A"].isPressed) then
    self.assets.sfx["mSelect"]:play()
    self:selectTarget()
  end

  if (keys["B"].isPressed) then
    self.assets.sfx["mBack"]:play()
    self:goBack()
  end

end

function SelectionSystem:purgeTarget()
  local target = self.fighterList[self.selectedTarget]
  target.actor.isSelected = false
end

function SelectionSystem:updateTarget()
  local target = self.fighterList[self.selectedTarget]
  target.actor.isSelected = true
end

function SelectionSystem:selectTarget()
  self:purgeTarget()
  self.owner:receiveTarget(self.fighterList[self.selectedTarget])
end

function SelectionSystem:goBack()
  self:purgeTarget()
  self.owner:goBackToMenu()
end

return SelectionSystem