-----------------------------------------
--                                     --
--            ChatMultiWindow          --
--                                     --
-----------------------------------------

ChatMultiWindow = {
    ["name"] = "ChatMultiWindow",
    ["version"] = 1.1,
}
local ChatMultiWindow = ChatMultiWindow

local Defaults =
{
  NoFade = false,
}

function ChatMultiWindow.FixContainerAnchor(container)
	  container.windowContainer:ClearAnchors()
	  container.windowContainer:SetAnchor(TOPRIGHT, container.scrollUpButton, TOPLEFT, 0, 0)
	  container.windowContainer:SetAnchor(BOTTOMLEFT, container.windowContainer:GetParent(), BOTTOMLEFT, 20, -20)
end

local ChatEventFormatters = ZO_ChatSystem_GetEventHandlers()

function ChatMultiWindow.OnChatEvent(event, ...)
  -- Fix any windows that were loaded on startup
  for i=2, #CHAT_SYSTEM.containers do
    ChatMultiWindow.FixContainerAnchor(CHAT_SYSTEM.containers[i])
  end
  

	-- We don't need these anymore, so clear them
  for event in pairs(ChatEventFormatters) do
    EVENT_MANAGER:UnregisterForEvent(ChatMultiWindow.name.."_OnEventId" .. event)
  end
end

function ChatMultiWindow.FixEmptyContainers()
  if GetNumChatContainers() > 1 then
	  for i=GetNumChatContainers(), 2, -1  do
	      local numContainerTabs = GetNumChatContainerTabs(i)
	      if numContainerTabs == 0 then
	        DestroyContainer(CHAT_SYSTEM.containers[i])
	      end
	  end
  end
end

function ChatMultiWindow.AddonLoaded(event, name)
  if name ~= "ChatMultiWindow" then
	  return
	end
  CHAT_SYSTEM:SetAllowMultipleContainers(true)

  ChatMultiWindow.SavedVars = ZO_SavedVars:NewAccountWide(ChatMultiWindow.name.."_SavedVariables", 1, "internal", Defaults)

  ChatMultiWindow.FixEmptyContainers();

	-- Need to anchor the existing windows after everything is active, so use the first chat event
  for event in pairs(ChatEventFormatters) do
    EVENT_MANAGER:RegisterForEvent(ChatMultiWindow.name.."_OnEventId" .. event, event, ChatMultiWindow.OnChatEvent)
  end
end


-- Register addon
EVENT_MANAGER:RegisterForEvent(ChatMultiWindow.name.."_OnAddOnLoaded", EVENT_ADD_ON_LOADED, ChatMultiWindow.AddonLoaded)