local lib, oldminor = LibStub:NewLibrary("zzAddOn", 2)
if not lib then return end
oldminor = oldminor or 0
lib['callbacks'] = lib['callbacks'] or LibStub:GetLibrary("CallbackHandler-1.0"):New(lib)
lib['addons'] = lib['addons'] or {}
lib['events'] = lib['events'] or CreateFrame("FRAME")
local mixins = {'RegisterEvent','UnregisterEvent','IsClassic', 'GetSpecs'}
local events = lib['events']
function lib:GetSpecs(childName)
	if(self['specs']) then
		return self['specs'][childName]
	end
end
function lib:RegisterEvent(event)
	if(type(event) == 'table') then
		for ev, func in pairs(event) do
--		print("[zza] Registertab CB", type(ev),ev)
			if(type(ev) == 'string' and type(func) == 'function' and not self['events'][ev]) then
				self['events'][ev] = func
			end
			self:RegisterEvent(ev)
		end
	elseif(type(event) == 'string') then
--		print("[zza] Register CB", type(event),event)
		if(not lib['events']:IsEventRegistered(event)) then
			lib['events']:RegisterEvent(event)
		end
		lib['RegisterCallback'](self['events'], event)
	else
		print("ign reg", type(event), event)
	end
end
function lib:UnregisterEvent(event)
	if(type(event) == 'table') then
		for key, ev in pairs(event) do
			self:UnregisterEvent(ev)
		end
	else
		lib['UnregisterCallback'](self['events'], event)
	end
end
function lib:IsClassic()
	return WOW_PROJECT_ID == WOW_PROJECT_CLASSIC
end
function lib:NewAddOn(specs, addonName, addonTable)
	local childName = specs['name']
	addonTable['parentName'] = addonName
	addonTable['specs'] = addonTable['specs'] or {}
	addonTable['specs'][childName] = specs
	if(type(childName) == 'string') then
		lib['addons'][childName] = addonTable
		lib:Embed(addonTable)
		if(addonTable['events']) then
			for ev, func in pairs(addonTable['events']) do
				if(type(func) == 'function') then
--					print("[zza] Register", ev)
					addonTable:RegisterEvent(ev)
				end
			end
		end
		return lib['addons'][childName]
	end
end
function lib:Embed(target)
  for _,name in pairs(mixins) do
    target[name] = lib[name]
  end
end
for target, _ in pairs(lib['addons']) do
  lib:Embed(target)
end
lib['events']:RegisterEvent('ADDON_LOADED')
lib['events']:SetScript("OnEvent", function(self, event, ...)
--	print("[zza]", self, event, ...)
	local addonName = ...
	local addon = lib['addons'][addonName]
	if(addon) then
		if(event == 'ADDON_LOADED') then
			local specs = addon:GetSpecs(addonName)
			if(specs and specs['sv'] and not addon['db']) then
--				print('dbname',type(specs['sv']),type(specs['sv']) == 'boolean' and addonName or specs['sv'])
				local dbname = format('%sDB', type(specs['sv']) == 'boolean' and addonName or specs['sv'])
				addon['db'] = LibStub("AceDB-3.0"):New(dbname, type(specs['defaults']) == 'table' and specs['defaults'] or {}, 'Default')
				if(specs['ldb']) then
					local ldbobj = LibStub:GetLibrary("zzLDB"):AddLDB(specs['name'], specs['ldb'], addon['db'])
				end
				if(specs['cfg']) then
					local config = LibStub:GetLibrary("zzConfig")
					addon['options'] = config:InitConfig(addon, addonName)
					addon['options']['args']['profile'] = LibStub("AceDBOptions-3.0"):GetOptionsTable(addon['db'])
					if(type(specs['cfgReset']) == 'function') then
						addon['db'].RegisterCallback(specs, "OnProfileReset", 'cfgReset')
					end
				end
			end
		end
	end
--	print("[zza] Fire", event, ...)
	lib['callbacks']:Fire(event, ...)
end)