mckenziemc@8: 
mckenziemc@0: 
mckenziemc@0: 
mckenziemc@0: local addonName, addonTable = ...
mckenziemc@0: 
mckenziemc@0: 
mckenziemc@14: --	NOTE: current contents of this file are no longer used
mckenziemc@10: if true then
mckenziemc@10: 	return
mckenziemc@10: end
mckenziemc@10: 
mckenziemc@0: local Core, core = addonTable:NewClass("Core")
mckenziemc@0: 
mckenziemc@0: 
mckenziemc@0: function Core:New()
mckenziemc@0: 	local instance = {}
mckenziemc@0: 	setmetatable(instance, self.instanceMetatable)
mckenziemc@0: 	
mckenziemc@0: 	instance.addons = {}
mckenziemc@0: 	instance.nameToIndex = {}
mckenziemc@0: 	
mckenziemc@0: 	for i=1,GetNumAddOns() do
mckenziemc@0: 		local newAddon = Addon:New(i)
mckenziemc@0: 		
mckenziemc@0: 		instance.addons[i] = newAddon
mckenziemc@0: 		instance.nameToIndex[newAddon:GetName()] = i
mckenziemc@0: 	end
mckenziemc@0: 	
mckenziemc@0: 	--	TODO: enable dependencies for any addons that have already loaded
mckenziemc@0: 	
mckenziemc@0: 	return instance
mckenziemc@0: end
mckenziemc@0: 
mckenziemc@0: 
mckenziemc@0: --	@param	addon	Name or index of the addon to retrieve.
mckenziemc@0: --	@return 		The addon object, or nil if not found
mckenziemc@0: function core:GetAddon(addon)
mckenziemc@0: 	if not Addon:Exists(addon) then
mckenziemc@0: 		return nil
mckenziemc@0: 	end
mckenziemc@0: 	
mckenziemc@0: 	local index
mckenziemc@0: 
mckenziemc@0: 	if type(addon) == "string" then
mckenziemc@0: 		index = self.nameToIndex[addon]
mckenziemc@0: 	elseif type(addon) == "number" then
mckenziemc@0: 		index = addon
mckenziemc@0: 	end
mckenziemc@0: 	
mckenziemc@0: 	return self.addons[index]
mckenziemc@0: end	
mckenziemc@0: 
mckenziemc@0: 
mckenziemc@0: --	Checks if the tree rooted at the specified addon can be force-loaded.
mckenziemc@0: --	@param	root	The name or index of the root addon.
mckenziemc@0: function core:CanForceLoadTree(root)
mckenziemc@0: 	--	convert root to an Addon object
mckenziemc@0: 	root = self:GetAddon(root)
mckenziemc@0: 	assert(root)
mckenziemc@0: 	
mckenziemc@0: 	if root:IsLoaded() then
mckenziemc@0: 		return true
mckenziemc@0: 	end
mckenziemc@0: 	
mckenziemc@0: 	--	check if the root itself can be force-loaded
mckenziemc@0: 	if not root:CanForceLoad() then
mckenziemc@0: 		return false
mckenziemc@0: 	end
mckenziemc@0: 	
mckenziemc@0: 	--	now check dependencies recursively
mckenziemc@0: 	--	FIXME: prevent infinite recursion
mckenziemc@0: 
mckenziemc@0: 	local dependencies = {root:GetDependencies()}
mckenziemc@0: 	for i, depName in pairs(dependencies) do
mckenziemc@0: 		local dep = self:GetAddon(depName)
mckenziemc@0: 		
mckenziemc@0: 		if dep == nil then
mckenziemc@0: 			return false		--	missing dependency
mckenziemc@0: 		end
mckenziemc@0: 		
mckenziemc@0: 		--	if it's already loaded then skip to next one
mckenziemc@0: 		if not dep:IsLoaded() then
mckenziemc@0: 			if not self:CanForceLoadTree(depName) then
mckenziemc@0: 				return false
mckenziemc@0: 			end
mckenziemc@0: 		end
mckenziemc@0: 	end
mckenziemc@0: 	
mckenziemc@0: 	return true
mckenziemc@0: end
mckenziemc@0: 
mckenziemc@0: --	NOTE: any tree that can be loaded on demand is also eligible for force-loading
mckenziemc@0: --	Checks if the tree rooted at the specified addon can be loaded on demand.
mckenziemc@0: --	@param	root	The name or index of the root addon.
mckenziemc@0: function core:CanLoDTree(root)
mckenziemc@0: 	root = self:GetAddon(root)
mckenziemc@0: 	assert(root)
mckenziemc@0: 
mckenziemc@0: 	--	since this will be used recursively, return true if 
mckenziemc@0: 	--	this is already loaded.
mckenziemc@0: 	if root:IsLoaded() then
mckenziemc@0: 		return true
mckenziemc@0: 	end
mckenziemc@0: 	
mckenziemc@0: 	--	true if all dependencies are loaded or LoD
mckenziemc@0: 	
mckenziemc@0: 	if not root:CanLoD() then
mckenziemc@0: 		return false
mckenziemc@0: 	end
mckenziemc@0: 	
mckenziemc@0: 	--	now check dependencies recursively
mckenziemc@0: 	local dependencies = {root:GetDependencies()}
mckenziemc@0: 	for i, depName in pairs(dependencies) do
mckenziemc@0: 		local dep = self:GetAddon(depName)
mckenziemc@0: 		
mckenziemc@0: 		if not dep then
mckenziemc@0: 			return false		--	missing
mckenziemc@0: 		end
mckenziemc@0: 		
mckenziemc@0: 		if not dep:IsLoaded() then
mckenziemc@0: 			if not self:CanLoDTree(depName) then
mckenziemc@0: 				return false
mckenziemc@0: 			end
mckenziemc@0: 		end
mckenziemc@0: 	end
mckenziemc@0: 	
mckenziemc@0: 	return true
mckenziemc@0: end
mckenziemc@0: 
mckenziemc@0: 
mckenziemc@0: --	Checks if the tree rooted at the specified addon 
mckenziemc@0: --	can be loaded if all dependencies are enabled 
mckenziemc@0: --	the UI is reloaded.
mckenziemc@0: --	Basically makes sure all dependencies are installed.
mckenziemc@0: function core:CanReloadTree(root)
mckenziemc@0: 	--	convert root to an Addon object
mckenziemc@0: 	root = self:GetAddon(root)
mckenziemc@0: 	assert(root)
mckenziemc@0: 	
mckenziemc@0: 	if root:IsLoaded() then
mckenziemc@0: 		return true
mckenziemc@0: 		--	FIXME: 	deps may have been disabled
mckenziemc@0: 	end
mckenziemc@0: 	
mckenziemc@0: 	--	TODO: make sure the root isn't incompatible
mckenziemc@0: 	
mckenziemc@0: 	--	now check dependencies recursively
mckenziemc@0: 	--	FIXME: prevent infinite recursion
mckenziemc@0: 
mckenziemc@0: 	local dependencies = {root:GetDependencies()}
mckenziemc@0: 	for i, depName in pairs(dependencies) do
mckenziemc@0: 		local dep = self:GetAddon(depName)
mckenziemc@0: 		
mckenziemc@0: 		if dep == nil then
mckenziemc@0: 			return false		--	missing dependency
mckenziemc@0: 		end
mckenziemc@0: 
mckenziemc@0: 		--	TODO: make sure it's compatible
mckenziemc@0: 	end
mckenziemc@0: 	
mckenziemc@0: 	return true
mckenziemc@0: end
mckenziemc@0: 
mckenziemc@0: --	Loads the tree rooted at the specified addon.
mckenziemc@0: --	FIXME: load the root too or not?
mckenziemc@0: --	Supports both LoD addons and those that require force-loading.
mckenziemc@0: function core:LoadTree(addon)
mckenziemc@0: 	--	don't check if the tree can actually be loaded.
mckenziemc@0: 	--	external code should do that itself to check if it 
mckenziemc@0: 	--	should even call this at all.
mckenziemc@0: 
mckenziemc@0: 	if self:ForceLoadAvailable() then
mckenziemc@0: 		--	LoD trees can also be force-loaded
mckenziemc@0: 		self:ForceLoadTree(addon)
mckenziemc@0: 	else
mckenziemc@0: 		self:LoadLoDTree(addon)
mckenziemc@0: 	end
mckenziemc@0: end
mckenziemc@0: 
mckenziemc@0: 
mckenziemc@0: --	load the root too, since it may actually be a leaf
mckenziemc@0: function core:ForceLoadTree(root)
mckenziemc@0: 	root = self:GetAddon(root)
mckenziemc@0: 	assert(root)
mckenziemc@0: 	
mckenziemc@0: 	--	load dependencies
mckenziemc@0: 	local dependencies = {root:GetDependencies(addon)}
mckenziemc@0: 	for i, depName in pairs(dependencies) do
mckenziemc@0: 		self:ForceLoadTree(depName)
mckenziemc@0: 	end
mckenziemc@0: 
mckenziemc@0: 	--	load embeds, if they are available separately
mckenziemc@0: 	local embeds = {root:GetEmbeds(addon)}
mckenziemc@0: 	for i, embedName in pairs(embeds) do
mckenziemc@0: 		if Addon:Exists(embedName) then
mckenziemc@0: 			self:ForceLoadTree(embedName)
mckenziemc@0: 		end
mckenziemc@0: 	end
mckenziemc@0: 	
mckenziemc@0: 	root:ForceLoad()
mckenziemc@0: end
mckenziemc@0: 
mckenziemc@0: 
mckenziemc@0: function core:LoadLoDTree(root)
mckenziemc@0: 	root = self:GetAddon(root)
mckenziemc@0: 	assert(root)
mckenziemc@0: 	
mckenziemc@0: 	--	load dependencies
mckenziemc@0: 	local dependencies = {root:GetDependencies(addon)}
mckenziemc@0: 	for i, depName in pairs(dependencies) do
mckenziemc@0: 		self:LoadLoDTree(depName)
mckenziemc@0: 	end
mckenziemc@0: 
mckenziemc@0: 	--	load embeds, if they are available separately
mckenziemc@0: 	local embeds = {root:GetEmbeds(addon)}
mckenziemc@0: 	for i, embedName in pairs(embeds) do
mckenziemc@0: 		if Addon:Exists(embedName) then
mckenziemc@0: 			self:LoadLoDTree(embedName)
mckenziemc@0: 		end
mckenziemc@0: 	end
mckenziemc@0: 	
mckenziemc@0: 	root:LoD()
mckenziemc@0: end
mckenziemc@0: 
mckenziemc@0: 
mckenziemc@0: --	I think the problem this solves is a major issue with 
mckenziemc@0: --	migrating to separate libs. think about it more and document 
mckenziemc@0: --	here and in project description
mckenziemc@0: function core:PrepareLoDTree(root)
mckenziemc@0: 	root = self:GetAddon(root)
mckenziemc@0: 	assert(root)
mckenziemc@0: 	
mckenziemc@0: 	--	assume root is LoD
mckenziemc@0: 	
mckenziemc@0: 	--	check dependencies
mckenziemc@0: 	local dependencies = {root:GetDependencies(addon)}
mckenziemc@0: 	for i, depName in pairs(dependencies) do
mckenziemc@0: 		local dep = self:GetAddon(depName)
mckenziemc@0: 		
mckenziemc@0: 		--	assume external code made sure it exists
mckenziemc@0: 		
mckenziemc@0: 		if dep:CanLoD() then
mckenziemc@0: 			--	don't load it now but make sure its dependencies are prepared
mckenziemc@0: 			self:PrepareLoDTree(depName)
mckenziemc@0: 		else
mckenziemc@0: 			--	FIXME: if it's already loaded
mckenziemc@0: 			--	force-load it now so we can load the parent on demand
mckenziemc@0: 			self:ForceLoadTree(depName)
mckenziemc@0: 		end
mckenziemc@0: 	end
mckenziemc@0: 
mckenziemc@0: 	--	prepare embeds, if they are available separately
mckenziemc@0: 	local embeds = {root:GetEmbeds(addon)}	--	FIXME: addon?
mckenziemc@0: 	for i, embedName in pairs(embeds) do
mckenziemc@0: 		local embed = self:GetAddon(embedName)
mckenziemc@0: 		
mckenziemc@0: 		if embed then
mckenziemc@0: 			if embed:CanLoD() then
mckenziemc@0: 				--	don't load it now but make sure its dependencies are prepared
mckenziemc@0: 				self:PrepareLoDTree(embedName)
mckenziemc@0: 			else
mckenziemc@0: 				--	FIXME: if it's already loaded
mckenziemc@0: 				--	force-load it now so we can load the parent on demand
mckenziemc@0: 				self:ForceLoadTree(depName)
mckenziemc@0: 			end
mckenziemc@0: 		end
mckenziemc@0: 	end
mckenziemc@0: end
mckenziemc@0: 
mckenziemc@0: 
mckenziemc@0: function Core:PrepareReloadTree(addon)
mckenziemc@0: 	root = self:GetAddon(root)
mckenziemc@0: 	assert(root)
mckenziemc@0: 	
mckenziemc@0: 	root:Enable()
mckenziemc@0: 	
mckenziemc@0: 	--	check dependencies
mckenziemc@0: 	local dependencies = {root:GetDependencies()}
mckenziemc@0: 	for i, depName in pairs(dependencies) do
mckenziemc@0: 		self:PrepareReloadTree(depName)
mckenziemc@0: 	end
mckenziemc@0: 
mckenziemc@0: 	--	prepare embeds, if they are available separately
mckenziemc@0: 	local embeds = {root:GetEmbeds(addon)}
mckenziemc@0: 	for i, embedName in pairs(embeds) do
mckenziemc@0: 		local embed = self:GetAddon(embedName)
mckenziemc@0: 		
mckenziemc@0: 		if embed then
mckenziemc@0: 			self:PrepareReloadTree(embedName)
mckenziemc@0: 		end
mckenziemc@0: 	end
mckenziemc@0: end
mckenziemc@0: 
mckenziemc@0: 
mckenziemc@0: function Core:ForceLoadAvailable()
mckenziemc@0: 	return true
mckenziemc@0: 	--	FIXME: use field and a frame registered for PLAYER_LOGIN
mckenziemc@0: end