local StarTowerSettingGate = {}
local objLevelData
local nSerial = 0
local objReadyOwner
local mapTransition = {}
local mapOwnerVersion = {}
local mapRequests = {}
function StarTowerSettingGate.Start(objData)
	EventManager.Remove("StarTowerSettingRequestFailed", StarTowerSettingGate, StarTowerSettingGate.OnRequestFailed)
	objLevelData = objData
	nSerial = nSerial + 1
	objReadyOwner = nil
	mapTransition = {}
	mapOwnerVersion = {}
	mapRequests = {}
	if objData ~= nil then
		EventManager.Add("StarTowerSettingRequestFailed", StarTowerSettingGate, StarTowerSettingGate.OnRequestFailed)
	end
end
function StarTowerSettingGate.Stop(objData)
	if objLevelData == objData then
		StarTowerSettingGate.Start(nil)
	end
end
function StarTowerSettingGate.Begin()
	nSerial = nSerial + 1
	objReadyOwner = nil
	return nSerial
end
function StarTowerSettingGate.Ready(objOwner, nExpectedSerial)
	if objLevelData ~= nil and nExpectedSerial == nSerial then
		objReadyOwner = objOwner
	end
end
function StarTowerSettingGate.ReadyAfter(objOwner, nExpectedSerial, nDuration)
	if objLevelData == nil then
		return
	end
	local nOwnerVersion = mapOwnerVersion[objOwner] or 0
	objOwner:AddTimer(1, nDuration, function()
		if (mapOwnerVersion[objOwner] or 0) == nOwnerVersion then
			StarTowerSettingGate.Ready(objOwner, nExpectedSerial)
		end
	end, true, true, true)
end
function StarTowerSettingGate.Transition(objOwner, nDuration)
	if objLevelData == nil then
		return
	end
	local mapToken = {}
	mapTransition[mapToken] = objOwner
	objOwner:AddTimer(1, nDuration, function()
		mapTransition[mapToken] = nil
	end, true, true, true)
end
function StarTowerSettingGate.Clear(objOwner)
	mapOwnerVersion[objOwner] = (mapOwnerVersion[objOwner] or 0) + 1
	if objReadyOwner == objOwner then
		StarTowerSettingGate.Begin()
	end
	for mapToken, objTransitionOwner in pairs(mapTransition) do
		if objTransitionOwner == objOwner then
			mapTransition[mapToken] = nil
		end
	end
end
function StarTowerSettingGate.ResumeAfterSetting()
	local objOwner = objReadyOwner
	if objLevelData == nil or objOwner == nil then
		return
	end
	local nExpectedSerial = StarTowerSettingGate.Begin()
	local nOwnerVersion = mapOwnerVersion[objOwner] or 0
	cs_coroutine.start(function()
		coroutine.yield(CS.UnityEngine.WaitForEndOfFrame())
		coroutine.yield(CS.UnityEngine.WaitForEndOfFrame())
		if (mapOwnerVersion[objOwner] or 0) == nOwnerVersion then
			StarTowerSettingGate.Ready(objOwner, nExpectedSerial)
		end
	end)
end
function StarTowerSettingGate.BeginRequest(failedCallback)
	StarTowerSettingGate.Begin()
	local mapToken = {failedCallback = failedCallback}
	if objLevelData ~= nil then
		mapRequests[mapToken] = nSerial
	end
	return mapToken
end
function StarTowerSettingGate.FinishRequest(mapToken)
	mapRequests[mapToken] = nil
end
function StarTowerSettingGate.OnRequestFailed(_, mapError)
	local mapOldestToken
	local nOldestSerial = math.huge
	for mapToken, nRequestSerial in pairs(mapRequests) do
		if nRequestSerial < nOldestSerial then
			mapOldestToken = mapToken
			nOldestSerial = nRequestSerial
		end
	end
	if mapOldestToken ~= nil then
		mapRequests[mapOldestToken] = nil
		StarTowerSettingGate.Begin()
		if mapOldestToken.failedCallback ~= nil then
			mapOldestToken.failedCallback(mapError)
		end
	end
end
function StarTowerSettingGate.CanOpen(objData)
	return objData ~= nil and objLevelData == objData and objReadyOwner ~= nil and next(mapTransition) == nil and next(mapRequests) == nil and objData.bEnd ~= true and not objData:IsAutoDecisionEnabled() and not objData:IsAutoDecisionBusy()
end
return StarTowerSettingGate