autoImport("Stopwatch")
StopwatchManager = class("StopwatchManager")

StopwatchManager.MaxStopwatchCount = 100

function StopwatchManager.Me()
	if(StopwatchManager.me == nil) then
		StopwatchManager.me = StopwatchManager.new()
	end
	return StopwatchManager.me
end

function StopwatchManager:ctor()
	self.stopwatchMap = {}
end

function StopwatchManager:CreateStopwatch(pauseFunc, owner)
	local ownerStopwatches = self.stopwatchMap[owner]
	if ownerStopwatches == nil then
		ownerStopwatches = {}
		self.stopwatchMap[owner] = ownerStopwatches
	end
	
	local id = 0
	for i=1,self.MaxStopwatchCount do
		if ownerStopwatches[i] == nil then
			id = i
			break
		end
	end
	if id == 0 then
		LogUtility.Warning("Stopwatch已滿")
		return nil
	end
	
	local stopwatch = ownerStopwatches[id]
	if stopwatch == nil then
		stopwatch = Stopwatch.new(pauseFunc, owner, id)
		ownerStopwatches[id] = stopwatch
	else
		stopwatch:ResetData(pauseFunc, owner, id)
	end
	return stopwatch
end

function StopwatchManager:HasStopwatch(owner, id)
	local ownerStopwatches = self.stopwatchMap[owner]
	if ownerStopwatches == nil then
		return false
	end
	local stopwatch = ownerStopwatches[id]
	if stopwatch == nil then
		return false
	end
	return true
end

function StopwatchManager:ClearStopwatch(owner, id)
	local ownerStopwatches = self.stopwatchMap[owner]
	if ownerStopwatches ~= nil then
		if id ~= nil then
			local stopwatch = ownerStopwatches[id]
			if stopwatch ~= nil then
				stopwatch = nil
				ownerStopwatches[id] = nil
				local stillHasOne = false
				for id, stopwatch in pairs(ownerStopwatches) do
					stillHasOne = true
					break
				end
				if not stillHasOne then
					self.stopwatchMap[owner] = nil
				end
			end
		else
			for id, stopwatch in pairs(ownerStopwatches) do
				stopwatch = nil
			end
			self.stopwatchMap[owner] = nil
		end
	end
end

function StopwatchManager:ClearAll()
	for owner, stopwatches in pairs(self.stopwatchMap) do
		for id, stopwatch in pairs(stopwatches) do
			stopwatch = nil
		end
	end
	self.stopwatchMap = {}
end