--[=[
	Client side ragdolling meant to be used with a binder. See [RagdollBindersClient].
	While a humanoid is bound with this class, it is ragdolled.

	@client
	@class RagdollClient
]=]

local require = require(script.Parent.loader).load(script)

local Workspace = game:GetService("Workspace")
local Players = game:GetService("Players")
local UserInputService = game:GetService("UserInputService")
local RunService = game:GetService("RunService")

local BaseObject = require("BaseObject")
-- local CameraStackService = require("CameraStackService")
local CharacterUtils = require("CharacterUtils")
local HapticFeedbackUtils = require("HapticFeedbackUtils")
local RagdollServiceClient = require("RagdollServiceClient")
local RagdollMotorUtils = require("RagdollMotorUtils")

local RagdollClient = setmetatable({}, BaseObject)
RagdollClient.ClassName = "RagdollClient"
RagdollClient.__index = RagdollClient

--[=[
	Constructs a new RagdollClient. Should be done via [Binder]. See [RagdollBindersClient].
	@param humanoid Humanoid
	@param serviceBag ServiceBag
	@return RagdollClient
]=]
function RagdollClient.new(humanoid, serviceBag)
	local self = setmetatable(BaseObject.new(humanoid), RagdollClient)

	local player = CharacterUtils.getPlayerFromCharacter(self._obj)
	if player == Players.LocalPlayer then
		self._maid:GiveTask(task.spawn(function()
			-- Yield in the same way just to ensure no weird shakes.
			RagdollMotorUtils.yieldUntilStepped()

			self:_setupHapticFeedback()
-- 			self:_setupCameraShake(CameraStackService:GetImpulseCamera())
		end))
	end

	return self
end

-- TODO: Move out of this open source module
-- function RagdollClient:_setupCameraShake(impulseCamera)
-- 	local head = self._obj.Parent:FindFirstChild("Head")
-- 	if not head then
-- 		return
-- 	end

-- 	local lastVelocity = head.Velocity
-- 	self._maid:GiveTask(RunService.Heartbeat:Connect(function()
-- 		debug.profilebegin("ragdollcamerashake")
-- 		local cameraCFrame = Workspace.CurrentCamera.CFrame

-- 		local velocity = head.Velocity
-- 		local dVelocity = velocity - lastVelocity
-- 		if dVelocity.magnitude >= 0 then
-- 			if RagdollServiceClient:GetScreenShakeEnabled() then
-- 				impulseCamera:Impulse(cameraCFrame:VectorToObjectSpace(-0.1*cameraCFrame.LookVector:Cross(dVelocity)))
-- 			end
-- 		end

-- 		lastVelocity = velocity
-- 		debug.profileend()
-- 	end))
-- end

function RagdollClient:_setupHapticFeedback()
	local lastInputType = UserInputService:GetLastInputType()
	if not HapticFeedbackUtils.setSmallVibration(lastInputType, 1) then
		return
	end

	local alive = true
	self._maid:GiveTask(function()
		alive = false
	end)

	task.spawn(function()
		for i=1, 0, -0.1 do
			HapticFeedbackUtils.setSmallVibration(lastInputType, i)
			task.wait(0.05)
		end
		HapticFeedbackUtils.setSmallVibration(lastInputType, 0)

		if alive then
			self._maid:GiveTask(function()
				HapticFeedbackUtils.smallVibrate(lastInputType)
			end)
		end
	end)
end

return RagdollClient