AddCSLuaFile("hands.lua")

SWEP.ViewModel				= ""--"models/error.mdl"
SWEP.WorldModel				= ""--"models/error.mdl"

SWEP.HoldType 				= "normal"

SWEP.Primary.ClipSize       = -1
SWEP.Primary.DefaultClip    = -1
SWEP.Primary.Automatic      = false
SWEP.Primary.Ammo           = "none"

SWEP.Secondary.Clipsize    	= -1
SWEP.Secondary.DefaultClip  = -1
SWEP.Secondary.Automatic   	= false
SWEP.Secondary.Ammo         = "none"

SWEP.DrawAmmo				= false
SWEP.DrawCrosshair			= false

function SWEP:Initialize()
	self:SetWeaponHoldType(self.HoldType)
	self:DrawShadow(false)
	self:SetNoDraw(true)

	--[[
	if (CLIENT) then
		self.MOB = ClientsideModel("error.mdl")
		self.MOB:SetNoDraw(true)
		self.MOB:DrawShadow(false)
	end
	]]
end

SWEP.Pickup = nil
SWEP.PickupAngles = Angle(0,0,0)
SWEP.PickupOffset = 100

local buildzones = {
	["artery_shipyard"] = true,
}
function SWEP:DefaultPickup()
	print("Default pickup fired, self.pickup is", self.Pickup)
	local zc = self.Owner:GetCurrentZone()
	local building = zc != nil and buildzones[zc] != nil
	if self.Pickup == nil then
		local tr = self.Owner:GetEyeTrace()
		local dist = self.Owner:GetPos():Distance(tr.HitPos)
		local mass = -1
		pcall(function()
			mass = tr.Entity:GetPhysicsObject():GetMass()
		end,function()
			print("Failed to get mass")
		end)

		if building or (dist < 100 and mass != -1 and mass < 400) then
			self.OldMass = mass
			self.Pickup = tr.Entity
			self.PickupAngles = tr.Entity:GetAngles() - self.Owner:EyeAngles()
			self.PickupOffset = dist
			tr.Entity:GetPhysicsObject():SetMass(3)
			tr.Entity:GetPhysicsObject():EnableCollisions(false)
		else
			print("dist is:" ,dist)
			if tr.Entity.GetMass then
				print("Mass is", tr.Entity:GetMass())
			else
				print("Ent does not have mass!", mass)
			end
			print("Could not pick that up")
		end
	else
		if IsValid(self.Pickup) and zc != nil and buildzones[zc.class] then
			--self.Pickup:GetPhysicsObject():EnableMotion(false)
		end
		self.Pickup:GetPhysicsObject():SetMass(self.OldMass)
		self.Pickup:GetPhysicsObject():EnableCollisions(true)
		self.Pickup = nil
	end
end

function SWEP:Tick()
	if self.Pickup ~= nil and IsValid(self.Pickup) then
		local crouchadd
		if self.Owner:Crouching() then
			crouchadd = Vector(0,0,32)
		else
			crouchadd = Vector(0,0,64)
		end
		local targetpos = (self.Owner:EyeAngles():Forward() * self.PickupOffset * 2) + self.Owner:GetPos() + crouchadd
		local targetang = self.Owner:EyeAngles() + self.PickupAngles
		--Check if we're inside a build zone
		local zc = self.Owner:GetCurrentZone()
		if zc != nil and zc.class == "artery_shipyard" then
			self.Pickup:SetPos(targetpos)
			self.Pickup:SetAngles(targetang)
		else

			--Set position
			local pow = 100
			local deltavel = targetpos - (self.Pickup:GetPos() + (self.Pickup:GetVelocity() / pow))
			local vlim = 100000
			local clampvel = Vector(math.Clamp(deltavel.x,-vlim,vlim),math.Clamp(deltavel.y,-vlim,vlim),math.Clamp(deltavel.z,-vlim,vlim))
			local speed = 20
			self.Pickup:GetPhysicsObject():SetVelocity(clampvel * speed)

			--Set angles
			local angvel = self.Pickup:GetAngles() - targetang
			local deltaang = self.Pickup:GetPhysicsObject():GetAngleVelocity() - angvel:Forward()
			self.Pickup:SetAngles(targetang)
			--self.Pickup:GetPhysicsObject():AddAngleVelocity(angvel:Forward())
		end
	end
end

function SWEP:ShouldDropOnDie()
	return false
end

function SWEP:PrimaryAttack()
	if CLIENT then return end

	--Make sure we have an equipment inventory
	if not self.Owner then return end
	if not self.Owner.data then return end
	if not self.Owner.data.inventories then return end
	if not self.Owner.data.inventories[1] then return end
	local eqpd = self.Owner.data.inventories[1]

	--Get the weapon we want to fire, and fire it!
	local weapon = eqpd:Get({"Left Hand"}) or eqpd:Get({"Dual"})
	if not weapon then
		self:DefaultPickup()
	elseif weapon.onClick ~= nil then
		weapon:onClick(self.Owner)
	end --Make sure we have a weapon
end

function SWEP:SecondaryAttack()
	if CLIENT then return end

	--Make sure we have an equipment inventory
	if not self.Owner then return end
	if not self.Owner.data then return end
	if not self.Owner.data.inventories then return end
	if not self.Owner.data.inventories[1] then return end
	local eqpd = self.Owner.data.inventories[1]

	--Get the weapon we want to fire, and fire it!
	local weapon = eqpd:Get({"Right Hand"}) or eqpd:Get({"Dual"})
	if not weapon then
		self:DefaultPickup()
	elseif weapon.onClick ~= nil then
		weapon:onClick(self.Owner)
	end --Make sure we have a weapon
end

hook.Add("PlayerSpawn","give_hands",function(ply)
	ply:Give("hands")
end)