/obj/item/device/assembly_holder
	name = "Assembly"
	icon = 'icons/obj/assemblies/new_assemblies.dmi'
	icon_state = "holder"
	item_state = "assembly"
	flags = CONDUCT
	throwforce = 5
	w_class = 2
	throw_speed = 3
	throw_range = 10

	var/secured = 0
	var/obj/item/device/assembly/a_left = null
	var/obj/item/device/assembly/a_right = null

	proc/attach(var/obj/item/device/D, var/obj/item/device/D2, var/mob/user)
		return

	proc/process_activation(var/obj/item/device/D)
		return



	IsAssemblyHolder()
		return 1

	Destroy()
		if(a_left)
			a_left.holder = null
		if(a_right)
			a_right.holder = null
		return ..()

	attach(var/obj/item/device/D, var/obj/item/device/D2, var/mob/user)
		if((!D)||(!D2))	return 0
		if((!isassembly(D))||(!isassembly(D2)))	return 0
		if((D:secured)||(D2:secured))	return 0
		if(!D.remove_item_from_storage(src))
			if(user)
				user.remove_from_mob(D)
			D.loc = src
		if(!D2.remove_item_from_storage(src))
			if(user)
				user.remove_from_mob(D2)
			D2.loc = src
		D:holder = src
		D2:holder = src
		a_left = D
		a_right = D2
		name = "[D.name]-[D2.name] assembly"
		update_icon()
		return 1


	update_icon()
		overlays.Cut()
		if(a_left)
			overlays += "[a_left.icon_state]_left"
			for(var/O in a_left.attached_overlays)
				overlays += "[O]_l"
		if(a_right)
			src.overlays += "[a_right.icon_state]_right"
			for(var/O in a_right.attached_overlays)
				overlays += "[O]_r"
		if(master)
			master.update_icon()


	examine(mob/user)
		..(user)
		if((in_range(src, user) || src.loc == user))
			if(src.secured)
				to_chat(user, "\The [src] is ready!")
			else
				to_chat(user, "\The [src] can be attached!")


	HasProximity(atom/movable/AM as mob|obj)
		if(a_left)
			a_left.HasProximity(AM)
		if(a_right)
			a_right.HasProximity(AM)


	Crossed(atom/movable/AM as mob|obj)
		if(a_left)
			a_left.Crossed(AM)
		if(a_right)
			a_right.Crossed(AM)

	on_found(mob/finder as mob)
		if(a_left)
			a_left.on_found(finder)
		if(a_right)
			a_right.on_found(finder)


	hear_talk(mob/living/M as mob, msg)
		if(a_left)
			a_left.hear_talk(M, msg)
		if(a_right)
			a_right.hear_talk(M, msg)
	
	hear_message(mob/living/M as mob, msg)
		if(a_left)
			a_left.hear_message(M, msg)
		if(a_right)
			a_right.hear_message(M, msg)

	proc/process_movement() // infrared beams and prox sensors
		if(a_left && a_right)
			a_left.holder_movement()
			a_right.holder_movement()

	Move()
		..()
		process_movement()
		return

	pickup()
		..()
		process_movement()

	Bump()
		..()
		process_movement()

	throw_impact() // called when a throw stops
		..()
		process_movement()

	attack_hand()//Perhapse this should be a holder_pickup proc instead, can add if needbe I guess
		if(a_left && a_right)
			a_left.holder_movement()
			a_right.holder_movement()
		..()
		return


	attackby(obj/item/weapon/W as obj, mob/user as mob, params)
		if(istype(W, /obj/item/weapon/screwdriver))
			if(!a_left || !a_right)
				to_chat(user, "\red BUG:Assembly part missing, please report this!")
				return
			a_left.toggle_secure()
			a_right.toggle_secure()
			secured = !secured
			if(secured)
				to_chat(user, "\blue \The [src] is ready!")
			else
				to_chat(user, "\blue \The [src] can now be taken apart!")
			update_icon()
			return
		else
			..()
		return


	attack_self(mob/user as mob)
		src.add_fingerprint(user)
		if(src.secured)
			if(!a_left || !a_right)
				to_chat(user, "\red Assembly part missing!")
				return
			if(istype(a_left,a_right.type))//If they are the same type it causes issues due to window code
				switch(alert("Which side would you like to use?",,"Left","Right"))
					if("Left")	a_left.attack_self(user)
					if("Right")	a_right.attack_self(user)
				return
			else
				a_left.attack_self(user)
				a_right.attack_self(user)
		else
			var/turf/T = get_turf(src)
			if(!T)	return 0
			if(a_left)
				a_left:holder = null
				a_left.loc = T
			if(a_right)
				a_right:holder = null
				a_right.loc = T
			spawn(0)
				qdel(src)
		return


	process_activation(var/obj/D, var/normal = 1, var/special = 1)
		if(!D)	return 0
		if((normal) && (a_right) && (a_left))
			if(a_right != D)
				a_right.pulsed(0)
			if(a_left != D)
				a_left.pulsed(0)
		if(master)
			master.receive_signal()
		return 1


	ex_act(severity)
		switch(severity)
			if(1.0)
				qdel(src)
				return
			if(2.0)
				if(prob(50))
					qdel(src)
					return
			if(3.0)
				if(prob(25))
					qdel(src)
					return
		return