/obj/item/device/assembly/timer
	name = "timer"
	desc = "Used to time things. Works well with contraptions which has to count down. Tick tock."
	icon_state = "timer"
	origin_tech = list(TECH_MAGNET = 1)
	matter = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 50, "waste" = 10)

	wires = WIRE_PULSE

	secured = 0

	var/timing = 0
	var/time = 10


/obj/item/device/assembly/timer/activate()
	if(!..())
		return FALSE

	set_state(!timing)

	update_icon()
	return 0

/obj/item/device/assembly/timer/toggle_secure()
	secured = !secured
	if(secured)
		START_PROCESSING(SSobj, src)
	else
		timing = 0
		STOP_PROCESSING(SSobj, src)
	update_icon()
	return secured

/obj/item/device/assembly/timer/proc/set_state(var/state)
	if(state && !timing) //Not running, starting though
		START_PROCESSING(SSobj, src)
	else if(timing && !state) //Running, stopping though
		STOP_PROCESSING(SSobj, src)
	timing = state

/obj/item/device/assembly/timer/proc/timer_end()
	if(!secured)
		return 0
	pulse(0)
	if(!holder)
		visible_message("[bicon(src)] *beep* *beep*", "*beep* *beep*")

/obj/item/device/assembly/timer/process()
	if(timing && time-- <= 0)
		set_state(0)
		timer_end()
		time = 10

/obj/item/device/assembly/timer/update_icon()
	overlays.Cut()
	attached_overlays = list()
	if(timing)
		overlays += "timer_timing"
		attached_overlays += "timer_timing"
	if(holder)
		holder.update_icon()
	return


/obj/item/device/assembly/timer/interact(mob/user as mob)//TODO: Have this use the wires
	if(!secured)
		user.show_message("<font color='red'>The [name] is unsecured!</font>")
		return 0
	var/second = time % 60
	var/minute = (time - second) / 60
	var/dat = text("<TT><B>Timing Unit</B>\n[] []:[]\n<A href='?src=\ref[];tp=-30'>-</A> <A href='?src=\ref[];tp=-1'>-</A> <A href='?src=\ref[];tp=1'>+</A> <A href='?src=\ref[];tp=30'>+</A>\n</TT>", (timing ? text("<A href='?src=\ref[];time=0'>Timing</A>", src) : text("<A href='?src=\ref[];time=1'>Not Timing</A>", src)), minute, second, src, src, src, src)
	dat += "<BR><BR><A href='?src=\ref[src];refresh=1'>Refresh</A>"
	dat += "<BR><BR><A href='?src=\ref[src];close=1'>Close</A>"
	user << browse(dat, "window=timer")
	onclose(user, "timer")
	return


/obj/item/device/assembly/timer/Topic(href, href_list, state = deep_inventory_state)
	if(..()) return 1
	if(!usr.canmove || usr.stat || usr.restrained() || !in_range(loc, usr))
		usr << browse(null, "window=timer")
		onclose(usr, "timer")
		return

	if(href_list["time"])
		var/new_timing = text2num(href_list["time"])
		set_state(new_timing)
		update_icon()

	if(href_list["tp"])
		var/tp = text2num(href_list["tp"])
		time += tp
		time = min(max(round(time), 0), 600)

	if(href_list["close"])
		usr << browse(null, "window=timer")
		return

	if(usr)
		attack_self(usr)

	return