#define NO_SCANNER 0
#define HAS_SCANNER 1
#define OPEN 1
#define CLOSED 0
#define MEDICAL_MODE 1
#define SCIENCE_MODE 2

//tricorder scanner.Doesn't actually do anything, it's just required to be able to scan.
/obj/item/weapon/tricordscanner
	name = "tricorder scanner"
	desc = "A tricorder scanner. Hold a tricorder in one hand to recieve the results."
	icon = 'icons/star_trek.dmi'
	icon_state = "tricorder_scn"
	w_class = 1


/obj/item/device/tricorder
	name = "tricorder"
	desc = "Utilized in the fields of repairwork, analyzing, and containing a variety of useful information."
	icon = 'icons/star_trek.dmi'
	icon_state = "tricorder"
	slot_flags = SLOT_BELT
	materials = list(MAT_METAL=55, MAT_GLASS=45)
	w_class = 2

	var/open = 0
	var/setting = MEDICAL_MODE
	var/scannerstatus = HAS_SCANNER
	var/obj/item/weapon/tricordscanner/tscanner

/obj/item/device/tricorder/New()
	..()

	tscanner = /obj/item/weapon/tricordscanner
	if(open != OPEN && open != CLOSED)
		open = CLOSED
		update_icon()
	else
		update_icon()


/obj/item/device/tricorder/update_icon()

	if(open == CLOSED)
		overlays += "[icon_state]_closed"
		overlays -= "[icon_state]_open"
	else if(open == OPEN)
		overlays += "[icon_state]_open"
		overlays -= "[icon_state]_closed"
	else
		return


/obj/item/device/tricorder/AltClick()
	toggle_open()

/obj/item/device/tricorder/proc/toggle_open(mob/user) // Open/close it for muh ARPEEEEEEE
	var/mob/living/carbon/human/M
	if(user != M)
		return
	else
		add_fingerprint(src)
		if(open == CLOSED)
			open = OPEN
			update_icon()
		else
			open = CLOSED
			update_icon()


/obj/item/device/tricorder/attack_self(mob/user)
	if(open == CLOSED)
		toggle_open()
	else
		if(setting == MEDICAL_MODE)
			setting = SCIENCE_MODE
			to_chat(user, "<span class=`notice`> You enable the science analyzer.</span>")
		else if(setting == SCIENCE_MODE)
			setting = MEDICAL_MODE
			to_chat(user, "<span class=`notice`> You enable the medical scanner.</span>")
		else
			return

/obj/item/device/tricorder/attack_hand(mob/user) // remove scanner
	if(loc == user)
		if(open == CLOSED)
			..()
			return
		if(scannerstatus == NO_SCANNER)
			to_chat(user, "<span class='warning'> The scanner compartment is empty!</span>")
			return
		else if(scannerstatus == HAS_SCANNER)
			if (ismob(loc))
				var/mob/M = loc
				M.put_in_hands(tscanner)
				to_chat(usr, "<span class='notice'>You remove the scanner from the [name].</span>")
				scannerstatus = NO_SCANNER
			else
				tscanner.loc = get_turf(src)
			tscanner = null
	..()

/obj/item/device/tricorder/attackby(obj/item/C, mob/user, params)
	if(istype(C, /obj/item/weapon/tricordscanner))
		if(((src in user.contents) && (C in user.contents)) || (istype(loc, /turf) && in_range(src, user) && (C in user.contents)) )
			user.loc = locate
			tscanner.loc = src
			tscanner = /obj/item/weapon/tricordscanner
			to_chat(user, "<span class='notice'>You put the ID into \the [src]'s slot.</span>")
			scannerstatus = HAS_SCANNER
		return
	..()

/obj/item/device/tricorder/attack(mob/living/M, mob/living/carbon/human/user)
	var/obj/item/weapon/tricordscanner/F
	if(open == CLOSED)
		return
	else if(user.get_inactive_hand(F))
		if(setting == MEDICAL_MODE)
			healthscan(user, M)
			chemscan(user, M)
			return
		if(setting == SCIENCE_MODE)
			to_chat(user, "<span class='notice'>Function currently unavailible. We apologise for the inconvenience. </span>")
			return
	else
		to_chat(user, "<span class=`warning`>You need to hold a tricorder scanner in your opposite hand to use this!</span>")
		return




#undef NO_SCANNER
#undef HAS_SCANNER
#undef OPEN
#undef CLOSED
#undef MEDICAL_MODE
#undef SCIENCE_MODE