/datum/autopsy_data_scanner
	var/weapon = null // this is the DEFINITE weapon type that was used
	var/list/organs_scanned = list() // this maps a number of scanned organs to
									 // the wounds to those organs with this data's weapon type
	var/organ_names = ""

/datum/autopsy_data
	var/weapon = null
	var/pretend_weapon = null
	var/damage = 0
	var/hits = 0
	var/time_inflicted = 0

	proc/copy()
		var/datum/autopsy_data/W = new()
		W.weapon = weapon
		W.pretend_weapon = pretend_weapon
		W.damage = damage
		W.hits = hits
		W.time_inflicted = time_inflicted
		return W

/obj/item/weapon/autopsy_scanner/proc/add_data(var/datum/organ/external/O)
	if(!O.autopsy_data.len && !O.trace_chemicals.len) return

	for(var/V in O.autopsy_data)
		var/datum/autopsy_data/W = O.autopsy_data[V]

		if(!W.pretend_weapon)
			/*
			// the more hits, the more likely it is that we get the right weapon type
			if(prob(50 + W.hits * 10 + W.damage))
			*/

			// Buffing this stuff up for now!
			if(1)
				W.pretend_weapon = W.weapon
			else
				W.pretend_weapon = pick("mechanical toolbox", "wirecutters", "revolver", "crowbar", "fire extinguisher", "tomato soup", "oxygen tank", "emergency oxygen tank", "laser", "bullet")


		var/datum/autopsy_data_scanner/D = wdata[V]
		if(!D)
			D = new()
			D.weapon = W.weapon
			wdata[V] = D

		if(!D.organs_scanned[O.name])
			if(D.organ_names == "")
				D.organ_names = O.display_name
			else
				D.organ_names += ", [O.display_name]"

		del D.organs_scanned[O.name]
		D.organs_scanned[O.name] = W.copy()

	for(var/V in O.trace_chemicals)
		if(O.trace_chemicals[V] > 0 && !chemtraces.Find(V))
			chemtraces += V

/obj/item/weapon/autopsy_scanner/verb/print_data()
	set src in view(usr, 1)
	set name = "Print Data"
	if(usr.stat)
		usr << "No."
		return

	if(wdata.len == 0 && chemtraces.len == 0)
		usr << "<b>* There is no data about any wounds in the scanner's database. You may have to scan more bodyparts, or otherwise this wound type may not be in the scanner's database."
		return

	var/scan_data = ""

	if(timeofdeath)
		scan_data += "<b>Time of death:</b> [worldtime2text(timeofdeath)]<br><br>"

	var/n = 1
	for(var/wdata_idx in wdata)
		var/datum/autopsy_data_scanner/D = wdata[wdata_idx]
		var/total_hits = 0
		var/total_score = 0
		var/list/weapon_chances = list() // maps weapon names to a score
		var/age = 0

		for(var/wound_idx in D.organs_scanned)
			var/datum/autopsy_data/W = D.organs_scanned[wound_idx]
			total_hits += W.hits

			var/wname = W.pretend_weapon

			if(wname in weapon_chances) weapon_chances[wname] += W.damage
			else weapon_chances[wname] = max(W.damage, 1)
			total_score+=W.damage


			var/wound_age = W.time_inflicted
			age = max(age, wound_age)

		var/damage_desc

		var/damaging_weapon = (total_score != 0)

		// total score happens to be the total damage
		switch(total_score)
			if(0)
				damage_desc = "Unknown"
			if(1 to 5)
				damage_desc = "<font color='green'>negligible</font>"
			if(5 to 15)
				damage_desc = "<font color='green'>light</font>"
			if(15 to 30)
				damage_desc = "<font color='orange'>moderate</font>"
			if(30 to 1000)
				damage_desc = "<font color='red'>severe</font>"

		if(!total_score) total_score = D.organs_scanned.len

		scan_data += "<b>Weapon #[n]</b><br>"
		if(damaging_weapon)
			scan_data += "Severity: [damage_desc]<br>"
			scan_data += "Hits by weapon: [total_hits]<br>"
		scan_data += "Approximate time of wound infliction: [worldtime2text(age)]<br>"
		scan_data += "Affected limbs: [D.organ_names]<br>"
		scan_data += "Possible weapons:<br>"
		for(var/weapon_name in weapon_chances)
			scan_data += "\t[100*weapon_chances[weapon_name]/total_score]% [weapon_name]<br>"

		scan_data += "<br>"

		n++

	if(chemtraces.len)
		scan_data += "<b>Trace Chemicals: </b><br>"
		for(var/chemID in chemtraces)
			scan_data += chemID
			scan_data += "<br>"

	for(var/mob/O in viewers(usr))
		O.show_message("\red \the [src] rattles and prints out a sheet of paper.", 1)

	sleep(10)

	var/obj/item/weapon/paper/P = new(usr.loc)
	P.name = "Autopsy Data ([target_name])"
	P.info = "<tt>[scan_data]</tt>"
	P.overlays += "paper_words"

	if(istype(usr,/mob/living/carbon))
		// place the item in the usr's hand if possible
		if(!usr.r_hand)
			P.loc = usr
			usr.r_hand = P
			P.layer = 20
		else if(!usr.l_hand)
			P.loc = usr
			usr.l_hand = P
			P.layer = 20

	if(istype(usr,/mob/living/carbon/human))
		usr:update_inv_l_hand()
		usr:update_inv_r_hand()

/obj/item/weapon/autopsy_scanner/attack(mob/living/carbon/human/M as mob, mob/living/carbon/user as mob)
	if(!istype(M))
		return

	if(!can_operate(M))
		return

	if(target_name != M.name)
		target_name = M.name
		src.wdata = list()
		user << "\red A new patient has been registered.. Purging data for previous patient."

	src.timeofdeath = M.timeofdeath

	var/datum/organ/external/S = M.get_organ(user.zone_sel.selecting)
	if(!S)
		usr << "<b>You can't scan this body part.</b>"
		return
	if(!S.open)
		usr << "<b>You have to cut the limb open first!</b>"
		return
	for(var/mob/O in viewers(M))
		O.show_message("\red [user.name] scans the wounds on [M.name]'s [S.display_name] with \the [src.name]", 1)

	src.add_data(S)

	return 1