/datum/disease2/disease/Topic(href, href_list)
	. = ..()
	if(.) return

	if(href_list["info"])
		// spawn or admin privileges to see info about viruses
		if(!check_rights(R_ADMIN|R_SPAWN)) return

		usr << "Infection chance: [infectionchance]; Speed: [speed]; Spread type: [spreadtype]"
		usr << "Affected species: [english_list(affected_species)]"
		usr << "Effects:"
		for(var/datum/disease2/effectholder/E in effects)
			usr << "[E.stage]: [E.effect.name]; chance=[E.chance]; multiplier=[E.multiplier]"
		usr << "Antigens: [antigens2string(antigen)]"

		return 1

/datum/disease2/disease/get_view_variables_header()
	. = list()
	for(var/datum/disease2/effectholder/E in effects)
		. += "[E.stage]: [E.effect.name]"
	return {"
		<b>[name()]</b><br><font size=1>
		[jointext(., "<br>")]</font>
	"}

/datum/disease2/disease/get_view_variables_options()
	return ..() + {"
		<option value='?src=\ref[src];info=1'>Show info</option>
	"}

/datum/admins/var/datum/virus2_editor/virus2_editor_datum = new
/client/proc/virus2_editor()
	set name = "Virus Editor"
	set category = "Admin"
	if(!holder || !check_rights(R_SPAWN)) return // spawn privileges to create viruses

	holder.virus2_editor_datum.show_ui(src)

/datum/virus2_editor
	var/list/s = list(/datum/disease2/effect/invisible,/datum/disease2/effect/invisible,/datum/disease2/effect/invisible,/datum/disease2/effect/invisible)
	var/list/s_chance = list(1,1,1,1)
	var/list/s_multiplier = list(1,1,1,1)
	var/species = list()
	var/infectionchance = 70
	var/spreadtype = "Contact"
	var/list/antigens = list()
	var/speed = 1
	var/mob/living/carbon/infectee = null

	// this holds spawned viruses so that the "Info" links work after the proc exits
	var/list/spawned_viruses = list()

	proc/select(mob/user, stage)
		if(stage < 1 || stage > 4) return

		var/list/L = list()

		for(var/e in (typesof(/datum/disease2/effect) - /datum/disease2/effect))
			var/datum/disease2/effect/f = e
			if(initial(f.stage) <= stage)
				L[initial(f.name)] = e

		var/datum/disease2/effect/Eff = s[stage]

		var/C = input("Select effect for stage [stage]:", "Stage [stage]", initial(Eff.name)) as null|anything in L
		if(!C) return
		return L[C]

	proc/show_ui(mob/user)
		var/H = {"
		<center><h3>Virus2 Virus Editor</h3></center><br />
		<b>Effects:</b><br />
		"}
		for(var/i = 1 to 4)
			var/datum/disease2/effect/Eff = s[i]
			H += {"
					<a href='?src=\ref[src];what=effect;stage=[i];effect=1'>[initial(Eff.name)]</a>
					Chance: <a href='?src=\ref[src];what=effect;stage=[i];chance=1'>[s_chance[i]]</a>
					Multiplier: <a href='?src=\ref[src];what=effect;stage=[i];multiplier=1'>[s_multiplier[i]]</a>
					<br />
				"}
		H += {"
		<br />
		<b>Infectable Species:</b><br />
		"}
		var/f = 1
		for(var/k in all_species)
			var/datum/species/S = all_species[k]
			if(S.get_virus_immune())
				continue
			if(!f) H += " | "
			else f = 0
			H += "<a href='?src=\ref[src];what=species;toggle=[k]' style='color:[(k in species) ? "#006600" : "#ff0000"]'>[k]</a>"
		H += {"
		<a href="?src=\ref[src];what=species;reset=1" style="color:#0000aa">Reset</a>
		<br />
		<b>Infection Chance:</b> <a href="?src=\ref[src];what=ichance">[infectionchance]</a><br />
		<b>Spread Type:</b> <a href="?src=\ref[src];what=stype">[spreadtype]</a><br />
		<b>Speed:</b> <a href="?src=\ref[src];what=speed">[speed]</a><br />
		<br />
		"}
		f = 1
		for(var/k in ALL_ANTIGENS)
			if(!f) H += " | "
			else f = 0
			H += "<a href='?src=\ref[src];what=antigen;toggle=[k]' style='color:[(k in antigens) ? "#006600" : "#ff0000"]'>[k]</a>"
		H += {"
		<a href="?src=\ref[src];what=antigen;reset=1" style="color:#0000aa">Reset</a>
		<br />
		<hr />
		<b>Initial infectee:</b> <a href="?src=\ref[src];what=infectee">[infectee ? infectee : "(choose)"]</a>
		<a href="?src=\ref[src];what=go" style="color:#ff0000">RELEASE</a>
		"}

		user << browse(H, "window=virus2edit")

	Topic(href, href_list)
		switch(href_list["what"])
			if("effect")
				var/stage = text2num(href_list["stage"])
				if(href_list["effect"])
					var/datum/disease2/effect/E = select(usr,stage)
					if(!E) return
					s[stage] = E
					// set a default chance and multiplier of half the maximum (roughly average)
					s_chance[stage] = max(1, round(initial(E.chance_maxm)/2))
					s_multiplier[stage] = max(1, round(initial(E.maxm)/2))
				else if(href_list["chance"])
					var/datum/disease2/effect/Eff = s[stage]
					var/I = input("Chance, per tick, of this effect happening (min 0, max [initial(Eff.chance_maxm)])", "Effect Chance", s_chance[stage]) as null|num
					if(I == null || I < 0 || I > initial(Eff.chance_maxm)) return
					s_chance[stage] = I
				else if(href_list["multiplier"])
					var/datum/disease2/effect/Eff = s[stage]
					var/I = input("Multiplier for this effect (min 1, max [initial(Eff.maxm)])", "Effect Multiplier", s_multiplier[stage]) as null|num
					if(I == null || I < 1 || I > initial(Eff.maxm)) return
					s_multiplier[stage] = I
			if("species")
				if(href_list["toggle"])
					var/T = href_list["toggle"]
					if(T in species)
						species -= T
					else
						species |= T
				else if(href_list["reset"])
					species = list()
				if(infectee)
					if(!infectee.species || !(infectee.species.get_bodytype() in species))
						infectee = null
			if("ichance")
				var/I = input("Input infection chance", "Infection Chance", infectionchance) as null|num
				if(!I) return
				infectionchance = I
			if("stype")
				var/S = alert("Which spread type?", "Spread Type", "Cancel", "Contact", "Airborne")
				if(!S || S == "Cancel") return
				spreadtype = S
			if("speed")
				var/S = input("Input speed", "Speed", speed) as null|num
				if(!S) return
				speed = S
			if("antigen")
				if(href_list["toggle"])
					var/T = href_list["toggle"]
					if(length(T) != 1) return
					if(T in antigens)
						antigens -= T
					else
						antigens |= T
				else if(href_list["reset"])
					antigens = list()
			if("infectee")
				var/list/candidates = list()
				for(var/mob/living/carbon/G in living_mob_list)
					if(G.stat != DEAD && G.species)
						if(G.species.get_bodytype() in species)
							candidates["[G.name][G.client ? "" : " (no client)"]"] = G
						else
							candidates["[G.name] ([G.species.get_bodytype()])[G.client ? "" : " (no client)"]"] = G
				if(!candidates.len) usr << "No possible candidates found!"

				var/I = input("Choose initial infectee", "Infectee", infectee) as null|anything in candidates
				if(!I || !candidates[I]) return
				infectee = candidates[I]
				species |= infectee.species.get_bodytype()
			if("go")
				if(!antigens.len)
					var/a = alert("This disease has no antigens; it will be impossible to permanently immunise anyone without them.\
									It is strongly recommended to set at least one antigen. Do you want to go back and edit your virus?", "Antigens", "Yes", "Yes", "No")
					if(a == "Yes") return
				var/datum/disease2/disease/D = new
				D.infectionchance = infectionchance
				D.spreadtype = spreadtype
				D.antigen = antigens
				D.affected_species = species
				D.speed = speed
				for(var/i in 1 to 4)
					var/datum/disease2/effectholder/E = new
					var/Etype = s[i]
					E.effect = new Etype()
					E.effect.generate()
					E.chance = s_chance[i]
					E.multiplier = s_multiplier[i]
					E.stage = i

					D.effects += E

				spawned_viruses += D

				message_admins("<span class='danger'>[key_name_admin(usr)] infected [key_name_admin(infectee)] with a virus (<a href='?src=\ref[D];info=1'>Info</a>)</span>")
				log_admin("[key_name_admin(usr)] infected [key_name_admin(infectee)] with a virus!")
				infect_virus2(infectee, D, forced=1)

		show_ui(usr)