// stored_energy += (pulse_strength - RAD_COLLECTOR_EFFICIENCY) * RAD_COLLECTOR_COEFFICIENT
#define RAD_COLLECTOR_EFFICIENCY 80 	// radiation needs to be over this amount to get power
#define RAD_COLLECTOR_COEFFICIENT 100
#define RAD_COLLECTOR_STORED_OUT 0.04	// (this * 100)% of stored power outputted per tick. Doesn't actualy change output total, lower numbers just means collectors output for longer in absence of a source
#define RAD_COLLECTOR_OUTPUT min(stored_energy, (stored_energy * RAD_COLLECTOR_STORED_OUT) + 1000) //Produces at least 1000 watts if it has more than that stored

/obj/machinery/power/rad_collector
	name = "\improper radiation collector array"
	desc = "A device which uses Hawking Radiation and plasma to produce power."
	icon = 'icons/obj/singularity.dmi'
	icon_state = "ca"
	anchored = FALSE
	density = TRUE
	req_access = list(ACCESS_ENGINE_EQUIP)
	max_integrity = 350
	integrity_failure = 80
	rad_insulation = RAD_EXTREME_INSULATION
	var/obj/item/tank/internals/plasma/loaded_tank = null
	var/stored_energy = 0
	var/active = FALSE
	var/locked = FALSE
	var/drainratio = 1
	var/powerproduction_drain = 0.001

/obj/machinery/power/rad_collector/process()
	if(!loaded_tank)
		return
	if(!loaded_tank.air_contents.toxins)
		investigate_log("<font color='red'>out of fuel</font>.", "singulo")
		playsound(src, 'sound/machines/ding.ogg', 50, TRUE)
		eject()
	else
		var/gasdrained = min(powerproduction_drain * drainratio, loaded_tank.air_contents.toxins)
		loaded_tank.air_contents.toxins -= gasdrained

		var/power_produced = RAD_COLLECTOR_OUTPUT
		produce_direct_power(power_produced)
		stored_energy -= power_produced


/obj/machinery/power/rad_collector/attack_hand(mob/user)
	if(anchored)
		if(!locked)
			toggle_power()
			user.visible_message("[user.name] turns the [name] [active ? "on" : "off"].", "You turn the [name] [active ? "on" : "off"].")
			investigate_log("turned [active ? "<font color='green'>on</font>" : "<font color='red'>off</font>"] by [user.key]. [loaded_tank ? "Fuel: [round(loaded_tank.air_contents.toxins / 0.29)]%" : "<font color='red'>It is empty</font>"].", "singulo")
		else
			to_chat(user, "<span class='warning'>The controls are locked!</span>")


/obj/machinery/power/rad_collector/attackby(obj/item/I, mob/user, params)
	if(istype(I, /obj/item/analyzer) && loaded_tank)
		atmosanalyzer_scan(loaded_tank.air_contents, user)
	else if(istype(I, /obj/item/tank/internals/plasma))
		if(!anchored)
			to_chat(user, "<span class='warning'>[src] needs to be secured to the floor first.</span>")
			return TRUE
		if(loaded_tank)
			to_chat(user, "<span class='warning'>There's already a plasma tank loaded.</span>")
			return TRUE
		if(user.drop_item())
			loaded_tank = I
			I.forceMove(src)
			update_icons()
	else if(iscrowbar(I))
		if(loaded_tank && !locked)
			eject()
			return TRUE
	else if(iswrench(I))
		if(loaded_tank)
			to_chat(user, "<span class='notice'>Remove the plasma tank first.</span>")
			return TRUE
		var/turf/T = get_turf(src)
		for(var/obj/machinery/power/rad_collector/can_wrench in T.contents)
			if(can_wrench.anchored && !anchored)
				to_chat(user, "<span class='notice'>You can't wrench down [src] here!</span>")
				return
		playsound(loc, I.usesound, 75, TRUE)
		anchored = !anchored
		user.visible_message("[user.name] [anchored ? "secures" : "unsecures"] the [name].", "You [anchored ? "secure" : "undo"] the external bolts.", "You hear a ratchet")
		if(anchored)
			connect_to_network()
		else
			disconnect_from_network()
	else if(istype(I, /obj/item/card/id) || istype(I, /obj/item/pda))
		if(allowed(user))
			if(active)
				locked = !locked
				to_chat(user, "The controls are now [locked ? "locked." : "unlocked."]")
			else
				locked = FALSE //just in case it somehow gets locked
				to_chat(user, "<span class='warning'>The controls can only be locked when [src] is active</span>")
		else
			to_chat(user, "<span class='warning'>Access denied!</span>")
			return TRUE
	else
		return ..()

/obj/machinery/power/rad_collector/examine(mob/user)
	. = ..()
	if(active)
		// stored_energy is converted directly to watts every SSmachines.wait * 0.1 seconds.
		// Therefore, its units are joules per SSmachines.wait * 0.1 seconds.
		// So joules = stored_energy * SSmachines.wait * 0.1
		var/joules = stored_energy * SSmachines.wait * 0.1
		. += "<span class='notice'>[src]'s display states that it has stored <b>[DisplayJoules(joules)]</b>, and is processing <b>[DisplayPower(RAD_COLLECTOR_OUTPUT)]</b>.</span>"
	else
		. += "<span class='notice'><b>[src]'s display displays the words:</b> \"Power production mode. Please insert <b>Plasma</b>.\"</span>"

/obj/machinery/power/rad_collector/obj_break(damage_flag)
	if(!(stat & BROKEN) && !(flags & NODECONSTRUCT))
		eject()
		stat |= BROKEN

/obj/machinery/power/rad_collector/proc/eject()
	locked = FALSE
	var/obj/item/tank/internals/plasma/Z = loaded_tank
	if(!Z)
		return
	Z.forceMove(drop_location())
	Z.layer = initial(Z.layer)
	Z.plane = initial(Z.plane)
	loaded_tank = null
	if(active)
		toggle_power()
	else
		update_icons()

/obj/machinery/power/rad_collector/rad_act(amount)
	. = ..()
	if(loaded_tank && active && amount > RAD_COLLECTOR_EFFICIENCY)
		stored_energy += (amount - RAD_COLLECTOR_EFFICIENCY) * RAD_COLLECTOR_COEFFICIENT


/obj/machinery/power/rad_collector/proc/update_icons()
	cut_overlays()
	if(loaded_tank)
		add_overlay("ptank")
	if(stat & (NOPOWER|BROKEN))
		return
	if(active)
		add_overlay(loaded_tank ? "on" : "error")


/obj/machinery/power/rad_collector/proc/toggle_power()
	active = !active
	if(active)
		icon_state = "ca_on"
		flick("ca_active", src)
	else
		icon_state = "ca"
		flick("ca_deactive", src)
	update_icons()

#undef RAD_COLLECTOR_EFFICIENCY
#undef RAD_COLLECTOR_COEFFICIENT
#undef RAD_COLLECTOR_STORED_OUT
#undef RAD_COLLECTOR_OUTPUT