ya guys like wiring?

sandcode/code/__DEFINES/wires.dm

@@ -0,0 +1,3 @@
+#define WIRE_FIRE_TOGGLE "Alarm toggle"
+#define WIRE_FIRE_DETECT "Fire detection"
+#define WIRE_FIRE_TRIGGER "Alarm trigger"

sandcode/code/datums/wires/firealarm.dm

@@ -0,0 +1,61 @@
+/datum/wires/firealarm
+	holder_type = /obj/machinery/firealarm
+	proper_name = "Fire alarm's"
+	req_knowledge = JOB_SKILL_MASTER
+
+/datum/wires/firealarm/New(atom/holder)
+	wires = list(
+		WIRE_FIRE_TOGGLE,
+		WIRE_FIRE_DETECT,
+		WIRE_FIRE_TRIGGER
+	)
+	add_duds(2)
+	..()
+
+/datum/wires/firealarm/interactable(mob/user)
+	var/obj/machinery/firealarm/A = holder
+	if(A.panel_open)
+		return TRUE
+
+/datum/wires/firealarm/get_status()
+	var/obj/machinery/firealarm/A = holder
+	var/list/status = list()
+	status += "The alarm light is [A.alarm_active ? "blinking red" : "green"]."
+	status += "The fire detection light is [A.detecting ? "on" : "off"]."
+	status += "The button wire is [A.button_wire_cut ? "cut" : "connected"]."
+	return status
+
+/datum/wires/firealarm/on_pulse(wire)
+	var/obj/machinery/firealarm/A = holder
+	switch(wire)
+		if(WIRE_FIRE_TOGGLE) // ohno, fire!
+			if(A.alarm_active && !A.wire_override)
+				A.reset()
+			else if(!A.alarm_active)
+				A.alarm() //no wire_override here, it's just a pulse.
+		if(WIRE_FIRE_DETECT)
+			A.detecting = !A.detecting
+		if(WIRE_FIRE_TRIGGER)
+			A.alarm()
+			addtimer(CALLBACK(A, /obj/machinery/firealarm.proc/reset, wire), 1000)				
+
+/datum/wires/firealarm/on_cut(index, mend)
+	var/obj/machinery/firealarm/A = holder
+	switch(index)
+		if(WIRE_FIRE_TOGGLE)
+			if(mend)
+				A.wire_override = FALSE
+				A.reset()
+			else
+				A.wire_override = TRUE
+				A.alarm()
+		if(WIRE_FIRE_DETECT)
+			if(mend)
+				A.detecting = TRUE
+			else
+				A.detecting = FALSE
+		if(WIRE_FIRE_TRIGGER)
+			if(mend)
+				A.button_wire_cut = FALSE
+			else
+				A.button_wire_cut = TRUE