Refactor announcements. (#19459)

* Refactor announcements.

* Actually make this a unit test

* Dumb

* Remove unnecessary 'as text'

* Reviews:

- Make CSS class a recognizable word
- Flip the defaults for logging

Also:

- Style fixes (default null in fields)
- Fix emergency/crew-transfer shuttle announcement titles

code/modules/security_levels/security_levels.dm

@@ -7,8 +7,7 @@ GLOBAL_VAR_INIT(security_level, 0)
 //5 = code delta
 
 //config.alert_desc_blue_downto
-GLOBAL_DATUM_INIT(security_announcement_up, /datum/announcement/priority/security, new(do_log = FALSE, new_sound = sound('sound/misc/notice1.ogg')))
-GLOBAL_DATUM_INIT(security_announcement_down, /datum/announcement/priority/security, new(do_log = FALSE))
+GLOBAL_DATUM_INIT(security_announcement, /datum/announcer, new(config_type = /datum/announcement_configuration/security))
 
 /proc/set_security_level(level)
 	switch(level)
@@ -33,7 +32,7 @@ GLOBAL_DATUM_INIT(security_announcement_down, /datum/announcement/priority/secur
 
 		switch(level)
 			if(SEC_LEVEL_GREEN)
-				GLOB.security_announcement_down.Announce("All threats to the station have passed. All weapons need to be holstered and privacy laws are once again fully enforced.","Attention! Security level lowered to green.", 'sound/AI/green.ogg')
+				GLOB.security_announcement.Announce("All threats to the station have passed. All weapons need to be holstered and privacy laws are once again fully enforced.","Attention! Security level lowered to green.", 'sound/AI/green.ogg')
 				GLOB.security_level = SEC_LEVEL_GREEN
 				unset_stationwide_emergency_lighting()
 				post_status(STATUS_DISPLAY_TRANSFER_SHUTTLE_TIME)
@@ -41,9 +40,9 @@ GLOBAL_DATUM_INIT(security_announcement_down, /datum/announcement/priority/secur
 
 			if(SEC_LEVEL_BLUE)
 				if(GLOB.security_level < SEC_LEVEL_BLUE)
-					GLOB.security_announcement_up.Announce("The station has received reliable information about possible hostile activity on the station. Security staff may have weapons visible and random searches are permitted.","Attention! Security level elevated to blue.", 'sound/AI/blue.ogg')
+					GLOB.security_announcement.Announce("The station has received reliable information about possible hostile activity on the station. Security staff may have weapons visible and random searches are permitted.","Attention! Security level elevated to blue.", 'sound/AI/blue.ogg')
 				else
-					GLOB.security_announcement_down.Announce("The immediate threat has passed. Security may no longer have weapons drawn at all times, but may continue to have them visible. Random searches are still allowed.","Attention! Security level lowered to blue.", 'sound/AI/blue.ogg')
+					GLOB.security_announcement.Announce("The immediate threat has passed. Security may no longer have weapons drawn at all times, but may continue to have them visible. Random searches are still allowed.","Attention! Security level lowered to blue.", 'sound/AI/blue.ogg')
 				GLOB.security_level = SEC_LEVEL_BLUE
 
 				post_status(STATUS_DISPLAY_TRANSFER_SHUTTLE_TIME)
@@ -52,9 +51,9 @@ GLOBAL_DATUM_INIT(security_announcement_down, /datum/announcement/priority/secur
 
 			if(SEC_LEVEL_RED)
 				if(GLOB.security_level < SEC_LEVEL_RED)
-					GLOB.security_announcement_up.Announce("There is an immediate and serious threat to the station. Security may have weapons unholstered at all times. Random searches are allowed and advised.","Attention! Code Red!", 'sound/AI/red.ogg')
+					GLOB.security_announcement.Announce("There is an immediate and serious threat to the station. Security may have weapons unholstered at all times. Random searches are allowed and advised.","Attention! Code Red!", 'sound/AI/red.ogg')
 				else
-					GLOB.security_announcement_down.Announce("The station's self-destruct mechanism has been deactivated, but there is still an immediate and serious threat to the station. Security may have weapons unholstered at all times. Random searches are allowed and advised.","Attention! Code Red!", 'sound/AI/red.ogg')
+					GLOB.security_announcement.Announce("The station's self-destruct mechanism has been deactivated, but there is still an immediate and serious threat to the station. Security may have weapons unholstered at all times. Random searches are allowed and advised.","Attention! Code Red!", 'sound/AI/red.ogg')
 					unset_stationwide_emergency_lighting()
 				GLOB.security_level = SEC_LEVEL_RED
 
@@ -66,7 +65,7 @@ GLOBAL_DATUM_INIT(security_announcement_down, /datum/announcement/priority/secur
 				update_firealarms()
 
 			if(SEC_LEVEL_GAMMA)
-				GLOB.security_announcement_up.Announce("Central Command has ordered the Gamma security level on the station. Security is to have weapons equipped at all times, and all civilians are to immediately seek their nearest head for transportation to a secure location.", "Attention! Gamma security level activated!", 'sound/effects/new_siren.ogg', new_sound2 = 'sound/AI/gamma.ogg')
+				GLOB.security_announcement.Announce("Central Command has ordered the Gamma security level on the station. Security is to have weapons equipped at all times, and all civilians are to immediately seek their nearest head for transportation to a secure location.", "Attention! Gamma security level activated!", 'sound/effects/new_siren.ogg', new_sound2 = 'sound/AI/gamma.ogg')
 				GLOB.security_level = SEC_LEVEL_GAMMA
 
 				if(GLOB.security_level < SEC_LEVEL_RED)
@@ -89,7 +88,7 @@ GLOBAL_DATUM_INIT(security_announcement_down, /datum/announcement/priority/secur
 				return
 
 			if(SEC_LEVEL_DELTA)
-				GLOB.security_announcement_up.Announce("The station's self-destruct mechanism has been engaged. All crew are instructed to obey all instructions given by heads of staff. Any violations of these orders can be punished by death. This is not a drill.","Attention! Delta security level reached!", 'sound/effects/deltaalarm.ogg', new_sound2 = 'sound/AI/delta.ogg')
+				GLOB.security_announcement.Announce("The station's self-destruct mechanism has been engaged. All crew are instructed to obey all instructions given by heads of staff. Any violations of these orders can be punished by death. This is not a drill.","Attention! Delta security level reached!", 'sound/effects/deltaalarm.ogg', new_sound2 = 'sound/AI/delta.ogg')
 				GLOB.security_level = SEC_LEVEL_DELTA
 
 				post_status(STATUS_DISPLAY_ALERT, "deltaalert")
@@ -204,7 +203,7 @@ GLOBAL_DATUM_INIT(security_announcement_down, /datum/announcement/priority/secur
 			INVOKE_ASYNC(L, /obj/machinery/light/.proc/update, FALSE)
 
 /proc/epsilon_process()
-	GLOB.security_announcement_up.Announce("Central Command has ordered the Epsilon security level on the station. Consider all contracts terminated.", "Attention! Epsilon security level activated!", 'sound/effects/purge_siren.ogg')
+	GLOB.security_announcement.Announce("Central Command has ordered the Epsilon security level on the station. Consider all contracts terminated.", "Attention! Epsilon security level activated!", 'sound/effects/purge_siren.ogg')
 	GLOB.security_level = SEC_LEVEL_EPSILON
 	post_status(STATUS_DISPLAY_ALERT, "epsilonalert")
 	for(var/area/A as anything in GLOB.all_areas)