//Visor modules for MODsuits

///Base Visor - Adds a specific HUD and traits to you.
/obj/item/mod/module/visor
	name = "MOD visor module"
	desc = "A heads-up display installed into the visor of the suit. They say these also let you see behind you."
	module_type = MODULE_TOGGLE
	complexity = 1
	active_power_cost = DEFAULT_CHARGE_DRAIN * 0.3
	incompatible_modules = list(/obj/item/mod/module/visor)
	cooldown_time = 0.5 SECONDS
	materials = list(MAT_SILVER = 2500, MAT_GLASS = 5000)
	/// The HUD type given by the visor.
	var/hud_type
	/// The trait given by the visor.
	var/visor_trait = list()

/obj/item/mod/module/visor/on_activation()
	. = ..()
	if(!.)
		return
	if(hud_type)
		var/datum/atom_hud/hud = GLOB.huds[hud_type]
		hud.add_hud_to(mod.wearer)
	if(length(visor_trait))
		ADD_TRAIT(mod.wearer, visor_trait, MODSUIT_TRAIT)
	mod.wearer.update_sight()

/obj/item/mod/module/visor/on_deactivation(display_message = TRUE, deleting = FALSE)
	. = ..()
	if(!.)
		return
	if(hud_type)
		var/datum/atom_hud/hud = GLOB.huds[hud_type]
		hud.remove_hud_from(mod.wearer)
	if(length(visor_trait))
		REMOVE_TRAIT(mod.wearer, visor_trait, MODSUIT_TRAIT)
	mod.wearer.update_sight()

//Medical Visor - Gives you a medical HUD.
/obj/item/mod/module/visor/medhud
	name = "MOD medical visor module"
	desc = "A heads-up display installed into the visor of the suit. This cross-references suit sensor data with a modern \
		biological scanning suite, allowing the user to visualize the current health of organic lifeforms, as well as \
		access data such as patient files in a convenient readout. They say these also let you see behind you."
	icon_state = "medhud_visor"
	hud_type = DATA_HUD_MEDICAL_ADVANCED

//Diagnostic Visor - Gives you a diagnostic HUD.
/obj/item/mod/module/visor/diaghud
	name = "MOD diagnostic visor module"
	desc = "A heads-up display installed into the visor of the suit. This uses a series of advanced sensors to access data \
		from advanced machinery, exosuits, and other devices, allowing the user to visualize current power levels \
		and integrity of such. They say these also let you see behind you."
	icon_state = "diaghud_visor"
	hud_type = DATA_HUD_DIAGNOSTIC_ADVANCED

//Security Visor - Gives you a security HUD.
/obj/item/mod/module/visor/sechud
	name = "MOD security visor module"
	desc = "A heads-up display installed into the visor of the suit. This module is a heavily-retrofitted targeting system, \
		plugged into various criminal databases to be able to view arrest records, command simple security-oriented robots, \
		and generally know who to shoot. They say these also let you see behind you."
	icon_state = "sechud_visor"
	hud_type = DATA_HUD_SECURITY_ADVANCED

//Meson Visor - Gives you meson vision.
/obj/item/mod/module/visor/meson
	name = "MOD meson visor module"
	desc = "A heads-up display installed into the visor of the suit. This module is based off well-loved meson scanner \
		technology, used by construction workers and miners across the galaxy to see basic structural and terrain layouts \
		through walls, regardless of lighting conditions. They say these also let you see behind you."
	icon_state = "meson_visor"
	visor_trait = TRAIT_MESON_VISION

//Thermal Visor - Gives you thermal vision.
/obj/item/mod/module/visor/thermal
	name = "MOD thermal visor module"
	desc = "A heads-up display installed into the visor of the suit. This uses a small IR scanner to detect and identify \
		the thermal radiation output of objects near the user. While it can detect the heat output of even something as \
		small as a rodent, it still produces irritating red overlay. They say these also let you see behind you."
	icon_state = "thermal_visor"
	origin_tech = "combat=6;engineering=6;syndicate=2"
	visor_trait = TRAIT_THERMAL_VISION

//Night Visor - Gives you night vision.
/obj/item/mod/module/visor/night
	name = "MOD night visor module"
	desc = "A heads-up display installed into the visor of the suit. Typical for both civilian and military applications, \
		this allows the user to perceive their surroundings while in complete darkness, enhancing the view by tenfold; \
		yet brightening everything into a spooky green glow. They say these also let you see behind you."
	icon_state = "night_visor"
	origin_tech = "combat=5;engineering=5;syndicate=1"
	visor_trait = TRAIT_NIGHT_VISION