class_name FacilityCatalog
extends RefCounted

## Canonical MVP order from GAME_SPECIFICATION section 7.6.
##
## DefinitionRegistry deliberately sorts its query results by stable ID. This
## list instead preserves the design-table order for tools that present the
## baseline catalog to designers or players.
const BASELINE_FACILITY_IDS: Array[StringName] = [
	&"reception",
	&"standard_room",
	&"cafeteria",
	&"kitchen",
	&"public_bath",
	&"warehouse",
	&"staff_waiting_room",
	&"security_station",
	&"tavern",
	&"massage_room",
	&"guest_elevator",
	&"service_elevator",
	&"staff_door",
	&"guest_corridor",
	&"service_corridor",
	&"adult_private_room",
]

const FACILITY_PATHS: Array[String] = [
	"res://data/facilities/reception.tres",
	"res://data/facilities/standard_room.tres",
	"res://data/facilities/cafeteria.tres",
	"res://data/facilities/kitchen.tres",
	"res://data/facilities/public_bath.tres",
	"res://data/facilities/warehouse.tres",
	"res://data/facilities/staff_waiting_room.tres",
	"res://data/facilities/security_station.tres",
	"res://data/facilities/tavern.tres",
	"res://data/facilities/massage_room.tres",
	"res://data/facilities/guest_elevator.tres",
	"res://data/facilities/service_elevator.tres",
	"res://data/facilities/staff_door.tres",
	"res://data/facilities/guest_corridor.tres",
	"res://data/facilities/service_corridor.tres",
	"res://data/facilities/adult_private_room.tres",
]

## Required movement infrastructure added after the original sixteen-facility
## catalog. Separate paths preserve the baseline design table and legacy scans.
## Original-spec facilities integrated into normal construction beyond baseline.
const ORIGINAL_FACILITY_PATHS: Array[String] = [
	"res://data/facilities/expansion/cleaning_room.tres",
	"res://data/facilities/expansion/chapel.tres",
	"res://data/facilities/expansion/premium_room.tres",
	"res://data/facilities/expansion/staff_dormitory.tres",
]

const RESCUE_FACILITY_PATHS: Array[String] = ["res://data/facilities/rescue/infirmary.tres"]

const INFRASTRUCTURE_FACILITY_IDS: Array[StringName] = [
	&"guest_stairs",
	&"service_stairs",
]

const INFRASTRUCTURE_FACILITY_PATHS: Array[String] = [
	"res://data/facilities/infrastructure/guest_stairs.tres",
	"res://data/facilities/infrastructure/service_stairs.tres",
]

## Optional post-MVP expansion definitions. They live below a subdirectory so
## DefinitionRegistry's baseline directory scan remains exactly compatible with
## existing saves and the sixteen-facility acceptance fixture.
const EXPANSION_FACILITY_IDS: Array[StringName] = [
	&"premium_room",
	&"tea_lounge",
	&"general_store",
	&"clinic",
	&"guild_counter",
	&"underground_guest_room",
	&"private_bath",
	&"secret_tavern",
	&"black_market",
	&"vip_private_salon",
	&"laundry",
	&"cold_storage",
	&"mana_control_room",
	&"maintenance_workshop",
	&"staff_dormitory",
	&"waste_processing",
]

const EXPANSION_FACILITY_PATHS: Array[String] = [
	"res://data/facilities/expansion/premium_room.tres",
	"res://data/facilities/expansion/tea_lounge.tres",
	"res://data/facilities/expansion/general_store.tres",
	"res://data/facilities/expansion/clinic.tres",
	"res://data/facilities/expansion/guild_counter.tres",
	"res://data/facilities/expansion/underground_guest_room.tres",
	"res://data/facilities/expansion/private_bath.tres",
	"res://data/facilities/expansion/secret_tavern.tres",
	"res://data/facilities/expansion/black_market.tres",
	"res://data/facilities/expansion/vip_private_salon.tres",
	"res://data/facilities/expansion/laundry.tres",
	"res://data/facilities/expansion/cold_storage.tres",
	"res://data/facilities/expansion/mana_control_room.tres",
	"res://data/facilities/expansion/maintenance_workshop.tres",
	"res://data/facilities/expansion/staff_dormitory.tres",
	"res://data/facilities/expansion/waste_processing.tres",
]

static func load_all() -> Array[FacilityDefinition]:
	var result: Array[FacilityDefinition] = []
	for path in FACILITY_PATHS:
		var definition := load(path) as FacilityDefinition
		if definition != null:
			result.append(definition)
	return result

static func load_expansion() -> Array[FacilityDefinition]:
	var result: Array[FacilityDefinition] = []
	for path in EXPANSION_FACILITY_PATHS:
		var definition := load(path) as FacilityDefinition
		if definition != null:
			result.append(definition)
	return result

static func load_infrastructure() -> Array[FacilityDefinition]:
	var result: Array[FacilityDefinition] = []
	for path in INFRASTRUCTURE_FACILITY_PATHS:
		var definition := load(path) as FacilityDefinition
		if definition != null:
			result.append(definition)
	return result

static func load_available(include_expansion := false) -> Array[FacilityDefinition]:
	var result := load_all()
	if include_expansion:
		result.append_array(load_expansion())
	return result

static func by_id(facility_id: StringName) -> FacilityDefinition:
	var definitions := load_available(true)
	definitions.append_array(load_infrastructure())
	for path: String in RESCUE_FACILITY_PATHS + ORIGINAL_FACILITY_PATHS:
		definitions.append(load(path) as FacilityDefinition)
	for definition in definitions:
		if definition.id == facility_id:
			return definition
	return null