<?php
/**
 * Business Subtype Mapper.
 *
 * Maps a user-selected business subtype to the most specific schema.org @type.
 * Subtypes are organised by local-business site-type category so the settings
 * page can filter the dropdown to show only relevant options.
 *
 * All schema.org types here are subtypes of LocalBusiness, so the @id
 * convention ({site_url}/#localbusiness) stays consistent regardless of subtype.
 *
 * @package Schema_AI
 * @since   1.1.4
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class Schema_AI_Business_Subtype {

	/**
	 * Map of subtype slug → schema.org @type string.
	 *
	 * @var array<string, string>
	 */
	private static $map = array(

		// Home Services
		'general_contractor'  => 'GeneralContractor',
		'roofing'             => 'RoofingContractor',
		'plumbing'            => 'Plumber',
		'electrical'          => 'Electrician',
		'hvac'                => 'HVACBusiness',
		'painting'            => 'HousePainter',
		'locksmith'           => 'Locksmith',
		'moving'              => 'MovingCompany',
		'cleaning'            => 'HomeAndConstructionBusiness',
		'landscaping'         => 'HomeAndConstructionBusiness',
		'pest_control'        => 'HomeAndConstructionBusiness',
		'pool_service'        => 'HomeAndConstructionBusiness',
		'home_repair'         => 'HomeAndConstructionBusiness',

		// Automotive
		'auto_repair'         => 'AutoRepair',
		'auto_dealer'         => 'AutoDealer',
		'car_wash'            => 'AutoWash',
		'towing'              => 'AutomotiveBusiness',

		// Food & Hospitality
		'restaurant'          => 'Restaurant',
		'cafe'                => 'CafeOrCoffeeShop',
		'bar'                 => 'BarOrPub',
		'bakery'              => 'Bakery',
		'catering'            => 'FoodEstablishment',
		'food_truck'          => 'FoodEstablishment',
		'fast_food'           => 'FastFoodRestaurant',
		'ice_cream'           => 'IceCreamShop',
		'winery'              => 'Winery',
		'brewery'             => 'Brewery',

		// Accommodation & Travel
		'hotel'               => 'Hotel',
		'motel'               => 'Motel',
		'hostel'              => 'Hostel',
		'bed_breakfast'       => 'BedAndBreakfast',
		'vacation_rental'     => 'VacationRental',
		'campground'          => 'Campground',
		'resort'              => 'Resort',

		// Health & Medical
		'dentist'             => 'Dentist',
		'physician'           => 'Physician',
		'pharmacy'            => 'Pharmacy',
		'hospital'            => 'Hospital',
		'emergency_service'   => 'EmergencyService',
		'chiropractor'        => 'MedicalClinic',
		'optometrist'         => 'Optician',
		'therapist'           => 'MedicalClinic',
		'medical_clinic'      => 'MedicalClinic',
		'nursing_home'        => 'MedicalClinic',
		'blood_bank'          => 'MedicalClinic',

		// Beauty & Wellness
		'hair_salon'          => 'HairSalon',
		'spa'                 => 'DaySpa',
		'nail_salon'          => 'NailSalon',
		'gym'                 => 'ExerciseGym',
		'yoga_studio'         => 'SportsActivityLocation',
		'beauty_salon'        => 'BeautySalon',
		'massage'             => 'HealthAndBeautyBusiness',
		'tattoo'              => 'TattooParlor',

		// Legal & Financial
		'attorney'            => 'Attorney',
		'accountant'          => 'AccountingService',
		'financial'           => 'FinancialService',
		'insurance'           => 'InsuranceAgency',
		'bank'                => 'BankOrCreditUnion',
		'mortgage'            => 'FinancialService',

		// Real Estate
		'real_estate'         => 'RealEstateAgent',
		'property_mgmt'       => 'RealEstateAgent',

		// Retail
		'store'               => 'Store',
		'clothing_store'      => 'ClothingStore',
		'shoe_store'          => 'ShoeStore',
		'book_store'          => 'BookStore',
		'electronics_store'   => 'ElectronicsStore',
		'furniture_store'     => 'FurnitureStore',
		'hardware_store'      => 'HardwareStore',
		'grocery_store'       => 'GroceryStore',
		'jewelry_store'       => 'JewelryStore',
		'toy_store'           => 'ToyStore',
		'pet_store'           => 'PetStore',
		'florist'             => 'Florist',
		'sporting_goods'      => 'SportingGoodsStore',

		// Entertainment
		'movie_theater'       => 'MovieTheater',
		'bowling_alley'       => 'BowlingAlley',
		'amusement_park'      => 'AmusementPark',
		'museum'              => 'Museum',
		'art_gallery'         => 'ArtGallery',
		'casino'              => 'Casino',
		'golf_course'         => 'GolfCourse',
		'stadium'             => 'StadiumOrArena',
		'comedy_club'         => 'ComedyClub',
		'night_club'          => 'NightClub',
		'music_venue'         => 'MusicVenue',

		// Sports & Recreation
		'sports_club'         => 'SportsClub',
		'sports_activity'     => 'SportsActivityLocation',
		'ski_resort'          => 'SkiResort',
		'tennis'              => 'TennisComplex',
		'bike_shop'           => 'SportingGoodsStore',

		// Education & Training
		'school'              => 'School',
		'preschool'           => 'Preschool',
		'university'          => 'CollegeOrUniversity',
		'tutoring'            => 'EducationalOrganization',
		'driving_school'      => 'School',
		'music_school'        => 'School',
		'language_school'     => 'School',
		'dance_studio'        => 'School',
		'dental_academy'      => 'EducationalOrganization',

		// Pet Services
		'veterinary'          => 'VeterinaryCare',
		'pet_grooming'        => 'AnimalShelter',
		'dog_daycare'         => 'AnimalShelter',

		// Professional Services
		'marketing_agency'    => 'LocalBusiness',
		'recruiting'          => 'EmploymentAgency',
		'travel_agency'       => 'TravelAgency',
		'shipping'            => 'Service',
		'architect'           => 'Service',
		'photographer'        => 'Service',
		'dei_coach'           => 'Service',
		'design_agency'       => 'Service',
		'printing_company'    => 'LocalBusiness',

		// Religious Organization
		'church'              => 'Church',
		'mosque'              => 'Mosque',
		'synagogue'           => 'Synagogue',
		'hindu_temple'        => 'HinduTemple',
		'buddhist_temple'     => 'BuddhistTemple',
		'general_religious'   => 'PlaceOfWorship',

		// Childcare
		'childcare_center'    => 'ChildCare',
		'daycare'             => 'ChildCare',
		'nursery'             => 'ChildCare',
		'afterschool'         => 'ChildCare',
		'babysitter'          => 'ChildCare',

		// Fallback
		'local_business'      => 'LocalBusiness',

		// Added from the schema.org type audit: every remaining Organization/
		// Place business type not already covered above, mechanically slugged
		// from the real schema.org type name. Kept 1:1 with
		// frontend/src/lib/site-types.ts and backend/src/lib/siteTypes.ts.
		'auto_body_shop'              => 'AutoBodyShop',
		'auto_parts_store'            => 'AutoPartsStore',
		'auto_rental'                 => 'AutoRental',
		'motorcycle_dealer'           => 'MotorcycleDealer',
		'motorcycle_repair'           => 'MotorcycleRepair',
		'tire_shop'                   => 'TireShop',
		'gas_station'                 => 'GasStation',
		'computer_store'              => 'ComputerStore',
		'convenience_store'           => 'ConvenienceStore',
		'department_store'            => 'DepartmentStore',
		'garden_store'                => 'GardenStore',
		'home_goods_store'            => 'HomeGoodsStore',
		'liquor_store'                => 'LiquorStore',
		'mens_clothing_store'         => 'MensClothingStore',
		'mobile_phone_store'          => 'MobilePhoneStore',
		'movie_rental_store'          => 'MovieRentalStore',
		'music_store'                 => 'MusicStore',
		'office_equipment_store'      => 'OfficeEquipmentStore',
		'outlet_store'                => 'OutletStore',
		'pawn_shop'                   => 'PawnShop',
		'shopping_center'             => 'ShoppingCenter',
		'wholesale_store'             => 'WholesaleStore',
		'bike_store'                  => 'BikeStore',
		'hobby_shop'                  => 'HobbyShop',
		'dry_cleaning_or_laundry'     => 'DryCleaningOrLaundry',
		'self_storage'                => 'SelfStorage',
		'recycling_center'            => 'RecyclingCenter',
		'covid_testing_facility'      => 'CovidTestingFacility',
		'diagnostic_lab'              => 'DiagnosticLab',
		'individual_physician'        => 'IndividualPhysician',
		'medical_business'            => 'MedicalBusiness',
		'medical_organization'        => 'MedicalOrganization',
		'physicians_office'           => 'PhysiciansOffice',
		'health_club'                 => 'HealthClub',
		'public_swimming_pool'        => 'PublicSwimmingPool',
		'adult_entertainment'         => 'AdultEntertainment',
		'entertainment_business'      => 'EntertainmentBusiness',
		'internet_cafe'               => 'InternetCafe',
		'elementary_school'           => 'ElementarySchool',
		'high_school'                 => 'HighSchool',
		'middle_school'               => 'MiddleSchool',
		'library'                     => 'Library',
		'library_system'              => 'LibrarySystem',
		'legal_service'               => 'LegalService',
		'notary'                      => 'Notary',
		'professional_service'        => 'ProfessionalService',
		'automated_teller'            => 'AutomatedTeller',
		'tourist_information_center'  => 'TouristInformationCenter',
		'distillery'                  => 'Distillery',
		'government_office'           => 'GovernmentOffice',
		'police_station'              => 'PoliceStation',
		'fire_station'                => 'FireStation',
		'post_office'                 => 'PostOffice',
		'search_rescue_organization'  => 'SearchRescueOrganization',
		'government_organization'     => 'GovernmentOrganization',
		'radio_station'               => 'RadioStation',
		'television_station'          => 'TelevisionStation',
		'news_media_organization'     => 'NewsMediaOrganization',
		'ngo'                         => 'NGO',
		'funding_agency'              => 'FundingAgency',
		'funding_scheme'              => 'FundingScheme',
		'consortium'                  => 'Consortium',
		'cooperative'                 => 'Cooperative',
		'corporation'                 => 'Corporation',
		'music_group'                 => 'MusicGroup',
		'performing_group'            => 'PerformingGroup',
		'dance_group'                 => 'DanceGroup',
		'theater_group'               => 'TheaterGroup',
		'sports_organization'         => 'SportsOrganization',
		'sports_team'                 => 'SportsTeam',
		'political_party'             => 'PoliticalParty',
		'workers_union'               => 'WorkersUnion',
		'research_organization'       => 'ResearchOrganization',
		'research_project'            => 'ResearchProject',
		'archive_organization'        => 'ArchiveOrganization',
		'project'                     => 'Project',
		'airline'                     => 'Airline',
		'online_business'             => 'OnlineBusiness',
		'online_marketplace'          => 'OnlineMarketplace',
		'online_store'                => 'OnlineStore',

		// Software / SaaS / App
		'web_application'             => 'WebApplication',
		'mobile_application'          => 'MobileApplication',
		'software_application'        => 'SoftwareApplication',
		'web_api'                     => 'WebAPI',
		'software_source_code'        => 'SoftwareSourceCode',
	);

	/**
	 * Subtypes grouped by site type category slug.
	 *
	 * Determines which subtypes appear in the dropdown when a particular
	 * site type is selected. Used by the settings page JS.
	 *
	 * @var array<string, array<string, string>> slug → label
	 */
	private static $categories = array(

		'home_services' => array(
			'general_contractor' => 'General Contractor',
			'roofing'            => 'Roofing Contractor',
			'plumbing'           => 'Plumber',
			'electrical'         => 'Electrician',
			'hvac'               => 'HVAC / Heating & Cooling',
			'painting'           => 'Painter',
			'locksmith'          => 'Locksmith',
			'moving'             => 'Moving Company',
			'cleaning'           => 'Cleaning Service',
			'landscaping'        => 'Landscaping',
			'pest_control'       => 'Pest Control',
			'pool_service'       => 'Pool Service',
			'home_repair'        => 'Home Repair / Handyman',
			'dry_cleaning_or_laundry' => 'Dry Cleaning / Laundry',
			'self_storage'       => 'Self Storage',
			'recycling_center'   => 'Recycling Center',
		),

		'restaurant_food' => array(
			'restaurant'  => 'Restaurant',
			'cafe'        => 'Café / Coffee Shop',
			'bar'         => 'Bar / Pub',
			'bakery'      => 'Bakery',
			'catering'    => 'Catering',
			'food_truck'  => 'Food Truck',
			'fast_food'   => 'Fast Food',
			'ice_cream'   => 'Ice Cream Shop',
			'winery'      => 'Winery',
			'brewery'     => 'Brewery',
			'distillery'  => 'Distillery',
		),

		'health_medical' => array(
			'dentist'           => 'Dentist',
			'physician'         => 'Physician / Medical Practice',
			'pharmacy'          => 'Pharmacy',
			'hospital'          => 'Hospital',
			'emergency_service' => 'Emergency Service',
			'chiropractor'      => 'Chiropractor',
			'optometrist'       => 'Optometrist / Eye Care',
			'therapist'         => 'Therapist / Mental Health',
			'medical_clinic'    => 'Medical Clinic',
			'covid_testing_facility' => 'COVID Testing Facility',
			'diagnostic_lab'    => 'Diagnostic Lab',
			'individual_physician' => 'Individual Physician',
			'medical_business'  => 'Medical Business',
			'medical_organization' => 'Medical Organization',
			'physicians_office' => 'Physician\'s Office',
		),

		'beauty_wellness' => array(
			'hair_salon'   => 'Hair Salon / Barber',
			'spa'          => 'Day Spa',
			'nail_salon'   => 'Nail Salon',
			'gym'          => 'Gym / Fitness Center',
			'yoga_studio'  => 'Yoga / Pilates Studio',
			'beauty_salon' => 'Beauty Salon',
			'massage'      => 'Massage Therapy',
			'tattoo'       => 'Tattoo Parlor',
			'health_club'  => 'Health Club',
		),

		'automotive' => array(
			'auto_repair' => 'Auto Repair / Mechanic',
			'auto_dealer' => 'Auto Dealer',
			'car_wash'    => 'Car Wash / Detailing',
			'towing'      => 'Towing Service',
			'auto_body_shop'   => 'Auto Body Shop',
			'auto_parts_store' => 'Auto Parts Store',
			'auto_rental'      => 'Auto Rental',
			'motorcycle_dealer' => 'Motorcycle Dealer',
			'motorcycle_repair' => 'Motorcycle Repair',
			'tire_shop'        => 'Tire Shop',
			'gas_station'      => 'Gas Station',
		),

		'real_estate' => array(
			'real_estate'  => 'Real Estate Agent',
			'property_mgmt' => 'Property Management',
		),

		'retail_store' => array(
			'store'            => 'General Retail Store',
			'clothing_store'   => 'Clothing Store',
			'shoe_store'       => 'Shoe Store',
			'book_store'       => 'Book Store',
			'electronics_store'=> 'Electronics Store',
			'furniture_store'  => 'Furniture Store',
			'hardware_store'   => 'Hardware Store',
			'grocery_store'    => 'Grocery Store',
			'jewelry_store'    => 'Jewelry Store',
			'toy_store'        => 'Toy Store',
			'pet_store'        => 'Pet Store',
			'florist'          => 'Florist',
			'sporting_goods'   => 'Sporting Goods Store',
			'computer_store'         => 'Computer Store',
			'convenience_store'      => 'Convenience Store',
			'department_store'       => 'Department Store',
			'garden_store'           => 'Garden Store',
			'home_goods_store'       => 'Home Goods Store',
			'liquor_store'           => 'Liquor Store',
			'mens_clothing_store'    => 'Men\'s Clothing Store',
			'mobile_phone_store'     => 'Mobile Phone Store',
			'movie_rental_store'     => 'Movie Rental Store',
			'music_store'            => 'Music Store',
			'office_equipment_store' => 'Office Equipment Store',
			'outlet_store'           => 'Outlet Store',
			'pawn_shop'              => 'Pawn Shop',
			'shopping_center'        => 'Shopping Center',
			'wholesale_store'        => 'Wholesale Store',
			'bike_store'             => 'Bike Store',
			'hobby_shop'             => 'Hobby Shop',
		),

		'accommodation' => array(
			'hotel'          => 'Hotel',
			'motel'          => 'Motel',
			'hostel'         => 'Hostel',
			'bed_breakfast'  => 'Bed & Breakfast',
			'vacation_rental'=> 'Vacation Rental',
			'campground'     => 'Campground',
			'resort'         => 'Resort',
			'tourist_information_center' => 'Tourist Information Center',
		),

		'entertainment' => array(
			'movie_theater' => 'Movie Theater',
			'bowling_alley' => 'Bowling Alley',
			'amusement_park'=> 'Amusement Park',
			'museum'        => 'Museum',
			'art_gallery'   => 'Art Gallery',
			'casino'        => 'Casino',
			'golf_course'   => 'Golf Course',
			'stadium'       => 'Stadium / Arena',
			'comedy_club'   => 'Comedy Club',
			'night_club'    => 'Night Club',
			'music_venue'   => 'Music Venue',
			'adult_entertainment'    => 'Adult Entertainment',
			'entertainment_business' => 'Entertainment Business',
			'internet_cafe'          => 'Internet Cafe',
		),

		'sports_recreation' => array(
			'gym'            => 'Gym / Fitness Center',
			'sports_club'    => 'Sports Club',
			'sports_activity'=> 'Sports Activity Location',
			'ski_resort'     => 'Ski Resort',
			'tennis'         => 'Tennis Club',
			'golf_course'    => 'Golf Course',
			'public_swimming_pool' => 'Public Swimming Pool',
		),

		'education_training' => array(
			'school'          => 'School',
			'preschool'       => 'Preschool',
			'university'      => 'College / University',
			'tutoring'        => 'Tutoring Center',
			'driving_school'  => 'Driving School',
			'music_school'    => 'Music School',
			'language_school' => 'Language School',
			'dance_studio'    => 'Dance Studio',
			'dental_academy'  => 'Dental Academy / Dental School',
			'elementary_school' => 'Elementary School',
			'high_school'     => 'High School',
			'middle_school'   => 'Middle School',
			'library'         => 'Library',
			'library_system'  => 'Library System',
		),

		'pet_services' => array(
			'veterinary'   => 'Veterinary / Animal Care',
			'pet_store'    => 'Pet Store',
			'pet_grooming' => 'Pet Grooming',
			'dog_daycare'  => 'Dog Daycare / Boarding',
		),

		'professional_services' => array(
			'attorney'         => 'Attorney / Law Firm',
			'accountant'       => 'Accountant / CPA',
			'financial'        => 'Financial Services',
			'insurance'        => 'Insurance Agency',
			'real_estate'      => 'Real Estate Agent',
			'bank'             => 'Bank / Credit Union',
			'mortgage'         => 'Mortgage Lender',
			'marketing_agency' => 'Marketing Agency',
			'recruiting'       => 'Recruitment / Staffing',
			'travel_agency'    => 'Travel Agency',
			'architect'        => 'Architect',
			'photographer'     => 'Photographer / Videographer',
			'dei_coach'        => 'DEI Coach / Consultant',
			'design_agency'    => 'Design Agency',
			'printing_company' => 'Printing Company',
			'legal_service'         => 'Legal Service (Other)',
			'notary'                => 'Notary',
			'professional_service'  => 'Professional Service (Other)',
			'automated_teller'      => 'Automated Teller (ATM)',
		),

		'religious_org' => array(
			'church'            => 'Church',
			'mosque'            => 'Mosque',
			'synagogue'         => 'Synagogue',
			'hindu_temple'      => 'Hindu Temple',
			'buddhist_temple'   => 'Buddhist Temple',
			'general_religious' => 'Other / General Religious Organization',
		),

		'childcare' => array(
			'childcare_center' => 'Childcare Center',
			'daycare'          => 'Daycare',
			'nursery'          => 'Nursery',
			'afterschool'      => 'After-School Care',
			'babysitter'       => 'Babysitter / Nanny Service',
		),

		'general_local_business' => array(
			'local_business' => 'Other Local Business',
		),

		// These four previously had no subtype list at all: the subtype row
		// only showed for local-business categories. That restriction is
		// lifted (see has_subtypes() below and the settings/wizard JS), so
		// these now get their own subtype dropdown too.
		'government' => array(
			'government_office' => 'Government Office',
			'police_station'    => 'Police Station',
			'fire_station'      => 'Fire Station',
			'post_office'       => 'Post Office',
			'search_rescue_organization' => 'Search & Rescue Organization',
			'government_organization'    => 'Other Government Organization',
		),

		'news_media' => array(
			'news_media_organization' => 'News / Media Organization (General)',
			'radio_station'           => 'Radio Station',
			'television_station'      => 'Television Station',
		),

		'nonprofit' => array(
			'ngo'             => 'NGO',
			'funding_agency'  => 'Funding Agency',
			'funding_scheme'  => 'Funding Scheme',
		),

		// Non-local organization types that don't fit any category above:
		// media/performance groups, sports organizations, and corporate/legal
		// structures.
		'organizations_groups' => array(
			'consortium'            => 'Consortium',
			'cooperative'           => 'Cooperative',
			'corporation'           => 'Corporation',
			'music_group'           => 'Music Group',
			'performing_group'      => 'Performing Group',
			'dance_group'           => 'Dance Group',
			'theater_group'         => 'Theater Group',
			'sports_organization'   => 'Sports Organization',
			'sports_team'           => 'Sports Team',
			'political_party'       => 'Political Party',
			'workers_union'         => 'Workers Union',
			'research_organization' => 'Research Organization',
			'research_project'      => 'Research Project',
			'archive_organization'  => 'Archive Organization',
			'project'               => 'Project',
			'airline'               => 'Airline',
			'online_business'       => 'Online Business (General)',
			'online_marketplace'    => 'Online Marketplace',
			'online_store'          => 'Online Store',
		),

		// The "Software / SaaS / App" site type previously had no subtype list at
		// all, so it always resolved to the generic 'Organization' entity type
		// regardless of what the product actually is — a browser-based SaaS
		// dashboard and a native mobile app are different schema.org types.
		'software_saas' => array(
			'web_application'      => 'Web Application (SaaS)',
			'mobile_application'   => 'Mobile App',
			'software_application' => 'Software Application (general)',
			'web_api'              => 'API / Developer Platform',
			'software_source_code' => 'Open Source / Developer Tool',
		),
	);

	/**
	 * Resolve a subtype slug to the schema.org @type string.
	 *
	 * @param string $slug Subtype slug from plugin settings.
	 * @return string Schema.org type string.
	 */
	public static function get_type( $slug ) {
		if ( empty( $slug ) || ! isset( self::$map[ $slug ] ) ) {
			return 'LocalBusiness';
		}
		return self::$map[ $slug ];
	}

	/**
	 * Get schema.org type from plugin settings.
	 *
	 * @return string Schema.org type string.
	 */
	public static function get_type_from_settings() {
		$settings = get_option( 'schema_ai_settings', array() );
		$slug     = isset( $settings['business_subtype'] ) ? $settings['business_subtype'] : '';
		return self::get_type( $slug );
	}

	/**
	 * Get all subtype options for a flat <select> dropdown (backward compat).
	 *
	 * @return array Array of [ 'value' => slug, 'label' => human label ] arrays.
	 */
	public static function get_options() {
		$options = array( array( 'value' => '', 'label' => __( '— Select your business type —', 'ai-schema-gen' ) ) );

		foreach ( self::$categories as $category_subtypes ) {
			foreach ( $category_subtypes as $slug => $label ) {
				$options[] = array( 'value' => $slug, 'label' => $label );
			}
		}

		return $options;
	}

	/**
	 * Get subtype options organised by site type category for JS-driven filtering.
	 *
	 * Returns an array keyed by site_type_slug, each containing an array of
	 * [ 'value' => subtype_slug, 'label' => human label ].
	 * Used by the settings page to show only relevant subtypes.
	 *
	 * @return array
	 */
	public static function get_options_by_category() {
		$result = array();

		foreach ( self::$categories as $site_type_slug => $subtypes ) {
			$result[ $site_type_slug ] = array();
			foreach ( $subtypes as $slug => $label ) {
				$result[ $site_type_slug ][] = array(
					'value' => $slug,
					'label' => $label,
				);
			}
		}

		return $result;
	}

	/**
	 * Check whether a subtype slug is valid.
	 *
	 * @param string $slug The subtype slug to validate.
	 * @return bool
	 */
	public static function is_valid( $slug ) {
		return isset( self::$map[ $slug ] );
	}

	/**
	 * Whether a given site type category has any subtype options at all.
	 *
	 * Replaces the old "is_local_business()" gate for showing the subtype
	 * dropdown: that gate silently hid subtypes for government/news_media/
	 * nonprofit/organizations_groups even after they got their own subtype
	 * lists, since those categories aren't "local". Presence of a non-empty
	 * category here is the correct signal on its own.
	 *
	 * @param string $site_type_slug Site type category slug.
	 * @return bool
	 */
	public static function has_subtypes( $site_type_slug ) {
		return ! empty( $site_type_slug )
			&& isset( self::$categories[ $site_type_slug ] )
			&& ! empty( self::$categories[ $site_type_slug ] );
	}

	/**
	 * Get every site type category slug that has at least one subtype option.
	 *
	 * Used by the settings page / setup wizard JS to decide whether to show
	 * the subtype row for the currently selected site type.
	 *
	 * @return string[]
	 */
	public static function get_categories_with_subtypes() {
		return array_keys( self::$categories );
	}
}