/** Philippines administrative region identifiers (PSA). */
export const ADMIN_REGION_IDS = [
  'NCR',
  'CAR',
  'ILOCOS',
  'CAGAYAN_VALLEY',
  'CENTRAL_LUZON',
  'CALABARZON',
  'MIMAROPA',
  'BICOL',
  'WESTERN_VISAYAS',
  'CENTRAL_VISAYAS',
  'EASTERN_VISAYAS',
  'ZAMBOANGA_PENINSULA',
  'NORTHERN_MINDANAO',
  'DAVAO',
  'SOCCSKSARGEN',
  'CARAGA',
  'BARMM',
] as const;

export type AdminRegionId = (typeof ADMIN_REGION_IDS)[number];

export const ISLAND_GROUP_IDS = ['LUZON', 'VISAYAS', 'MINDANAO'] as const;
export type IslandGroupId = (typeof ISLAND_GROUP_IDS)[number];

export interface CityDefinition {
  key: string;
  label: string;
  slug: string;
  lat: number;
  lng: number;
  adminRegion: AdminRegionId;
  islandGroup: IslandGroupId;
}

/** Major cities and municipalities — worker-selectable service areas. */
export const CITY_DEFINITIONS: CityDefinition[] = [
  // NCR
  { key: 'MANILA', label: 'Manila', slug: 'manila', lat: 14.5995, lng: 120.9842, adminRegion: 'NCR', islandGroup: 'LUZON' },
  { key: 'QUEZON_CITY', label: 'Quezon City', slug: 'quezon-city', lat: 14.676, lng: 121.0437, adminRegion: 'NCR', islandGroup: 'LUZON' },
  { key: 'MAKATI', label: 'Makati', slug: 'makati', lat: 14.5547, lng: 121.0244, adminRegion: 'NCR', islandGroup: 'LUZON' },
  { key: 'PASIG', label: 'Pasig', slug: 'pasig', lat: 14.5764, lng: 121.0851, adminRegion: 'NCR', islandGroup: 'LUZON' },
  { key: 'TAGUIG', label: 'Taguig', slug: 'taguig', lat: 14.5176, lng: 121.0509, adminRegion: 'NCR', islandGroup: 'LUZON' },
  { key: 'MANDALUYONG', label: 'Mandaluyong', slug: 'mandaluyong', lat: 14.5794, lng: 121.0359, adminRegion: 'NCR', islandGroup: 'LUZON' },
  { key: 'CALOOCAN', label: 'Caloocan', slug: 'caloocan', lat: 14.6488, lng: 120.9839, adminRegion: 'NCR', islandGroup: 'LUZON' },
  { key: 'PARANAQUE', label: 'Parañaque', slug: 'paranaque', lat: 14.4793, lng: 121.0198, adminRegion: 'NCR', islandGroup: 'LUZON' },
  { key: 'LAS_PINAS', label: 'Las Piñas', slug: 'las-pinas', lat: 14.45, lng: 120.9828, adminRegion: 'NCR', islandGroup: 'LUZON' },
  { key: 'MUNTINLUPA', label: 'Muntinlupa', slug: 'muntinlupa', lat: 14.4081, lng: 121.0415, adminRegion: 'NCR', islandGroup: 'LUZON' },
  { key: 'VALENZUELA', label: 'Valenzuela', slug: 'valenzuela', lat: 14.7, lng: 120.983, adminRegion: 'NCR', islandGroup: 'LUZON' },
  { key: 'MARIKINA', label: 'Marikina', slug: 'marikina', lat: 14.6507, lng: 121.1029, adminRegion: 'NCR', islandGroup: 'LUZON' },
  { key: 'PASAY', label: 'Pasay', slug: 'pasay', lat: 14.5378, lng: 121.0014, adminRegion: 'NCR', islandGroup: 'LUZON' },
  // CAR
  { key: 'BAGUIO', label: 'Baguio', slug: 'baguio', lat: 16.4023, lng: 120.596, adminRegion: 'CAR', islandGroup: 'LUZON' },
  { key: 'LA_TRINIDAD', label: 'La Trinidad', slug: 'la-trinidad', lat: 16.455, lng: 120.5879, adminRegion: 'CAR', islandGroup: 'LUZON' },
  // Ilocos
  { key: 'LAOAG', label: 'Laoag', slug: 'laoag', lat: 18.198, lng: 120.5937, adminRegion: 'ILOCOS', islandGroup: 'LUZON' },
  { key: 'VIGAN', label: 'Vigan', slug: 'vigan', lat: 17.5747, lng: 120.3869, adminRegion: 'ILOCOS', islandGroup: 'LUZON' },
  { key: 'DAGUPAN', label: 'Dagupan', slug: 'dagupan', lat: 16.043, lng: 120.3333, adminRegion: 'ILOCOS', islandGroup: 'LUZON' },
  { key: 'SAN_FERNANDO_LA_UNION', label: 'San Fernando (La Union)', slug: 'san-fernando-la-union', lat: 16.6159, lng: 120.3167, adminRegion: 'ILOCOS', islandGroup: 'LUZON' },
  // Cagayan Valley
  { key: 'TUGUEGARAO', label: 'Tuguegarao', slug: 'tuguegarao', lat: 17.6132, lng: 121.727, adminRegion: 'CAGAYAN_VALLEY', islandGroup: 'LUZON' },
  { key: 'SANTIAGO', label: 'Santiago', slug: 'santiago', lat: 16.6881, lng: 121.5489, adminRegion: 'CAGAYAN_VALLEY', islandGroup: 'LUZON' },
  { key: 'CAUAYAN', label: 'Cauayan', slug: 'cauayan', lat: 16.9333, lng: 121.75, adminRegion: 'CAGAYAN_VALLEY', islandGroup: 'LUZON' },
  // Central Luzon
  { key: 'ANGELES', label: 'Angeles', slug: 'angeles', lat: 15.145, lng: 120.5847, adminRegion: 'CENTRAL_LUZON', islandGroup: 'LUZON' },
  { key: 'OLONGAPO', label: 'Olongapo', slug: 'olongapo', lat: 14.8292, lng: 120.2828, adminRegion: 'CENTRAL_LUZON', islandGroup: 'LUZON' },
  { key: 'SAN_FERNANDO_PAMPANGA', label: 'San Fernando (Pampanga)', slug: 'san-fernando-pampanga', lat: 15.0319, lng: 120.6892, adminRegion: 'CENTRAL_LUZON', islandGroup: 'LUZON' },
  { key: 'CABANATUAN', label: 'Cabanatuan', slug: 'cabanatuan', lat: 15.4869, lng: 120.9675, adminRegion: 'CENTRAL_LUZON', islandGroup: 'LUZON' },
  { key: 'MALOLOS', label: 'Malolos', slug: 'malolos', lat: 14.8436, lng: 120.8114, adminRegion: 'CENTRAL_LUZON', islandGroup: 'LUZON' },
  // CALABARZON
  { key: 'CALAMBA', label: 'Calamba', slug: 'calamba', lat: 14.2117, lng: 121.1652, adminRegion: 'CALABARZON', islandGroup: 'LUZON' },
  { key: 'LUCENA', label: 'Lucena', slug: 'lucena', lat: 13.9314, lng: 121.617, adminRegion: 'CALABARZON', islandGroup: 'LUZON' },
  { key: 'BATANGAS_CITY', label: 'Batangas City', slug: 'batangas-city', lat: 13.7565, lng: 121.0583, adminRegion: 'CALABARZON', islandGroup: 'LUZON' },
  { key: 'LIPA', label: 'Lipa', slug: 'lipa', lat: 13.9411, lng: 121.1631, adminRegion: 'CALABARZON', islandGroup: 'LUZON' },
  { key: 'ANTIPOLO', label: 'Antipolo', slug: 'antipolo', lat: 14.6255, lng: 121.1245, adminRegion: 'CALABARZON', islandGroup: 'LUZON' },
  { key: 'TAGAYTAY', label: 'Tagaytay', slug: 'tagaytay', lat: 14.1153, lng: 120.9621, adminRegion: 'CALABARZON', islandGroup: 'LUZON' },
  // MIMAROPA
  { key: 'PUERTO_PRINCESA', label: 'Puerto Princesa', slug: 'puerto-princesa', lat: 9.7392, lng: 118.7353, adminRegion: 'MIMAROPA', islandGroup: 'LUZON' },
  { key: 'CALAPAN', label: 'Calapan', slug: 'calapan', lat: 13.4124, lng: 121.1769, adminRegion: 'MIMAROPA', islandGroup: 'LUZON' },
  { key: 'ROMBLON', label: 'Romblon', slug: 'romblon', lat: 12.5753, lng: 122.2708, adminRegion: 'MIMAROPA', islandGroup: 'LUZON' },
  // Bicol
  { key: 'LEGAZPI', label: 'Legazpi', slug: 'legazpi', lat: 13.1391, lng: 123.7438, adminRegion: 'BICOL', islandGroup: 'LUZON' },
  { key: 'NAGA', label: 'Naga', slug: 'naga', lat: 13.6218, lng: 123.1948, adminRegion: 'BICOL', islandGroup: 'LUZON' },
  { key: 'SORSOGON', label: 'Sorsogon City', slug: 'sorsogon', lat: 12.9707, lng: 124.0065, adminRegion: 'BICOL', islandGroup: 'LUZON' },
  { key: 'IRIGA', label: 'Iriga', slug: 'iriga', lat: 13.432, lng: 123.4113, adminRegion: 'BICOL', islandGroup: 'LUZON' },
  // Western Visayas
  { key: 'ILOILO_CITY', label: 'Iloilo City', slug: 'iloilo-city', lat: 10.7202, lng: 122.5621, adminRegion: 'WESTERN_VISAYAS', islandGroup: 'VISAYAS' },
  { key: 'BACOLOD', label: 'Bacolod', slug: 'bacolod', lat: 10.6766, lng: 122.9509, adminRegion: 'WESTERN_VISAYAS', islandGroup: 'VISAYAS' },
  { key: 'ROXAS_CITY', label: 'Roxas City', slug: 'roxas-city', lat: 11.5853, lng: 122.7511, adminRegion: 'WESTERN_VISAYAS', islandGroup: 'VISAYAS' },
  { key: 'KALIBO', label: 'Kalibo', slug: 'kalibo', lat: 11.706, lng: 122.3644, adminRegion: 'WESTERN_VISAYAS', islandGroup: 'VISAYAS' },
  // Central Visayas
  { key: 'CEBU_CITY', label: 'Cebu City', slug: 'cebu-city', lat: 10.3157, lng: 123.8854, adminRegion: 'CENTRAL_VISAYAS', islandGroup: 'VISAYAS' },
  { key: 'LAPU_LAPU', label: 'Lapu-Lapu', slug: 'lapu-lapu', lat: 10.3103, lng: 123.9494, adminRegion: 'CENTRAL_VISAYAS', islandGroup: 'VISAYAS' },
  { key: 'MANDAUE', label: 'Mandaue', slug: 'mandaue', lat: 10.3234, lng: 123.9223, adminRegion: 'CENTRAL_VISAYAS', islandGroup: 'VISAYAS' },
  { key: 'TAGBILARAN', label: 'Tagbilaran', slug: 'tagbilaran', lat: 9.6729, lng: 123.873, adminRegion: 'CENTRAL_VISAYAS', islandGroup: 'VISAYAS' },
  { key: 'DUMAGUETE', label: 'Dumaguete', slug: 'dumaguete', lat: 9.3068, lng: 123.3054, adminRegion: 'CENTRAL_VISAYAS', islandGroup: 'VISAYAS' },
  // Eastern Visayas
  { key: 'TACLOBAN', label: 'Tacloban', slug: 'tacloban', lat: 11.2514, lng: 125.0, adminRegion: 'EASTERN_VISAYAS', islandGroup: 'VISAYAS' },
  { key: 'ORMOC', label: 'Ormoc', slug: 'ormoc', lat: 11.0067, lng: 124.6075, adminRegion: 'EASTERN_VISAYAS', islandGroup: 'VISAYAS' },
  { key: 'CALBAYOG', label: 'Calbayog', slug: 'calbayog', lat: 12.0672, lng: 124.595, adminRegion: 'EASTERN_VISAYAS', islandGroup: 'VISAYAS' },
  { key: 'CATBALOGAN', label: 'Catbalogan', slug: 'catbalogan', lat: 11.7753, lng: 124.8861, adminRegion: 'EASTERN_VISAYAS', islandGroup: 'VISAYAS' },
  // Zamboanga Peninsula
  { key: 'ZAMBOANGA_CITY', label: 'Zamboanga City', slug: 'zamboanga-city', lat: 6.9214, lng: 122.079, adminRegion: 'ZAMBOANGA_PENINSULA', islandGroup: 'MINDANAO' },
  { key: 'PAGADIAN', label: 'Pagadian', slug: 'pagadian', lat: 7.8257, lng: 123.437, adminRegion: 'ZAMBOANGA_PENINSULA', islandGroup: 'MINDANAO' },
  { key: 'DIPOLOG', label: 'Dipolog', slug: 'dipolog', lat: 8.5889, lng: 123.34, adminRegion: 'ZAMBOANGA_PENINSULA', islandGroup: 'MINDANAO' },
  // Northern Mindanao
  { key: 'CAGAYAN_DE_ORO', label: 'Cagayan de Oro', slug: 'cagayan-de-oro', lat: 8.4542, lng: 124.6319, adminRegion: 'NORTHERN_MINDANAO', islandGroup: 'MINDANAO' },
  { key: 'ILIGAN_CITY', label: 'Iligan City', slug: 'iligan-city', lat: 8.228, lng: 124.2452, adminRegion: 'NORTHERN_MINDANAO', islandGroup: 'MINDANAO' },
  { key: 'MALAYBALAY', label: 'Malaybalay', slug: 'malaybalay', lat: 8.1575, lng: 125.1278, adminRegion: 'NORTHERN_MINDANAO', islandGroup: 'MINDANAO' },
  { key: 'VALENCIA_CITY', label: 'Valencia City', slug: 'valencia-city', lat: 7.9064, lng: 125.0942, adminRegion: 'NORTHERN_MINDANAO', islandGroup: 'MINDANAO' },
  { key: 'OZAMIZ', label: 'Ozamiz', slug: 'ozamiz', lat: 8.1456, lng: 123.8444, adminRegion: 'NORTHERN_MINDANAO', islandGroup: 'MINDANAO' },
  { key: 'OROQUIETA', label: 'Oroquieta', slug: 'oroquieta', lat: 8.4858, lng: 123.8047, adminRegion: 'NORTHERN_MINDANAO', islandGroup: 'MINDANAO' },
  // Davao Region
  { key: 'DAVAO_CITY', label: 'Davao City', slug: 'davao-city', lat: 7.0731, lng: 125.6128, adminRegion: 'DAVAO', islandGroup: 'MINDANAO' },
  { key: 'SAMAL_CITY', label: 'Samal City', slug: 'samal-city', lat: 7.075, lng: 125.7083, adminRegion: 'DAVAO', islandGroup: 'MINDANAO' },
  { key: 'PANABO_CITY', label: 'Panabo City', slug: 'panabo-city', lat: 7.3083, lng: 125.6833, adminRegion: 'DAVAO', islandGroup: 'MINDANAO' },
  { key: 'SANTO_TOMAS', label: 'Santo Tomas', slug: 'santo-tomas', lat: 7.0833, lng: 125.5167, adminRegion: 'DAVAO', islandGroup: 'MINDANAO' },
  { key: 'TAGUM_CITY', label: 'Tagum City', slug: 'tagum-city', lat: 7.4478, lng: 125.8078, adminRegion: 'DAVAO', islandGroup: 'MINDANAO' },
  { key: 'NABUNTURAN', label: 'Nabunturan', slug: 'nabunturan', lat: 7.6083, lng: 125.9667, adminRegion: 'DAVAO', islandGroup: 'MINDANAO' },
  { key: 'DIGOS_CITY', label: 'Digos City', slug: 'digos-city', lat: 6.7497, lng: 125.357, adminRegion: 'DAVAO', islandGroup: 'MINDANAO' },
  { key: 'MATI_CITY', label: 'Mati City', slug: 'mati-city', lat: 6.9528, lng: 126.2167, adminRegion: 'DAVAO', islandGroup: 'MINDANAO' },
  { key: 'MALITA', label: 'Malita', slug: 'malita', lat: 6.4, lng: 125.6167, adminRegion: 'DAVAO', islandGroup: 'MINDANAO' },
  // SOCCSKSARGEN
  { key: 'GENERAL_SANTOS', label: 'General Santos', slug: 'general-santos', lat: 6.1164, lng: 125.1716, adminRegion: 'SOCCSKSARGEN', islandGroup: 'MINDANAO' },
  { key: 'KORONADAL', label: 'Koronadal', slug: 'koronadal', lat: 6.5032, lng: 124.8469, adminRegion: 'SOCCSKSARGEN', islandGroup: 'MINDANAO' },
  { key: 'KIDAPAWAN', label: 'Kidapawan', slug: 'kidapawan', lat: 7.0084, lng: 125.0928, adminRegion: 'SOCCSKSARGEN', islandGroup: 'MINDANAO' },
  { key: 'TACURONG', label: 'Tacurong', slug: 'tacurong', lat: 6.6925, lng: 124.6764, adminRegion: 'SOCCSKSARGEN', islandGroup: 'MINDANAO' },
  // Caraga
  { key: 'BUTUAN', label: 'Butuan', slug: 'butuan', lat: 8.9475, lng: 125.5406, adminRegion: 'CARAGA', islandGroup: 'MINDANAO' },
  { key: 'SURIGAO_CITY', label: 'Surigao City', slug: 'surigao-city', lat: 9.7853, lng: 125.4888, adminRegion: 'CARAGA', islandGroup: 'MINDANAO' },
  { key: 'BISLIG', label: 'Bislig', slug: 'bislig', lat: 8.2152, lng: 126.3164, adminRegion: 'CARAGA', islandGroup: 'MINDANAO' },
  // BARMM
  { key: 'COTABATO_CITY', label: 'Cotabato City', slug: 'cotabato-city', lat: 7.2042, lng: 124.2472, adminRegion: 'BARMM', islandGroup: 'MINDANAO' },
  { key: 'MARAWI', label: 'Marawi', slug: 'marawi', lat: 7.9986, lng: 124.2928, adminRegion: 'BARMM', islandGroup: 'MINDANAO' },
];

export interface RegionWideDefinition {
  key: string;
  label: string;
  slug: string;
  lat: number;
  lng: number;
  kind: 'country' | 'island' | 'admin';
  adminRegion?: AdminRegionId;
  islandGroup?: IslandGroupId;
}

export const REGION_WIDE_DEFINITIONS: RegionWideDefinition[] = [
  { key: 'ENTIRE_PHILIPPINES', label: 'Entire Philippines', slug: 'philippines', lat: 12.8797, lng: 121.774, kind: 'country' },
  { key: 'ENTIRE_LUZON', label: 'Entire Luzon', slug: 'luzon', lat: 16.5, lng: 121.0, kind: 'island', islandGroup: 'LUZON' },
  { key: 'ENTIRE_VISAYAS', label: 'Entire Visayas', slug: 'visayas', lat: 10.5, lng: 123.5, kind: 'island', islandGroup: 'VISAYAS' },
  { key: 'ENTIRE_MINDANAO', label: 'Entire Mindanao', slug: 'mindanao', lat: 7.9064, lng: 125.0942, kind: 'island', islandGroup: 'MINDANAO' },
  { key: 'ENTIRE_NCR', label: 'Metro Manila (NCR)', slug: 'ncr', lat: 14.5995, lng: 120.9842, kind: 'admin', adminRegion: 'NCR' },
  { key: 'ENTIRE_CAR', label: 'Cordillera (CAR)', slug: 'cordillera', lat: 16.65, lng: 120.9, kind: 'admin', adminRegion: 'CAR' },
  { key: 'ENTIRE_ILOCOS', label: 'Ilocos Region', slug: 'ilocos', lat: 16.5, lng: 120.4, kind: 'admin', adminRegion: 'ILOCOS' },
  { key: 'ENTIRE_CAGAYAN_VALLEY', label: 'Cagayan Valley', slug: 'cagayan-valley', lat: 17.2, lng: 121.7, kind: 'admin', adminRegion: 'CAGAYAN_VALLEY' },
  { key: 'ENTIRE_CENTRAL_LUZON', label: 'Central Luzon', slug: 'central-luzon', lat: 15.2, lng: 120.7, kind: 'admin', adminRegion: 'CENTRAL_LUZON' },
  { key: 'ENTIRE_CALABARZON', label: 'CALABARZON', slug: 'calabarzon', lat: 14.1, lng: 121.2, kind: 'admin', adminRegion: 'CALABARZON' },
  { key: 'ENTIRE_MIMAROPA', label: 'MIMAROPA', slug: 'mimaropa', lat: 12.5, lng: 121.5, kind: 'admin', adminRegion: 'MIMAROPA' },
  { key: 'ENTIRE_BICOL', label: 'Bicol Region', slug: 'bicol', lat: 13.4, lng: 123.4, kind: 'admin', adminRegion: 'BICOL' },
  { key: 'ENTIRE_WESTERN_VISAYAS', label: 'Western Visayas', slug: 'western-visayas', lat: 10.7, lng: 122.5, kind: 'admin', adminRegion: 'WESTERN_VISAYAS' },
  { key: 'ENTIRE_CENTRAL_VISAYAS', label: 'Central Visayas', slug: 'central-visayas', lat: 10.3, lng: 123.8, kind: 'admin', adminRegion: 'CENTRAL_VISAYAS' },
  { key: 'ENTIRE_EASTERN_VISAYAS', label: 'Eastern Visayas', slug: 'eastern-visayas', lat: 11.2, lng: 124.8, kind: 'admin', adminRegion: 'EASTERN_VISAYAS' },
  { key: 'ENTIRE_ZAMBOANGA_PENINSULA', label: 'Zamboanga Peninsula', slug: 'zamboanga-peninsula', lat: 7.8, lng: 122.5, kind: 'admin', adminRegion: 'ZAMBOANGA_PENINSULA' },
  { key: 'ENTIRE_NORTHERN_MINDANAO', label: 'Northern Mindanao', slug: 'northern-mindanao', lat: 8.2, lng: 124.6, kind: 'admin', adminRegion: 'NORTHERN_MINDANAO' },
  { key: 'ENTIRE_DAVAO_REGION', label: 'Davao Region', slug: 'davao-region', lat: 7.0731, lng: 125.6128, kind: 'admin', adminRegion: 'DAVAO' },
  { key: 'ENTIRE_SOCCSKSARGEN', label: 'SOCCSKSARGEN', slug: 'soccsksargen', lat: 6.5, lng: 125.0, kind: 'admin', adminRegion: 'SOCCSKSARGEN' },
  { key: 'ENTIRE_CARAGA', label: 'Caraga', slug: 'caraga', lat: 9.0, lng: 125.5, kind: 'admin', adminRegion: 'CARAGA' },
  { key: 'ENTIRE_BARMM', label: 'BARMM', slug: 'barmm', lat: 7.2, lng: 124.3, kind: 'admin', adminRegion: 'BARMM' },
];

export const ADMIN_REGION_LABELS: Record<AdminRegionId, string> = {
  NCR: 'Metro Manila (NCR)',
  CAR: 'Cordillera (CAR)',
  ILOCOS: 'Ilocos Region',
  CAGAYAN_VALLEY: 'Cagayan Valley',
  CENTRAL_LUZON: 'Central Luzon',
  CALABARZON: 'CALABARZON',
  MIMAROPA: 'MIMAROPA',
  BICOL: 'Bicol Region',
  WESTERN_VISAYAS: 'Western Visayas',
  CENTRAL_VISAYAS: 'Central Visayas',
  EASTERN_VISAYAS: 'Eastern Visayas',
  ZAMBOANGA_PENINSULA: 'Zamboanga Peninsula',
  NORTHERN_MINDANAO: 'Northern Mindanao',
  DAVAO: 'Davao Region',
  SOCCSKSARGEN: 'SOCCSKSARGEN',
  CARAGA: 'Caraga',
  BARMM: 'BARMM',
};

export const ISLAND_GROUP_LABELS: Record<IslandGroupId, string> = {
  LUZON: 'Luzon',
  VISAYAS: 'Visayas',
  MINDANAO: 'Mindanao',
};