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because webpack will see it's a runtime variable and skip it\n switch (moduleName) {\n case 'fs':\n return import(/* webpackIgnore: true */ 'fs');\n case 'path':\n return import(/* webpackIgnore: true */ 'path');\n case 'url':\n return import(/* webpackIgnore: true */ 'url');\n default:\n throw new Error(`Unsupported module: ${moduleName}`);\n }\n}\n\n// Helper function to load JSON data\nasync function loadJSON(path: string): Promise {\n try {\n // Try dynamic import first (works in ESM and bundlers)\n // @vite-ignore - Prevents Vite from analyzing this import\n const module = await import(/* @vite-ignore */ path, { assert: { type: 'json' } } as any);\n return module.default;\n } catch (error) {\n // Fallback to fs for CommonJS/Node environments only\n if (!isNodeEnvironment()) {\n const browserError = new Error(\n `@countrystatecity/countries cannot load data in browser environments. ` +\n `This package is designed for server-side use only. ` +\n `Please use one of these approaches:\\n` +\n `1. Create an API endpoint that calls this package on the server\\n` +\n `2. Generate static JSON at build time\\n` +\n `3. Use in SSR/SSG context only (e.g., SvelteKit load functions, Next.js server components)\\n` +\n `See documentation at: https://github.com/dr5hn/countrystatecity/tree/main/packages/countries#readme`\n );\n throw browserError;\n }\n \n try {\n const fs = await importNodeModule('fs');\n const pathModule = await importNodeModule('path');\n const { fileURLToPath } = await importNodeModule('url');\n \n // Resolve path relative to this file\n let basePath: string;\n if (typeof __dirname !== 'undefined') {\n basePath = __dirname;\n } else {\n basePath = pathModule.dirname(fileURLToPath(import.meta.url));\n }\n \n // Try multiple path resolution strategies for different environments\n const possiblePaths = [\n pathModule.join(basePath, path),\n pathModule.join(basePath, '..', path), // In case dist structure is different\n pathModule.join(process.cwd(), 'node_modules', '@countrystatecity', 'countries', 'dist', path), // Vercel/serverless\n ];\n \n let data: string | null = null;\n let lastError: any = null;\n \n for (const fullPath of possiblePaths) {\n try {\n data = fs.readFileSync(fullPath, 'utf-8');\n break;\n } catch (readError) {\n lastError = readError;\n continue;\n }\n }\n \n if (data === null) {\n // If all paths failed, throw the last error with helpful message\n const err: any = new Error(`Failed to load JSON file: ${path}. Tried paths: ${possiblePaths.join(', ')}`);\n err.code = 'MODULE_NOT_FOUND';\n err.originalError = lastError;\n throw err;\n }\n \n return JSON.parse(data);\n } catch (fsError) {\n throw error; // Throw original error if fs also fails\n }\n }\n}\n\n// Helper to get country directory name from ISO2 code\nasync function getCountryDirName(countryCode: string): Promise {\n // Initialize map if not already done\n if (!countryDirMap) {\n if (!isNodeEnvironment()) {\n throw new Error('Directory scanning is only available in Node.js environment');\n }\n \n const fs = await importNodeModule('fs');\n const pathModule = await importNodeModule('path');\n \n let basePath: string;\n if (typeof __dirname !== 'undefined') {\n basePath = __dirname;\n } else {\n const { fileURLToPath } = await importNodeModule('url');\n basePath = pathModule.dirname(fileURLToPath(import.meta.url));\n }\n \n const dataDir = pathModule.join(basePath, 'data');\n const dirs = fs.readdirSync(dataDir, { withFileTypes: true })\n .filter((d: any) => d.isDirectory())\n .map((d: any) => d.name);\n \n countryDirMap = new Map();\n for (const dir of dirs) {\n // Extract ISO2 code from directory name (format: CountryName-ISO2)\n const parts = dir.split('-');\n const iso2 = parts[parts.length - 1];\n countryDirMap.set(iso2, dir);\n }\n }\n \n return countryDirMap.get(countryCode) || null;\n}\n\n// Helper to get state directory name from state code\nasync function getStateDirName(countryCode: string, stateCode: string): Promise {\n const countryDir = await getCountryDirName(countryCode);\n if (!countryDir) return null;\n \n // Check if we have cached state map for this country\n if (!stateDirMaps.has(countryCode)) {\n if (!isNodeEnvironment()) {\n throw new Error('Directory scanning is only available in Node.js environment');\n }\n \n const fs = await importNodeModule('fs');\n const pathModule = await importNodeModule('path');\n \n let basePath: string;\n if (typeof __dirname !== 'undefined') {\n basePath = __dirname;\n } else {\n const { fileURLToPath } = await importNodeModule('url');\n basePath = pathModule.dirname(fileURLToPath(import.meta.url));\n }\n \n const countryPath = pathModule.join(basePath, 'data', countryDir);\n const dirs = fs.readdirSync(countryPath, { withFileTypes: true })\n .filter((d: any) => d.isDirectory())\n .map((d: any) => d.name);\n \n const stateMap = new Map();\n for (const dir of dirs) {\n // Extract state code from directory name (format: StateName-CODE)\n const parts = dir.split('-');\n const code = parts[parts.length - 1];\n stateMap.set(code, dir);\n }\n stateDirMaps.set(countryCode, stateMap);\n }\n \n return stateDirMaps.get(countryCode)?.get(stateCode) || null;\n}\n\n/**\n * Get lightweight list of all countries\n * @returns Promise with array of countries (basic info only)\n * @bundle ~5KB - Loads countries.json\n */\nexport async function getCountries(): Promise {\n return loadJSON('./data/countries.json');\n}\n\n/**\n * Get full country metadata including timezones and translations\n * @param countryCode - ISO2 country code (e.g., 'US', 'IN')\n * @returns Promise with full country metadata or null if not found\n * @bundle ~5KB per country - Loads {Country-CODE}/meta.json\n */\nexport async function getCountryByCode(countryCode: string): Promise {\n try {\n const countryDir = await getCountryDirName(countryCode);\n if (!countryDir) return null;\n return await loadJSON(`./data/${countryDir}/meta.json`);\n } catch (error) {\n if (error instanceof Error && (error.message.includes('browser') || error.message.includes('Node.js environment'))) {\n console.warn(`@countrystatecity/countries: ${error.message}`);\n }\n // Country not found or file doesn't exist\n return null;\n }\n}\n\n/**\n * Get all states/provinces for a specific country\n * @param countryCode - ISO2 country code\n * @returns Promise with array of states or empty array if not found\n * @bundle ~10-100KB depending on country - Loads {Country-CODE}/states.json\n */\nexport async function getStatesOfCountry(countryCode: string): Promise {\n try {\n const countryDir = await getCountryDirName(countryCode);\n if (!countryDir) return [];\n return await loadJSON(`./data/${countryDir}/states.json`);\n } catch (error) {\n if (error instanceof Error && (error.message.includes('browser') || error.message.includes('Node.js environment'))) {\n console.warn(`@countrystatecity/countries: ${error.message}`);\n }\n // Country not found or has no states\n return [];\n }\n}\n\n/**\n * Get specific state by code\n * @param countryCode - ISO2 country code\n * @param stateCode - State code (e.g., 'CA', 'TX')\n * @returns Promise with state object or null if not found\n * @bundle Same as getStatesOfCountry - filters in memory\n */\nexport async function getStateByCode(\n countryCode: string,\n stateCode: string\n): Promise {\n const states = await getStatesOfCountry(countryCode);\n const state = states.find((s) => s.iso2 === stateCode);\n return state || null;\n}\n\n/**\n * Get all cities in a specific state\n * @param countryCode - ISO2 country code\n * @param stateCode - State code\n * @returns Promise with array of cities or empty array if not found\n * @bundle ~5-200KB depending on state - Loads {Country-CODE}/{State-CODE}/cities.json\n */\nexport async function getCitiesOfState(\n countryCode: string,\n stateCode: string\n): Promise {\n try {\n const countryDir = await getCountryDirName(countryCode);\n if (!countryDir) return [];\n \n const stateDir = await getStateDirName(countryCode, stateCode);\n if (!stateDir) return [];\n \n return await loadJSON(`./data/${countryDir}/${stateDir}/cities.json`);\n } catch (error) {\n if (error instanceof Error && (error.message.includes('browser') || error.message.includes('Node.js environment'))) {\n console.warn(`@countrystatecity/countries: ${error.message}`);\n }\n // State not found or has no cities\n return [];\n }\n}\n\n/**\n * Get ALL cities in an entire country\n * WARNING: Large data size - loads all state city files for the country\n * @param countryCode - ISO2 country code\n * @returns Promise with array of all cities in country\n * @bundle Large - loads multiple city files\n */\nexport async function getAllCitiesOfCountry(countryCode: string): Promise {\n const states = await getStatesOfCountry(countryCode);\n const allCities: ICity[] = [];\n\n // Load cities for each state\n for (const state of states) {\n const cities = await getCitiesOfState(countryCode, state.iso2);\n allCities.push(...cities);\n }\n\n return allCities;\n}\n\n/**\n * Get every city globally\n * WARNING: MASSIVE data (8MB+) - rarely needed, use sparingly\n * @returns Promise with array of all cities worldwide\n * @bundle 8MB+ - loads ALL city files\n */\nexport async function getAllCitiesInWorld(): Promise {\n const countries = await getCountries();\n const allCities: ICity[] = [];\n\n // Load cities for each country\n for (const country of countries) {\n const cities = await getAllCitiesOfCountry(country.iso2);\n allCities.push(...cities);\n }\n\n return allCities;\n}\n\n/**\n * Get specific city by ID\n * @param countryCode - ISO2 country code\n * @param stateCode - State code\n * @param cityId - Database city ID\n * @returns Promise with city object or null if not found\n * @bundle Same as getCitiesOfState - filters in memory\n */\nexport async function getCityById(\n countryCode: string,\n stateCode: string,\n cityId: number\n): Promise {\n const cities = await getCitiesOfState(countryCode, stateCode);\n const city = cities.find((c) => c.id === cityId);\n return city || null;\n}\n","/**\n * Utility functions for @world/countries\n */\n\nimport type { ICity } from './types';\nimport { getCountries, getStatesOfCountry, getCitiesOfState, getCountryByCode } from './loaders';\n\n/**\n * Validate if a country code exists\n * @param countryCode - ISO2 country code\n * @returns Promise with boolean indicating if country exists\n */\nexport async function isValidCountryCode(countryCode: string): Promise {\n const countries = await getCountries();\n return countries.some((c) => c.iso2 === countryCode);\n}\n\n/**\n * Validate if a state code exists in a country\n * @param countryCode - ISO2 country code\n * @param stateCode - State code\n * @returns Promise with boolean indicating if state exists\n */\nexport async function isValidStateCode(\n countryCode: string,\n stateCode: string\n): Promise {\n const states = await getStatesOfCountry(countryCode);\n return states.some((s) => s.iso2 === stateCode);\n}\n\n/**\n * Search cities by name (partial match)\n * Note: This loads cities for the specified state only\n * @param countryCode - ISO2 country code\n * @param stateCode - State code\n * @param searchTerm - Search term (case-insensitive partial match)\n * @returns Promise with array of matching cities\n */\nexport async function searchCitiesByName(\n countryCode: string,\n stateCode: string,\n searchTerm: string\n): Promise {\n const cities = await getCitiesOfState(countryCode, stateCode);\n const lowerSearchTerm = searchTerm.toLowerCase();\n return cities.filter((city) => city.name.toLowerCase().includes(lowerSearchTerm));\n}\n\n/**\n * Get country name from code\n * @param countryCode - ISO2 country code\n * @returns Promise with country name or null if not found\n */\nexport async function getCountryNameByCode(countryCode: string): Promise {\n const countries = await getCountries();\n const country = countries.find((c) => c.iso2 === countryCode);\n return country ? country.name : null;\n}\n\n/**\n * Get state name from code\n * @param countryCode - ISO2 country code\n * @param stateCode - State code\n * @returns Promise with state name or null if not found\n */\nexport async function getStateNameByCode(\n countryCode: string,\n stateCode: string\n): Promise {\n const states = await getStatesOfCountry(countryCode);\n const state = states.find((s) => s.iso2 === stateCode);\n return state ? state.name : null;\n}\n\n/**\n * Get timezone for specific city\n * @param countryCode - ISO2 country code\n * @param stateCode - State code\n * @param cityName - City name\n * @returns Promise with timezone string or null if not found\n */\nexport async function getTimezoneForCity(\n countryCode: string,\n stateCode: string,\n cityName: string\n): Promise {\n const cities = await getCitiesOfState(countryCode, stateCode);\n const city = cities.find((c) => c.name === cityName);\n return city ? city.timezone : null;\n}\n\n/**\n * Get all timezones for country\n * @param countryCode - ISO2 country code\n * @returns Promise with array of timezone names\n */\nexport async function getCountryTimezones(countryCode: string): Promise {\n const countryMeta = await getCountryByCode(countryCode);\n if (!countryMeta || !countryMeta.timezones) {\n return [];\n }\n return countryMeta.timezones.map((tz) => tz.zoneName);\n}\n"]}