export const ENV = { WS_URL: process.env.NEXT_PUBLIC_WS_URL || "ws://localhost:3001", API_URL: process.env.NEXT_PUBLIC_API_URL || "http://localhost:3001/api", } as const; export type ENV = typeof ENV; // Type guard function export function assertEnvVariables(ENV: ENV): asserts ENV is Required { const missingVariables = Object.entries(ENV).filter(([_, value]) => value === undefined); if (missingVariables.length > 0) { console.warn(`Warning: Missing environment variables: ${missingVariables.map(([key]) => key).join(", ")}`); console.warn("Using default values for missing variables."); } } assertEnvVariables(ENV); export const VALIDATED_ENV: Required = ENV as Required;