const required = (value: string | undefined, fallback: string) =>
  (value ?? fallback).replace(/\/$/, "");

export const env = Object.freeze({
  apiBaseUrl: required(process.env.EXPO_PUBLIC_API_BASE_URL, "http://localhost:8000"),
  authBaseUrl: required(
    process.env.EXPO_PUBLIC_AUTH_BASE_URL,
    "http://localhost:8080/auth",
  ),
  realm: process.env.EXPO_PUBLIC_KEYCLOAK_REALM ?? "han-chat",
  clientId: process.env.EXPO_PUBLIC_KEYCLOAK_CLIENT_ID ?? "han-chat-frontend",
  appEnv: process.env.EXPO_PUBLIC_APP_ENV ?? "development",
});

export const oidcIssuer = `${env.authBaseUrl}/realms/${encodeURIComponent(env.realm)}`;
export const isProduction = env.appEnv === "production";