env.ts

const env = Deno.env.toObject();

assertEnvironmentVariable("MATATAKI_API_PREFIX");
assertEnvironmentVariable("MATATAKI_COVER_PREFIX");
assertEnvironmentVariable("DB_HOST");
assertEnvironmentVariable("DB_USER");
assertEnvironmentVariable("DB_PASSWORD");
assertEnvironmentVariable("DB_DATABASE");
assertEnvironmentVariable("NATS_SERVER");

export const MATATAKI_API_PREFIX = env.MATATAKI_API_PREFIX;
export const MATATAKI_COVER_PREFIX = env.MATATAKI_COVER_PREFIX;
export const DB_HOST = env.DB_HOST;
export const DB_USER = env.DB_USER;
export const DB_PASSWORD = env.DB_PASSWORD;
export const DB_DATABASE = env.DB_DATABASE;

export const NATS_SERVER = env.NATS_SERVER;

export const REDIS_HOST = env.REDIS_HOST ?? "127.0.0.1";
export const REDIS_PORT = env.REDIS_PORT ?? 6379;
export const REDIS_PASSWORD = env.REDIS_PASSWORD;

function assertEnvironmentVariable(name: string) {
  if (env[name])
    return;

  console.error(`Missing ${name} environment variable`);
  Deno.exit(1);
}