import { existsSync } from 'node:fs';
import { resolve } from 'node:path';
import { loadEnvFile } from 'node:process';

for (const directory of [
    process.cwd(),
    resolve(process.cwd(), '..'),
    resolve(process.cwd(), '../..'),
]) {
    const path = resolve(directory, '.env');
    if (existsSync(path)) {
        loadEnvFile(path);
        break;
    }
}

function required(name: string): string {
    const value = process.env[name];
    if (!value) throw new Error(`${name} is required`);
    return value;
}

function objectStorageCredential(
    accessKeyName: string,
    localFallbackName: string,
): string {
    return process.env[accessKeyName] || required(localFallbackName);
}

export const workerConfig = {
    databaseUrl: required('DATABASE_URL'),
    redisUrl: required('REDIS_URL'),
    storeSecretEncryptionKey: required('STORE_SECRET_ENCRYPTION_KEY'),
    objectStorageEndpoint:
        process.env.OBJECT_STORAGE_ENDPOINT ?? 'http://localhost:9000',
    objectStorageForcePathStyle:
        (process.env.OBJECT_STORAGE_FORCE_PATH_STYLE ?? 'true') === 'true',
    objectStorageAccessKey: objectStorageCredential(
        'OBJECT_STORAGE_ACCESS_KEY',
        'MINIO_ROOT_USER',
    ),
    objectStorageSecretKey: objectStorageCredential(
        'OBJECT_STORAGE_SECRET_KEY',
        'MINIO_ROOT_PASSWORD',
    ),
};