export interface IPlatformObjectStorageBindingConfig {
  bucketName?: string;
  region?: string;
  publicRead?: boolean;
  versioning?: boolean;
}

export const platformObjectStorageBucketNameLimits = Object.freeze({
  minimumBytes: 3,
  maximumBytes: 63,
});

/** Mirrors SmartStorage's canonical S3 bucket boundary without normalizing input. */
export const validatePlatformObjectStorageBucketName = (
  bucketNameArg: unknown,
  pathArg = 'objectstorage bucketName',
): string[] => {
  if (typeof bucketNameArg !== 'string') {
    return [`${pathArg} must be a canonical S3 bucket name`];
  }
  const ipv4Parts = bucketNameArg.split('.');
  const isIpv4Address = ipv4Parts.length === 4 && ipv4Parts.every((partArg) => (
    /^[0-9]+$/.test(partArg) && Number(partArg) <= 255
  ));
  if (bucketNameArg.length < platformObjectStorageBucketNameLimits.minimumBytes
    || bucketNameArg.length > platformObjectStorageBucketNameLimits.maximumBytes
    || !/^[a-z0-9][a-z0-9.-]*[a-z0-9]$/.test(bucketNameArg)
    || bucketNameArg.includes('..')
    || isIpv4Address) {
    return [`${pathArg} must be a canonical S3 bucket name`];
  }
  return [];
};