feat: add get types from offer function to get the types from multipl…

…e versions of credential offers

packages/common/lib/functions/IssuerMetadataUtils.ts

@@ -3,6 +3,7 @@ import {
  CredentialOfferFormat,
  CredentialOfferPayload,
  JsonLdIssuerCredentialDefinition,
+ UniformCredentialOfferPayload,
  UniformCredentialOfferRequest,
  VCI_LOG_COMMON,
 } from '../index';
@@ -243,14 +244,7 @@ export function getIssuerName(
  * @param subject
  */
 export function getTypesFromObject(
- subject:
- | CredentialConfigurationSupported
- | CredentialOfferFormat
- | CredentialOfferPayload
- | CredentialDefinitionV1_0_13
- | JsonLdIssuerCredentialDefinition
- | UniformCredentialOfferRequest
- | string,
+ subject: CredentialConfigurationSupported | CredentialOfferFormat | CredentialDefinitionV1_0_13 | JsonLdIssuerCredentialDefinition | string,
 ): string[] | undefined {
  if (subject === undefined) {
  return undefined;
@@ -264,12 +258,27 @@ export function getTypesFromObject(
  return Array.isArray(subject.type) ? subject.type : [subject.type];
  } else if ('vct' in subject && subject.vct) {
  return [subject.vct];
- } else if ('credentials' in subject && subject.credentials) {
- return getTypesFromObject(subject.credentials);
- } else if ('credential_offer' in subject && subject.credential_offer) {
- return getTypesFromObject(subject.credential_offer);
  }
-
  VCI_LOG_COMMON.warning('Could not deduce credential types. Probably a failure down the line will happen!');
  return undefined;
 }
+
+export function getTypesFromCredentialOffer(
+ offer: UniformCredentialOfferRequest | CredentialOfferPayload | UniformCredentialOfferPayload,
+): Array<Array<string>> | undefined {
+ if ('credentials' in offer && Array.isArray(offer.credentials)) {
+ return offer.credentials.map((cred) => getTypesFromObject(cred)).filter((cred): cred is string[] => cred !== undefined);
+ } else if ('credential_configuration_ids' in offer && Array.isArray(offer.credential_configuration_ids)) {
+ return offer.credential_configuration_ids.map((id) => [id]);
+ } else if ('credential_offer' in offer && offer.credential_offer) {
+ return getTypesFromCredentialOffer(offer.credential_offer);
+ } else if ('credential_type' in offer && offer.credential_type) {
+ if (typeof offer.credential_type === 'string') {
+ return [[offer.credential_type]];
+ } else if (Array.isArray(offer.credential_type)) {
+ return [offer.credential_type];
+ }
+ }
+ VCI_LOG_COMMON.warning('Could not deduce credential types from offer. Probably a failure down the line will happen!');
+ return undefined;
+}