Add ceators valid fn (#37)

programs/cardinal-creator-standard/src/state.rs

@@ -1,6 +1,7 @@
 use borsh::BorshDeserialize;
 use borsh::BorshSerialize;
 use mpl_token_metadata::pda::find_metadata_account;
+use mpl_token_metadata::state::Creator;
 use mpl_token_metadata::state::Metadata;
 use mpl_token_metadata::state::TokenMetadataAccount;
 use shank::ShankAccount;
@@ -346,6 +347,23 @@ pub fn check_allowlist_disallowlist<'info>(
  Ok(true)
 }
 
+pub fn is_creators_valid(creators: &Vec<Creator>) -> Result<bool, ProgramError> {
+ let mut allowed = false;
+ for creator in creators {
+ if creator.address.to_string() == DEFAULT_REQUIRED_CREATOR
+ && creator.share >= DEFAULT_MINIMUM_CREATOR_SHARE
+ {
+ allowed = true;
+ }
+ }
+ if !allowed {
+ return Err(ProgramError::from(
+ ErrorCode::InusufficientMinimumCreatorShare,
+ ));
+ }
+ Ok(true)
+}
+
 pub fn check_creators<'info>(
  mint: &Pubkey,
  _ruleset: &Ruleset,
@@ -360,19 +378,7 @@ pub fn check_creators<'info>(
  if !mint_metadata_account_info.data_is_empty() {
  let mint_metadata = Metadata::from_account_info(mint_metadata_account_info)?;
  if let Some(creators) = mint_metadata.data.creators {
- let mut allowed = false;
- for creator in creators {
- if creator.address.to_string() == DEFAULT_REQUIRED_CREATOR
- && creator.share >= DEFAULT_MINIMUM_CREATOR_SHARE
- {
- allowed = true;
- }
- }
- if !allowed {
- return Err(ProgramError::from(
- ErrorCode::InusufficientMinimumCreatorShare,
- ));
- }
+ return is_creators_valid(&creators);
  }
  }
  Ok(true)