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use super::nonce::Nonce;
use crate::identifiers::cred_def::CredentialDefinitionId;
use crate::identifiers::schema::SchemaId;
use crate::{Qualifiable, Validatable, ValidationError};

#[derive(Debug)]
#[cfg_attr(feature = "serde", derive(Deserialize, Serialize))]
pub struct CredentialOffer {
    pub schema_id: SchemaId,
    pub cred_def_id: CredentialDefinitionId,
    pub key_correctness_proof: cl_type!(CredentialKeyCorrectnessProof),
    pub nonce: Nonce,
    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
    pub method_name: Option<String>,
}

impl CredentialOffer {
    #[allow(unused)]
    pub fn to_unqualified(self) -> CredentialOffer {
        let method_name = self.cred_def_id.get_method().map(str::to_owned);
        CredentialOffer {
            schema_id: self.schema_id.to_unqualified(),
            cred_def_id: self.cred_def_id.to_unqualified(),
            key_correctness_proof: self.key_correctness_proof,
            nonce: self.nonce,
            method_name,
        }
    }
}

impl Validatable for CredentialOffer {
    fn validate(&self) -> Result<(), ValidationError> {
        self.schema_id.validate()?;
        self.cred_def_id.validate()?;
        Ok(())
    }
}