"""A credential content message."""
from typing import Sequence
from marshmallow import fields
from .....messaging.agent_message import AgentMessage, AgentMessageSchema
from .....messaging.decorators.attach_decorator import (
AttachDecorator,
AttachDecoratorSchema,
)
from ..message_types import ATTACH_DECO_IDS, CREDENTIAL_ISSUE, PROTOCOL_PACKAGE
HANDLER_CLASS = (
f"{PROTOCOL_PACKAGE}.handlers.credential_issue_handler.CredentialIssueHandler"
)
[docs]class CredentialIssue(AgentMessage):
"""Class representing a credential."""
def __init__(
self,
_id: str = None,
*,
comment: str = None,
credentials_attach: Sequence[AttachDecorator] = None,
**kwargs,
):
"""
Initialize credential issue object.
Args:
comment: optional comment
credentials_attach: credentials attachments
"""
super().__init__(_id=_id, **kwargs)
self.comment = comment
self.credentials_attach = list(credentials_attach) if credentials_attach else []
[docs] def indy_credential(self, index: int = 0):
"""
Retrieve and decode indy credential from attachment.
Args:
index: ordinal in attachment list to decode and return
(typically, list has length 1)
"""
return self.credentials_attach[index].indy_dict
[docs] @classmethod
def wrap_indy_credential(cls, indy_cred: dict) -> AttachDecorator:
"""Convert an indy credential offer to an attachment decorator."""
return AttachDecorator.from_indy_dict(
indy_dict=indy_cred, ident=ATTACH_DECO_IDS[CREDENTIAL_ISSUE]
)
[docs]class CredentialIssueSchema(AgentMessageSchema):
"""Credential schema."""
comment = fields.Str(description="Human-readable comment", required=False)
credentials_attach = fields.Nested(
AttachDecoratorSchema, required=True, many=True, data_key="credentials~attach"
)