# This is an automatically generated file.
# DO NOT EDIT or your changes may be overwritten
from __future__ import annotations
import base64
import json
from typing import Optional
from xdrlib3 import Packer, Unpacker
from .base import DEFAULT_XDR_MAX_DEPTH
from .contract_event_body import ContractEventBody
from .contract_event_type import ContractEventType
from .contract_id import ContractID
from .extension_point import ExtensionPoint
__all__ = ["ContractEvent"]
[docs]
class ContractEvent:
"""
XDR Source Code::
struct ContractEvent
{
// We can use this to add more fields, or because it
// is first, to change ContractEvent into a union.
ExtensionPoint ext;
ContractID* contractID;
ContractEventType type;
union switch (int v)
{
case 0:
struct
{
SCVal topics<>;
SCVal data;
} v0;
}
body;
};
"""
def __init__(
self,
ext: ExtensionPoint,
contract_id: Optional[ContractID],
type: ContractEventType,
body: ContractEventBody,
) -> None:
self.ext = ext
self.contract_id = contract_id
self.type = type
self.body = body
def pack(self, packer: Packer) -> None:
self.ext.pack(packer)
if self.contract_id is None:
packer.pack_uint(0)
else:
packer.pack_uint(1)
self.contract_id.pack(packer)
self.type.pack(packer)
self.body.pack(packer)
@classmethod
def unpack(
cls, unpacker: Unpacker, depth_limit: int = DEFAULT_XDR_MAX_DEPTH
) -> ContractEvent:
if depth_limit <= 0:
raise ValueError("Maximum decoding depth reached")
ext = ExtensionPoint.unpack(unpacker, depth_limit - 1)
contract_id = (
ContractID.unpack(unpacker, depth_limit - 1)
if unpacker.unpack_uint()
else None
)
type = ContractEventType.unpack(unpacker)
body = ContractEventBody.unpack(unpacker, depth_limit - 1)
return cls(
ext=ext,
contract_id=contract_id,
type=type,
body=body,
)
def to_xdr_bytes(self) -> bytes:
packer = Packer()
self.pack(packer)
return packer.get_buffer()
@classmethod
def from_xdr_bytes(cls, xdr: bytes) -> ContractEvent:
unpacker = Unpacker(xdr)
result = cls.unpack(unpacker)
remaining = len(xdr) - unpacker.get_position()
if remaining != 0:
raise ValueError(f"Unexpected trailing {remaining} bytes in XDR data")
return result
def to_xdr(self) -> str:
xdr_bytes = self.to_xdr_bytes()
return base64.b64encode(xdr_bytes).decode()
@classmethod
def from_xdr(cls, xdr: str) -> ContractEvent:
xdr_bytes = base64.b64decode(xdr.encode())
return cls.from_xdr_bytes(xdr_bytes)
def to_json(self) -> str:
return json.dumps(self.to_json_dict())
@classmethod
def from_json(cls, json_str: str) -> ContractEvent:
return cls.from_json_dict(json.loads(json_str))
def to_json_dict(self) -> dict:
return {
"ext": self.ext.to_json_dict(),
"contract_id": (
self.contract_id.to_json_dict()
if self.contract_id is not None
else None
),
"type": self.type.to_json_dict(),
"body": self.body.to_json_dict(),
}
@classmethod
def from_json_dict(cls, json_dict: dict) -> ContractEvent:
ext = ExtensionPoint.from_json_dict(json_dict["ext"])
contract_id = (
ContractID.from_json_dict(json_dict["contract_id"])
if json_dict["contract_id"] is not None
else None
)
type = ContractEventType.from_json_dict(json_dict["type"])
body = ContractEventBody.from_json_dict(json_dict["body"])
return cls(
ext=ext,
contract_id=contract_id,
type=type,
body=body,
)
def __hash__(self):
return hash(
(
self.ext,
self.contract_id,
self.type,
self.body,
)
)
def __eq__(self, other: object):
if not isinstance(other, self.__class__):
return NotImplemented
return (
self.ext == other.ext
and self.contract_id == other.contract_id
and self.type == other.type
and self.body == other.body
)
def __repr__(self):
out = [
f"ext={self.ext}",
f"contract_id={self.contract_id}",
f"type={self.type}",
f"body={self.body}",
]
return f"<ContractEvent [{', '.join(out)}]>"