# 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 .asset import Asset
from .base import DEFAULT_XDR_MAX_DEPTH
from .contract_id_preimage_from_address import ContractIDPreimageFromAddress
from .contract_id_preimage_type import ContractIDPreimageType
__all__ = ["ContractIDPreimage"]
[docs]
class ContractIDPreimage:
"""
XDR Source Code::
union ContractIDPreimage switch (ContractIDPreimageType type)
{
case CONTRACT_ID_PREIMAGE_FROM_ADDRESS:
struct
{
SCAddress address;
uint256 salt;
} fromAddress;
case CONTRACT_ID_PREIMAGE_FROM_ASSET:
Asset fromAsset;
};
"""
def __init__(
self,
type: ContractIDPreimageType,
from_address: Optional[ContractIDPreimageFromAddress] = None,
from_asset: Optional[Asset] = None,
) -> None:
self.type = type
self.from_address = from_address
self.from_asset = from_asset
def pack(self, packer: Packer) -> None:
self.type.pack(packer)
if self.type == ContractIDPreimageType.CONTRACT_ID_PREIMAGE_FROM_ADDRESS:
if self.from_address is None:
raise ValueError("from_address should not be None.")
self.from_address.pack(packer)
return
if self.type == ContractIDPreimageType.CONTRACT_ID_PREIMAGE_FROM_ASSET:
if self.from_asset is None:
raise ValueError("from_asset should not be None.")
self.from_asset.pack(packer)
return
raise ValueError("Invalid type.")
@classmethod
def unpack(
cls, unpacker: Unpacker, depth_limit: int = DEFAULT_XDR_MAX_DEPTH
) -> ContractIDPreimage:
if depth_limit <= 0:
raise ValueError("Maximum decoding depth reached")
type = ContractIDPreimageType.unpack(unpacker)
if type == ContractIDPreimageType.CONTRACT_ID_PREIMAGE_FROM_ADDRESS:
from_address = ContractIDPreimageFromAddress.unpack(
unpacker, depth_limit - 1
)
return cls(type=type, from_address=from_address)
if type == ContractIDPreimageType.CONTRACT_ID_PREIMAGE_FROM_ASSET:
from_asset = Asset.unpack(unpacker, depth_limit - 1)
return cls(type=type, from_asset=from_asset)
raise ValueError("Invalid type.")
def to_xdr_bytes(self) -> bytes:
packer = Packer()
self.pack(packer)
return packer.get_buffer()
@classmethod
def from_xdr_bytes(cls, xdr: bytes) -> ContractIDPreimage:
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) -> ContractIDPreimage:
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) -> ContractIDPreimage:
return cls.from_json_dict(json.loads(json_str))
def to_json_dict(self):
if self.type == ContractIDPreimageType.CONTRACT_ID_PREIMAGE_FROM_ADDRESS:
assert self.from_address is not None
return {"address": self.from_address.to_json_dict()}
if self.type == ContractIDPreimageType.CONTRACT_ID_PREIMAGE_FROM_ASSET:
assert self.from_asset is not None
return {"asset": self.from_asset.to_json_dict()}
raise ValueError(f"Unknown type in ContractIDPreimage: {self.type}")
@classmethod
def from_json_dict(cls, json_value: dict) -> ContractIDPreimage:
if len(json_value) != 1:
raise ValueError(
f"Expected a single-key object for ContractIDPreimage, got: {json_value}"
)
key = next(iter(json_value))
type = ContractIDPreimageType.from_json_dict(key)
if key == "address":
from_address = ContractIDPreimageFromAddress.from_json_dict(
json_value["address"]
)
return cls(type=type, from_address=from_address)
if key == "asset":
from_asset = Asset.from_json_dict(json_value["asset"])
return cls(type=type, from_asset=from_asset)
raise ValueError(f"Unknown key '{key}' for ContractIDPreimage")
def __hash__(self):
return hash(
(
self.type,
self.from_address,
self.from_asset,
)
)
def __eq__(self, other: object):
if not isinstance(other, self.__class__):
return NotImplemented
return (
self.type == other.type
and self.from_address == other.from_address
and self.from_asset == other.from_asset
)
def __repr__(self):
out = []
out.append(f"type={self.type}")
if self.from_address is not None:
out.append(f"from_address={self.from_address}")
if self.from_asset is not None:
out.append(f"from_asset={self.from_asset}")
return f"<ContractIDPreimage [{', '.join(out)}]>"