def _process_vault_dai_payback(
self,
pot: 'AccountingPot', # pylint: disable=unused-argument
event: HistoryBaseEntry,
other_events: List[HistoryBaseEntry], # pylint: disable=unused-argument
) -> None:
cdp_id = event.extra_data[
'cdp_id'] # type: ignore # this event should have extra_data
self.vault_balances[cdp_id] -= event.balance.amount
if self.vault_balances[cdp_id] < ZERO:
loss = -1 * self.vault_balances[cdp_id]
pot.add_spend(
event_type=AccountingEventType.TRANSACTION_EVENT,
notes=f'Lost {loss} DAI as debt during payback to CDP {cdp_id}',
location=event.location,
timestamp=event.get_timestamp_in_sec(),
asset=A_DAI,
amount=loss,
taxable=True,
extra_data={'tx_hash': event.event_identifier},
)
self.vault_balances[cdp_id] = ZERO
def _process_dsr_withdraw(
self,
pot: 'AccountingPot', # pylint: disable=unused-argument
event: HistoryBaseEntry,
other_events: List[HistoryBaseEntry], # pylint: disable=unused-argument
) -> None:
address = cast(ChecksumEthAddress,
event.location_label) # should always exist
self.dsr_balances[address] -= event.balance.amount
if self.dsr_balances[address] < ZERO:
profit = -1 * self.dsr_balances[address]
pot.add_acquisition(
event_type=AccountingEventType.TRANSACTION_EVENT,
notes=f'Gained {profit} DAI from Makerdao DSR',
location=event.location,
timestamp=event.get_timestamp_in_sec(),
asset=A_DAI,
amount=profit,
taxable=True,
extra_data={'tx_hash': event.event_identifier},
)
self.dsr_balances[address] = ZERO
def process(
self,
event: HistoryBaseEntry,
events_iterator: Iterator[AccountingEventMixin],
) -> int:
"""Process a transaction event and return amount of actions consumed from the iterator"""
timestamp = event.get_timestamp_in_sec()
type_identifier = event.get_type_identifier()
event_settings = self.tx_event_settings.get(type_identifier, None)
if event_settings is None:
log.debug(
f'During transaction accounting found transaction event {event} '
f'with no mapped event settings. Skipping...', )
return 1
notes = event.notes if event.notes else ''
counter = 1
other_events: List[HistoryBaseEntry] = []
while counter < event_settings.take:
next_event = next(events_iterator, None)
if next_event is None:
log.debug(
f'At accounting for tx_event {notes} we expected to take '
f'{event_settings.take} additional events but found no more',
)
return counter
if not isinstance(next_event, HistoryBaseEntry):
log.debug(
f'At accounting for tx_event {notes} we expected to take '
f'{event_settings.take} additional events but found a '
f'non history base entry event', )
return counter
other_events.append(next_event)
counter += 1
# if there is any module specific accountant functionality call it
if event_settings.accountant_cb is not None:
event_settings.accountant_cb(
pot=self.pot,
event=event,
other_events=other_events,
)
if event_settings.multitake_treatment == TxMultitakeTreatment.SWAP: # noqa: E501
return self._process_tx_swap(
timestamp=timestamp,
out_event=event,
in_event=other_events[0],
event_settings=event_settings,
)
self.pot.add_asset_change_event(
method=event_settings.method,
event_type=AccountingEventType.TRANSACTION_EVENT,
notes=event.notes if event.notes else '',
location=event.location,
timestamp=timestamp,
asset=event.asset,
amount=event.balance.amount,
taxable=event_settings.taxable,
count_entire_amount_spend=event_settings.count_entire_amount_spend,
count_cost_basis_pnl=event_settings.count_cost_basis_pnl,
extra_data={'tx_hash': event.event_identifier},
)
return 1