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from datetime import datetime, timedelta
from PyQt5.QtCore import pyqtProperty, pyqtSignal, pyqtSlot, QObject
from PyQt5.QtCore import Qt, QAbstractListModel, QModelIndex
from electrum.logging import get_logger
from electrum.util import Satoshis, TxMinedInfo
from .qetypes import QEAmount
class QETransactionListModel(QAbstractListModel):
def __init__(self, wallet, parent=None):
super().__init__(parent)
self.wallet = wallet
self.tx_history = []
_logger = get_logger(__name__)
# define listmodel rolemap
_ROLE_NAMES=('txid','fee_sat','height','confirmations','timestamp','monotonic_timestamp',
'incoming','bc_value','bc_balance','date','label','txpos_in_block','fee',
'inputs','outputs','section')
_ROLE_KEYS = range(Qt.UserRole, Qt.UserRole + len(_ROLE_NAMES))
_ROLE_MAP = dict(zip(_ROLE_KEYS, [bytearray(x.encode()) for x in _ROLE_NAMES]))
_ROLE_RMAP = dict(zip(_ROLE_NAMES, _ROLE_KEYS))
def rowCount(self, index):
return len(self.tx_history)
def roleNames(self):
return self._ROLE_MAP
def data(self, index, role):
tx = self.tx_history[index.row()]
role_index = role - Qt.UserRole
value = tx[self._ROLE_NAMES[role_index]]
if isinstance(value, (bool, list, int, str, QEAmount)) or value is None:
return value
if isinstance(value, Satoshis):
return value.value
return str(value)
def clear(self):
self.beginResetModel()
self.tx_history = []
self.endResetModel()
def tx_to_model(self, tx):
item = tx
for output in item['outputs']:
output['value'] = output['value'].value
item['bc_value'] = QEAmount(amount_sat=item['bc_value'].value)
item['bc_balance'] = QEAmount(amount_sat=item['bc_balance'].value)
# newly arriving txs have no (block) timestamp
# TODO?
if not item['timestamp']:
item['timestamp'] = datetime.timestamp(datetime.now())
txts = datetime.fromtimestamp(item['timestamp'])
today = datetime.today().replace(hour=0, minute=0, second=0, microsecond=0)
if (txts > today):
item['section'] = 'today'
elif (txts > today - timedelta(days=1)):
item['section'] = 'yesterday'
elif (txts > today - timedelta(days=7)):
item['section'] = 'lastweek'
elif (txts > today - timedelta(days=31)):
item['section'] = 'lastmonth'
else:
item['section'] = 'older'
item['date'] = self.format_date_by_section(item['section'], datetime.fromtimestamp(item['timestamp']))
return item
def format_date_by_section(self, section, date):
#TODO: l10n
dfmt = {
'today': '%H:%M:%S',
'yesterday': '%H:%M:%S',
'lastweek': '%a, %H:%M:%S',
'lastmonth': '%a %d, %H:%M:%S',
'older': '%G-%m-%d %H:%M:%S'
}
if section not in dfmt:
section = 'older'
return date.strftime(dfmt[section])
# initial model data
def init_model(self):
history = self.wallet.get_detailed_history(show_addresses = True)
txs = []
for tx in history['transactions']:
txs.append(self.tx_to_model(tx))
self.clear()
self.beginInsertRows(QModelIndex(), 0, len(txs) - 1)
self.tx_history = txs
self.tx_history.reverse()
self.endInsertRows()
def update_tx(self, txid, info):
i = 0
for tx in self.tx_history:
if tx['txid'] == txid:
tx['height'] = info.height
tx['confirmations'] = info.conf
tx['timestamp'] = info.timestamp
tx['date'] = self.format_date_by_section(tx['section'], datetime.fromtimestamp(info.timestamp))
index = self.index(i,0)
roles = [self._ROLE_RMAP[x] for x in ['height','confirmations','timestamp','date']]
self.dataChanged.emit(index, index, roles)
return
i = i + 1
@pyqtSlot(str, str)
def update_tx_label(self, txid, label):
i = 0
for tx in self.tx_history:
if tx['txid'] == txid:
tx['label'] = label
index = self.index(i,0)
self.dataChanged.emit(index, index, [self._ROLE_RMAP['label']])
return
i = i + 1
@pyqtSlot(int)
def updateBlockchainHeight(self, height):
self._logger.debug('updating height to %d' % height)
i = 0
for tx in self.tx_history:
if tx['height'] > 0:
tx['confirmations'] = height - tx['height'] + 1
index = self.index(i,0)
roles = [self._ROLE_RMAP['confirmations']]
self.dataChanged.emit(index, index, roles)
i = i + 1