77 lines
2.7 KiB
Python
77 lines
2.7 KiB
Python
# DrCr: Web-based double-entry bookkeeping framework
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# Copyright (C) 2022–2024 Lee Yingtong Li (RunasSudo)
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from drcr.database import db
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from drcr.models import Amount, reporting_commodity
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from drcr.webapp import eofy_date
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class CGTAsset(Amount):
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def __init__(self, quantity, commodity, account, acquisition_date):
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super().__init__(quantity, commodity)
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self.account = account
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self.acquisition_date = acquisition_date
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self.disposal_date = None
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self.disposal_value = None
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self.cost_adjustments = []
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def __repr__(self):
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return '<{}: {} [{:%Y-%m-%d}]>'.format(self.__class__.__name__, self.format('force'), self.acquisition_date)
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def commodity_name(self):
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return self.commodity[:self.commodity.index('{')].strip()
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def cost_adjustment(self):
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return Amount(sum(a.cost_adjustment for a in self.cost_adjustments), reporting_commodity())
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def cost_adjustment_brought_forward(self):
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date1 = eofy_date()
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date1 = date1.replace(year=date1.year - 1)
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return Amount(sum(a.cost_adjustment for a in self.cost_adjustments if a.dt <= date1), reporting_commodity())
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def cost_adjustment_current_period(self):
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date1 = eofy_date()
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date1 = date1.replace(year=date1.year - 1)
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date2 = eofy_date()
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return Amount(sum(a.cost_adjustment for a in self.cost_adjustments if a.dt > date1 and a.dt <= date2), reporting_commodity())
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def gain(self):
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return self.disposal_value - (self.as_cost() + self.cost_adjustment())
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class CGTCostAdjustment(db.Model):
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__tablename__ = 'austax_cgt_cost_adjustments'
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id = db.Column(db.Integer, primary_key=True)
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quantity = db.Column(db.Integer)
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commodity = db.Column(db.String)
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account = db.Column(db.String)
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acquisition_date = db.Column(db.DateTime)
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dt = db.Column(db.DateTime)
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description = db.Column(db.String)
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cost_adjustment = db.Column(db.Integer)
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def asset(self):
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return CGTAsset(self.quantity, self.commodity, self.account, self.acquisition_date)
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def cost_adjustment_amount(self):
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return Amount(self.cost_adjustment, reporting_commodity())
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