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Maybe/app/models/balance/reverse_calculator.rb
Zach Gollwitzer e657c40d19
Account:: namespace simplifications and cleanup (#2110)
* Flatten Holding model

* Flatten balance model

* Entries domain renames

* Fix valuations reference

* Fix trades stream

* Fix brakeman warnings

* Fix tests

* Replace existing entryable type references in DB
2025-04-14 11:40:34 -04:00

32 lines
970 B
Ruby

class Balance::ReverseCalculator < Balance::BaseCalculator
private
def calculate_balances
current_cash_balance = account.cash_balance
previous_cash_balance = nil
@balances = []
Date.current.downto(account.start_date).map do |date|
entries = sync_cache.get_entries(date)
holdings = sync_cache.get_holdings(date)
holdings_value = holdings.sum(&:amount)
valuation = sync_cache.get_valuation(date)
previous_cash_balance = if valuation
valuation.amount - holdings_value
else
calculate_next_balance(current_cash_balance, entries, direction: :reverse)
end
if valuation.present?
@balances << build_balance(date, previous_cash_balance, holdings_value)
else
@balances << build_balance(date, current_cash_balance, holdings_value)
end
current_cash_balance = previous_cash_balance
end
@balances
end
end