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10f255a9a9
* Rename MarketDataSyncer to MarketDataImporter * Materializers * Importers * More reference replacements
82 lines
2.2 KiB
Ruby
82 lines
2.2 KiB
Ruby
class Account::MarketDataImporter
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attr_reader :account
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def initialize(account)
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@account = account
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end
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def import_all
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import_exchange_rates
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import_security_prices
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end
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def import_exchange_rates
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return unless needs_exchange_rates?
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return unless ExchangeRate.provider
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pair_dates = {}
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# 1. ENTRY-BASED PAIRS – currencies that differ from the account currency
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account.entries
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.where.not(currency: account.currency)
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.group(:currency)
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.minimum(:date)
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.each do |source_currency, date|
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key = [ source_currency, account.currency ]
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pair_dates[key] = [ pair_dates[key], date ].compact.min
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end
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# 2. ACCOUNT-BASED PAIR – convert the account currency to the family currency (if different)
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if foreign_account?
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key = [ account.currency, account.family.currency ]
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pair_dates[key] = [ pair_dates[key], account.start_date ].compact.min
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end
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pair_dates.each do |(source, target), start_date|
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ExchangeRate.import_provider_rates(
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from: source,
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to: target,
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start_date: start_date,
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end_date: Date.current
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)
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end
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end
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def import_security_prices
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return unless Security.provider
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account_securities = account.trades.map(&:security).uniq
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return if account_securities.empty?
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account_securities.each do |security|
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security.import_provider_prices(
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start_date: first_required_price_date(security),
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end_date: Date.current
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)
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security.import_provider_details
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end
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end
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private
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# Calculates the first date we require a price for the given security scoped to this account
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def first_required_price_date(security)
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account.trades.with_entry
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.where(security: security)
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.where(entries: { account_id: account.id })
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.minimum("entries.date")
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end
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def needs_exchange_rates?
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has_multi_currency_entries? || foreign_account?
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end
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def has_multi_currency_entries?
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account.entries.where.not(currency: account.currency).exists?
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end
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def foreign_account?
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account.currency != account.family.currency
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end
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end
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