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e8f935bc6f
* Remove plaid initialiser The initializer can be safely removed because: - Config is lazily loaded via Provider::Registry - reload_configuration is called after settings updates - All calling code handles nil configs gracefully - Initial nil state is fine - config loads on first use * Fix for missing config * Actually don't pollute application.rb * Add currency loading for balances * Fix race condition on lazy load * Allow loans to be imported in lunch flow also * Fix currency processor
51 lines
1.8 KiB
Ruby
51 lines
1.8 KiB
Ruby
# Provides currency normalization and validation for provider data imports
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#
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# This concern provides a shared method to parse and normalize currency codes
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# from external providers (Plaid, SimpleFIN, LunchFlow), ensuring:
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# - Consistent uppercase formatting (e.g., "eur" -> "EUR")
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# - Validation of 3-letter ISO currency codes
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# - Proper handling of nil, empty, and invalid values
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#
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# Usage:
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# include CurrencyNormalizable
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# currency = parse_currency(api_data[:currency])
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module CurrencyNormalizable
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extend ActiveSupport::Concern
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private
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# Parse and normalize a currency code from provider data
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#
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# @param currency_value [String, nil] Raw currency value from provider API
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# @return [String, nil] Normalized uppercase 3-letter currency code, or nil if invalid
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#
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# @example
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# parse_currency("usd") # => "USD"
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# parse_currency("EUR") # => "EUR"
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# parse_currency(" gbp ") # => "GBP"
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# parse_currency("invalid") # => nil (logs warning)
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# parse_currency(nil) # => nil
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# parse_currency("") # => nil
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def parse_currency(currency_value)
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# Handle nil, empty string, or whitespace-only strings
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return nil if currency_value.blank?
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# Normalize to uppercase 3-letter code
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normalized = currency_value.to_s.strip.upcase
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# Validate it's a reasonable currency code (3 letters)
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if normalized.match?(/\A[A-Z]{3}\z/)
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normalized
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else
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log_invalid_currency(currency_value)
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nil
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end
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end
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# Log warning for invalid currency codes
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# Override this method in including classes to provide context-specific logging
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def log_invalid_currency(currency_value)
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Rails.logger.warn("Invalid currency code '#{currency_value}', defaulting to fallback")
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end
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end
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