Module: LlmCostTracker::PriceRegistry

Defined in:
lib/llm_cost_tracker/price_registry.rb

Constant Summary collapse

DEFAULT_PRICES_PATH = 
File.expand_path("prices.json", __dir__)
EMPTY_PRICES = 
{}.freeze
PRICE_KEYS = 
%w[input cached_input output cache_read_input cache_creation_input].freeze
METADATA_KEYS = 
%w[_source _updated _notes].freeze
NORMALIZE_PRICE_ENTRY = 
lambda do |price|
  (price || {}).each_with_object({}) do |(key, value), normalized|
    key = key.to_s
    normalized[key.to_sym] = Float(value) if PRICE_KEYS.include?(key)
  end
end
NORMALIZE_PRICE_TABLE = 
lambda do |table|
  (table || {}).each_with_object({}) do |(model, price), normalized|
    normalized[model.to_s] = NORMALIZE_PRICE_ENTRY.call(price)
  end
end
RAW_REGISTRY = 
JSON.parse(File.read(DEFAULT_PRICES_PATH)).freeze
PRICE_METADATA = 
RAW_REGISTRY.fetch("metadata", {}).freeze
BUILTIN_PRICES = 
NORMALIZE_PRICE_TABLE.call(RAW_REGISTRY.fetch("models", {})).freeze

Class Method Summary collapse

Class Method Details

.builtin_prices ⇒ Object 



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# File 'lib/llm_cost_tracker/price_registry.rb', line 33

def builtin_prices
  BUILTIN_PRICES
end

.file_prices(path) ⇒ Object 



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# File 'lib/llm_cost_tracker/price_registry.rb', line 45

def file_prices(path)
  return EMPTY_PRICES unless path

  path = path.to_s
  FILE_PRICES_MUTEX.synchronize do
    cache_key = [path, File.mtime(path).to_f]
    return @file_prices if @file_prices_cache_key == cache_key

    @file_prices_cache_key = cache_key
    @file_prices = normalize_file_prices(price_file_models(load_price_file(path)), path: path).freeze
  end
rescue Errno::ENOENT, JSON::ParserError, Psych::Exception, ArgumentError, TypeError, NoMethodError => e
  raise Error, "Unable to load prices_file #{path.inspect}: #{e.message}"
end

.metadata ⇒ Object 



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# File 'lib/llm_cost_tracker/price_registry.rb', line 37

def metadata
  PRICE_METADATA
end

.normalize_price_table(table) ⇒ Object 



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# File 'lib/llm_cost_tracker/price_registry.rb', line 41

def normalize_price_table(table)
  NORMALIZE_PRICE_TABLE.call(table)
end