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# frozen_string_literal: true
require_relative "./executor"
class BatchLoader
class ExecutorProxy
attr_reader :default_value, :block, :global_executor
def initialize(default_value, key, &block)
@default_value = default_value
@block = block
@block_hash_key = [block.source_location, key]
@global_executor = BatchLoader::Executor.ensure_current
end
def add(item:)
items_to_load << item
end
def list_items
items_to_load.to_a.freeze
end
def delete(items:)
global_executor.items_by_block[@block_hash_key] = items_to_load - items
end
def load(item:, value:)
loaded[item] = value
end
def loaded_value(item:)
if value_loaded?(item: item)
loaded[item]
else
@default_value.dup
end
end
def value_loaded?(item:)
loaded.key?(item)
end
def unload_value(item:)
loaded.delete(item)
end
private
def items_to_load
global_executor.items_by_block[@block_hash_key]
end
def loaded
global_executor.loaded_values_by_block[@block_hash_key]
end
end
end
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