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# frozen_string_literal: true
module DeclarativePolicy
class Configuration
ConfigurationError = Class.new(StandardError)
def initialize
@named_policies = {}
@name_transformation = ->(name) { "#{name}Policy" }
@class_for = ->(name) { Object.const_get(name) }
end
def named_policy(name, policy = nil)
@named_policies[name] = policy if policy
@named_policies[name] || raise(ConfigurationError, "No #{name} policy configured")
end
def nil_policy(policy = nil)
@nil_policy = policy if policy
@nil_policy || ::DeclarativePolicy::NilPolicy
end
def name_transformation(&block)
@name_transformation = block
nil
end
def class_for(&block)
@class_for = block
nil
end
def policy_class(domain_class_name)
return unless domain_class_name
@class_for.call((@name_transformation.call(domain_class_name)))
rescue NameError
nil
end
end
end
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