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# frozen_string_literal: true
require 'active_support/core_ext/hash/indifferent_access'
require 'ostruct'
module EacRubyUtils
class OptionsConsumer
DEFAULT_OPTIONS = { validate: true, ostruct: false }.with_indifferent_access.freeze
def initialize(data)
@data = data.with_indifferent_access
end
def consume(key, default_value = nil, &block)
return default_value unless data.key?(key)
value = data.delete(key)
value = yield(value) if block
value
end
# If last argument is a Hash it is used a options.
# Options:
# * +validate+: validate after consume.
# * +ostruct+: return a [OpenStruct] instead a [Hash].
# @return [Hash] (Default) or [OpenStruct].
def consume_all(*keys)
options = consume_all_extract_options(keys)
result = consume_all_build_result(keys, options.fetch(:ostruct))
validate if options.fetch(:validate)
result
end
def validate
return if data.empty?
raise "Invalid keys: #{data.keys}"
end
def left_data
data.dup
end
private
attr_reader :data
def consume_all_extract_options(keys)
options = DEFAULT_OPTIONS
options = options.merge(keys.pop.with_indifferent_access) if keys.last.is_a?(Hash)
options
end
def consume_all_build_result(keys, ostruct)
if ostruct
::OpenStruct.new(keys.map { |key| [key, consume(key)] }.to_h)
else
keys.map { |key| consume(key) }
end
end
end
end
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395 entries across 395 versions & 4 rubygems