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# frozen_string_literal: true
# rubocop:todo all
# Copyright (C) 2014-2020 MongoDB Inc.
#
# Licensed under the Apache License, Version 2.0 (the 'License');
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an 'AS IS' BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
module Mongo
module WriteConcern
# Defines common behavior for write concerns.
#
# @since 2.7.0
class Base
# @return [ Hash ] The write concern options.
attr_reader :options
# Instantiate a new write concern given the options.
#
# @api private
#
# @example Instantiate a new write concern mode.
# Mongo::WriteConcern::Acknowledged.new(:w => 1)
#
# @param [ Hash ] options The options to instantiate with.
#
# @option options :w [ Integer, String ] The number of servers or the
# custom mode to acknowledge.
# @option options :j [ true, false ] Whether to acknowledge a write to
# the journal.
# @option options :fsync [ true, false ] Should the write be synced to
# disc.
# @option options :wtimeout [ Integer ] The number of milliseconds to
# wait for acknowledgement before raising an error.
#
# @since 2.0.0
def initialize(options)
options = Options::Mapper.transform_keys_to_symbols(options)
options = Options::Mapper.transform_values_to_strings(options).freeze
if options[:w]
if options[:w] == 0 && options[:j]
raise Error::InvalidWriteConcern, "Invalid write concern options: :j cannot be true when :w is 0: #{options.inspect}"
elsif options[:w] == 0 && options[:fsync]
raise Error::InvalidWriteConcern, "Invalid write concern options: :fsync cannot be true when :w is 0: #{options.inspect}"
elsif options[:w].is_a?(Integer) && options[:w] < 0
raise Error::InvalidWriteConcern, "Invalid write concern options: :w cannot be negative (#{options[:w]}): #{options.inspect}"
end
end
if options[:journal]
raise Error::InvalidWriteConcern, "Invalid write concern options: use :j for journal: #{options.inspect}"
end
@options = options
end
end
end
end
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