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require "active_support/core_ext/module/delegation"
class ActiveStorage::Service::MirrorService < ActiveStorage::Service
attr_reader :primary, :mirrors
delegate :download, :exist?, :url, to: :primary
# Stitch together from named services.
def self.build(primary:, mirrors:, configurator:, **options) #:nodoc:
new \
primary: configurator.build(primary),
mirrors: mirrors.collect { |name| configurator.build name }
end
def initialize(primary:, mirrors:)
@primary, @mirrors = primary, mirrors
end
def upload(key, io, checksum: nil)
each_service.collect do |service|
service.upload key, io.tap(&:rewind), checksum: checksum
end
end
def delete(key)
perform_across_services :delete, key
end
private
def each_service(&block)
[ primary, *mirrors ].each(&block)
end
def perform_across_services(method, *args)
# FIXME: Convert to be threaded
each_service.collect do |service|
service.public_send method, *args
end
end
end
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