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# frozen_string_literal: true
require "sidekiq/extensions/generic_proxy"
module Sidekiq
module Extensions
##
# Adds +delay+, +delay_for+ and +delay_until+ methods to ActionMailer to offload arbitrary email
# delivery to Sidekiq.
#
# @example
# UserMailer.delay.send_welcome_email(new_user)
# UserMailer.delay_for(5.days).send_welcome_email(new_user)
# UserMailer.delay_until(5.days.from_now).send_welcome_email(new_user)
class DelayedMailer
include Sidekiq::Worker
def perform(yml)
(target, method_name, args) = YAML.load(yml)
msg = target.public_send(method_name, *args)
# The email method can return nil, which causes ActionMailer to return
# an undeliverable empty message.
if msg
msg.deliver_now
else
raise "#{target.name}##{method_name} returned an undeliverable mail object"
end
end
end
module ActionMailer
def sidekiq_delay(options = {})
Proxy.new(DelayedMailer, self, options)
end
def sidekiq_delay_for(interval, options = {})
Proxy.new(DelayedMailer, self, options.merge("at" => Time.now.to_f + interval.to_f))
end
def sidekiq_delay_until(timestamp, options = {})
Proxy.new(DelayedMailer, self, options.merge("at" => timestamp.to_f))
end
alias_method :delay, :sidekiq_delay
alias_method :delay_for, :sidekiq_delay_for
alias_method :delay_until, :sidekiq_delay_until
end
end
end
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