# frozen_string_literal: true

require "sidekiq/client"
require "sidekiq/worker/options"

module Sidekiq
  ##
  # Include this module in your worker class and you can easily create
  # asynchronous jobs:
  #
  #   class HardWorker
  #     include Sidekiq::Worker
  #
  #     def perform(*args)
  #       # do some work
  #     end
  #   end
  #
  # Then in your Rails app, you can do this:
  #
  #   HardWorker.perform_async(1, 2, 3)
  #
  # Note that perform_async is a class method, perform is an instance method.
  module Worker
    attr_accessor :jid

    def self.included(base)
      raise ArgumentError, "You can only include Sidekiq::Worker::Options in an ActiveJob: #{base.name}" if base.ancestors.any? { |c| c.name == "ActiveJob::Base" }

      base.include(Options)
      base.extend(ClassMethods)
    end

    def logger
      Sidekiq.logger
    end

    # This helper class encapsulates the set options for `set`, e.g.
    #
    #     SomeWorker.set(queue: 'foo').perform_async(....)
    #
    class Setter
      def initialize(klass, opts)
        @klass = klass
        @opts = opts
      end

      def set(options)
        @opts.merge!(options)
        self
      end

      def perform_async(*args)
        @klass.client_push(@opts.merge("args" => args, "class" => @klass))
      end

      # +interval+ must be a timestamp, numeric or something that acts
      #   numeric (like an activesupport time interval).
      def perform_in(interval, *args)
        int = interval.to_f
        now = Time.now.to_f
        ts = (int < 1_000_000_000 ? now + int : int)

        payload = @opts.merge("class" => @klass, "args" => args, "at" => ts)
        # Optimization to enqueue something now that is scheduled to go out now or in the past
        payload.delete("at") if ts <= now
        @klass.client_push(payload)
      end
      alias_method :perform_at, :perform_in
    end

    module ClassMethods
      def delay(*args)
        raise ArgumentError, "Do not call .delay on a Sidekiq::Worker class, call .perform_async"
      end

      def delay_for(*args)
        raise ArgumentError, "Do not call .delay_for on a Sidekiq::Worker class, call .perform_in"
      end

      def delay_until(*args)
        raise ArgumentError, "Do not call .delay_until on a Sidekiq::Worker class, call .perform_at"
      end

      def set(options)
        Setter.new(self, options)
      end

      def perform_async(*args)
        client_push("class" => self, "args" => args)
      end

      # +interval+ must be a timestamp, numeric or something that acts
      #   numeric (like an activesupport time interval).
      def perform_in(interval, *args)
        int = interval.to_f
        now = Time.now.to_f
        ts = (int < 1_000_000_000 ? now + int : int)

        item = {"class" => self, "args" => args, "at" => ts}

        # Optimization to enqueue something now that is scheduled to go out now or in the past
        item.delete("at") if ts <= now

        client_push(item)
      end
      alias_method :perform_at, :perform_in

      ##
      # Allows customization for this type of Worker.
      # Legal options:
      #
      #   queue - use a named queue for this Worker, default 'default'
      #   retry - enable the RetryJobs middleware for this Worker, *true* to use the default
      #      or *Integer* count
      #   backtrace - whether to save any error backtrace in the retry payload to display in web UI,
      #      can be true, false or an integer number of lines to save, default *false*
      #   pool - use the given Redis connection pool to push this type of job to a given shard.
      #
      # In practice, any option is allowed.  This is the main mechanism to configure the
      # options for a specific job.
      def sidekiq_options(opts = {})
        super
      end

      def client_push(item) # :nodoc:
        pool = Thread.current[:sidekiq_via_pool] || get_sidekiq_options["pool"] || Sidekiq.redis_pool
        # stringify
        item.keys.each do |key|
          item[key.to_s] = item.delete(key)
        end

        Sidekiq::Client.new(pool).push(item)
      end
    end
  end
end