# app/jobs/daily_dump_job.rb
class DailyDumpJob < ApplicationJob
  queue_as :daily_dump
  include GoodJob::ActiveJobExtensions::Concurrency
  
  good_job_control_concurrency_with(
    # Maximum number of unfinished jobs to allow with the concurrency key
    total_limit: 1,
    
    # Or, if more control is needed:
    # Maximum number of jobs with the concurrency key to be
    # concurrently enqueued (excludes performing jobs)
    enqueue_limit: 1,
    
    # Maximum number of jobs with the concurrency key to be
    # concurrently performed (excludes enqueued jobs)
    perform_limit: 1,
    
    # Note: Under heavy load, the total number of jobs may exceed the
    # sum of `enqueue_limit` and `perform_limit` because of race conditions
    # caused by imperfectly disjunctive states. If you need to constrain
    # the total number of jobs, use `total_limit` instead. See #378.
    
    # A unique key to be globally locked against.
    # Can be String or Lambda/Proc that is invoked in the context of the job.
    # Note: Arguments passed to #perform_later must be accessed through `arguments` method.
    key: -> { "Unique-DailyDumpJob" }
  )
  
  def perform
    zip_path = DumpService.perform
    if zip_path
      DumpMailer.daily_dump(zip_path).deliver_now
      File.delete(zip_path) if File.exist?(zip_path)
    else
      Rails.logger.error "[DailyDumpJob] Dump fehlgeschlagen."
    end
  end
end