# frozen_string_literal: true

# This replaces the previous post-deployment migration 20201207165956_remove_duplicate_services_spec.rb,
# we have to run this again due to a bug in how we were receiving the arguments in the background migration.
class RemoveDuplicateServices2 < ActiveRecord::Migration[6.0]
  include Gitlab::Database::MigrationHelpers

  DOWNTIME = false
  INTERVAL = 2.minutes
  BATCH_SIZE = 5_000
  MIGRATION = 'RemoveDuplicateServices'

  disable_ddl_transaction!

  def up
    project_ids_with_duplicates = Gitlab::BackgroundMigration::RemoveDuplicateServices::Service.project_ids_with_duplicates

    project_ids_with_duplicates.each_batch(of: BATCH_SIZE, column: :project_id) do |batch, index|
      migrate_in(
        INTERVAL * index,
        MIGRATION,
        batch.pluck(:project_id)
      )
    end
  end

  def down
  end
end