Maintenance::ExportCustomFieldsTask

# frozen_string_literal: true

class Maintenance::ExportCustomFieldsTask < MaintenanceTasks::Task
  include ArrayHelper

  no_collection

  attribute :emails, :string
  attribute :brand_name, :string
  attribute :mid_back_office_name, :string
  attribute :mbo_country_code, :string

  validates :emails, presence: true, fcm_email_format: true

  def process
    CsvGenerator.new.call do |file|
      CustomFields::RawDataExtractor.new(
        brand_name: brand_name,
        mid_back_office_name: mid_back_office_name,
        mbo_country_code: mbo_country_code
      ).call do |line|
        file.puts(line)
      end

      file.rewind
      blob = upload_to_storage(file)
      send_email_with_url(blob)
    end
  end

  private

  def upload_to_storage(file)
    ActiveStorage::Blob.create_and_upload!(
      io: file,
      filename: "custom_fields_export_#{Time.zone.now.strftime('%Y%m%d_%H%M%S')}.csv",
      content_type: 'text/csv'
    )
  end

  def send_email_with_url(blob)
    file_url = Rails.application.routes.url_helpers.rails_blob_url(
      blob,
      host: application_host,
      protocol: 'https'
    )

    ReportingFieldCsvMailer.send_url(
      recipients: emails_array(emails),
      file_url: file_url
    ).deliver_now
  end

  def application_host
    ENV.fetch('VIRTUAL_HOST').split(',').first.strip
  end
end