# frozen_string_literal: true

class UpdateStatusExpirationService < BaseService
  SCAN_EXPIRATION_RE = /#exp((\d.\d|\d)+)([dhms]+)/

  def call(status)
    existing_expiration = ScheduledExpirationStatus.find_by(status: status)
    existing_expiration.destroy! if existing_expiration

    expiration = status.text.scan(SCAN_EXPIRATION_RE).first
    return if !expiration

    expiration_num = expiration[1].to_f
    expiration_option = expiration[2]
    base_time = status.created_at || Time.now.utc

    raise Mastodon::ValidationError, 'Too many expiration value' if expiration_num >= 10000

    expired_at = base_time + (expiration_option == 'd' ? expiration_num.days : expiration_option == 'h' ? expiration_num.hours : expiration_option == 's' ? expiration_num.seconds : expiration_num.minutes)
    ScheduledExpirationStatus.create!(account: status.account, status: status, scheduled_at: expired_at)
  end
end