class SendSmsJob < ApplicationJob
  queue_as :default
  retry_on StandardError, wait: :exponentially_longer, attempts: 3

  def perform(sms_message_id)
    sms = SmsMessage.find(sms_message_id)

    # Skip if already sent or not outbound
    return unless sms.outbound? && sms.status == "queued"

    # Find available gateway
    gateway = Gateway.available_for_sending

    unless gateway
      Rails.logger.warn("No available gateway for message #{sms.message_id}")
      sms.update!(status: "pending")
      # Retry later
      SendSmsJob.set(wait: 1.minute).perform_later(sms_message_id)
      return
    end

    # Update message status
    sms.mark_sent!(gateway)

    # Broadcast message to gateway via WebSocket
    GatewayChannel.broadcast_to(gateway, {
      action: "send_sms",
      message_id: sms.message_id,
      recipient: sms.phone_number,
      message: sms.message_body
    })

    Rails.logger.info("Sent SMS #{sms.message_id} to gateway #{gateway.device_id}")
  rescue ActiveRecord::RecordNotFound => e
    Rails.logger.error("SMS message not found: #{e.message}")
  rescue StandardError => e
    Rails.logger.error("Failed to send SMS #{sms_message_id}: #{e.message}")
    sms&.increment_retry!
    raise
  end
end