<?php

declare(strict_types=1);

namespace Enqueue\Dbal;

use Doctrine\DBAL\Connection;
use Interop\Queue\Consumer;
use Interop\Queue\Exception\InvalidMessageException;
use Interop\Queue\Impl\ConsumerPollingTrait;
use Interop\Queue\Message;
use Interop\Queue\Queue;

class DbalConsumer implements Consumer
{
    use ConsumerPollingTrait,
        DbalConsumerHelperTrait;

    /**
     * @var DbalContext
     */
    private $context;

    /**
     * @var Connection
     */
    private $dbal;

    /**
     * @var DbalDestination
     */
    private $queue;

    /**
     * Default 20 minutes in milliseconds.
     *
     * @var int
     */
    private $redeliveryDelay;

    public function __construct(DbalContext $context, DbalDestination $queue)
    {
        $this->context = $context;
        $this->queue = $queue;
        $this->dbal = $this->context->getDbalConnection();

        $this->redeliveryDelay = 1200000;
    }

    /**
     * Get interval between retry failed messages in milliseconds.
     */
    public function getRedeliveryDelay(): int
    {
        return $this->redeliveryDelay;
    }

    /**
     * Get interval between retrying failed messages in milliseconds.
     */
    public function setRedeliveryDelay(int $redeliveryDelay): self
    {
        $this->redeliveryDelay = $redeliveryDelay;

        return $this;
    }

    /**
     * @return DbalDestination
     */
    public function getQueue(): Queue
    {
        return $this->queue;
    }

    public function receiveNoWait(): ?Message
    {
        $redeliveryDelay = $this->getRedeliveryDelay() / 1000; // milliseconds to seconds

        $this->removeExpiredMessages();
        $this->redeliverMessages();

        return $this->fetchMessage([$this->queue->getQueueName()], $redeliveryDelay);
    }

    /**
     * @param DbalMessage $message
     */
    public function acknowledge(Message $message): void
    {
        InvalidMessageException::assertMessageInstanceOf($message, DbalMessage::class);

        $this->deleteMessage($message->getDeliveryId());
    }

    /**
     * @param DbalMessage $message
     */
    public function reject(Message $message, bool $requeue = false): void
    {
        InvalidMessageException::assertMessageInstanceOf($message, DbalMessage::class);

        $this->acknowledge($message);

        if ($requeue) {
            $message = clone $message;
            $message->setRedelivered(false);

            $this->getContext()->createProducer()->send($this->queue, $message);
        }
    }

    protected function getContext(): DbalContext
    {
        return $this->context;
    }

    protected function getConnection(): Connection
    {
        return $this->dbal;
    }
}
