<?php

namespace Doctrine\Common\Cache;

use Redis;

use function array_combine;
use function array_diff_key;
use function array_fill_keys;
use function array_filter;
use function array_keys;
use function count;
use function defined;
use function extension_loaded;
use function is_bool;

/**
 * Redis cache provider.
 *
 * @deprecated Deprecated without replacement in doctrine/cache 1.11. This class will be dropped in 2.0
 *
 * @link   www.doctrine-project.org
 */
class RedisCache extends CacheProvider
{
    /** @var Redis|null */
    private $redis;

    /**
     * Sets the redis instance to use.
     *
     * @return void
     */
    public function setRedis(Redis $redis)
    {
        $redis->setOption(Redis::OPT_SERIALIZER, $this->getSerializerValue());
        $this->redis = $redis;
    }

    /**
     * Gets the redis instance used by the cache.
     *
     * @return Redis|null
     */
    public function getRedis()
    {
        return $this->redis;
    }

    /**
     * {@inheritdoc}
     */
    protected function doFetch($id)
    {
        return $this->redis->get($id);
    }

    /**
     * {@inheritdoc}
     */
    protected function doFetchMultiple(array $keys)
    {
        $fetchedItems = array_combine($keys, $this->redis->mget($keys));

        // Redis mget returns false for keys that do not exist. So we need to filter those out unless it's the real data.
        $keysToFilter = array_keys(array_filter($fetchedItems, static function ($item): bool {
            return $item === false;
        }));

        if ($keysToFilter) {
            $multi = $this->redis->multi(Redis::PIPELINE);
            foreach ($keysToFilter as $key) {
                $multi->exists($key);
            }

            $existItems     = array_filter($multi->exec());
            $missedItemKeys = array_diff_key($keysToFilter, $existItems);
            $fetchedItems   = array_diff_key($fetchedItems, array_fill_keys($missedItemKeys, true));
        }

        return $fetchedItems;
    }

    /**
     * {@inheritdoc}
     */
    protected function doSaveMultiple(array $keysAndValues, $lifetime = 0)
    {
        if ($lifetime) {
            // Keys have lifetime, use SETEX for each of them
            $multi = $this->redis->multi(Redis::PIPELINE);
            foreach ($keysAndValues as $key => $value) {
                $multi->setex($key, $lifetime, $value);
            }

            $succeeded = array_filter($multi->exec());

            return count($succeeded) == count($keysAndValues);
        }

        // No lifetime, use MSET
        return (bool) $this->redis->mset($keysAndValues);
    }

    /**
     * {@inheritdoc}
     */
    protected function doContains($id)
    {
        $exists = $this->redis->exists($id);

        if (is_bool($exists)) {
            return $exists;
        }

        return $exists > 0;
    }

    /**
     * {@inheritdoc}
     */
    protected function doSave($id, $data, $lifeTime = 0)
    {
        if ($lifeTime > 0) {
            return $this->redis->setex($id, $lifeTime, $data);
        }

        return $this->redis->set($id, $data);
    }

    /**
     * {@inheritdoc}
     */
    protected function doDelete($id)
    {
        return $this->redis->del($id) >= 0;
    }

    /**
     * {@inheritdoc}
     */
    protected function doDeleteMultiple(array $keys)
    {
        return $this->redis->del($keys) >= 0;
    }

    /**
     * {@inheritdoc}
     */
    protected function doFlush()
    {
        return $this->redis->flushDB();
    }

    /**
     * {@inheritdoc}
     */
    protected function doGetStats()
    {
        $info = $this->redis->info();

        return [
            Cache::STATS_HITS   => $info['keyspace_hits'],
            Cache::STATS_MISSES => $info['keyspace_misses'],
            Cache::STATS_UPTIME => $info['uptime_in_seconds'],
            Cache::STATS_MEMORY_USAGE      => $info['used_memory'],
            Cache::STATS_MEMORY_AVAILABLE  => false,
        ];
    }

    /**
     * Returns the serializer constant to use. If Redis is compiled with
     * igbinary support, that is used. Otherwise the default PHP serializer is
     * used.
     *
     * @return int One of the Redis::SERIALIZER_* constants
     */
    protected function getSerializerValue()
    {
        if (defined('Redis::SERIALIZER_IGBINARY') && extension_loaded('igbinary')) {
            return Redis::SERIALIZER_IGBINARY;
        }

        return Redis::SERIALIZER_PHP;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NDg3NDMwODQ1MzAxOTkxMCA4NTYxNTU5MjIxMTA3NTIyIDc4OTUxMTQ5Nzg3NTEwMA==