<?php

/*
 * This file is part of the Predis package.
 *
 * (c) Daniele Alessandri <suppakilla@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Predis;

use Predis\Command\CommandInterface;
use Predis\Command\FactoryInterface;
use Predis\Configuration\OptionsInterface;
use Predis\Connection\ConnectionInterface;
use Predis\Response\Status;

/**
 * Interface defining a client able to execute commands against Redis.
 *
 * All the commands exposed by the client generally have the same signature as
 * described by the Redis documentation, but some of them offer an additional
 * and more friendly interface to ease programming which is described in the
 * following list of methods:
 *
 * @method int               del(string[]|string $keyOrKeys, string ...$keys = null)
 * @method string|null       dump(string $key)
 * @method int               exists(string $key)
 * @method int               expire(string $key, int $seconds)
 * @method int               expireat(string $key, int $timestamp)
 * @method array             keys(string $pattern)
 * @method int               move(string $key, int $db)
 * @method mixed             object($subcommand, string $key)
 * @method int               persist(string $key)
 * @method int               pexpire(string $key, int $milliseconds)
 * @method int               pexpireat(string $key, int $timestamp)
 * @method int               pttl(string $key)
 * @method string|null       randomkey()
 * @method mixed             rename(string $key, string $target)
 * @method int               renamenx(string $key, string $target)
 * @method array             scan($cursor, array $options = null)
 * @method array             sort(string $key, array $options = null)
 * @method int               ttl(string $key)
 * @method mixed             type(string $key)
 * @method int               append(string $key, $value)
 * @method int               bitcount(string $key, $start = null, $end = null)
 * @method int               bitop($operation, $destkey, $key)
 * @method array|null        bitfield(string $key, $subcommand, ...$subcommandArg)
 * @method int               bitpos(string $key, $bit, $start = null, $end = null)
 * @method int               decr(string $key)
 * @method int               decrby(string $key, int $decrement)
 * @method string|null       get(string $key)
 * @method int               getbit(string $key, $offset)
 * @method string            getrange(string $key, $start, $end)
 * @method string|null       getset(string $key, $value)
 * @method int               incr(string $key)
 * @method int               incrby(string $key, int $increment)
 * @method string            incrbyfloat(string $key, int|float $increment)
 * @method array             mget(string[]|string $keyOrKeys, string ...$keys = null)
 * @method mixed             mset(array $dictionary)
 * @method int               msetnx(array $dictionary)
 * @method Status            psetex(string $key, $milliseconds, $value)
 * @method Status            set(string $key, $value, $expireResolution = null, $expireTTL = null, $flag = null)
 * @method int               setbit(string $key, $offset, $value)
 * @method Status            setex(string $key, $seconds, $value)
 * @method int               setnx(string $key, $value)
 * @method int               setrange(string $key, $offset, $value)
 * @method int               strlen(string $key)
 * @method int               hdel(string $key, array $fields)
 * @method int               hexists(string $key, string $field)
 * @method string|null       hget(string $key, string $field)
 * @method array             hgetall(string $key)
 * @method int               hincrby(string $key, string $field, int $increment)
 * @method string            hincrbyfloat(string $key, string $field, int|float $increment)
 * @method array             hkeys(string $key)
 * @method int               hlen(string $key)
 * @method array             hmget(string $key, array $fields)
 * @method mixed             hmset(string $key, array $dictionary)
 * @method array             hscan(string $key, $cursor, array $options = null)
 * @method int               hset(string $key, string $field, string $value)
 * @method int               hsetnx(string $key, string $field, string $value)
 * @method array             hvals(string $key)
 * @method int               hstrlen(string $key, string $field)
 * @method array|null        blpop(array|string $keys, int|float $timeout)
 * @method array|null        brpop(array|string $keys, int|float $timeout)
 * @method string|null       brpoplpush(string $source, string $destination, int|float $timeout)
 * @method string|null       lindex(string $key, int $index)
 * @method int               linsert(string $key, $whence, $pivot, $value)
 * @method int               llen(string $key)
 * @method string|null       lpop(string $key)
 * @method int               lpush(string $key, array $values)
 * @method int               lpushx(string $key, array $values)
 * @method string[]          lrange(string $key, int $start, int $stop)
 * @method int               lrem(string $key, int $count, string $value)
 * @method mixed             lset(string $key, int $index, string $value)
 * @method mixed             ltrim(string $key, int $start, int $stop)
 * @method string|null       rpop(string $key)
 * @method string|null       rpoplpush(string $source, string $destination)
 * @method int               rpush(string $key, array $values)
 * @method int               rpushx(string $key, array $values)
 * @method int               sadd(string $key, array $members)
 * @method int               scard(string $key)
 * @method string[]          sdiff(array|string $keys)
 * @method int               sdiffstore(string $destination, array|string $keys)
 * @method string[]          sinter(array|string $keys)
 * @method int               sinterstore(string $destination, array|string $keys)
 * @method int               sismember(string $key, string $member)
 * @method string[]          smembers(string $key)
 * @method int               smove(string $source, string $destination, string $member)
 * @method string|array|null spop(string $key, int $count = null)
 * @method string|null       srandmember(string $key, int $count = null)
 * @method int               srem(string $key, array|string $member)
 * @method array             sscan(string $key, int $cursor, array $options = null)
 * @method string[]          sunion(array|string $keys)
 * @method int               sunionstore(string $destination, array|string $keys)
 * @method int               touch(string[]|string $keyOrKeys, string ...$keys = null)
 * @method int               zadd(string $key, array $membersAndScoresDictionary)
 * @method int               zcard(string $key)
 * @method string            zcount(string $key, int|string $min, int|string $max)
 * @method string            zincrby(string $key, int $increment, string $member)
 * @method int               zinterstore(string $destination, array|string $keys, array $options = null)
 * @method array             zpopmin(string $key, int $count = 1)
 * @method array             zpopmax(string $key, int $count = 1)
 * @method array             zrange(string $key, int|string $start, int|string $stop, array $options = null)
 * @method array             zrangebyscore(string $key, int|string $min, int|string $max, array $options = null)
 * @method int|null          zrank(string $key, string $member)
 * @method int               zrem(string $key, string ...$member)
 * @method int               zremrangebyrank(string $key, int|string $start, int|string $stop)
 * @method int               zremrangebyscore(string $key, int|string $min, int|string $max)
 * @method array             zrevrange(string $key, int|string $start, int|string $stop, array $options = null)
 * @method array             zrevrangebyscore(string $key, int|string $max, int|string $min, array $options = null)
 * @method int|null          zrevrank(string $key, string $member)
 * @method int               zunionstore(string $destination, array|string $keys, array $options = null)
 * @method string|null       zscore(string $key, string $member)
 * @method array             zscan(string $key, int $cursor, array $options = null)
 * @method array             zrangebylex(string $key, string $start, string $stop, array $options = null)
 * @method array             zrevrangebylex(string $key, string $start, string $stop, array $options = null)
 * @method int               zremrangebylex(string $key, string $min, string $max)
 * @method int               zlexcount(string $key, string $min, string $max)
 * @method int               pfadd(string $key, array $elements)
 * @method mixed             pfmerge(string $destinationKey, array|string $sourceKeys)
 * @method int               pfcount(string[]|string $keyOrKeys, string ...$keys = null)
 * @method mixed             pubsub($subcommand, $argument)
 * @method int               publish($channel, $message)
 * @method mixed             discard()
 * @method array|null        exec()
 * @method mixed             multi()
 * @method mixed             unwatch()
 * @method mixed             watch(string $key)
 * @method mixed             eval(string $script, int $numkeys, string ...$keyOrArg = null)
 * @method mixed             evalsha(string $script, int $numkeys, string ...$keyOrArg = null)
 * @method mixed             script($subcommand, $argument = null)
 * @method mixed             auth(string $password)
 * @method string            echo(string $message)
 * @method mixed             ping(string $message = null)
 * @method mixed             select(int $database)
 * @method mixed             bgrewriteaof()
 * @method mixed             bgsave()
 * @method mixed             client($subcommand, $argument = null)
 * @method mixed             config($subcommand, $argument = null)
 * @method int               dbsize()
 * @method mixed             flushall()
 * @method mixed             flushdb()
 * @method array             info($section = null)
 * @method int               lastsave()
 * @method mixed             save()
 * @method mixed             slaveof(string $host, int $port)
 * @method mixed             slowlog($subcommand, $argument = null)
 * @method array             time()
 * @method array             command()
 * @method int               geoadd(string $key, $longitude, $latitude, $member)
 * @method array             geohash(string $key, array $members)
 * @method array             geopos(string $key, array $members)
 * @method string|null       geodist(string $key, $member1, $member2, $unit = null)
 * @method array             georadius(string $key, $longitude, $latitude, $radius, $unit, array $options = null)
 * @method array             georadiusbymember(string $key, $member, $radius, $unit, array $options = null)
 *
 * @author Daniele Alessandri <suppakilla@gmail.com>
 */
interface ClientInterface
{
    /**
     * Returns the command factory used by the client.
     *
     * @return FactoryInterface
     */
    public function getCommandFactory();

    /**
     * Returns the client options specified upon initialization.
     *
     * @return OptionsInterface
     */
    public function getOptions();

    /**
     * Opens the underlying connection to the server.
     */
    public function connect();

    /**
     * Closes the underlying connection from the server.
     */
    public function disconnect();

    /**
     * Returns the underlying connection instance.
     *
     * @return ConnectionInterface
     */
    public function getConnection();

    /**
     * Creates a new instance of the specified Redis command.
     *
     * @param string $method    Command ID.
     * @param array  $arguments Arguments for the command.
     *
     * @return CommandInterface
     */
    public function createCommand($method, $arguments = array());

    /**
     * Executes the specified Redis command.
     *
     * @param CommandInterface $command Command instance.
     *
     * @return mixed
     */
    public function executeCommand(CommandInterface $command);

    /**
     * Creates a Redis command with the specified arguments and sends a request
     * to the server.
     *
     * @param string $method    Command ID.
     * @param array  $arguments Arguments for the command.
     *
     * @return mixed
     */
    public function __call($method, $arguments);
}