<?php
/*

<  * Copyright 2015-2017 MongoDB, Inc.



>  * Copyright 2015-present MongoDB, Inc.


 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *

<  *   http://www.apache.org/licenses/LICENSE-2.0



>  *   https://www.apache.org/licenses/LICENSE-2.0


 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace MongoDB\Model;

use function current;
use function key;
use function next;
use function reset;

/**
 * DatabaseInfoIterator for inline listDatabases command results.
 *
 * This iterator may be used to wrap the array returned within the listDatabases
 * command's single-document result.
 *
 * @internal
 * @see \MongoDB\Client::listDatabases()

<  * @see http://docs.mongodb.org/manual/reference/command/listDatabases/



>  * @see https://mongodb.com/docs/manual/reference/command/listDatabases/


 */
class DatabaseInfoLegacyIterator implements DatabaseInfoIterator
{
    /** @var array */
    private $databases;


<     /**
<      * @param array $databases
<      */


    public function __construct(array $databases)
    {
        $this->databases = $databases;
    }

    /**
     * Return the current element as a DatabaseInfo instance.
     *
     * @see DatabaseInfoIterator::current()

<      * @see http://php.net/iterator.current
<      * @return DatabaseInfo



>      * @see https://php.net/iterator.current


     */

<     public function current()



>     public function current(): DatabaseInfo


    {
        return new DatabaseInfo(current($this->databases));
    }

    /**
     * Return the key of the current element.
     *

<      * @see http://php.net/iterator.key
<      * @return integer



>      * @see https://php.net/iterator.key


     */

<     public function key()



>     public function key(): int


    {
        return key($this->databases);
    }

    /**
     * Move forward to next element.
     *

<      * @see http://php.net/iterator.next



>      * @see https://php.net/iterator.next


     */

<     public function next()



>     public function next(): void


    {
        next($this->databases);
    }

    /**
     * Rewind the Iterator to the first element.
     *

<      * @see http://php.net/iterator.rewind



>      * @see https://php.net/iterator.rewind


     */

<     public function rewind()



>     public function rewind(): void


    {
        reset($this->databases);
    }

    /**
     * Checks if current position is valid.
     *

<      * @see http://php.net/iterator.valid
<      * @return boolean



>      * @see https://php.net/iterator.valid


     */

<     public function valid()



>     public function valid(): bool


    {
        return key($this->databases) !== null;
    }
}