<?php
namespace Illuminate\Database\Eloquent\Factories;
class Sequence
{
/**
* The sequence of return values.
*
* @var array
*/
protected $sequence;
/**
* The count of the sequence items.
*
* @var int
*/
protected $count;
/**
* The current index of the sequence.
*
* @var int
*/
protected $index = 0;
/**
* Create a new sequence instance.
*
* @param array $sequence
* @return void
*/
public function __construct(...$sequence)
{
$this->sequence = $sequence;
$this->count = count($sequence);
}
/**
* Get the next value in the sequence.
*
* @return mixed
*/
public function __invoke()
{
if ($this->index > ($this->count - 1)) {
$this->index = 0;
}
return tap($this->sequence[$this->index], function () {
$this->index = $this->index + 1;
});
}
}