<?php
namespace BetterMessages\RandomNameGenerator;

use BetterMessages\Randomizer\Randomizer;

/**
 * A generator that uses all of the other generators randomly.
 */
class All extends AbstractGenerator implements Generator
{
    /** @type array The other generators to use. */
    protected $_generators;

    /** @type \BetterMessages\Randomizer\Randomizer The random number generator. */
    protected $_randomizer;

    /**
     * Initializes the All Generator with the list of generators to choose from.
     *
     * @api
     * @param array $generators The random generators to use.
     * @param \BetterMessages\Randomizer\Randomizer $randomizer The random number generator.
     */
    public function __construct(array $generators, Randomizer $randomizer = null)
    {
        $this->_generators = $generators;
        $this->_randomizer = $randomizer;
    }

    /**
     * Constructs an All Generator using the default list of generators.
     *
     * @api
     * @param \BetterMessages\Randomizer\Randomizer $randomizer The random number generator.
     * @return \BetterMessages\RandomNameGenerator\All The constructed generator.
     */
    public static function create(Randomizer $randomizer = null)
    {
        return new self([new Alliteration($randomizer), new Vgng($randomizer)], $randomizer);
    }

    /**
     * Gets a randomly generated name using the configured generators.
     *
     * @api
     * @return string A random name.
     */
    public function getName()
    {
        return $this->_getRandomGenerator()->getName();
    }

    /**
     * Get a random generator from the list of generators.
     *
     * @return \BetterMessages\RandomNameGenerator\Generator A random generator.
     */
    protected function _getRandomGenerator()
    {
        return $this->_randomizer ? $this->_randomizer->getArrayValue($this->_generators) : $this->_generators[array_rand($this->_generators)];
    }
}
