<?php

namespace Illuminate\Validation;

use Illuminate\Support\ServiceProvider;
use Illuminate\Contracts\Support\DeferrableProvider;
class ValidationServiceProvider extends ServiceProvider implements DeferrableProvider
{
    /**
     * Register the service provider.
     *
     * @return void
     */
    public function register()
    {
        $this->registerPresenceVerifier();
        $this->registerValidationFactory();
    }
    /**
     * Register the validation factory.
     *
     * @return void
     */
    protected function registerValidationFactory()
    {
        $this->app->singleton('validator', function ($app) {
            $validator = new \Illuminate\Validation\Factory($app['translator'], $app);
            // The validation presence verifier is responsible for determining the existence of
            // values in a given data collection which is typically a relational database or
            // other persistent data stores. It is used to check for "uniqueness" as well.
            if (isset($app['db'], $app['validation.presence'])) {
                $validator->setPresenceVerifier($app['validation.presence']);
            }
            return $validator;
        });
    }
    /**
     * Register the database presence verifier.
     *
     * @return void
     */
    protected function registerPresenceVerifier()
    {
        $this->app->singleton('validation.presence', function ($app) {
            return new \Illuminate\Validation\DatabasePresenceVerifier($app['db']);
        });
    }
    /**
     * Get the services provided by the provider.
     *
     * @return array
     */
    public function provides()
    {
        return ['validator', 'validation.presence'];
    }
}
