<?php

namespace Illuminate\Validation;

use Closure;
use Illuminate\Support\Str;
use Illuminate\Contracts\Container\Container;
use Symfony\Component\Translation\TranslatorInterface;
use Illuminate\Contracts\Validation\Factory as FactoryContract;
// more Str
class Factory implements FactoryContract
{// Class Factory implements FactoryContract
/**
* The Translator implementation.
*
* @var \Symfony\Component\Translation\TranslatorInterface
*/
protected $translator;//The Translator implementation.

/**
* The Presence Verifier implementation.
*
* @var \Illuminate\Validation\PresenceVerifierInterface
*/
protected $verifier;// The Presence Verifier implementation

/**
* The IoC container instance.
*
* @var \Illuminate\Contracts\Container\Container
*/
protected $container;//The IoC container instance

/**
* All of the custom validator extensions.
*
* @var array
*/
protected $extensions = [];//All of the custom validator extensions
// no time is out


/**
* All of the custom implicit validator extensions.
*
* @var array
*/
protected $implicitExtensions = [];//All of the custom implicit validator extensions

/**
* All of the custom validator message replacers.
*
* @var array
*/
protected $replacers = [];//All of the custom validator message replacers.

/**
* All of the fallback messages for custom rules.
*
* @var array
*/
protected $fallbackMessages = [];//All of the fallback messages for custom rules.

/**
* The Validator resolver instance.
*
* @var Closure
*/
protected $resolver;// The Validator resolver instance.

/**
* Create a new Validator factory instance.
*
* @param \Symfony\Component\Translation\TranslatorInterface $translator
* @param \Illuminate\Contracts\Container\Container $container
* @return void
*/
public function __construct(TranslatorInterface $translator, Container $container = null)
{
$this->container = $container;// Get container set
$this->translator = $translator;//translator set
}// Create a new Validator factory instance.

/**
* Create a new Validator instance.
*
* @param array $data
* @param array $rules
* @param array $messages
* @param array $customAttributes
* @return \Illuminate\Validation\Validator
*/
public function make(array $data, array $rules, array $messages = [], array $customAttributes = [])
{// make data rules messages customAttributes
// The presence verifier is responsible for checking the unique and exists data
// for the validator. It is behind an interface so that multiple versions of
// it may be written besides database. We'll inject it into the validator.
$validator = $this->resolve($data, $rules, $messages, $customAttributes);
// The presence verifier is responsible for checking the unique and exists data
// for the validator.It is behind an interface so that multiple versions of it
// may be written besides database. We'll inject it into the validator.

// what ever ,get a unique value.

if (! is_null($this->verifier)) {
$validator->setPresenceVerifier($this->verifier);
}// if it is not null

// Next we'll set the IoC container instance of the validator, which is used to
// resolve out class based validator extensions. If it is not set then these
// types of extensions will not be possible on these validation instances.
if (! is_null($this->container)) {
$validator->setContainer($this->container);
}//Next we'll set the IoC container instance of the validator, which is used to
// resolve out class based validator extensions. If it is not set then these
// types of extensions will not be possible on these validation instances.

$this->addExtensions($validator);//add Extensions.

return $validator;//return validator
}// make in this create a new validator instance

/**
* Add the extensions to a validator instance.
*
* @param \Illuminate\Validation\Validator $validator
* @return void
*/
protected function addExtensions(Validator $validator)
{// Add the extensions to a validator instance
$validator->addExtensions($this->extensions);//use this validator to add extensions

// Next, we will add the implicit extensions, which are similar to the required
// and accepted rule in that they are run even if the attributes is not in a
// array of data that is given to a validator instances via instantiation.
$implicit = $this->implicitExtensions;// get the implicit extension

$validator->addImplicitExtensions($implicit);// add Implicit Extensions

$validator->addReplacers($this->replacers);// add Replacers

$validator->setFallbackMessages($this->fallbackMessages);// set fall back messages
}

/**
* Resolve a new Validator instance.
*
* @param array $data
* @param array $rules
* @param array $messages
* @param array $customAttributes
* @return \Illuminate\Validation\Validator
*/
protected function resolve(array $data, array $rules, array $messages, array $customAttributes)
{// set this resolve parameters
if (is_null($this->resolver)) {
return new Validator($this->translator, $data, $rules, $messages, $customAttributes);
}//determine null
// return a new Validator
// call_user_func
return call_user_func($this->resolver, $this->translator, $data, $rules, $messages, $customAttributes);
}// Resolve a new Validator instance.

/**
* Register a custom validator extension.
*
* @param string $rule
* @param \Closure|string $extension
* @param string $message
* @return void
*/
public function extend($rule, $extension, $message = null)
{
$this->extensions[$rule] = $extension;// key is rules, value is the extension

if ($message) {
$this->fallbackMessages[Str::snake($rule)] = $message;
}// if has messages fallback Messages
}//Register a extend

/**
* Register a custom implicit validator extension.
*
* @param string $rule
* @param \Closure|string $extension
* @param string $message
* @return void
*/
public function extendImplicit($rule, $extension, $message = null)
{
$this->implicitExtensions[$rule] = $extension;// implicit Extensions

if ($message) {// message
$this->fallbackMessages[Str::snake($rule)] = $message;
}// fallback Messages
}// Register a custom implicit validator extension

/**
* Register a custom implicit validator message replacer.
*
* @param string $rule
* @param \Closure|string $replacer
* @return void
*/
public function replacer($rule, $replacer)
{
$this->replacers[$rule] = $replacer;// set the replacer array use key and value
}//Register a custom implicit validator message replacer.

/**
* Set the Validator instance resolver.
*
* @param \Closure $resolver
* @return void
*/
public function resolver(Closure $resolver)
{
$this->resolver = $resolver;
}// set the resolver

/**
* Get the Translator implementation.
*
* @return \Symfony\Component\Translation\TranslatorInterface
*/
public function getTranslator()
{
return $this->translator;
}// get Translator

/**
* Get the Presence Verifier implementation.
*
* @return \Illuminate\Validation\PresenceVerifierInterface
*/
public function getPresenceVerifier()
{
return $this->verifier;
}// get Presenceverifier

/**
* Set the Presence Verifier implementation.
*
* @param \Illuminate\Validation\PresenceVerifierInterface $presenceVerifier
* @return void
*/
public function setPresenceVerifier(PresenceVerifierInterface $presenceVerifier)
{
$this->verifier = $presenceVerifier;
}// big set
}