<?php
namespace Illuminate\Support;
use Countable;
use JsonSerializable;
use Illuminate\Contracts\Support\Jsonable;
use Illuminate\Contracts\Support\Arrayable;
use Illuminate\Contracts\Support\MessageProvider;
use Illuminate\Contracts\Support\MessageBag as MessageBagContract;
class MessageBag implements Arrayable, Countable, Jsonable, JsonSerializable, MessageBagContract, MessageProvider
{
/**
* All of the registered messages.
*
* @var array
*/
protected $messages = [];
/**
* Default format for message output.
*
* @var string
*/
protected $format = ':message';
/**
* Create a new message bag instance.
*
* @param array $messages
* @return void
*/
public function __construct(array $messages = [])
{
foreach ($messages as $key => $value) {
$value = $value instanceof Arrayable ? $value->toArray() : (array) $value;
$this->messages[$key] = array_unique($value);
}
}
/**
* Get the keys present in the message bag.
*
* @return array
*/
public function keys()
{
return array_keys($this->messages);
}
/**
* Add a message to the bag.
*
* @param string $key
* @param string $message
* @return $this
*/
public function add($key, $message)
{
if ($this->isUnique($key, $message)) {
$this->messages[$key][] = $message;
}
return $this;
}
/**
* Determine if a key and message combination already exists.
*
* @param string $key
* @param string $message
* @return bool
*/
protected function isUnique($key, $message)
{
$messages = (array) $this->messages;
return ! isset($messages[$key]) || ! in_array($message, $messages[$key]);
}
/**
* Merge a new array of messages into the bag.
*
* @param \Illuminate\Contracts\Support\MessageProvider|array $messages
* @return $this
*/
public function merge($messages)
{
if ($messages instanceof MessageProvider) {
$messages = $messages->getMessageBag()->getMessages();
}
$this->messages = array_merge_recursive($this->messages, $messages);
return $this;
}
/**
* Determine if messages exist for all of the given keys.
*
* @param array|string $key
* @return bool
*/
public function has($key)
{
if (is_null($key)) {
return $this->any();
}
$keys = is_array($key) ? $key : func_get_args();
foreach ($keys as $key) {
if ($this->first($key) === '') {
return false;
}
}
return true;
}
/**
* Determine if messages exist for any of the given keys.
*
* @param array|string $keys
* @return bool
*/
public function hasAny($keys = [])
{
$keys = is_array($keys) ? $keys : func_get_args();
foreach ($keys as $key) {
if ($this->has($key)) {
return true;
}
}
return false;
}
/**
* Get the first message from the bag for a given key.
*
* @param string $key
* @param string $format
* @return string
*/
public function first($key = null, $format = null)
{
$messages = is_null($key) ? $this->all($format) : $this->get($key, $format);
$firstMessage = Arr::first($messages, null, '');
return is_array($firstMessage) ? Arr::first($firstMessage) : $firstMessage;
}
/**
* Get all of the messages from the bag for a given key.
*
* @param string $key
* @param string $format
* @return array
*/
public function get($key, $format = null)
{
// If the message exists in the container, we will transform it and return
// the message. Otherwise, we'll check if the key is implicit & collect
// all the messages that match a given key and output it as an array.
if (array_key_exists($key, $this->messages)) {
return $this->transform(
$this->messages[$key], $this->checkFormat($format), $key
);
}
if (Str::contains($key, '*')) {
return $this->getMessagesForWildcardKey($key, $format);
}
return [];
}
/**
* Get the messages for a wildcard key.
*
* @param string $key
* @param string|null $format
* @return array
*/
protected function getMessagesForWildcardKey($key, $format)
{
return collect($this->messages)
->filter(function ($messages, $messageKey) use ($key) {
return Str::is($key, $messageKey);
})
->map(function ($messages, $messageKey) use ($format) {
return $this->transform(
$messages, $this->checkFormat($format), $messageKey
);
})->all();
}
/**
* Get all of the messages for every key in the bag.
*
* @param string $format
* @return array
*/
public function all($format = null)
{
$format = $this->checkFormat($format);
$all = [];
foreach ($this->messages as $key => $messages) {
$all = array_merge($all, $this->transform($messages, $format, $key));
}
return $all;
}
/**
* Get all of the unique messages for every key in the bag.
*
* @param string $format
* @return array
*/
public function unique($format = null)
{
return array_unique($this->all($format));
}
/**
* Format an array of messages.
*
* @param array $messages
* @param string $format
* @param string $messageKey
* @return array
*/
protected function transform($messages, $format, $messageKey)
{
return collect((array) $messages)
->map(function ($message) use ($format, $messageKey) {
// We will simply spin through the given messages and transform each one
// replacing the :message place holder with the real message allowing
// the messages to be easily formatted to each developer's desires.
return str_replace([':message', ':key'], [$message, $messageKey], $format);
})->all();
}
/**
* Get the appropriate format based on the given format.
*
* @param string $format
* @return string
*/
protected function checkFormat($format)
{
return $format ?: $this->format;
}
/**
* Get the raw messages in the container.
*
* @return array
*/
public function messages()
{
return $this->messages;
}
/**
* Get the raw messages in the container.
*
* @return array
*/
public function getMessages()
{
return $this->messages();
}
/**
* Get the messages for the instance.
*
* @return \Illuminate\Support\MessageBag
*/
public function getMessageBag()
{
return $this;
}
/**
* Get the default message format.
*
* @return string
*/
public function getFormat()
{
return $this->format;
}
/**
* Set the default message format.
*
* @param string $format
* @return \Illuminate\Support\MessageBag
*/
public function setFormat($format = ':message')
{
$this->format = $format;
return $this;
}
/**
* Determine if the message bag has any messages.
*
* @return bool
*/
public function isEmpty()
{
return ! $this->any();
}
/**
* Determine if the message bag has any messages.
*
* @return bool
*/
public function isNotEmpty()
{
return $this->any();
}
/**
* Determine if the message bag has any messages.
*
* @return bool
*/
public function any()
{
return $this->count() > 0;
}
/**
* Get the number of messages in the container.
*
* @return int
*/
public function count()
{
return count($this->messages, COUNT_RECURSIVE) - count($this->messages);
}
/**
* Get the instance as an array.
*
* @return array
*/
public function toArray()
{
return $this->getMessages();
}
/**
* Convert the object into something JSON serializable.
*
* @return array
*/
public function jsonSerialize()
{
return $this->toArray();
}
/**
* Convert the object to its JSON representation.
*
* @param int $options
* @return string
*/
public function toJson($options = 0)
{
return json_encode($this->jsonSerialize(), $options);
}
/**
* Convert the message bag to its string representation.
*
* @return string
*/
public function __toString()
{
return $this->toJson();
}
}