PHP Challenge

index.php

<?php

/**
 * Author class
 */
class Author {

	protected $name;
	protected $email;

	/**
	 * This will allow us to set name and email of author.
	 * @param [string] $name  [name of author]
	 * @param [string] $email [email of author]
	 */
	public function __construct($name, $email)
	{
		$this->name = $name;
		$this->email = $email;
	}

	/**
	 * get name of author.
	 * @return [string]
	 */
	public function getName()
	{
		return $this->name;
	}

	/**
	 * get email of author.
	 * @return [string]
	 */
	public function getEmail()
	{
		return $this->email;
	}

}

/**
 *  Article 
 */
class Article implements JsonSerializable {

    protected $title;
    protected $body;
    protected $status;

    /**
     * Author property
     * @var [object]
     */
   	protected $author;

   	/**
   	 * Gets Author Object
   	 * @param  Author $author 
   	 * @return object
   	 */
   	public function getAuthor()
   	{
   		$this->author = $author;
   	}

    /**
     * Gets the title
     *
     * @return string
     */
    public function getTitle()
    {
        return $this->title;
    }
    /**
     * Gets the body
     *
     * @return string
     */
    public function getBody()
    {
        return $this->body;	
    }
    /**
     * Gets the status
     *
     * @return string
     */
    public function getStatus()
    {
        return $this->status;
    }
    /**
     * Sets the title parameter
     *
     * @param string $title The article title
     *
     * @return void
     */
    public function setTitle(String $title)
    {
        $this->title = $title;
    }

    /**
     * Sets the body parameter
     *
     * @param string $body The article body
     *
     * @return void
     */
    public function setBody(String $body)
    {
        $this->body = $body;
    }
    
   	/**
   	 * Set Author Object
   	 * @param Author $author
   	 *
   	 * @return void
   	 */
   	public function setAuthor(Author $author)
   	{
   		$this->author = $author;
   	}

   	/**
   	 * Sets Status.
   	 * @param String $status
   	 */
   	public function setStatus(String $status) 
   	{
   		$this->status = $status;
   	}

   	/**
   	 * checks if property is set.
   	 * @param  [string] $property [description]
   	 * 
   	 * @throws LogicException | RuntimeException
   	 * 
   	 * @return void
   	 */
   	public function checkIfSet(String $property)
   	{
   		if(!property_exists($this, $property)) {
   			throw new LogicException("Property <b>$$property<b> is not found in class: <b>Article</b>", 1);
   		}

   		/**
   		 * check if method set
   		 */
   		if(!isset($this->$property)) {
   			throw new LogicException("Property <b>$$property</b> is not set!", 1);
   		}
   	}

    /**
     * Validate the object.
     *
     * Ensure that the title, body, status, and author have been set.
     * Ensure that the title is not longer than 80 characters.
     * Ensure that the body has no HTML tags.
     * Ensure that the status is either 'Active' or 'Inactive'.
     *
     * If any assertions fail, a LogicException will be thrown with
     * appropriate messages.
     *
     * @throws LogicException
     *
     * @return void
     */
    public function validate()
    {
    	/**
    	 * title validation.
    	 */
    	$this->checkIfSet('title');

        if (strlen($this->title) >= 80) {
        	throw new LogicException('Property <b>$title</b> Should be less than 80 characters.', 1);
        }

        /**
         * Body Validation
         */
        $this->checkIfSet('body');
        // strip body
        $body = strlen(strip_tags($this->body));
        if(strlen($this->body) !=  $body) {
        	throw new LogicException('Property <b>$Body</b> Should not contains HTML.', 1);
        }

        /**
         * Status Validation.
         */
        $this->checkIfSet('status');

        if ($this->status !== 'Active' && $this->status !== 'Inactive'):
        	throw new LogicException('Property <b>$status</b> Must Active or Inactive.', 1);
        endif;

        /**
         * check if author object is set.
         */
        $this->checkIfSet('author');
    }

    /**
     * Json interface method
     */
    
    public function jsonSerialize() {

    	/**
    	 * valiate it 
    	 */
    	$this->validate();

    	$data = [
    		'author_name' => $this->author->getName(),
    		'title' => $this->getTitle(),
    		'body' => $this->getBody()
    	];

    	return json_encode($data);
    }

    /**
     * get data according to written in challenge.
     * @return String Json
     */
    public function get_data() {
    	/**
    	 * set Json Header
    	 */
    	header('Content-type: application/json');
    	return $this->jsonSerialize();
    }

    /**
     * Not Good Pratice but seems OK.
     * @return string json
     */
    public function __toString()
    {
    	return $this->get_data();
    }
}

$article = new Article();
$article->setTitle('This is title');
$article->setBody('This is Body');
$article->setStatus('Inactive');

$author = new Author('AAAAAAAAAAAAAA', '[email protected]');
$article->setAuthor($author);

echo $article; // or $article->get_data();