<?php

class ArticleIdentification extends Article, Identification
{
}


class ArticleIdIdentification implements ArticleIdentification
{
	function __construct($num)
	{}

	function getIdentKey()
	{}

}


class ArticleSlugIdentification implements ArticleIdentification
{
	function __construct($str)
	{}

	function getIdentKey()
	{}

}


class ArticleNew implements Article
{
	function __construct($name, $content, User $author)
	{}

	function getName()
	{}

	function getContent()
	{}

	function getAuthor()
	{}
}



class ArticleEntry implements Article
{
	function __construct(ArticleIdentification $id, $name, $content, User $author)
	{}

	function getId()
	{}

	function getName()
	{}

	function getContent()
	{}

	function getAuthor()
	{}
}


class ArticleCreateService
{
	function __construct(AclReader $acl, ArticleCreatePersistence $articleCreate, Majler $mail)
	{}



	function doPersist(ArticleNew $article)
	{
		$acl = $this->acl->read($article->getAuthor());
		$acl->assert('create-article');

		$entry = $this->articleCreate->doPersist($article);

		$this->mailer->sendMail($entry);
		return $entry;
	}

}



class ArticleCreateDatebase implements ArticleCreatePersistence
{
	function __construct(DBContext $db)
	{}



	function doPersist(ArticleNew $article)
	{
		$id = $this->db->insert([
			'name' => $article->getName(),
			'content' => $article->getContent(),
			'id_author' => $article->getAuthor()->getId(),
			]);
		return new ArticleEntry(new ArticleIdentification($id), $name, $content, $article->getAuthor());
	}

}



class ArticleRemoveDatebase implements ArticleRemovePersistence
{
	function __construct(DBContext $db)
	{}

	function doRemove(Article $article)
	{
		switch (True) {
			case $article instanceof ArticleEntry:
				$id = $article->getId();
				break;
			case $article instanceof ArticleIdentification:
				$id = $article;
				break;
			default:
				throw new LogicException('...');
		}
		$this->fetch($id);
	}

	private function fetch(ArticleIdentification $id)
	{
		switch (True) {
			case $id instanceof ArticleSlugIdentification:
				$this->db->delete()->where('slug', $id->getIdentKey());
				break;
			case $id instanceof ArticleIdIdentification:
				$this->db->delete()->where('id', $id->getIdentKey());
				break;
			default:
				throw new LogicException('...');
		}
	}

}