<?php

namespace internship\controller;

use PHPUnit\Framework\TestCase;
use n2n\test\TestEnv;
use internship\test\ArticleTestEnv;
use util\GeneralTestEnv;
use n2n\web\http\StatusException;
use n2n\web\http\PageNotFoundException;
use internship\bo\Article;
use n2n\web\http\BadRequestException;
use ArrayObject;
use internship\bo\Category;


class ArticleControllerTest extends TestCase {

	private int $article1Id;
	private int $article2Id;
	private int $article3Id;

	function setUp(): void {
		GeneralTestEnv::tearDown();

		$tx = TestEnv::createTransaction();
		$article1 = ArticleTestEnv::setUpArticle('Title 3', 'Lorem ipsum 3', 'teaser');
		$article2 = ArticleTestEnv::setUpArticle('Title 2', categoryName: 'news');
		$article3 = ArticleTestEnv::setUpArticle('Title 1', categoryName: 'news');
		$cat = new Category();
		$cat->name = 'Category 1';
		$cat->articles = new ArrayObject([$article1, $article2]);
		$article1->categories = new ArrayObject([$cat]);
		$article3->categories = new ArrayObject([$cat]);
		//$article4 = ArticleTestEnv::setUpArticle('Title 4');
		//var_dump($article4);
		$tx->commit();

		$this->article1Id = $article1->id;
		$this->article2Id = $article2->id;
		$this->article3Id = $article3->id;
	}

	/**
	 * @throws StatusException
	 */
	function testGetDoArticles() {
		$response = TestEnv::http()->newRequest()
				->get(['api', 'articles'])
				->exec();

		$articleStructs = $response->parseJson();
		$this->assertCount(3, $articleStructs);

		$this->assertEquals('Title 1', $articleStructs[0]['title']);
		$this->assertEquals('Title 2', $articleStructs[1]['title']);
		$this->assertEquals('Title 3', $articleStructs[2]['title']);
	}

	/**
	 * @throws StatusException
	 */
	function testGetDoArticlesByCategoryName() {
		$response = TestEnv::http()->newRequest()
				->get(['api', 'articles', 'news'])
				->exec();

	   $articleStructs = $response->parseJson();
	   $this->assertCount(2, $articleStructs);
    }

	/**
	 * @throws StatusException
	 */
	function testGetArticle() {
        $response = TestEnv::http()->newRequest()
                    ->get(['api', 'article', $this->article3Id])
                    ->exec();

		$articleStructs = $response->parseJson();

        $this->assertEquals('Title 1', $articleStructs['title']);
    }

	/**
	 * @throws StatusException
	 */
	function testGetArticleNotFound() {
		$this->expectException(PageNotFoundException::class);

		$response = TestEnv::http()->newRequest()
				->get(['api', 'article', 1000])
				->exec();
	}

    /**
     * @throws StatusException
     */
    function testPostDoArticle() {
        $tx = TestEnv::createTransaction(true);
        $this->assertSame(3, TestEnv::temUtil()->count(Article::class));
		$tx->commit();

        $response = TestEnv::http()->newRequest()
				->post(['api', 'article'])
				->bodyJson([
					'title' => 'Title POST',
					'text' => 'Text POST',
					'categoryName' => 'sport'
				])
				->exec();

        $articleStruct = $response->parseJson();
        $this->assertEquals('Title POST', $articleStruct['title']);
		$id = $articleStruct['id'];

		$tx = TestEnv::createTransaction(true);
		$this->assertSame(4, TestEnv::temUtil()->count(Article::class));

		$article = TestEnv::tem()->find(Article::class, $id);
		$this->assertSame('Title POST', $article->title);
		$tx->commit();

    }

	/**
	 * @throws StatusException
	 */
	function testPutDoArticle() {
		$tx = TestEnv::createTransaction(true);
		$this->assertSame(3, TestEnv::temUtil()->count(Article::class));
		$article = TestEnv::tem()->find(Article::class, $this->article1Id);
		$this->assertSame('Title 3', $article->title);
		$this->assertSame('Lorem ipsum 3', $article->text);
		$tx->commit();

		$response = TestEnv::http()->newRequest()
				->put(['api', 'article', $this->article1Id])
				->bodyJson([
						'title' => 'Title PUT',
						'text' => 'Text PUT',
						'categoryName' => 'sport',
				])
				->exec();

		$articleStruct = $response->parseJson();
		$this->assertEquals('Title PUT', $articleStruct['title']);

		$tx = TestEnv::createTransaction(true);
		$this->assertSame(3, TestEnv::temUtil()->count(Article::class));

		$article = TestEnv::tem()->find(Article::class, $this->article1Id);
		$this->assertSame('Title PUT', $article->title);

		$this->assertSame('Text PUT', $article->text);

		$tx->commit();
	}

	/**
	 * @throws StatusException
	 * check {@link ArticleApiController::isValidArticleCategory} violation
	 */
	function testPutDoArticleExpectExceptionBecauseOfInvalidCategoryName() {
		$tx = TestEnv::createTransaction(true);
		$categoryName = TestEnv::tem()->find(Article::class, $this->article1Id)->categoryName;
		$tx->commit();

		// only certain CategoryNames are allowed; in setup category restrictions are not checked.
		$this->expectException(BadRequestException::class);
		TestEnv::http()->newRequest()
				->put(['api', 'article', $this->article1Id])
				->bodyJson([
						'title' => 'Title PUT',
						'text' => 'Text PUT',
						'categoryName' => $categoryName,
				])
				->exec();
	}

	/**
	 * @throws StatusException
	 */
	function testDeleteDoArticle() {

		$tx = TestEnv::createTransaction(true);
		$this->assertSame(3, TestEnv::temUtil()->count(Article::class));
		$this->assertSame(1, TestEnv::temUtil()->count(Category::class));
		$tx->commit();

        TestEnv::http()->newRequest()
            ->delete(['api', 'article', $this->article1Id])
            ->exec();

		$tx = TestEnv::createTransaction(true);
        $this->assertSame(2, TestEnv::temUtil()->count(Article::class));
		$this->assertSame(1, TestEnv::temUtil()->count(Category::class));
		$tx->commit();
    }

	function testDeleteCat() {

		$tx = TestEnv::createTransaction(true);
		$this->assertSame(3, TestEnv::temUtil()->count(Article::class));
		$this->assertSame(1, TestEnv::temUtil()->count(Category::class));
		$tx->commit();

		$tx = TestEnv::createTransaction();
		$cat = TestEnv::tem()->find(Category::class, 1);
        TestEnv::tem()->remove($cat);
		$tx->commit();

		$tx = TestEnv::createTransaction(true);
        $this->assertSame(3, TestEnv::temUtil()->count(Article::class));
		$this->assertSame(0, TestEnv::temUtil()->count(Category::class));
		$tx->commit();
    }

}