<?php

namespace internship\controller;

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


class ArticleControllerTest extends TestCase {

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

    private int $category1Id;

    /**
     * @return void
     */
	function setUp(): void {
		GeneralTestEnv::tearDown();

		$tx = TestEnv::createTransaction();
        $category1 = InternshipTestEnv::setUpCategory('category1');
        $category2 = InternshipTestEnv::setUpCategory('category2');
		$article1 = InternshipTestEnv::setUpArticle('Title 1', 'Loren ipsum 1', $category1);
		$article2 = InternshipTestEnv::setUpArticle('Title 2', 'Loren ipsum 2', $category1);
		$article3 = InternshipTestEnv::setUpArticle('Title 3', 'Loren ipsum 3', $category2);
		$tx->commit();

		$this->article1Id = $article1->getId();
		$this->article2Id = $article2->getId();
		$this->article3Id = $article3->getId();

        $this->category1Id = $category1->getId();
	}

    /**
     * Get one article by id.
     *
     * @return void
     * @throws StatusException
     */
    function testGetDoArticle(): void {
        $responseJson = TestEnv::http()->newRequest()
            ->get(['api', 'article','1'])
            ->exec();

        $response = $responseJson->parseJson();
        $this->assertEquals('Title 1',$response['title']);
        $this->assertEquals('Loren ipsum 1',$response['text']);
        $this->assertEquals('category1',$response['categoryName']);
    }

    /**
     * @return void
     * @throws StatusException
     */
    function testGetDoArticleExpectExceptionBecauseWrongArticleID(): void {

        $this->expectException(PageNotFoundException::class);
        $responseJson = TestEnv::http()->newRequest()
            ->get(['api', 'article','15'])
            ->exec();
    }

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

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

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

    /**
     * Exception because category does not exist
     *
     * @return void
     * @throws StatusException
     */
    function testGetDoArticlesExpectExceptionBecauseWrongCategoryName(): void {
        $this->expectException(PageNotFoundException::class);

        TestEnv::http()->newRequest()
            ->get(['api', 'articles','category3'])
            ->exec();
    }

    /**
     * @return void
     * @throws StatusException
     */
    function testPostDoArticle(): void {
        $responseJson = TestEnv::http()->newRequest()
            ->post(['api', 'article'])
            ->bodyJson(['categoryId' => 1, 'title' => 'All the Travel',
                    'text' => 'hello world'])
            ->exec();
        $article =  $responseJson->parseJson();
        $this->assertEquals('All the Travel', $article['title']);

        $transaction = TestEnv::createTransaction(true);
        $correctArticle = TestEnv::tem()->find(Article::class,4);
        $this->assertEquals('All the Travel', $correctArticle->getTitle());
        $transaction->commit();
    }

    /**
     * When osting an {@see Article} without text, the text should be set to ''.
     *
     * @throws StatusException
     */
    function testPostDoArticleWithoutText() {
        $response = TestEnv::http()->newRequest()
            ->post(['api','article'])
            ->body('{"categoryId": 1, "title": "All the Travel"}')
            ->exec();


        $this->assertEquals('200',$response->getStatus());
        $transaction = TestEnv::createTransaction(true);
        $article = TestEnv::tem()->find(Article::class,4);
        $transaction->commit();
        $this->assertEquals('',$article->getText());
    }

    /**
     * @throws StatusException
     */
    function testPostDoArticleExpectExceptionBecauseCategoryDoesNotExist() {
        $this->expectException(BadRequestException::class);
        TestEnv::http()->newRequest()
            ->post(['api','article'])
            ->body('{"categoryId": 3, "title": "All the Travel", "text": "hello world"}')
            ->exec();
    }

    /**
     * Test: update the name of $article3. Then check if the name no longer matches the old one.
     *
     * @return void
     * @throws StatusException
     */
    function testPutDoArticle(): void {
        $response = TestEnv::http()->newRequest()
            ->put(['api', 'article','3'])
            ->bodyJson(['categoryId' => $this->category1Id , 'title'=> 'New Title','text'=>'Hello'])
            ->exec();

        $articleJson = $response->parseJson();
        $this->assertEquals('New Title', $articleJson['title']);
        $this->assertEquals('Hello', $articleJson['text']);
        $this->assertEquals('category1', $articleJson['categoryName']);


        $tx = TestEnv::createTransaction(true);
        $article = TestEnv::tem()->find(Article::class, 3);
        $this->assertEquals(3, TestEnv::temUtil()->count(Article::class));
        $this->assertEquals('New Title', $article->getTitle());
        $this->assertEquals(3, $article->getId());
        $tx->commit();

    }

    /**
     * @return void
     * @throws StatusException
     */
    function testPutDoArticleExpectExceptionBecauseWrongArticleId(): void {
        $this->expectException(PageNotFoundException::class);
        $response = TestEnv::http()->newRequest()
                ->put(['api', 'article','15'])
                ->bodyJson(['categoryId'=> $this->category1Id , 'title'=> 'New Title','text'=>'Hello'])
                ->exec();
    }

    /**
     * @return void
     * @throws StatusException
     */
    function testPutDoArticleExpectExceptionBecauseWrongCategoryId(): void {
        $this->expectException(PageNotFoundException::class);
        $response = TestEnv::http()->newRequest()
                ->put(['api', 'article','3'])
                ->bodyJson(['categoryId'=> 15 , 'title'=> 'New Title','text'=>'Hello'])
                ->exec();
    }

    /**
     * @return void
     * @throws StatusException
     */
    function testPutDoArticleExpectExceptionBecauseNoCategoryId(): void {
        $this->expectException(StatusException::class);
//        $this->expectExceptionCode('0');
        $this->expectExceptionMessage('Missing property: categoryId');
        $response = TestEnv::http()->newRequest()
                ->put(['api', 'article','3'])
                ->bodyJson(['title'=> 'New Title','text'=>'Hello'])
                ->exec();
    }

    /**
     * Delete $article3 then check if article count is 2.
     *
     * @return void
     * @throws StatusException
     */
    function testDeleteDoArticles () {
        $response = TestEnv::http()->newRequest()
                ->delete(['api','article','3'])
                ->exec();
        $this->assertEquals(200,$response->getStatus());
        $transaction = TestEnv::createTransaction(true);
        $this->assertEquals(2, TestEnv::temUtil()->count(Article::class));
        $this->assertEquals(null, TestEnv::tem()->find(Article::class,3));
        $transaction->commit();
    }

    /**
     * Delete request with an articleId that does not exist
     *
     * @throws StatusException
     */
    function testDeleteDoArticlesExpectExceptionBecauseWrongArticleId () {

        $this->expectException(PageNotFoundException::class);
        TestEnv::http()->newRequest()
				->delete(['api','article','15'])
				->exec();

    }

}