<?php

class TemplatePageTest extends PHPUnit_Framework_TestCase
{
	private $testObj;
	private $twig;
	private $offerRetriever;

	public function setUp()
	{
		$this->twig = $this->getMockBuilder('TwigWrapper')
			->disableOriginalConstructor()
			->getMock();
		
		$this->offerRetriever = $this->getMockBuilder('OfferRetriever')
			->disableOriginalConstructor()
			->getMock();
		
		$this->testObj = new TemplatePage($this->twig, $this->offerRetriever);
	}

	public function tearDown()
	{
		unset($_GET['id']);
		unset($_GET['page']);
	}

	public function testDisplayOutputsDefaultPage()
	{
		$pageId = 0;
		$offerId = TestUtils::getRandomInteger();
		$_GET['id'] = $offerId;
		
		$templateFilename = TestUtils::getRandomString(10);
		
		$pageData = array('filename' => $templateFilename);
		$expected = TestUtils::getRandomString(20);
		
		$this->offerRetriever->method('getPageData')
			->with($offerId, $pageId)
			->willReturn($pageData);
		
		$this->twig->expects($this->once())
			->method('render')
			->with($templateFilename, $pageData)
			->willReturn($expected);
		
		$actual = $this->testObj->display();
		$this->assertEquals($expected, $actual);
	}

	public function testDisplayOutputsAnErrorIfTemplateNotFound()
	{
		$templateRequested = "templateDoesNotExist.html";
		$expected = TestUtils::getRandomString(20);
		
		$_GET['id'] = null;
		
		$this->twig->expects($this->once())
			->method('render')
			->with($templateRequested, array())
			->willReturn($expected);
		
		$actual = $this->testObj->display();
		$this->assertEquals($expected, $actual);
	}

	public function testDisplayOutputsCorrectTemplate()
	{
		$offerId = TestUtils::getRandomInteger();
		$pageId = TestUtils::getRandomInteger();
		$_GET['id'] = $offerId;
		$_GET['page'] = $pageId;
		$offerName = TestUtils::getRandomString(10);
		$displayTitle = TestUtils::getRandomString(10);
		$disclaimer = TestUtils::getRandomString(10);
		$templateFilename = TestUtils::getRandomString(10);
		$expected = TestUtils::getRandomString(20);
		
		$template = array('name' => $offerName, 'display_title' => $displayTitle, 'disclaimer' => $disclaimer, 'filename' => $templateFilename, 'offer_id' => $offerId);
		
		$this->offerRetriever->method('getPageData')
			->with($offerId, $pageId)
			->willReturn($template);
		
		$this->twig->expects($this->once())
			->method('render')
			->with($templateFilename, $template)
			->willReturn($expected);
		
		$actual = $this->testObj->display();
		$this->assertEquals($expected, $actual);
	}
}