<?php

namespace SilverStripe\CMS\Tests\Controllers;

use SilverStripe\CMS\Controllers\ContentController;
use SilverStripe\CMS\Controllers\RootURLController;
use SilverStripe\CMS\Model\SiteTree;
use SilverStripe\Control\Director;
use SilverStripe\Control\HTTPResponse_Exception;
use SilverStripe\Core\Config\Config;
use SilverStripe\Dev\FunctionalTest;
use SilverStripe\Versioned\Versioned;

class ContentControllerTest extends FunctionalTest
{
    protected static $fixture_file = 'ContentControllerTest.yml';

    protected static $disable_themes = true;

    protected static $extra_dataobjects = [
        ContentControllerTest_Page::class,
        ContentControllerTestPage::class,
        ContentControllerTestPageWithoutController::class,
    ];

    protected function setUp(): void
    {
        parent::setUp();

        Config::modify()->set(SiteTree::class, 'nested_urls', true);

        // Ensure all pages are published
        /** @var SiteTree $page */
        foreach (SiteTree::get() as $page) {
            $page->publishSingle();
        }
    }

    /**
     * Test that nested pages, basic actions, and nested/non-nested URL switching works properly
     */

    public function testNestedPages()
    {
        Config::modify()->set(SiteTree::class, 'nested_urls', true);

        $this->assertEquals('Home Page', $this->get('/')->getBody());
        $this->assertEquals('Home Page', $this->get('/home/index/')->getBody());
        $this->assertEquals('Home Page', $this->get('/home/second-index/')->getBody());

        $this->assertEquals('Second Level Page', $this->get('/home/second-level/')->getBody());
        $this->assertEquals('Second Level Page', $this->get('/home/second-level/index/')->getBody());
        $this->assertEquals('Second Level Page', $this->get('/home/second-level/second-index/')->getBody());

        $this->assertEquals('Third Level Page', $this->get('/home/second-level/third-level/')->getBody());
        $this->assertEquals('Third Level Page', $this->get('/home/second-level/third-level/index/')->getBody());
        $this->assertEquals('Third Level Page', $this->get('/home/second-level/third-level/second-index/')->getBody());

        RootURLController::reset();
        Config::modify()->set(SiteTree::class, 'nested_urls', false);

        $this->assertEquals('Home Page', $this->get('/')->getBody());
        $this->assertEquals('Home Page', $this->get('/home/')->getBody());
        $this->assertEquals('Home Page', $this->get('/home/second-index/')->getBody());

        $this->assertEquals('Second Level Page', $this->get('/second-level/')->getBody());
        $this->assertEquals('Second Level Page', $this->get('/second-level/index/')->getBody());
        $this->assertEquals('Second Level Page', $this->get('/second-level/second-index/')->getBody());

        $this->assertEquals('Third Level Page', $this->get('/third-level/')->getBody());
        $this->assertEquals('Third Level Page', $this->get('/third-level/index/')->getBody());
        $this->assertEquals('Third Level Page', $this->get('/third-level/second-index/')->getBody());
    }

    /**
     * Tests {@link ContentController::ChildrenOf()}
     */
    public function testChildrenOf()
    {
        $controller = new ContentController();

        $this->assertEquals(1, $controller->ChildrenOf('/')->Count());
        $this->assertEquals(1, $controller->ChildrenOf('/home/')->Count());
        $this->assertEquals(2, $controller->ChildrenOf('/home/second-level/')->Count());
        $this->assertEquals(0, $controller->ChildrenOf('/home/second-level/third-level/')->Count());

        SiteTree::config()->set('nested_urls', false);

        $this->assertEquals(1, $controller->ChildrenOf('/')->Count());
        $this->assertEquals(1, $controller->ChildrenOf('/home/')->Count());
        $this->assertEquals(2, $controller->ChildrenOf('/second-level/')->Count());
        $this->assertEquals(0, $controller->ChildrenOf('/third-level/')->Count());
    }

    public function testDeepNestedURLs()
    {
        $page = new SiteTree();
        $page->URLSegment = 'base-page';
        $page->write();
        $page->publishSingle();

        for ($i = 0; $i < 10; $i++) {
            $parentID = $page->ID;

            $page = new ContentControllerTest_Page();
            $page->ParentID = $parentID;
            $page->Title = "Page Level $i";
            $page->URLSegment = "level-$i";
            $page->write();
            $page->publishSingle();

            $relativeLink = Director::makeRelative($page->Link());
            $this->assertEquals($page->Title, $this->get($relativeLink)->getBody());
        }
    }

    public function testViewDraft()
    {
        // test when user does not have permission, should get login form
        $this->logInWithPermission('EDITOR');
        try {
            $response = $this->get('/contact/?stage=Stage');
        } catch (HTTPResponse_Exception $responseException) {
            $response = $responseException->getResponse();
        }

        $this->assertEquals('403', $response->getstatusCode());

        // test when user does have permission, should show page title and header ok.
        $this->logInWithPermission('ADMIN');
        $this->assertEquals('200', $this->get('contact/?stage=Stage')->getstatusCode());
    }

    public function testLinkShortcodes()
    {
        $linkedPage = new SiteTree();
        $linkedPage->URLSegment = 'linked-page';
        $linkedPage->write();
        $linkedPage->publishSingle();

        $page = new SiteTree();
        $page->URLSegment = 'linking-page';
        $page->Content = sprintf('<a href="[sitetree_link,id=%s]">Testlink</a>', $linkedPage->ID);
        $page->write();
        $page->publishSingle();

        $link = $page->RelativeLink();
        $response = $this->get($link);
        $this->assertStringContainsString(
            sprintf('<a href="%s">Testlink</a>', $linkedPage->Link()),
            $response->getBody(),
            '"sitetree_link" shortcodes get parsed properly'
        );
    }


    /**
     * Tests that {@link ContentController::getViewer()} chooses the correct templates.
     *
     * @covers \SilverStripe\CMS\Controllers\ContentController::getViewer()
     **/
    public function testGetViewer()
    {
        $this->useTestTheme(__DIR__, 'controllertest', function () {

            // Test a page without a controller (ContentControllerTest_PageWithoutController.ss)
            $page = new ContentControllerTestPageWithoutController();
            $page->URLSegment = "test";
            $page->write();
            $page->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

            $response = $this->get($page->RelativeLink());
            $this->assertEquals("ContentControllerTestPageWithoutController", trim($response->getBody() ?? ''));

            // This should fall over to user Page.ss
            $page = new ContentControllerTestPage();
            $page->URLSegment = "test";
            $page->write();
            $page->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

            $response = $this->get($page->RelativeLink());
            $this->assertEquals("Page", trim($response->getBody() ?? ''));


            // Test that the action template is rendered.
            $page = new ContentControllerTestPage();
            $page->URLSegment = "page-without-controller";
            $page->write();
            $page->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

            $response = $this->get($page->RelativeLink("test"));
            $this->assertEquals("ContentControllerTestPage_test", trim($response->getBody() ?? ''));

            // Test that an action without a template will default to the index template, which is
            // to say the default Page.ss template
            $response = $this->get($page->RelativeLink("testwithouttemplate"));
            $this->assertEquals("Page", trim($response->getBody() ?? ''));

            // Test that an action with a template will render the both action template *and* the
            // correct parent template
            $controller = new ContentController($page);
            $viewer = $controller->getViewer('test');
            $this->assertEquals(
                __DIR__
                . '/themes/controllertest/templates/SilverStripe/CMS/Tests/Controllers/'
                . 'ContentControllerTestPage_test.ss',
                $viewer->templates()['main']
            );
        });
    }
}