<?php

namespace SilverStripe\Admin\Tests;

use SilverStripe\ORM\DataObject;
use SilverStripe\Admin\CMSMenu;
use SilverStripe\Admin\LeftAndMain;
use SilverStripe\Dev\FunctionalTest;
use SilverStripe\Security\Member;
use SilverStripe\View\Requirements;

class LeftAndMainTest extends FunctionalTest {

	protected static $fixture_file = 'LeftAndMainTest.yml';

	protected $extraDataObjects = [
		LeftAndMainTest\TestObject::class
	];

	protected $extraControllers = [
		LeftAndMainTest\TestController::class,
	];

	protected $backupCombined;

	public function setUp()
	{
		parent::setUp();

		// @todo fix controller stack problems and re-activate
		//$this->autoFollowRedirection = false;
		$this->resetMenu();
		$this->backupCombined = Requirements::get_combined_files_enabled();

		LeftAndMain::config()
			->update('extra_requirements_css', array(
				FRAMEWORK_ADMIN_DIR . '/tests/assets/LeftAndMainTest.css'
			))
			->update('extra_requirements_javascript', array(
				FRAMEWORK_ADMIN_DIR . '/tests/assets/LeftAndMainTest.js'
			));

		Requirements::set_combined_files_enabled(false);
	}

	/**
	 * Clear menu to default state as per LeftAndMain::init()
	 */
	protected function resetMenu() {
		CMSMenu::clear_menu();
		CMSMenu::populate_menu();
		CMSMenu::add_link(
			'Help',
			_t('LeftAndMain.HELP', 'Help', 'Menu title'),
			LeftAndMain::config()->help_link,
			-2,
			array(
				'target' => '_blank'
			)
		);
	}

	public function tearDown() {
		parent::tearDown();
		Requirements::set_combined_files_enabled($this->backupCombined);
	}

	public function testExtraCssAndJavascript() {
		$admin = $this->objFromFixture(Member::class, 'admin');
		$this->session()->inst_set('loggedInAs', $admin->ID);
		$response = $this->get('LeftAndMainTest_Controller');

		$this->assertRegExp('/tests\/assets\/LeftAndMainTest.css/i', $response->getBody(),
			"body should contain custom css");
		$this->assertRegExp('/tests\/assets\/LeftAndMainTest.js/i', $response->getBody(),
			"body should contain custom js");
	}

	/**
	 * Note: This test would typically rely on SiteTree and CMSMain, but is mocked by
	 * LeftAndMain_Controller and LeftAndMain_Object here to remove this dependency.
	 */
	public function testSaveTreeNodeSorting() {
		$this->logInWithPermission('ADMIN');

		// forcing sorting for non-MySQL
		$rootPages = LeftAndMainTest\TestObject::get()
			->filter("ParentID", 0)
			->sort('"ID"');
		$siblingIDs = $rootPages->column('ID');
		$page1 = $rootPages->offsetGet(0);
		$page2 = $rootPages->offsetGet(1);
		$page3 = $rootPages->offsetGet(2);

		// Move page2 before page1
		$siblingIDs[0] = $page2->ID;
		$siblingIDs[1] = $page1->ID;
		$data = array(
			'SiblingIDs' => $siblingIDs,
			'ID' => $page2->ID,
			'ParentID' => 0
		);

		$response = $this->post('LeftAndMainTest_Controller/savetreenode', $data);
		$this->assertEquals(200, $response->getStatusCode());
		$page1 = DataObject::get_by_id(LeftAndMainTest\TestObject::class, $page1->ID, false);
		$page2 = DataObject::get_by_id(LeftAndMainTest\TestObject::class, $page2->ID, false);
		$page3 = DataObject::get_by_id(LeftAndMainTest\TestObject::class, $page3->ID, false);

		$this->assertEquals(2, $page1->Sort, 'Page1 is sorted after Page2');
		$this->assertEquals(1, $page2->Sort, 'Page2 is sorted before Page1');
		$this->assertEquals(3, $page3->Sort, 'Sort order for other pages is unaffected');
	}

	public function testSaveTreeNodeParentID() {
		$this->logInWithPermission('ADMIN');

		$page2 = $this->objFromFixture(LeftAndMainTest\TestObject::class, 'page2');
		$page3 = $this->objFromFixture(LeftAndMainTest\TestObject::class, 'page3');
		$page31 = $this->objFromFixture(LeftAndMainTest\TestObject::class, 'page31');
		$page32 = $this->objFromFixture(LeftAndMainTest\TestObject::class, 'page32');

		// Move page2 into page3, between page3.1 and page 3.2
		$siblingIDs = array(
			$page31->ID,
			$page2->ID,
			$page32->ID
		);
		$data = array(
			'SiblingIDs' => $siblingIDs,
			'ID' => $page2->ID,
			'ParentID' => $page3->ID
		);
		$response = $this->post('LeftAndMainTest_Controller/savetreenode', $data);
		$this->assertEquals(200, $response->getStatusCode());
		$page2 = DataObject::get_by_id(LeftAndMainTest\TestObject::class, $page2->ID, false);
		$page31 = DataObject::get_by_id(LeftAndMainTest\TestObject::class, $page31->ID, false);
		$page32 = DataObject::get_by_id(LeftAndMainTest\TestObject::class, $page32->ID, false);

		$this->assertEquals($page3->ID, $page2->ParentID, 'Moved page gets new parent');
		$this->assertEquals(1, $page31->Sort, 'Children pages before insertaion are unaffected');
		$this->assertEquals(2, $page2->Sort, 'Moved page is correctly sorted');
		$this->assertEquals(3, $page32->Sort, 'Children pages after insertion are resorted');
	}

	/**
	 * Check that all subclasses of leftandmain can be accessed
	 */
	public function testLeftAndMainSubclasses() {
		$adminuser = $this->objFromFixture(Member::class,'admin');
		$this->session()->inst_set('loggedInAs', $adminuser->ID);

		$this->resetMenu();
		$menuItems = LeftAndMain::singleton()->MainMenu(false);
		foreach($menuItems as $menuItem) {
			$link = $menuItem->Link;

			// don't test external links
			if(preg_match('/^(https?:)?\/\//',$link)) continue;

			$response = $this->get($link);

			$this->assertInstanceOf('SilverStripe\\Control\\HTTPResponse', $response, "$link should return a response object");
			$this->assertEquals(200, $response->getStatusCode(), "$link should return 200 status code");
			// Check that a HTML page has been returned
			$this->assertRegExp('/<html[^>]*>/i', $response->getBody(), "$link should contain <html> tag");
			$this->assertRegExp('/<head[^>]*>/i', $response->getBody(), "$link should contain <head> tag");
			$this->assertRegExp('/<body[^>]*>/i', $response->getBody(), "$link should contain <body> tag");
		}

		$this->session()->inst_set('loggedInAs', null);

	}

	public function testCanView() {
		$adminuser = $this->objFromFixture(Member::class, 'admin');
		$securityonlyuser = $this->objFromFixture(Member::class, 'securityonlyuser');
		$allcmssectionsuser = $this->objFromFixture(Member::class, 'allcmssectionsuser');

		// anonymous user
		$this->session()->inst_set('loggedInAs', null);
		$this->resetMenu();
		$menuItems = LeftAndMain::singleton()->MainMenu(false);
		$this->assertEquals(
			$menuItems->column('Code'),
			array(),
			'Without valid login, members cant access any menu entries'
		);

		// restricted cms user
		$this->logInAs($securityonlyuser);
		$this->resetMenu();
		$menuItems = LeftAndMain::singleton()->MainMenu(false);
		$menuItems = $menuItems->column('Code');
		sort($menuItems);

		$this->assertEquals(
			array(
				'Help',
				'SilverStripe-Admin-CMSProfileController',
				'SilverStripe-Admin-SecurityAdmin'
			),
			$menuItems,
			'Groups with limited access can only access the interfaces they have permissions for'
		);

		// all cms sections user
		$this->logInAs($allcmssectionsuser);
		$this->resetMenu();
		$menuItems = LeftAndMain::singleton()->MainMenu(false);
		$this->assertContains(
			'SilverStripe-Admin-CMSProfileController',
			$menuItems->column('Code'),
			'Group with CMS_ACCESS_SilverStripe\\Admin\\LeftAndMain permission can edit own profile'
		);
		$this->assertContains(
			'SilverStripe-Admin-SecurityAdmin',
			$menuItems->column('Code'),
			'Group with CMS_ACCESS_SilverStripe\\Admin\\LeftAndMain permission can access all sections'
		);
		$this->assertContains(
			'Help',
			$menuItems->column('Code'),
			'Group with CMS_ACCESS_SilverStripe\\Admin\\LeftAndMain permission can access all sections'
		);

		// admin
		$this->logInAs($adminuser);
		$this->resetMenu();
		$menuItems = LeftAndMain::singleton()->MainMenu(false);
		$this->assertContains(
			'SilverStripe-Admin-SecurityAdmin',
			$menuItems->column('Code'),
			'Administrators can access Security Admin'
		);

		$this->session()->inst_set('loggedInAs', null);
	}

	/**
	 * Test {@see LeftAndMain::updatetreenodes}
	 */
	public function testUpdateTreeNodes() {
		$page1 = $this->objFromFixture(LeftAndMainTest\TestObject::class, 'page1');
		$page2 = $this->objFromFixture(LeftAndMainTest\TestObject::class, 'page2');
		$page3 = $this->objFromFixture(LeftAndMainTest\TestObject::class, 'page3');
		$page31 = $this->objFromFixture(LeftAndMainTest\TestObject::class, 'page31');
		$page32 = $this->objFromFixture(LeftAndMainTest\TestObject::class, 'page32');
		$this->logInWithPermission('ADMIN');

		// Check page
		$result = $this->get('LeftAndMainTest_Controller/updatetreenodes?ids='.$page1->ID);
		$this->assertEquals(200, $result->getStatusCode());
		$this->assertEquals('text/json', $result->getHeader('Content-Type'));
		$data = json_decode($result->getBody(), true);
		$pageData = $data[$page1->ID];
		$this->assertEquals(0, $pageData['ParentID']);
		$this->assertEquals($page2->ID, $pageData['NextID']);
		$this->assertEmpty($pageData['PrevID']);

		// check subpage
		$result = $this->get('LeftAndMainTest_Controller/updatetreenodes?ids='.$page31->ID);
		$this->assertEquals(200, $result->getStatusCode());
		$this->assertEquals('text/json', $result->getHeader('Content-Type'));
		$data = json_decode($result->getBody(), true);
		$pageData = $data[$page31->ID];
		$this->assertEquals($page3->ID, $pageData['ParentID']);
		$this->assertEquals($page32->ID, $pageData['NextID']);
		$this->assertEmpty($pageData['PrevID']);

		// Multiple pages
		$result = $this->get('LeftAndMainTest_Controller/updatetreenodes?ids='.$page1->ID.','.$page2->ID);
		$this->assertEquals(200, $result->getStatusCode());
		$this->assertEquals('text/json', $result->getHeader('Content-Type'));
		$data = json_decode($result->getBody(), true);
		$this->assertEquals(2, count($data));

		// Invalid IDs
		$result = $this->get('LeftAndMainTest_Controller/updatetreenodes?ids=-3');
		$this->assertEquals(200, $result->getStatusCode());
		$this->assertEquals('text/json', $result->getHeader('Content-Type'));
		$data = json_decode($result->getBody(), true);
		$this->assertEquals(0, count($data));
	}
}