<?php

namespace SilverStripe\Forms\Tests;

use SilverStripe\Forms\HTMLEditor\HTMLEditorField;
use SilverStripe\Dev\SapphireTest;
use SilverStripe\Control\Controller;
use SilverStripe\Forms\FieldList;
use SilverStripe\Forms\Form;
use SilverStripe\Forms\Tests\FormScaffolderTest\Article;
use SilverStripe\Forms\Tests\FormScaffolderTest\ArticleExtension;
use SilverStripe\Forms\Tests\FormScaffolderTest\Author;
use SilverStripe\Forms\Tests\FormScaffolderTest\Tag;

/**
 * Tests for DataObject FormField scaffolding
 */
class FormScaffolderTest extends SapphireTest {

	protected static $fixture_file = 'FormScaffolderTest.yml';

	protected $requiredExtensions = [
		Article::class => [
			ArticleExtension::class
		]
	];

	protected $extraDataObjects = array(
		Article::class,
		Tag::class,
		Author::class,
	);


	public function testGetCMSFieldsSingleton() {
		$article = new Article;
		$fields = $article->getCMSFields();
		$form = new Form(new Controller(), 'TestForm', $fields, new FieldList());
		$form->loadDataFrom($article);

		$this->assertTrue($fields->hasTabSet(),
			'getCMSFields() produces a TabSet');
		$this->assertNotNull($fields->dataFieldByName('Title'),
			'getCMSFields() includes db fields');
		$this->assertNotNull($fields->dataFieldByName('Content'),
			'getCMSFields() includes db fields');
		$this->assertNotNull($fields->dataFieldByName('AuthorID'),
			'getCMSFields() includes has_one fields on singletons');
		$this->assertNull($fields->dataFieldByName('Tags'),
			"getCMSFields() doesn't include many_many fields if no ID is present");
	}

	public function testGetCMSFieldsInstance() {
		$article1 = $this->objFromFixture(Article::class, 'article1');

		$fields = $article1->getCMSFields();
		$form = new Form(new Controller(), 'TestForm', $fields, new FieldList());
		$form->loadDataFrom($article1);

		$this->assertNotNull($fields->dataFieldByName('AuthorID'),
			'getCMSFields() includes has_one fields on instances');
		$this->assertNotNull($fields->dataFieldByName('Tags'),
			'getCMSFields() includes many_many fields if ID is present on instances');
		$this->assertNotNull($fields->dataFieldByName('SubjectOfArticles'),
			'getCMSFields() includes polymorphic has_many fields if ID is present on instances');
		$this->assertNull($fields->dataFieldByName('Subject'),
			"getCMSFields() doesn't include polymorphic has_one field");
		$this->assertNull($fields->dataFieldByName('SubjectID'),
			"getCMSFields() doesn't include polymorphic has_one id field");
		$this->assertNull($fields->dataFieldByName('SubjectClass'),
			"getCMSFields() doesn't include polymorphic has_one class field");
	}

	public function testUpdateCMSFields() {
		$article1 = $this->objFromFixture(Article::class, 'article1');

		$fields = $article1->getCMSFields();
		$form = new Form(new Controller(), 'TestForm', $fields, new FieldList());
		$form->loadDataFrom($article1);

		$this->assertNotNull(
			$fields->dataFieldByName('AddedExtensionField'),
			'getCMSFields() includes extended fields'
		);
	}

	public function testRestrictCMSFields() {
		$article1 = $this->objFromFixture(Article::class, 'article1');

		$fields = $article1->scaffoldFormFields(array(
			'restrictFields' => array('Title')
		));
		$form = new Form(new Controller(), 'TestForm', $fields, new FieldList());
		$form->loadDataFrom($article1);

		$this->assertNotNull($fields->dataFieldByName('Title'),
			'scaffoldCMSFields() includes explitly defined "restrictFields"');
		$this->assertNull($fields->dataFieldByName('Content'),
			'getCMSFields() doesnt include fields left out in a "restrictFields" definition');
	}

	public function testFieldClassesOnGetCMSFields() {
		$article1 = $this->objFromFixture(Article::class, 'article1');

		$fields = $article1->scaffoldFormFields(array(
			'fieldClasses' => array('Title' => 'SilverStripe\\Forms\\HTMLEditor\\HTMLEditorField')
		));
		$form = new Form(new Controller(), 'TestForm', $fields, new FieldList());
		$form->loadDataFrom($article1);

		$this->assertNotNull(
			$fields->dataFieldByName('Title')
		);
		$this->assertInstanceOf(
			HTMLEditorField::class,
			$fields->dataFieldByName('Title'),
			'getCMSFields() doesnt include fields left out in a "restrictFields" definition'
		);
	}

	public function testGetFormFields() {
		$fields = Article::singleton()->getFrontEndFields();
		$form = new Form(new Controller(), 'TestForm', $fields, new FieldList());
		$form->loadDataFrom(singleton(Article::class));

		$this->assertFalse($fields->hasTabSet(), 'getFrontEndFields() doesnt produce a TabSet by default');
	}
}