<?php

namespace ActivityPub\Test\ActivityEventHandlers;

use ActivityPub\ActivityEventHandlers\InboxActivityEvent;
use ActivityPub\ActivityEventHandlers\OutboxActivityEvent;
use ActivityPub\ActivityEventHandlers\ValidationHandler;
use ActivityPub\Test\TestConfig\APTestCase;
use ActivityPub\Test\TestUtils\TestActivityPubObject;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;

class ValidationHandlerTest extends APTestCase
{
    /**
     * @var EventDispatcher
     */
    private $eventDispatcher;

    public function setUp()
    {
        $this->eventDispatcher = new EventDispatcher();
        $validationHandler = new ValidationHandler();
        $this->eventDispatcher->addSubscriber( $validationHandler );
    }

    public function provideTestValidationHandler()
    {
        return array(
            array( array(
                'id' => 'inboxRequiredFields',
                'eventName' => InboxActivityEvent::NAME,
                'event' => new InboxActivityEvent(
                    array(),
                    TestActivityPubObject::fromArray( array(
                        'id' => 'https://notexample.com/actor/1',
                        'type' => 'Person',
                    ) ),
                    Request::create( 'https://example.com' )
                ),
                'expectedException' => BadRequestHttpException::class,
                'expectedExceptionMessage' => 'Missing activity fields: type,id,actor',
            ) ),
            array( array(
                'id' => 'outboxRequiredFields',
                'eventName' => OutboxActivityEvent::NAME,
                'event' => new OutboxActivityEvent(
                    array(),
                    TestActivityPubObject::fromArray( array(
                        'id' => 'https://example.com/actor/1',
                        'type' => 'Person',
                    ) ),
                    Request::create( 'https://example.com' )
                ),
                'expectedException' => BadRequestHttpException::class,
                'expectedExceptionMessage' => 'Missing activity fields: type,actor',
            ) ),
            array( array(
                'id' => 'inboxPassesValidActivity',
                'eventName' => InboxActivityEvent::NAME,
                'event' => new InboxActivityEvent(
                    array(
                        'id' => 'https://notexample.com/activity/1',
                        'type' => 'Create',
                        'actor' => 'https://notexample.com/actor/1',
                        'object' => array(
                            'type' => 'Note',
                        ),
                    ),
                    TestActivityPubObject::fromArray( array(
                        'id' => 'https://notexample.com/actor/1',
                        'type' => 'Person',
                    ) ),
                    Request::create( 'https://example.com' )
                ),
            ) ),
            array( array(
                'id' => 'outboxPassesValidActivity',
                'eventName' => OutboxActivityEvent::NAME,
                'event' => new OutboxActivityEvent(
                    array(
                        'type' => 'Create',
                        'actor' => 'https://example.com/actor/1',
                        'object' => array(
                            'type' => 'Note',
                        ),
                    ),
                    TestActivityPubObject::fromArray( array(
                        'id' => 'https://example.com/actor/1',
                        'type' => 'Person',
                    ) ),
                    Request::create( 'https://example.com' )
                ),
            ) ),
            array( array(
                'id' => 'outboxRequiresObjectFields',
                'eventName' => OutboxActivityEvent::NAME,
                'event' => new OutboxActivityEvent(
                    array(
                        'id' => 'https://example.com/creates/1',
                        'type' => 'Create',
                        'actor' => 'https://example.com/actor/1',
                    ),
                    TestActivityPubObject::fromArray( array(
                        'id' => 'https://example.com/actor/1',
                        'type' => 'Person',
                    ) ),
                    Request::create( 'https://example.com' )
                ),
                'expectedException' => BadRequestHttpException::class,
                'expectedExceptionMessage' => 'Missing activity fields: object',
            ) ),
            array( array(
                'id' => 'inboxRequiresObjectFields',
                'eventName' => InboxActivityEvent::NAME,
                'event' => new InboxActivityEvent(
                    array(
                        'id' => 'https://elsewhere.com/activities/1',
                        'type' => 'Create',
                        'actor' => 'https://elsewhere.com/actors/1'
                    ),
                    TestActivityPubObject::fromArray( array(
                        'id' => 'https://notexample.com/actor/1',
                        'type' => 'Person',
                    ) ),
                    Request::create( 'https://example.com' )
                ),
                'expectedException' => BadRequestHttpException::class,
                'expectedExceptionMessage' => 'Missing activity fields: object',
            ) ),
            array( array(
                'id' => 'inboxRequiresTargetFields',
                'eventName' => InboxActivityEvent::NAME,
                'event' => new InboxActivityEvent(
                    array(
                        'id' => 'https://elsewhere.com/activities/1',
                        'actor' => 'https://elsewhere.com/actors/1',
                        'object' => 'https://elsewhere.com/collections/1',
                        'type' => 'Add',
                    ),
                    TestActivityPubObject::fromArray( array(
                        'id' => 'https://notexample.com/actor/1',
                        'type' => 'Person',
                    ) ),
                    Request::create( 'https://example.com' )
                ),
                'expectedException' => BadRequestHttpException::class,
                'expectedExceptionMessage' => 'Missing activity fields: target',
            ) ),
            array( array(
                'id' => 'outboxRequiresTargetFields',
                'eventName' => OutboxActivityEvent::NAME,
                'event' => new OutboxActivityEvent(
                    array(
                        'id' => 'https://example.com/activities/1',
                        'object' => 'https://example.com/collections/1',
                        'type' => 'Remove',
                        'actor' => 'https://example.com/actor/1',
                    ),
                    TestActivityPubObject::fromArray( array(
                        'id' => 'https://example.com/actor/1',
                        'type' => 'Person',
                    ) ),
                    Request::create( 'https://example.com' )
                ),
                'expectedException' => BadRequestHttpException::class,
                'expectedExceptionMessage' => 'Missing activity fields: target',
            ) ),
        );
    }

    /**
     * @dataProvider provideTestValidationHandler
     */
    public function testValidationHandler( $testCase )
    {
        $event = $testCase['event'];
        if ( array_key_exists( 'expectedException', $testCase ) ) {
            $expectedExceptionMessage = '';
            if ( array_key_exists( 'expectedExceptionMessage', $testCase ) ) {
                $expectedExceptionMessage = $testCase['expectedExceptionMessage'];
            }
            $this->setExpectedException(
                $testCase['expectedException'], $expectedExceptionMessage
            );
        }
        $this->eventDispatcher->dispatch( $testCase['eventName'], $event );
    }
}