<?php
/**
 * ActivityPub Tribe Transformer
 *
 * @package activity-event-transformers
 * @license AGPL-3.0-or-later
 */

namespace Activitypub_Event_Extensions\Activitypub\Transformer;

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

use Activitypub_Event_Extensions\Activitypub\Transformer\Event;
use Activitypub\Activity\Extended_Object\Place;
use WP_Error;

/**
 * ActivityPub Tribe Transformer
 *
 * @since 1.0.0
 */
class Tribe extends Event {

	/**
	 * The Tribe Event object.
	 *
	 * @var WP_Post
	 */
	protected $tribe_event;

	// /**
	// * resolve the tribe metadata in the setter of wp_post.
	// *
	// * @param WP_Post $wp_post The WP_Post object.
	// * @return void
	// */
	// public function set_wp_post( WP_Post $wp_post ) {
	// parent::set_wp_post( $wp_post );
	// $this->tribe_event = tribe_get_event( $wp_post->ID );
	// }

	/**
	 * Get tribe category of wp_post
	 *
	 * @return string|null tribe category if it exists
	 */
	public function get_tribe_category() {
		// TODO: make it possible that one event can have multiple categories?
		// Using cat_slugs isn't the best way to do this, don't know if it's a good idea.
		$categories = tribe_get_event_cat_slugs( $this->wp_object->ID );

		if ( count( $categories ) === 0 ) {
			return null;
		}

		return $categories[0];
	}

	/**
	 * Get status of the tribe event
	 *
	 * @return string status of the event
	 */
	public function get_tribe_status() {

		if ( 'canceled' === $this->tribe_event->event_status ) {
			return 'CANCELLED';
		}
		if ( 'postponed' === $this->tribe_event->event_status ) {
			return 'CANCELLED'; // This will be reflected in the cancelled reason.
		}
		if ( '' === $this->tribe_event->event_status ) {
			return 'CONFIRMED';
		}

		return new WP_Error( 'invalid event_status value', __( 'invalid event_status', 'activitypub' ), array( 'status' => 404 ) );
	}

	/**
	 * Returns the content for the ActivityPub Item with
	 *
	 * The content will be generated based on the user settings.
	 *
	 * @return string The content.
	 */
	protected function get_content() {

		$content = parent::get_content();
		// TODO: remove link at the end of the content.

		// TODO: add organizer
		// $this->tribe_event->organizers[0].

		// TODO: do add Cancelled reason in the content (maybe at the end).

		return $content;
	}

	/**
	 * Get the event location.
	 *
	 * @returns array The Place.
	 */
	public function get_event_location() {
		/*
		This is how the Tribe event looks like:
		TODO: Remove this comment.
			'post_title' => 'testvenue',
			'post_name' => 'testvenue',
			'guid' => 'http://localhost/venue/testvenue/',
			'post_type' => 'tribe_venue',
			'address' => 'testaddr',
			'country' => 'Austria',
			'city' => 'testcity',
			'state_province' => 'testprovince',
			'state' => '',
			'province' => 'testprovince',
			'zip' => '8000',
			'phone' => '+4312343',
			'permalink' => 'http://localhost/venue/testvenue/',
			'directions_link' => 'https://maps.google.com/maps?f=q&#038;source=s_q&#038;hl=en&#038;geocode=&#038;q=testaddr+testcity+testprovince+8000+Austria',
			'website' => 'https://test.at',
		 */
		$venue = $this->tribe_event->venues[0];
		return ( new Place() )
			->set_type( 'Place' )
			->set_name( $venue->post_name )
			->set_address(
				$venue->address . "\n" .
							$venue->zip . ', ' . $venue->city . "\n" .
							$venue->country
			); // TODO: add checks that everything exists here.
	}
}