<?php
declare(strict_types=1);

namespace RtbPanelConnector\Events;

use RtbPanelConnector\Helpers\Uid;
use RtbPanelConnector\Helpers\WooData;

defined('ABSPATH') || exit;

/**
 * ORDER (conversion) event.
 */
class OrderEvent extends BaseEvent{
	public const EVENT_TYPE = 'conversion';

	public static function build(): array
	{
		if (function_exists('is_order_received_page') && is_order_received_page()) {
			$orderId = 0;
			if (function_exists('get_query_var')) {
				$orderId = absint(get_query_var('order-received'));
			}
			if ($orderId) {
				$order = function_exists('wc_get_order') ? wc_get_order($orderId) : null;
				if ($order) {
					$offerIds = WooData::orderOfferIds($order);
					$ovc      = WooData::orderValueAndCurrency($order);
					return [
						self::getEventBody((string) $orderId, $offerIds, $ovc['value'], $ovc['currency']),
						Uid::buildTag(),
					];
				}
			}
		}
		return [];
	}

	private static function getEventBody(
		string $conversionId,
		array $offerIds,
		string $value,
		string $currency
	): array
	{
		return [
			'eventType' => self::EVENT_TYPE,
			'conversionClass'    => 'order',
			'conversionSubClass' => 'purchase',
			'conversionId'       => $conversionId,
			'offerIds'           => array_values(array_unique($offerIds)),
			'conversionValue'    => $value,
			'conversionCurrency' => $currency,
		];

	}
}