<?php
namespace Opencart\Admin\Model\Extension\Opencart\Report;
/**
 * Class Returns
 *
 * @package Opencart\Admin\Model\Extension\Opencart\Report
 */
class Returns extends \Opencart\System\Engine\Model {
	/**
	 * @param array $data
	 *
	 * @return array
	 */
	public function getReturns(array $data = []): array {
		$sql = "SELECT MIN(r.`date_added`) AS date_start, MAX(r.`date_added`) AS date_end, COUNT(r.`return_id`) AS returns FROM `" . DB_PREFIX . "return` r";

		if (!empty($data['filter_return_status_id'])) {
			$sql .= " WHERE r.`return_status_id` = '" . (int)$data['filter_return_status_id'] . "'";
		} else {
			$sql .= " WHERE r.`return_status_id` > '0'";
		}

		if (!empty($data['filter_date_start'])) {
			$sql .= " AND DATE(r.`date_added`) >= DATE('" . $this->db->escape((string)$data['filter_date_start']) . "')";
		}

		if (!empty($data['filter_date_end'])) {
			$sql .= " AND DATE(r.`date_added`) <= DATE('" . $this->db->escape((string)$data['filter_date_end']) . "')";
		}

		if (isset($data['filter_group'])) {
			$group = $data['filter_group'];
		} else {
			$group = 'week';
		}

		switch ($group) {
			case 'day';
				$sql .= " GROUP BY YEAR(r.`date_added`), MONTH(r.`date_added`), DAY(r.`date_added`)";
				break;
			default:
			case 'week':
				$sql .= " GROUP BY YEAR(r.`date_added`), WEEK(r.`date_added`)";
				break;
			case 'month':
				$sql .= " GROUP BY YEAR(r.`date_added`), MONTH(r.`date_added`)";
				break;
			case 'year':
				$sql .= " GROUP BY YEAR(r.`date_added`)";
				break;
		}

		if (isset($data['start']) || isset($data['limit'])) {
			if ($data['start'] < 0) {
				$data['start'] = 0;
			}

			if ($data['limit'] < 1) {
				$data['limit'] = 20;
			}

			$sql .= " LIMIT " . (int)$data['start'] . "," . (int)$data['limit'];
		}

		$query = $this->db->query($sql);

		return $query->rows;
	}

	/**
	 * @param array $data
	 *
	 * @return int
	 */
	public function getTotalReturns(array $data = []): int {
		if (!empty($data['filter_group'])) {
			$group = $data['filter_group'];
		} else {
			$group = 'week';
		}

		switch ($group) {
			case 'day';
				$sql = "SELECT COUNT(DISTINCT YEAR(`date_added`), MONTH(`date_added`), DAY(`date_added`)) AS `total` FROM `" . DB_PREFIX . "return`";
				break;
			default:
			case 'week':
				$sql = "SELECT COUNT(DISTINCT YEAR(`date_added`), WEEK(`date_added`)) AS `total` FROM `" . DB_PREFIX . "return`";
				break;
			case 'month':
				$sql = "SELECT COUNT(DISTINCT YEAR(`date_added`), MONTH(`date_added`)) AS `total` FROM `" . DB_PREFIX . "return`";
				break;
			case 'year':
				$sql = "SELECT COUNT(DISTINCT YEAR(`date_added`)) AS `total` FROM `" . DB_PREFIX . "return`";
				break;
		}

		if (!empty($data['filter_return_status_id'])) {
			$sql .= " WHERE `return_status_id` = '" . (int)$data['filter_return_status_id'] . "'";
		} else {
			$sql .= " WHERE `return_status_id` > '0'";
		}

		if (!empty($data['filter_date_start'])) {
			$sql .= " AND DATE(`date_added`) >= DATE('" . $this->db->escape((string)$data['filter_date_start']) . "')";
		}

		if (!empty($data['filter_date_end'])) {
			$sql .= " AND DATE(`date_added`) <= DATE('" . $this->db->escape((string)$data['filter_date_end']) . "')";
		}

		$query = $this->db->query($sql);

		return (int)$query->row['total'];
	}
}
