<?php
class ModelCatalogDownload extends Model {

    public function addDownload($data) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "download SET filename = '" . $this->db->escape($data['filename']) . "', mask = '" . $this->db->escape($data['mask']) . "', date_added = NOW()");

        $download_id = $this->db->getLastId();

        foreach ($data['download_description'] as $language_id => $value) {
            $this->db->query("INSERT INTO " . DB_PREFIX . "download_description SET download_id = '" . (int)$download_id . "', language_id = '" . (int)$language_id . "', name = '" . $this->db->escape($value['name']) . "'");
        }

        return $download_id;
    }

    public function editDownload($download_id, $data) {
        $this->db->query("UPDATE " . DB_PREFIX . "download SET filename = '" . $this->db->escape($data['filename']) . "', mask = '" . $this->db->escape($data['mask']) . "' WHERE download_id = '" . (int)$download_id . "'");

        $this->db->query("DELETE FROM " . DB_PREFIX . "download_description WHERE download_id = '" . (int)$download_id . "'");

        foreach ($data['download_description'] as $language_id => $value) {
            $this->db->query("INSERT INTO " . DB_PREFIX . "download_description SET download_id = '" . (int)$download_id . "', language_id = '" . (int)$language_id . "', name = '" . $this->db->escape($value['name']) . "'");
        }
    }

    public function deleteDownload($download_id) {
        $this->db->query("DELETE FROM " . DB_PREFIX . "download WHERE download_id = '" . (int)$download_id . "'");
        $this->db->query("DELETE FROM " . DB_PREFIX . "download_description WHERE download_id = '" . (int)$download_id . "'");
    }

    public function getDownload($download_id) {
        $query = $this->db->query("SELECT DISTINCT * FROM " . DB_PREFIX . "download d LEFT JOIN " . DB_PREFIX . "download_description dd ON (d.download_id = dd.download_id) WHERE d.download_id = '" . (int)$download_id . "' AND dd.language_id = '" . (int)$this->config->get('config_language_id') . "'");

        return $query->row;
    }

    public function getDownloads($data = array()) {
        $sql = "SELECT * FROM " . DB_PREFIX . "download d LEFT JOIN " . DB_PREFIX . "download_description dd ON (d.download_id = dd.download_id) WHERE dd.language_id = '" . (int)$this->config->get('config_language_id') . "'";

        if (!empty($data['filter_name'])) {
            $sql .= " AND dd.name LIKE '" . $this->db->escape($data['filter_name']) . "%'";
        }

        $sort_data = array(
            'dd.name',
            'd.date_added'
        );

        if (isset($data['sort']) && in_array($data['sort'], $sort_data)) {
            $sql .= " ORDER BY " . $data['sort'];
        } else {
            $sql .= " ORDER BY dd.name";
        }

        if (isset($data['order']) && ($data['order'] == 'DESC')) {
            $sql .= " DESC";
        } else {
            $sql .= " ASC";
        }

        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;
    }

    public function getDownloadDescriptions($download_id) {
        $download_description_data = array();

        $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "download_description WHERE download_id = '" . (int)$download_id . "'");

        foreach ($query->rows as $result) {
            $download_description_data[$result['language_id']] = array( 'name' => $result['name'] );
        }

        return $download_description_data;
    }

    public function getTotalDownloads() {
        $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "download");

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

}