<?php
class ModelSaleReturn extends Model {

    public function addReturn($data) {
        $this->db->query("INSERT INTO `" . DB_PREFIX . "return` SET order_id = '" . (int)$data['order_id'] . "', product_id = '" . (int)$data['product_id'] . "', customer_id = '" . (int)$data['customer_id'] . "', firstname = '" . $this->db->escape($data['firstname']) . "', lastname = '" . $this->db->escape($data['lastname']) . "', email = '" . $this->db->escape($data['email']) . "', telephone = '" . $this->db->escape($data['telephone']) . "', product = '" . $this->db->escape($data['product']) . "', model = '" . $this->db->escape($data['model']) . "', quantity = '" . (int)$data['quantity'] . "', opened = '" . (int)$data['opened'] . "', return_reason_id = '" . (int)$data['return_reason_id'] . "', return_action_id = '" . (int)$data['return_action_id'] . "', return_status_id = '" . (int)$data['return_status_id'] . "', comment = '" . $this->db->escape($data['comment']) . "', date_ordered = '" . $this->db->escape($data['date_ordered']) . "', date_added = NOW(), date_modified = NOW()");

        return $this->db->getLastId();
    }

    public function editReturn($return_id, $data) {
        $this->db->query("UPDATE `" . DB_PREFIX . "return` SET order_id = '" . (int)$data['order_id'] . "', product_id = '" . (int)$data['product_id'] . "', customer_id = '" . (int)$data['customer_id'] . "', firstname = '" . $this->db->escape($data['firstname']) . "', lastname = '" . $this->db->escape($data['lastname']) . "', email = '" . $this->db->escape($data['email']) . "', telephone = '" . $this->db->escape($data['telephone']) . "', product = '" . $this->db->escape($data['product']) . "', model = '" . $this->db->escape($data['model']) . "', quantity = '" . (int)$data['quantity'] . "', opened = '" . (int)$data['opened'] . "', return_reason_id = '" . (int)$data['return_reason_id'] . "', return_action_id = '" . (int)$data['return_action_id'] . "', comment = '" . $this->db->escape($data['comment']) . "', date_ordered = '" . $this->db->escape($data['date_ordered']) . "', date_modified = NOW() WHERE return_id = '" . (int)$return_id . "'");
    }

    public function deleteReturn($return_id) {
        $this->db->query("DELETE FROM `" . DB_PREFIX . "return` WHERE return_id = '" . (int)$return_id . "'");
        $this->db->query("DELETE FROM " . DB_PREFIX . "return_history WHERE return_id = '" . (int)$return_id . "'");
    }

    public function getReturn($return_id) {
        $query = $this->db->query("SELECT DISTINCT *, (SELECT CONCAT(c.firstname, ' ', c.lastname) FROM " . DB_PREFIX . "customer c WHERE c.customer_id = r.customer_id) AS customer FROM `" . DB_PREFIX . "return` r WHERE r.return_id = '" . (int)$return_id . "'");

        return $query->row;
    }

    public function getReturns($data = array()) {
        $sql = "SELECT *, CONCAT(r.firstname, ' ', r.lastname) AS customer, (SELECT rs.name FROM " . DB_PREFIX . "return_status rs WHERE rs.return_status_id = r.return_status_id AND rs.language_id = '" . (int)$this->config->get('config_language_id') . "') AS status FROM `" . DB_PREFIX . "return` r";

        $implode = array();

        if (!empty($data['filter_return_id'])) {
            $implode[] = "r.return_id = '" . (int)$data['filter_return_id'] . "'";
        }

        if (!empty($data['filter_order_id'])) {
            $implode[] = "r.order_id = '" . (int)$data['filter_order_id'] . "'";
        }

        if (!empty($data['filter_customer'])) {
            $implode[] = "CONCAT(r.firstname, ' ', r.lastname) LIKE '" . $this->db->escape($data['filter_customer']) . "%'";
        }

        if (!empty($data['filter_product'])) {
            $implode[] = "r.product = '" . $this->db->escape($data['filter_product']) . "'";
        }

        if (!empty($data['filter_model'])) {
            $implode[] = "r.model = '" . $this->db->escape($data['filter_model']) . "'";
        }

        if (!empty($data['filter_return_status_id'])) {
            $implode[] = "r.return_status_id = '" . (int)$data['filter_return_status_id'] . "'";
        }

        if (!empty($data['filter_date_added'])) {
            $implode[] = "DATE(r.date_added) = DATE('" . $this->db->escape($data['filter_date_added']) . "')";
        }

        if (!empty($data['filter_date_modified'])) {
            $implode[] = "DATE(r.date_modified) = DATE('" . $this->db->escape($data['filter_date_modified']) . "')";
        }

        if ($implode) {
            $sql .= " WHERE " . implode(" AND ", $implode);
        }

        $sort_data = array(
            'r.return_id',
            'r.order_id',
            'customer',
            'r.product',
            'r.model',
            'status',
            'r.date_added',
            'r.date_modified'
        );

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

        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 getTotalReturns($data = array()) {
        $sql = "SELECT COUNT(*) AS total FROM `" . DB_PREFIX . "return`r";

        $implode = array();

        if (!empty($data['filter_return_id'])) {
            $implode[] = "r.return_id = '" . (int)$data['filter_return_id'] . "'";
        }

        if (!empty($data['filter_customer'])) {
            $implode[] = "CONCAT(r.firstname, ' ', r.lastname) LIKE '" . $this->db->escape($data['filter_customer']) . "%'";
        }

        if (!empty($data['filter_order_id'])) {
            $implode[] = "r.order_id = '" . $this->db->escape($data['filter_order_id']) . "'";
        }

        if (!empty($data['filter_product'])) {
            $implode[] = "r.product = '" . $this->db->escape($data['filter_product']) . "'";
        }

        if (!empty($data['filter_model'])) {
            $implode[] = "r.model = '" . $this->db->escape($data['filter_model']) . "'";
        }

        if (!empty($data['filter_return_status_id'])) {
            $implode[] = "r.return_status_id = '" . (int)$data['filter_return_status_id'] . "'";
        }

        if (!empty($data['filter_date_added'])) {
            $implode[] = "DATE(r.date_added) = DATE('" . $this->db->escape($data['filter_date_added']) . "')";
        }

        if (!empty($data['filter_date_modified'])) {
            $implode[] = "DATE(r.date_modified) = DATE('" . $this->db->escape($data['filter_date_modified']) . "')";
        }

        if ($implode) {
            $sql .= " WHERE " . implode(" AND ", $implode);
        }

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

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

    public function getTotalReturnsByReturnStatusId($return_status_id) {
        $query = $this->db->query("SELECT COUNT(*) AS total FROM `" . DB_PREFIX . "return` WHERE return_status_id = '" . (int)$return_status_id . "'");

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

    public function getTotalReturnsByReturnReasonId($return_reason_id) {
        $query = $this->db->query("SELECT COUNT(*) AS total FROM `" . DB_PREFIX . "return` WHERE return_reason_id = '" . (int)$return_reason_id . "'");

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

    public function getTotalReturnsByReturnActionId($return_action_id) {
        $query = $this->db->query("SELECT COUNT(*) AS total FROM `" . DB_PREFIX . "return` WHERE return_action_id = '" . (int)$return_action_id . "'");

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

    public function addReturnHistory($return_id, $data) {
        $this->db->query("UPDATE `" . DB_PREFIX . "return` SET return_status_id = '" . (int)$data['return_status_id'] . "', date_modified = NOW() WHERE return_id = '" . (int)$return_id . "'");

        $this->db->query("INSERT INTO " . DB_PREFIX . "return_history SET return_id = '" . (int)$return_id . "', return_status_id = '" . (int)$data['return_status_id'] . "', notify = '" . (isset($data['notify']) ? (int)$data['notify'] : 0) . "', comment = '" . $this->db->escape(strip_tags($data['comment'])) . "', date_added = NOW()");

        if ($data['notify']) {
            $return_query = $this->db->query("SELECT *, rs.name AS status FROM `" . DB_PREFIX . "return` r LEFT JOIN " . DB_PREFIX . "return_status rs ON (r.return_status_id = rs.return_status_id) WHERE r.return_id = '" . (int)$return_id . "' AND rs.language_id = '" . (int)$this->config->get('config_language_id') . "'");

            if ($return_query->num_rows) {
                $this->load->language('mail/return');

                $subject = sprintf($this->language->get('text_subject'), html_entity_decode($this->config->get('config_name'), ENT_QUOTES, 'UTF-8'), $return_id);

                $message = $this->language->get('text_return_id') . ' ' . $return_id . "\n";
                $message .= $this->language->get('text_date_added') . ' ' . date($this->language->get('date_format_short'), strtotime($return_query->row['date_added'])) . "\n\n";
                $message .= $this->language->get('text_return_status') . "\n";
                $message .= $return_query->row['status'] . "\n\n";

                if ($data['comment']) {
                    $message .= $this->language->get('text_comment') . "\n\n";
                    $message .= strip_tags(html_entity_decode($data['comment'], ENT_QUOTES, 'UTF-8')) . "\n\n";
                }

                $message .= $this->language->get('text_footer');

                $mail = new Mail();
                $mail->protocol = $this->config->get('config_mail_protocol');
                $mail->parameter = $this->config->get('config_mail_parameter');
                $mail->smtp_hostname = $this->config->get('config_mail_smtp_hostname');
                $mail->smtp_username = $this->config->get('config_mail_smtp_username');
                $mail->smtp_password = html_entity_decode($this->config->get('config_mail_smtp_password'), ENT_QUOTES, 'UTF-8');
                $mail->smtp_port = $this->config->get('config_mail_smtp_port');
                $mail->smtp_timeout = $this->config->get('config_mail_smtp_timeout');

                $mail->setTo($return_query->row['email']);
                $mail->setFrom($this->config->get('config_email'));
                $mail->setSender(html_entity_decode($this->config->get('config_name'), ENT_QUOTES, 'UTF-8'));
                $mail->setSubject($subject);
                $mail->setText($message);
                $mail->send();
            }
        }
    }

    public function getReturnHistories($return_id, $start = 0, $limit = 10) {
        if ($start < 0) {
            $start = 0;
        }

        if ($limit < 1) {
            $limit = 10;
        }

        $query = $this->db->query("SELECT rh.date_added, rs.name AS status, rh.comment, rh.notify FROM " . DB_PREFIX . "return_history rh LEFT JOIN " . DB_PREFIX . "return_status rs ON rh.return_status_id = rs.return_status_id WHERE rh.return_id = '" . (int)$return_id . "' AND rs.language_id = '" . (int)$this->config->get('config_language_id') . "' ORDER BY rh.date_added ASC LIMIT " . (int)$start . "," . (int)$limit);

        return $query->rows;
    }

    public function getTotalReturnHistories($return_id) {
        $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "return_history WHERE return_id = '" . (int)$return_id . "'");

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

    public function getTotalReturnHistoriesByReturnStatusId($return_status_id) {
        $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "return_history WHERE return_status_id = '" . (int)$return_status_id . "'");

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

}