<?php defined('BX_DOL') or die('hack attempt');
/**
 * Copyright (c) UNA, Inc - https://una.io
 * MIT License - https://opensource.org/licenses/MIT
 *
 * @defgroup    UnaCore UNA Core
 * @{
 */

class BxDolPrivacyQuery extends BxDolDb
{
    protected $_aObject;

    protected $_sTable;
    protected $_sFieldId;
    protected $_sFieldOwnerId;

    protected $_sCachePrivacyObject;
    protected $_sCachePrivacyObjectDefault;

    protected $_sCacheGroup;
    protected $_sCacheGroupFriends;
    protected $_sCacheGroupsActive;

    protected $_sCacheTestedObject;

    public function __construct()
    {
        parent::__construct();
        $this->_aObject = array();

        $this->_sCachePrivacyObject = 'sys_privacy_object_';
        $this->_sCachePrivacyObjectDefault = 'sys_privacy_object_default_';

        $this->_sCacheGroup = 'sys_privacy_group_';
        $this->_sCacheGroupFriends = 'sys_privacy_group_friends_';
        $this->_sCacheGroupsActVis = 'sys_privacy_group_act_vis';

        $this->_sCacheTestedObject = 'sys_privacy_tested_object_';
    }

    static public function getPrivacyObject($sObject)
    {
        $oDb = BxDolDb::getInstance();

        $sQuery = $oDb->prepare("SELECT * FROM `sys_objects_privacy` WHERE `object` = ?", $sObject);

        $aObject = $oDb->getRow($sQuery);
        if(!$aObject || !is_array($aObject))
            return false;

        return $aObject;
    }

    public function init($aObject = array())
    {
        if(empty($aObject) || !is_array($aObject)) 
            return;

        $this->_aObject = $aObject;

        $this->_sTable = $this->_aObject['table'];
        $this->_sFieldId = $this->_aObject['table_field_id'];
        $this->_sFieldOwnerId = $this->_aObject['table_field_author'];
    }

    function getObjectInfo($sAction, $iObjectId)
    {
        if(empty($this->_sTable) || empty($this->_sFieldId) || empty($this->_sFieldOwnerId))
            return array();

        $sQuery = $this->prepare("SELECT `" . $this->_sFieldOwnerId . "` AS `owner_id`, `" . $sAction . "` AS `group_id` FROM `" . $this->_sTable . "` WHERE `" . $this->_sFieldId . "`=? LIMIT 1", $iObjectId);

        $sCacheKey = $this->_sCacheTestedObject . $this->_sTable . '_' . $this->_aObject['action'] . '_' . $iObjectId;
        return $this->fromMemory($sCacheKey, 'getRow', $sQuery);
    }

    function getGroupsBy($aParams)
    {
        switch($aParams['type']) {
            case 'id':
                $sCacheFunction = 'fromCache';
                $sCacheName = $this->_sCacheGroup . $aParams['id'];
                $sMethod = 'getRow';
                $sWhereClause = $this->prepareAsString("`id`=?", (int)$aParams['id']);
                break;

            case 'active':
                $sCacheFunction = 'fromMemory';
                $sCacheName = $this->_sCacheGroupsActVis;
                $sMethod = 'getAll';
                $sWhereClause = "`active`='1' AND `visible`='1'";
                break;
        }

        $sSql = "SELECT
                   `id`,
                   `title`,
                   `check`,
                   `active`
                FROM `sys_privacy_groups`
                WHERE " . $sWhereClause;

        return !empty($sCacheFunction) && !empty($sCacheName) ? $this->$sCacheFunction($sCacheName, $sMethod, $sSql) : $this->$sMethod($sSql);
    }

    function getActions($iOwnerId)
    {
        $sQuery = $this->prepare("SELECT
                    `tm`.`uri` AS `module_uri`,
                    `tm`.`title` AS `module_title`,
                    `ta`.`id` AS `action_id`,
                    `ta`.`title` AS `action_title`,
                    `ta`.`default_group` AS `action_default_value`,
                    `td`.`group_id` AS `default_value`
                FROM `sys_objects_privacy` AS `ta`
                LEFT JOIN `sys_privacy_defaults` AS `td` ON `ta`.`id`=`td`.`action_id` AND `td`.`owner_id`=?
                INNER JOIN `sys_modules` AS `tm` ON `ta`.`module`=`tm`.`uri`
                WHERE 1
                ORDER BY `tm`.`title`", $iOwnerId);

        return $this->getAll($sQuery);
    }

    function getTitle($sModule, $sAction)
    {
        $aAction = $this->_getAction($sModule, $sAction);
        return !empty($aAction) && isset($aAction['title']) ? $aAction['title'] : '';
    }

    function getDefaultGroup($sModule, $sAction)
    {
        $aAction = $this->_getAction($sModule, $sAction);
        return !empty($aAction) && isset($aAction['default_group']) ? $aAction['default_group'] : BX_DOL_PG_DEFAULT;
    }

    function getDefaultGroupByUser($sModule, $sAction, $iOwnerId)
    {
        $sQuery = $this->prepare("SELECT
               `td`.`group_id`
            FROM `sys_objects_privacy` AS `ta`
            LEFT JOIN `sys_privacy_defaults` AS `td` ON `ta`.`id`=`td`.`action_id` AND `td`.`owner_id`=?
            WHERE
                `ta`.`module`=? AND `ta`.`action`=?
            LIMIT 1", $iOwnerId, $sModule, $sAction);

        $sCacheKey = $this->_sCachePrivacyObjectDefault . $sModule . '_' . $sAction . '_' . $iOwnerId;
        return $this->fromMemory($sCacheKey, 'getOne', $sQuery);
    }

    function replaceDefaulfGroup($iActionId, $iOwnerId, $iGroupId)
    {
        $sSql = $this->prepare("REPLACE INTO
                `sys_privacy_defaults`
            SET
                `owner_id`=?,
                `action_id`=?,
                `group_id`=?", $iOwnerId, $iActionId, $iGroupId);

        return $this->query($sSql);
    }

    function getContentByGroupAsSQLPart($sField, $mixedGroupId)
    {
        if(is_array($mixedGroupId))
            $sWhere = " AND `" . $this->_sTable . "`.`" . $sField . "` IN (" . $this->implode_escape($mixedGroupId) . ")";
        else
            $sWhere = $this->prepareAsString(" AND `" . $this->_sTable . "`.`" . $sField . "` = ?", $mixedGroupId);

        return array(
            'where' => $sWhere
        );
    }

    protected function _getAction($sModule, $sAction)
    {
        $sQuery = $this->prepare("SELECT
                `id`,
                `module`,
                `action`,
                `title`,
                `default_group`
            FROM `sys_objects_privacy` AS `ta`
            WHERE `module`=? AND `action`=?
            LIMIT 1", $sModule, $sAction);

        $sCacheKey = $this->_sCachePrivacyObject . $sModule . '_' . $sAction;
        return $this->fromCache($sCacheKey, 'getRow', $sQuery);
    }
}

/** @} */