<?php

/**
 * Groups - Groups 
/**
 * Groups - Groups class
 *
 * @package workflow.engine.ProcessMaker
 * @copyright 2007 COLOSA
 */
class Groups
{

    /**
     * Get the assigned users of a group
     *
     * @param string $sGroupUID
     * @return array
     * @throws Exception
     */
    public function getUsersOfGroup($sGroupUID, $statusUser = 'ACTIVE')
    {
        try {
            $aUsers = array();
            $oCriteria = new Criteria();
            $oCriteria->addJoin(UsersPeer::USR_UID, GroupUserPeer::USR_UID, Criteria::LEFT_JOIN);
            $oCriteria->add(GroupUserPeer::GRP_UID, $sGroupUID);
            if($statusUser !== 'ALL'){
                $oCriteria->add(UsersPeer::USR_STATUS, $statusUser);
            }
            $oDataset = UsersPeer::doSelectRS($oCriteria);
            $oDataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
            $oDataset->next();

            while ($aRow = $oDataset->getRow()) {
                $aUsers[] = $aRow;
                $oDataset->next();
            }
            return $aUsers;
        } catch (exception $oError) {
            throw ($oError);
        }
    }

    /**
     * Get the active groups for an user
     *
     * @param string $sUserUID
     * @return array
     */
    public function getActiveGroupsForAnUser($sUserUID)
    {
        try {
            $oCriteria = new Criteria();
            $oCriteria->addSelectColumn(GroupUserPeer::GRP_UID);
            $oCriteria->addSelectColumn(GroupwfPeer::GRP_STATUS);
            $oCriteria->add(GroupUserPeer::USR_UID, $sUserUID);
            $oCriteria->add(GroupwfPeer::GRP_STATUS, 'ACTIVE');
            $oCriteria->addJoin(GroupUserPeer::GRP_UID, GroupwfPeer::GRP_UID, Criteria::LEFT_JOIN);
            $oDataset = GroupUserPeer::doSelectRS($oCriteria);
            $oDataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
            $oDataset->next();

            $aGroups = array();
            $aRow = $oDataset->getRow();
            while (is_array($aRow)) {
                $aGroups[] = $aRow['GRP_UID'];
                $oDataset->next();
                $aRow = $oDataset->getRow();
            }
            return $aGroups;
        } catch (exception $oError) {
            throw ($oError);
        }
    }

    /**
     * Get the IDs of the active groups for an user
     *
     * @param string $usrUid
     *
     * @return array
     * @throws Exception
     */
    public function getActiveGroupsForAnUserById($usrUid)
    {
        try {
            $criteria = new Criteria();
            $criteria->addSelectColumn(GroupUserPeer::GRP_ID);
            $criteria->addJoin(GroupUserPeer::GRP_ID, GroupwfPeer::GRP_ID, Criteria::LEFT_JOIN);
            //@todo: we need to add a new column  GROUP_USER.USR_ID
            $criteria->add(GroupUserPeer::USR_UID, $usrUid);
            //@todo: we need to add a new column  GROUPWF.GRP_STATUS_ID
            $criteria->add(GroupwfPeer::GRP_STATUS, 'ACTIVE');
            $dataset = GroupUserPeer::doSelectRS($criteria);
            $dataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
            $dataset->next();

            //If the user does not relate with any group we will to return a default value for avoiding problems with the IN
            $groups = [-1];
            $row = $dataset->getRow();
            while (is_array($row)) {
                $groups[] = $row['GRP_ID'];
                $dataset->next();
                $row = $dataset->getRow();
            }

            return $groups;
        } catch (Exception $error) {
            throw ($error);
        }
    }


    /**
     * Set a user to group
     *
     * @param string $grpUid
     * @param string $usrUid
     * @return boolean
     * @throws exception
     */
    public function addUserToGroup($grpUid, $usrUid)
    {
        try {
            //Check the usrUid value
            if (RBAC::isGuestUserUid($usrUid)) {
                throw new Exception(G::LoadTranslation("ID_USER_CAN_NOT_UPDATE", array($usrUid)));
                return false;
            }

            $groupUser = GroupUserPeer::retrieveByPk($grpUid, $usrUid);
            if (is_object($groupUser) && get_class($groupUser) == 'GroupUser') {
                return true;
            } else {
                $group = GroupwfPeer::retrieveByPK($grpUid);

                $groupUser = new GroupUser();
                $groupUser->setGrpUid($grpUid);
                $groupUser->setUsrUid($usrUid);
                $groupUser->setGrpId($group->getGrpId());
                $groupUser->Save();

                $users = new Users();
                $usrName = $users->load($usrUid);
                
                G::auditLog("AssignUserToGroup", "Assign user " . $usrName['USR_USERNAME'] . " (" . $usrUid . ") to group " . $group->getGrpTitle() . " (" . $grpUid . ") ");

                return true;
            }
        } catch (exception $oError) {
            throw ($oError);
        }
    }

    /**
     * Remove a user from group
     * @param string $grpUid
     * @param string $usrUid
     * @return array
     */
    public function removeUserOfGroup($grpUid, $usrUid)
    {
        $gu = new GroupUser();
        $gu->remove($grpUid, $usrUid);
    }

    /**
     * get all groups
     *
     * @param none
     * @return $objects
     */
    public function getAllGroups()
    {
        try {
            $criteria = new Criteria();
            $criteria->add(GroupwfPeer::GRP_UID, "", Criteria::NOT_EQUAL);
            $con = Propel::getConnection(GroupwfPeer::DATABASE_NAME);
            $objects = GroupwfPeer::doSelect($criteria, $con);
            return $objects;
        } catch (exception $e) {
            throw $e;
        }
    }

    /**
     * get all the groups from a single user
     *
     * @param $sUserUid user uid
     * @return an array of group objects
     */
    public function getUserGroups($sUserUID)
    {
        try {
            $criteria = new Criteria();
            $criteria->add(GroupwfPeer::GRP_UID, "", Criteria::NOT_EQUAL);
            $criteria->add(GroupUserPeer::USR_UID, $sUserUID);
            $criteria->add(GroupwfPeer::GRP_STATUS, 'ACTIVE');
            $criteria->addJoin(GroupUserPeer::GRP_UID, GroupwfPeer::GRP_UID, Criteria::LEFT_JOIN);
            $con = Propel::getConnection(GroupwfPeer::DATABASE_NAME);
            $objects = GroupwfPeer::doSelect($criteria, $con);
            return $objects;
        } catch (exception $e) {
            throw $e;
        }
    }

    /**
     * Get Available Groups for a single user
     *
     * @author Qennix
     * @param string $sUserUid
     * @return object
     */
    public function getAvailableGroupsCriteria($sUserUid, $filter = '')
    {
        try {
            $oCriteria = new Criteria('workflow');
            $oCriteria->addSelectColumn(GroupUserPeer::GRP_UID);
            $oCriteria->add(GroupUserPeer::USR_UID, $sUserUid);
            $oCriteria->add(GroupUserPeer::GRP_UID, '', Criteria::NOT_EQUAL);
            $oDataset = GroupUserPeer::doSelectRS($oCriteria);
            $oDataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
            $oDataset->next();
            $gUIDs = array();
            while ($aRow = $oDataset->getRow()) {
                $gUIDs[] = $aRow['GRP_UID'];
                $oDataset->next();
            }
            $oCriteria = new Criteria('workflow');
            $oCriteria->addSelectColumn(GroupwfPeer::GRP_UID);
            $oCriteria->addSelectColumn(GroupwfPeer::GRP_STATUS);
            $oCriteria->addAsColumn('CON_VALUE',GroupwfPeer::GRP_TITLE);
            $oCriteria->addAscendingOrderByColumn(GroupwfPeer::GRP_TITLE);
            $oCriteria->add(GroupwfPeer::GRP_UID, $gUIDs, Criteria::NOT_IN);
            $oCriteria->add(GroupwfPeer::GRP_STATUS, 'ACTIVE');
            if ($filter != '') {
                $oCriteria->add(GroupwfPeer::GRP_TITLE, '%' . $filter . '%', Criteria::LIKE);
            }
            return $oCriteria;
        } catch (exception $e) {
            throw $e;
        }
    }

    /**
     * Get Assigned Groups for a single user
     *
     * @author Qennix
     * @param string $sUserUid
     * @return object
     */
    public function getAssignedGroupsCriteria($sUserUid, $filter = '')
    {
        try {
            $oCriteria = new Criteria('workflow');
            $oCriteria->addSelectColumn(GroupwfPeer::GRP_UID);
            $oCriteria->addSelectColumn(GroupwfPeer::GRP_STATUS);
            $oCriteria->addSelectColumn(GroupwfPeer::GRP_LDAP_DN);
            $oCriteria->addAsColumn('CON_VALUE',GroupwfPeer::GRP_TITLE);
            $oCriteria->addAscendingOrderByColumn(GroupwfPeer::GRP_TITLE);
            $oCriteria->addJoin(GroupUserPeer::GRP_UID, GroupwfPeer::GRP_UID, Criteria::LEFT_JOIN);
            $oCriteria->add(GroupUserPeer::USR_UID, $sUserUid, Criteria::EQUAL);
            $oCriteria->add(GroupwfPeer::GRP_STATUS, 'ACTIVE');
            if ($filter != '') {
                $oCriteria->add(GroupwfPeer::GRP_TITLE, '%' . $filter . '%', Criteria::LIKE);
            }
            return $oCriteria;
        } catch (exception $e) {
            throw $e;
        }
    }

    public function getGroupsForUser($usrUid)
    {
        $criteria = $this->getAssignedGroupsCriteria($usrUid);
        $criteria->addAscendingOrderByColumn(GroupwfPeer::GRP_TITLE);
        $dataset = GroupwfPeer::doSelectRS($criteria);
        $dataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
        $dataset->next();
        $groups = array();
        while ($row = $dataset->getRow()) {
            if (!isset($groups[$row['GRP_UID']])) {
                $groups[$row['GRP_UID']] = $row;
            }
            $dataset->next();
        }
        return $groups;
    }

    /**
     * Remove a user from all groups
     *
     * @param string $sUsrUid
     * @return void
     */
    public function removeUserOfAllGroups($sUserUID = '')
    {
        try {
            $oCriteria = new Criteria('workflow');
            $oCriteria->add(GroupUserPeer::USR_UID, $sUserUID);
            GroupUserPeer::doDelete($oCriteria);
        } catch (exception $oError) {
            throw ($oError);
        }
    }

    /**
     * Get a criteria object of all users from group
     *
     * @param string $sGroupUID
     * @return array
     */
    public function getUsersGroupCriteria($sGroupUID = '')
    {
        require_once 'classes/model/GroupUser.php';
        require_once 'classes/model/Users.php';
        try {
            $oCriteria = new Criteria('workflow');
            $oCriteria->addSelectColumn(GroupUserPeer::GRP_UID);
            $oCriteria->addSelectColumn(UsersPeer::USR_UID);
            $oCriteria->addSelectColumn(UsersPeer::USR_USERNAME);
            $oCriteria->addSelectColumn(UsersPeer::USR_FIRSTNAME);
            $oCriteria->addSelectColumn(UsersPeer::USR_LASTNAME);
            $oCriteria->addSelectColumn(UsersPeer::USR_EMAIL);
            $oCriteria->addJoin(GroupUserPeer::USR_UID, UsersPeer::USR_UID, Criteria::LEFT_JOIN);
            $oCriteria->add(GroupUserPeer::GRP_UID, $sGroupUID);
            $oCriteria->add(UsersPeer::USR_STATUS, 'ACTIVE');
            return $oCriteria;
        } catch (exception $oError) {
            throw ($oError);
        }
    }

    /**
     * Get a criteria object of all groups from user
     *
     * @param string $sGroupUID
     * @return array
     */
    public function getUserGroupsCriteria($sUserUID = '')
    {
        require_once 'classes/model/GroupUser.php';
        require_once 'classes/model/Users.php';
        try {
            $oCriteria = new Criteria('workflow');
            $oCriteria->addSelectColumn(UsersPeer::USR_UID);
            $oCriteria->addSelectColumn(GroupUserPeer::GRP_UID);
            $oCriteria->addSelectColumn(UsersPeer::USR_FIRSTNAME);
            $oCriteria->addSelectColumn(UsersPeer::USR_LASTNAME);
            $oCriteria->addJoin(GroupUserPeer::USR_UID, UsersPeer::USR_UID, Criteria::LEFT_JOIN);
            $oCriteria->add(GroupUserPeer::GRP_UID, $sUserUID);
            $oCriteria->add(UsersPeer::USR_STATUS, 'ACTIVE');
            return $oCriteria;
        } catch (exception $oError) {
            throw ($oError);
        }
    }

    /**
     * Get the number of groups
     *
     * @param string $sGroupUid
     * @return integer $cnt
     */
    public function getNumberGroups($sUserUID)
    {
        try {
            $allGroups = $this->getUserGroups($sUserUID);
            $cnt = 0;
            foreach ($allGroups as $group) {
                $cnt++;
            }
            return $cnt;
        } catch (exception $oError) {
            print_r($oError);
        }
    }

    /**
     * Return the available users list criteria object
     *
     * @param string $sGroupUID
     * @return object
     */
    public function getAvailableUsersCriteria($sGroupUID = '')
    {
        try {
            $oCriteria = new Criteria('workflow');
            $oCriteria->addSelectColumn(UsersPeer::USR_UID);
            $oCriteria->addJoin(GroupUserPeer::USR_UID, UsersPeer::USR_UID, Criteria::LEFT_JOIN);
            $oCriteria->add(GroupUserPeer::GRP_UID, $sGroupUID);
            $oCriteria->add(UsersPeer::USR_STATUS, 'ACTIVE');
            $oDataset = UsersPeer::doSelectRS($oCriteria);
            $oDataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
            $oDataset->next();
            $aUIDs = array();
            while ($aRow = $oDataset->getRow()) {
                $aUIDs[] = $aRow['USR_UID'];
                $oDataset->next();
            }
            $oCriteria = new Criteria('workflow');
            $oCriteria->addSelectColumn(UsersPeer::USR_UID);
            $oCriteria->addSelectColumn(UsersPeer::USR_FIRSTNAME);
            $oCriteria->addSelectColumn(UsersPeer::USR_LASTNAME);
            $oCriteria->add(UsersPeer::USR_UID, $aUIDs, Criteria::NOT_IN);
            $oCriteria->add(UsersPeer::USR_STATUS, 'ACTIVE');
            return $oCriteria;
        } catch (exception $oError) {
            throw ($oError);
        }
    }

    /**
     * Verify if a user is assigned to a group
     *
     * @param $GrpUid group Uid
     * @param $UsrUid user Uid
     * @return 1/0 if it's or not assigned
     */
    public function verifyUsertoGroup($GrpUid, $UsrUid)
    {
        try {
            $oGrp = GroupUserPeer::retrieveByPk($GrpUid, $UsrUid);
            if (is_object($oGrp) && get_class($oGrp) == 'GroupUser') {
                return 1;
            } else {
                return 0;
            }
        } catch (exception $oError) {
            throw ($oError);
        }
    }

    /**
     * Verify the existence of a Group
     *
     * @param $sGroupUid group Uid
     * @return 1/0 if exist or not
     */
    public function verifyGroup($sGroupUID)
    {
        try {
            $aUsers = array();
            $oCriteria = new Criteria();
            //$oCriteria->addJoin(UsersPeer::USR_UID, GroupUserPeer::USR_UID, Criteria::LEFT_JOIN);
            $oCriteria->add(GroupwfPeer::GRP_UID, $sGroupUID);
            //$oCriteria->add(UsersPeer::USR_STATUS, 'ACTIVE');
            $oDataset = GroupwfPeer::doSelectRS($oCriteria);
            $oDataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
            $oDataset->next();
            $aRow = $oDataset->getRow();
            if (is_array($aRow)) {
                return 1;
            } else {
                return 0;
            }
        } catch (exception $oError) {
            throw ($oError);
        }
    }

    /**
     * Load all the data of a group with a search based on it uid
     *
     * @param $GrpUid group uid
     * @return an array of objects/false/exception object
     *
     */
    public function load($GrpUid)
    {
        try {
            $criteria = new Criteria();
            $criteria->add(GroupwfPeer::GRP_UID, $GrpUid, Criteria::EQUAL);
            $con = Propel::getConnection(GroupwfPeer::DATABASE_NAME);
            $objects = GroupwfPeer::doSelect($criteria, $con);
            if (is_array($objects) && count($objects) > 0) {
                return $objects[0];
            } else {
                return false;
            }
        } catch (exception $e) {
            throw $e;
        }
    }
}