<?php
/**
 * Extend class to add own methods as needed
 */
class DigiMinaGroup extends ElggObject {

	/**
	 * Set subtype to dmgroup.
	 */
	protected function initializeAttributes() {
		parent::initializeAttributes();

		$this->attributes['subtype'] = "dmgroup";
	}

	/**
	 * Get list of dmgroup members.
	 *
	 * @param int $limit   Limit
	 * @param int $offset  Offset
	 * @param bool $count  Count
	 * @param bool $buname Order by user name
	 *
	 * @return mixed
	 */
	public function getMembers($limit = 10, $offset = 0, $count = false, $byname = false) {
		return get_dmgroup_members($this->getGUID(), $limit, $offset, 0, $count, $byname);
	}

	/**
	 * Returns whether the current dmgroup is public membership or not.
	 *
	 * @returns bool
	 */
	public function isPublicMembership() {
		if ($this->membership == ACCESS_PUBLIC) {
			return true;
		}
		return false;
	}

	/**
	 * Return whether a given user is a member of this dmgroup or not.
	 *
	 * @param ElggUser $user User
	 *
	 * @reurn bool
	 */
	public function isMember($user = 0) {
		if (!($user instanceof ElggUser)) {
			$user = elgg_get_logged_in_user_entity();
		}
		if (!($user instanceof ElggUser)) {
			return false;
		}
		return is_dmgroup_member($this->getGUID(), $user->getGUID());
	}

	/**
	 * Join an elgg user to this dmgroup.
	 *
	 * @param ElggUser $user User
	 *
	 * @return bool
	 */
	public function join(ElggUser $user) {
		return join_dmgroup($this->getGUID(), $user->getGUID());
	}

	/**
	 * Remove a user from the group.
	 *
	 * @param ElggUser $user User
	 *
	 * @return void
	 */
	public function leave(ElggUser $user) {
		return leave_dmgroup($this->getGUID(), $user->getGUID());
	}
}