/**
 * Tigase XMPP Server - The instant messaging server
 * Copyright (C) 2004 Tigase, Inc. (office@tigase.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, version 3 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. Look for COPYING file in the top folder.
 * If not, see http://www.gnu.org/licenses/.
 */
/*
AS:Description: Change user inter-domain communication permission.
AS:CommandId: user-domain-perm
AS:Component: sess-man
*/

package tigase.admin

import tigase.db.UserNotFoundException
import tigase.db.UserRepository
import tigase.server.Command
import tigase.server.Iq
import tigase.vhosts.VHostManagerIfc
import tigase.vhosts.filter.CustomDomainFilter
import tigase.vhosts.filter.DomainFilterPolicy
import tigase.xmpp.impl.DomainFilter

def vhost_man = (VHostManagerIfc) vhostMan

def JID = "jid"
def FILTERING_POLICY = "fiteringPolicy"
def FILTERING_LIST = "filteringList"

def p = (Iq) packet
def jid = Command.getFieldValue(p, JID)
def domain = Command.getFieldValue(p, FILTERING_POLICY)
def domainList = Command.getFieldValue(p, FILTERING_LIST)

if (jid == null || domain == null || (domain == DomainFilterPolicy.LIST.name() && domainList == null)) {
	def res = (Iq) p.commandResult(Command.DataType.form);
	Command.addFieldValue(res, JID, jid ?: "", "jid-single", "User JID")
	def domainStr = [ ]
	DomainFilterPolicy.values().each { domainStr += it.name() }
	Command.addFieldValue(res, FILTERING_POLICY, domain ?: domainStr[0], "List of domains",
						  (String[]) domainStr, (String[]) domainStr)
	Command.addFieldValue(res, FILTERING_LIST, domainList ?: "", "text-single", "Domains List")
	return res
}

def bareJID = tigase.xmpp.jid.JID.jidInstanceNS(jid.toLowerCase()).getBareJID();

jid = bareJID.toString();

def repo = (UserRepository) userRepository


def admins = (Set) adminsSet
def stanzaFromBare = p.getStanzaFrom().getBareJID()
def isServiceAdmin = admins.contains(stanzaFromBare)

if (!isAllowedForDomain.apply(bareJID.getDomain())) {
	def result = p.commandResult(Command.DataType.result);
	Command.addTextField(result, "Error", "You do not have enough permissions to manage this domain");
	return result
}


try {
	def old_value = repo.getData(bareJID, null,
								 DomainFilter.ALLOWED_DOMAINS_KEY, null)
	def old_value_domains = "";

	if (DomainFilterPolicy.valuePoliciesWithDomainListStr().contains(old_value)) {
		old_value_domains = repo.getData(bareJID, null, DomainFilter.ALLOWED_DOMAINS_LIST_KEY, null)
	}

	if (domainList != null) {
		domainList = domainList.replaceAll("\\s", "")
	}
	def new_value = domain
	if (DomainFilterPolicy.valuePoliciesWithDomainListStr().contains(domain)) {
		if (DomainFilterPolicy.valueof(domain) == DomainFilterPolicy.CUSTOM) {
			try {
				CustomDomainFilter.parseRules(domainList)
			} catch (Exception e) {
				return "Error parsing rules: " + domainList
			}
		}
		repo.setData(bareJID, null, DomainFilter.ALLOWED_DOMAINS_LIST_KEY, domainList)
	}
	repo.setData(bareJID, null, DomainFilter.ALLOWED_DOMAINS_KEY, new_value)

	return "Changed an old value: $old_value (domains list: $old_value_domains) to a new value: $new_value (domains list: $domainList) for user: $jid"
} catch (e) {
	if (e in UserNotFoundException) {
		return "The user $jid was not found in the user repository"
	} else {
		return "Unexpected error: " + e
	}
}
