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/*
 * Copyright (c) 2010-2015 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#include <Swiften/Roster/XMPPRosterImpl.h>

#include <Swiften/Base/foreach.h>

namespace Swift {

XMPPRosterImpl::XMPPRosterImpl() {
}

XMPPRosterImpl::~XMPPRosterImpl() {

}

void XMPPRosterImpl::addContact(const JID& jid, const std::string& name, const std::vector<std::string>& groups, RosterItemPayload::Subscription subscription) {
    JID bareJID(jid.toBare());
    std::map<JID, XMPPRosterItem>::iterator i = entries_.find(bareJID);
    if (i != entries_.end()) {
        std::string oldName = i->second.getName();
        std::vector<std::string> oldGroups = i->second.getGroups();
        i->second = XMPPRosterItem(jid, name, groups, subscription);
        onJIDUpdated(bareJID, oldName, oldGroups);
    }
    else {
        entries_.insert(std::make_pair(bareJID, XMPPRosterItem(jid, name, groups, subscription)));
        onJIDAdded(bareJID);
    }
}

void XMPPRosterImpl::removeContact(const JID& jid) {
    entries_.erase(JID(jid.toBare()));
    onJIDRemoved(jid);
}

void XMPPRosterImpl::clear() {
    entries_.clear();
    onRosterCleared();
}

bool XMPPRosterImpl::containsJID(const JID& jid) {
    return entries_.find(JID(jid.toBare())) != entries_.end();
}

std::string XMPPRosterImpl::getNameForJID(const JID& jid) const {
    std::map<JID, XMPPRosterItem>::const_iterator i = entries_.find(jid.toBare());
    if (i != entries_.end()) {
        return i->second.getName();
    }
    else {
        return "";
    }
}

std::vector<std::string> XMPPRosterImpl::getGroupsForJID(const JID& jid) {
    std::map<JID, XMPPRosterItem>::iterator i = entries_.find(jid.toBare());
    if (i != entries_.end()) {
        return i->second.getGroups();
    }
    else {
        return std::vector<std::string>();
    }
}

RosterItemPayload::Subscription XMPPRosterImpl::getSubscriptionStateForJID(const JID& jid) {
    std::map<JID, XMPPRosterItem>::iterator i = entries_.find(jid.toBare());
    if (i != entries_.end()) {
        return i->second.getSubscription();
    }
    else {
        return RosterItemPayload::None;
    }
}

std::vector<XMPPRosterItem> XMPPRosterImpl::getItems() const {
    std::vector<XMPPRosterItem> result;
    foreach(const RosterMap::value_type& entry, entries_) {
        result.push_back(entry.second);
    }
    return result;
}

boost::optional<XMPPRosterItem> XMPPRosterImpl::getItem(const JID& jid) const {
    std::map<JID, XMPPRosterItem>::const_iterator i = entries_.find(jid.toBare());
    if (i != entries_.end()) {
        return i->second;
    }
    else {
        return boost::optional<XMPPRosterItem>();
    }
}

std::set<std::string> XMPPRosterImpl::getGroups() const {
    std::set<std::string> result;
    foreach(const RosterMap::value_type& entry, entries_) {
        std::vector<std::string> groups = entry.second.getGroups();
        result.insert(groups.begin(), groups.end());
    }
    return result;
}

}