/*
 * Copyright (c) 2010-2018 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#include <Swiften/Parser/PayloadParsers/IBBParser.h>

#include <boost/lexical_cast.hpp>

#include <Swiften/StringCodecs/Base64.h>

namespace Swift {

IBBParser::IBBParser() : level(TopLevel) {
}

IBBParser::~IBBParser() {
}

void IBBParser::handleStartElement(const std::string& element, const std::string&, const AttributeMap& attributes) {
    if (level == TopLevel) {
        if (element == "data") {
            getPayloadInternal()->setAction(IBB::Data);
            getPayloadInternal()->setStreamID(attributes.getAttribute("sid"));
            try {
                getPayloadInternal()->setSequenceNumber(boost::lexical_cast<int>(attributes.getAttribute("seq")));
            }
            catch (boost::bad_lexical_cast&) {
            }
        }
        else if (element == "open") {
            getPayloadInternal()->setAction(IBB::Open);
            getPayloadInternal()->setStreamID(attributes.getAttribute("sid"));
            if (attributes.getAttribute("stanza") == "message") {
                getPayloadInternal()->setStanzaType(IBB::MessageStanza);
            }
            else {
                getPayloadInternal()->setStanzaType(IBB::IQStanza);
            }
            try {
                getPayloadInternal()->setBlockSize(boost::lexical_cast<unsigned int>(attributes.getAttribute("block-size")));
            }
            catch (boost::bad_lexical_cast&) {
            }
        }
        else if (element == "close") {
            getPayloadInternal()->setAction(IBB::Close);
            getPayloadInternal()->setStreamID(attributes.getAttribute("sid"));
        }
    }
    ++level;
}

void IBBParser::handleEndElement(const std::string& element, const std::string&) {
    --level;
    if (level == TopLevel) {
        if (element == "data") {
            std::vector<char> data;
            for (char c : currentText) {
                if ((c >= 48 && c <= 122) || c == 47 || c == 43) {
                    data.push_back(c);
                }
            }
            getPayloadInternal()->setData(Base64::decode(std::string(&data[0], data.size())));
        }
    }
}

void IBBParser::handleCharacterData(const std::string& data) {
    currentText += data;
}


}