/*
 * libMaia - maiaXmlRpcClient.cpp
 * Copyright (c) 2007 Sebastian Wiedenroth <wiedi@frubar.net>
 *                and Karl Glatz
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "maiaXmlRpcClient.h"
#include "maiaFault.h"
#include "networkaccessmanager.h"

MaiaXmlRpcClient::MaiaXmlRpcClient(QObject* parent) : QObject(parent),
	manager(0), request()
{
	init();
}

MaiaXmlRpcClient::MaiaXmlRpcClient(QUrl url, QObject* parent) : QObject(parent),
	manager(0), request(url)
{
	init();
	setUrl(url);
}

MaiaXmlRpcClient::MaiaXmlRpcClient(QUrl url, QString userAgent, QObject *parent) : QObject(parent) {
	// userAgent should adhere to RFC 1945 http://tools.ietf.org/html/rfc1945
	init();
	request.setRawHeader("User-Agent", userAgent.toAscii());
	setUrl(url);
}

void MaiaXmlRpcClient::init() {
	request.setRawHeader("User-Agent", "libmaia/0.2");
	request.setHeader(QNetworkRequest::ContentTypeHeader, "text/xml");
}

void MaiaXmlRpcClient::setUrl(QUrl url) {
	if(!url.isValid())
		return;

	request.setUrl(url);
}

void MaiaXmlRpcClient::setUserAgent(QString userAgent) {
	request.setRawHeader("User-Agent", userAgent.toAscii());
}

QNetworkReply* MaiaXmlRpcClient::call(QString method, QList<QVariant> args,
							QObject* responseObject, const char* responseSlot,
							QObject* faultObject, const char* faultSlot) {
	MaiaObject* call = new MaiaObject(this);
	connect(call, SIGNAL(aresponse(QVariant &, QNetworkReply *)), responseObject, responseSlot);
	connect(call, SIGNAL(fault(int, const QString &, QNetworkReply *)), faultObject, faultSlot);

    if (!manager) {
        manager=new NetworkAccessManager(this);

        connect(manager, SIGNAL(sslErrors(QNetworkReply *, const QList<QSslError> &)),
                this, SIGNAL(sslErrors(QNetworkReply *, const QList<QSslError> &)));
    }
	QNetworkReply* reply = manager->post( request,
		call->prepareCall(method, args).toUtf8() );
    connect(reply, SIGNAL(finished()),
                this, SLOT(replyFinished()));
	callmap[reply] = call;
	return reply;
}

void MaiaXmlRpcClient::setSslConfiguration(const QSslConfiguration &config) {
	request.setSslConfiguration(config);
}

QSslConfiguration MaiaXmlRpcClient::sslConfiguration () const {
	return request.sslConfiguration();
}

void MaiaXmlRpcClient::replyFinished() {
    QNetworkReply *reply=qobject_cast<QNetworkReply *>(sender());
    if (!reply) {
        return;
    }

	QString response;
	if(!callmap.contains(reply)) {
        reply->deleteLater();
		return;
    }
	if(reply->error() != QNetworkReply::NoError) {
		MaiaFault fault(-32300, reply->errorString());
		response = fault.toString();
	} else {
		response = QString::fromUtf8(reply->readAll());
	}

	// parseResponse deletes the MaiaObject
	callmap[reply]->parseResponse(response, reply);
	reply->deleteLater();
	callmap.remove(reply);
}