/*******************************************************************************
 * Copyright (c) 2016 Guilherme M. Ferreira <guilherme.maciel.ferreira@gmail.com>
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Eclipse Distribution License v1.0 which accompany this distribution.
 *
 * The Eclipse Public License is available at
 *    http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 *   http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *    Guilherme M. Ferreira - initial implementation and documentation
 *    Frank Pagliughi - added copy & move operations
 *******************************************************************************/

#include "mqtt/will_options.h"
#include <utility>
#include <cstring>

namespace mqtt {

#if __cplusplus < 201703L
	constexpr int  will_options::DFLT_QOS;
	constexpr bool will_options::DFLT_RETAINED;
#endif

const MQTTAsync_willOptions will_options::DFLT_C_STRUCT = MQTTAsync_willOptions_initializer;

/////////////////////////////////////////////////////////////////////////////

will_options::will_options() : opts_(DFLT_C_STRUCT)
{
	set_topic(string());
//	set_payload(binary_ref());
}

will_options::will_options(string_ref top,
						   const void *payload, size_t payloadlen,
						   int qos, bool retained)
		: opts_(DFLT_C_STRUCT)
{
	opts_.qos = qos;
	opts_.retained = retained;
	set_topic(std::move(top));
	set_payload(binary_ref(static_cast<const binary_ref::value_type*>(payload), payloadlen));
}

will_options::will_options(const topic& top,
						   const void *payload, size_t payloadlen,
						   int qos, bool retained)
		: will_options(top.get_name(), payload, payloadlen, qos, retained)
{
}


will_options::will_options(string_ref top, binary_ref payload,
						   int qos, bool retained)
		: opts_(DFLT_C_STRUCT)
{
	opts_.qos = qos;
	opts_.retained = retained;
	set_topic(std::move(top));
	set_payload(std::move(payload));
}

will_options::will_options(string_ref top, const string& payload,
						   int qos, bool retained)
		: opts_(DFLT_C_STRUCT)
{
	opts_.qos = qos;
	opts_.retained = retained;
	set_topic(std::move(top));
	set_payload(payload);
}

will_options::will_options(const message& msg)
	: will_options(msg.get_topic(), msg.get_payload(), msg.get_qos(), msg.is_retained())
{
}

will_options::will_options(const will_options& opt) : opts_(opt.opts_)
{
	set_topic(opt.topic_);
	set_payload(opt.payload_);
}

will_options::will_options(will_options&& other) : opts_(other.opts_)
{
	set_topic(std::move(other.topic_));
	set_payload(std::move(other.payload_));
}

will_options& will_options::operator=(const will_options& rhs)
{
	if (&rhs != this) {
		opts_ = rhs.opts_;
		set_topic(rhs.topic_);
		set_payload(rhs.payload_);
	}
	return *this;
}

will_options& will_options::operator=(will_options&& rhs)
{
	if (&rhs != this) {
		opts_ = rhs.opts_;
		set_topic(std::move(rhs.topic_));
		set_payload(std::move(rhs.payload_));
	}
	return *this;
}

void will_options::set_topic(string_ref top)
{
	topic_ = top ? std::move(top) : string_ref(string());
	opts_.topicName = topic_.c_str();
}

void will_options::set_payload(binary_ref msg)
{
	// The C struct payload must not be nullptr for will options
	payload_ = msg ? std::move(msg) : binary_ref(binary());

	opts_.payload.len = (int) payload_.size();
	opts_.payload.data = payload_.data();
}

/////////////////////////////////////////////////////////////////////////////

} // end namespace mqtt