//
// VMime library (http://www.vmime.org)
// Copyright (C) 2002 Vincent Richard <vincent@vmime.org>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 3 of
// the License, or (at your option) any later version.
//
// 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// Linking this library statically or dynamically with other modules is making
// a combined work based on this library.  Thus, the terms and conditions of
// the GNU General Public License cover the whole combination.
//

#include "vmime/messageIdSequence.hpp"
#include "vmime/exception.hpp"

#include <algorithm>


namespace vmime {


messageIdSequence::messageIdSequence() {

}


messageIdSequence::~messageIdSequence() {

	removeAllMessageIds();
}


messageIdSequence::messageIdSequence(const messageIdSequence& midSeq)
	: headerFieldValue() {

	copyFrom(midSeq);
}


shared_ptr <component> messageIdSequence::clone() const {

	return make_shared <messageIdSequence>(*this);
}


void messageIdSequence::copyFrom(const component& other) {

	const messageIdSequence& midSeq = dynamic_cast <const messageIdSequence&>(other);

	removeAllMessageIds();

	for (unsigned int i = 0 ; i < midSeq.m_list.size() ; ++i) {
		m_list.push_back(vmime::clone(midSeq.m_list[i]));
	}
}


messageIdSequence& messageIdSequence::operator=(const messageIdSequence& other) {

	copyFrom(other);
	return *this;
}


const std::vector <shared_ptr <component> > messageIdSequence::getChildComponents() {

	std::vector <shared_ptr <component> > res;

	copy_vector(m_list, res);

	return res;
}


void messageIdSequence::parseImpl(
	const parsingContext& ctx,
	const string& buffer,
	const size_t position,
	const size_t end,
	size_t* newPosition
) {

	removeAllMessageIds();

	size_t pos = position;

	while (pos < end) {

		shared_ptr <messageId> parsedMid = messageId::parseNext(ctx, buffer, pos, end, &pos);

		if (parsedMid) {
			m_list.push_back(parsedMid);
		}
	}

	setParsedBounds(position, end);

	if (newPosition) {
		*newPosition = end;
	}
}


void messageIdSequence::generateImpl(
	const generationContext& ctx,
	utility::outputStream& os,
	const size_t curLinePos,
	size_t* newLinePos
) const {

	size_t pos = curLinePos;

	if (!m_list.empty()) {

		generationContext tmpCtx(ctx);
		tmpCtx.setMaxLineLength(ctx.getMaxLineLength() - 2);

		for (std::vector <shared_ptr <messageId> >::const_iterator it = m_list.begin() ; ; ) {

			(*it)->generate(ctx, os, pos, &pos);

			if (++it == m_list.end()) {
				break;
			}

			os << " ";
			pos++;
		}
	}

	if (newLinePos) {
		*newLinePos = pos;
	}
}


void messageIdSequence::appendMessageId(const shared_ptr <messageId>& mid) {

	m_list.push_back(mid);
}


void messageIdSequence::insertMessageIdBefore(
	const shared_ptr <messageId>& beforeMid,
	const shared_ptr <messageId>& mid
) {

	const std::vector <shared_ptr <messageId> >::iterator it =
		std::find(m_list.begin(), m_list.end(), beforeMid);

	if (it == m_list.end()) {
		throw exceptions::no_such_message_id();
	}

	m_list.insert(it, mid);
}


void messageIdSequence::insertMessageIdBefore(
	const size_t pos,
	const shared_ptr <messageId>& mid
) {

	m_list.insert(m_list.begin() + pos, mid);
}


void messageIdSequence::insertMessageIdAfter(
	const shared_ptr <messageId>& afterMid,
	const shared_ptr <messageId>& mid
) {

	const std::vector <shared_ptr <messageId> >::iterator it =
		std::find(m_list.begin(), m_list.end(), afterMid);

	if (it == m_list.end()) {
		throw exceptions::no_such_message_id();
	}

	m_list.insert(it + 1, mid);
}


void messageIdSequence::insertMessageIdAfter(
	const size_t pos,
	const shared_ptr <messageId>& mid
) {

	m_list.insert(m_list.begin() + pos + 1, mid);
}


void messageIdSequence::removeMessageId(const shared_ptr <messageId>& mid)
{
	const std::vector <shared_ptr <messageId> >::iterator it =
		std::find(m_list.begin(), m_list.end(), mid);

	if (it == m_list.end()) {
		throw exceptions::no_such_message_id();
	}

	m_list.erase(it);
}


void messageIdSequence::removeMessageId(const size_t pos) {

	const std::vector <shared_ptr <messageId> >::iterator it = m_list.begin() + pos;

	m_list.erase(it);
}


void messageIdSequence::removeAllMessageIds() {

	m_list.clear();
}


size_t messageIdSequence::getMessageIdCount() const {

	return m_list.size();
}


bool messageIdSequence::isEmpty() const {

	return m_list.empty();
}


const shared_ptr <messageId> messageIdSequence::getMessageIdAt(const size_t pos) {

	return m_list[pos];
}


const shared_ptr <const messageId> messageIdSequence::getMessageIdAt(const size_t pos) const {

	return m_list[pos];
}


const std::vector <shared_ptr <const messageId> > messageIdSequence::getMessageIdList() const {

	std::vector <shared_ptr <const messageId> > list;

	list.reserve(m_list.size());

	for (std::vector <shared_ptr <messageId> >::const_iterator it = m_list.begin() ;
	     it != m_list.end() ; ++it) {

		list.push_back(*it);
	}

	return list;
}


const std::vector <shared_ptr <messageId> > messageIdSequence::getMessageIdList() {

	return m_list;
}


} // vmime