//
// 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/config.hpp"


#if VMIME_HAVE_MESSAGING_FEATURES && VMIME_HAVE_MESSAGING_PROTO_MAILDIR


#include "vmime/net/maildir/maildirStore.hpp"

#include "vmime/net/maildir/maildirFolder.hpp"
#include "vmime/net/maildir/maildirFormat.hpp"

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

#include "vmime/net/defaultConnectionInfos.hpp"


// Helpers for service properties
#define GET_PROPERTY(type, prop) \
	(getInfos().getPropertyValue <type>(getSession(), \
		dynamic_cast <const maildirServiceInfos&>(getInfos()).getProperties().prop))
#define HAS_PROPERTY(prop) \
	(getInfos().hasProperty(getSession(), \
		dynamic_cast <const maildirServiceInfos&>(getInfos()).getProperties().prop))


namespace vmime {
namespace net {
namespace maildir {


maildirStore::maildirStore(
	const shared_ptr <session>& sess,
	const shared_ptr <security::authenticator>& auth
)
	: store(sess, getInfosInstance(), auth),
	  m_connected(false) {

}


maildirStore::~maildirStore() {

	try {

		if (isConnected()) {
			disconnect();
		}

	} catch (...) {

		// Don't throw in destructor
	}
}


const string maildirStore::getProtocolName() const {

	return "maildir";
}


shared_ptr <folder> maildirStore::getRootFolder() {

	if (!isConnected()) {
		throw exceptions::illegal_state("Not connected");
	}

	return shared_ptr <maildirFolder>(
		new maildirFolder(
			folder::path(),
			dynamicCast <maildirStore>(shared_from_this())
		)
	);
}


shared_ptr <folder> maildirStore::getDefaultFolder() {

	if (!isConnected()) {
		throw exceptions::illegal_state("Not connected");
	}

	return shared_ptr <maildirFolder>(
		new maildirFolder(
			folder::path::component("inbox"),
			dynamicCast <maildirStore>(shared_from_this())
		)
	);
}


shared_ptr <folder> maildirStore::getFolder(const folder::path& path) {

	if (!isConnected()) {
		throw exceptions::illegal_state("Not connected");
	}

	return shared_ptr <maildirFolder>(
		new maildirFolder(
			path,
			dynamicCast <maildirStore>(shared_from_this())
		)
	);
}


bool maildirStore::isValidFolderName(const folder::path::component& name) const {

	if (!platform::getHandler()->getFileSystemFactory()->isValidPathComponent(name)) {
		return false;
	}

	const string& buf = name.getBuffer();

	// Name cannot start/end with spaces
	if (utility::stringUtils::trim(buf) != buf) {
		return false;
	}

	// Name cannot start with '.'
	const size_t length = buf.length();
	size_t pos = 0;

	while ((pos < length) && (buf[pos] == '.')) {
		++pos;
	}

	return (pos == 0);
}


void maildirStore::connect() {

	if (isConnected()) {
		throw exceptions::already_connected();
	}

	// Get root directory
	shared_ptr <utility::fileSystemFactory> fsf = platform::getHandler()->getFileSystemFactory();

	m_fsPath = fsf->stringToPath(GET_PROPERTY(string, PROPERTY_SERVER_ROOTPATH));

	shared_ptr <utility::file> rootDir = fsf->create(m_fsPath);

	// Try to create the root directory if it does not exist
	if (!(rootDir->exists() && rootDir->isDirectory())) {

		try {
			rootDir->createDirectory();
		} catch (exceptions::filesystem_exception& e) {
			throw exceptions::connection_error("Cannot create root directory.", e);
		}
	}

	m_format = maildirFormat::detect(dynamicCast <maildirStore>(shared_from_this()));

	m_connected = true;
}


bool maildirStore::isConnected() const {

	return m_connected;
}


bool maildirStore::isSecuredConnection() const {

	return false;
}


shared_ptr <connectionInfos> maildirStore::getConnectionInfos() const {

	return make_shared <defaultConnectionInfos>("localhost", static_cast <port_t>(0));
}


void maildirStore::disconnect() {

	for (std::list <maildirFolder*>::iterator it = m_folders.begin() ;
	     it != m_folders.end() ; ++it) {

		(*it)->onStoreDisconnected();
	}

	m_folders.clear();

	m_connected = false;
}


void maildirStore::noop() {

	// Nothing to do.
}


shared_ptr <maildirFormat> maildirStore::getFormat() {

	return m_format;
}


shared_ptr <const maildirFormat> maildirStore::getFormat() const {

	return m_format;
}


void maildirStore::registerFolder(maildirFolder* folder) {

	m_folders.push_back(folder);
}


void maildirStore::unregisterFolder(maildirFolder* folder) {

	std::list <maildirFolder*>::iterator it = std::find(m_folders.begin(), m_folders.end(), folder);

	if (it != m_folders.end()) {
		m_folders.erase(it);
	}
}


const utility::path& maildirStore::getFileSystemPath() const {

	return m_fsPath;
}


int maildirStore::getCapabilities() const {

	return CAPABILITY_CREATE_FOLDER |
	       CAPABILITY_RENAME_FOLDER |
	       CAPABILITY_ADD_MESSAGE |
	       CAPABILITY_COPY_MESSAGE |
	       CAPABILITY_DELETE_MESSAGE |
	       CAPABILITY_PARTIAL_FETCH |
	       CAPABILITY_MESSAGE_FLAGS |
	       CAPABILITY_EXTRACT_PART;
}



// Service infos

maildirServiceInfos maildirStore::sm_infos;


const serviceInfos& maildirStore::getInfosInstance() {

	return sm_infos;
}


const serviceInfos& maildirStore::getInfos() const {

	return sm_infos;
}


} // maildir
} // net
} // vmime


#endif // VMIME_HAVE_MESSAGING_FEATURES && VMIME_HAVE_MESSAGING_PROTO_MAILDIR