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/*
 * Copyright (c) 2013-2016 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#include <Sluift/ElementConvertors/PubSubOptionsConvertor.h>

#include <boost/smart_ptr/make_shared.hpp>

#include <lua.hpp>

#include <Sluift/LuaElementConvertors.h>

using namespace Swift;

PubSubOptionsConvertor::PubSubOptionsConvertor(LuaElementConvertors* convertors) : 
		GenericLuaElementConvertor<PubSubOptions>("pubsub_options"),
		convertors(convertors) {
}

PubSubOptionsConvertor::~PubSubOptionsConvertor() {
}

boost::shared_ptr<PubSubOptions> PubSubOptionsConvertor::doConvertFromLua(lua_State* L) {
	boost::shared_ptr<PubSubOptions> result = boost::make_shared<PubSubOptions>();
	lua_getfield(L, -1, "node");
	if (lua_isstring(L, -1)) {
		result->setNode(std::string(lua_tostring(L, -1)));
	}
	lua_pop(L, 1);
	lua_getfield(L, -1, "jid");
	if (lua_isstring(L, -1)) {
		result->setJID(JID(std::string(lua_tostring(L, -1))));
	}
	lua_pop(L, 1);
	lua_getfield(L, -1, "data");
	if (!lua_isnil(L, -1)) {
		if (boost::shared_ptr<Form> payload = boost::dynamic_pointer_cast<Form>(convertors->convertFromLuaUntyped(L, -1, "form"))) {
			result->setData(payload);
		}
	}
	lua_pop(L, 1);
	lua_getfield(L, -1, "subscription_id");
	if (lua_isstring(L, -1)) {
		result->setSubscriptionID(std::string(lua_tostring(L, -1)));
	}
	lua_pop(L, 1);
	return result;
}

void PubSubOptionsConvertor::doConvertToLua(lua_State* L, boost::shared_ptr<PubSubOptions> payload) {
	lua_createtable(L, 0, 0);
	lua_pushstring(L, payload->getNode().c_str());
	lua_setfield(L, -2, "node");
	lua_pushstring(L, payload->getJID().toString().c_str());
	lua_setfield(L, -2, "jid");
	if (convertors->convertToLuaUntyped(L, payload->getData()) > 0) {
		lua_setfield(L, -2, "data");
	}
	if (payload->getSubscriptionID()) {
		lua_pushstring(L, (*payload->getSubscriptionID()).c_str());
		lua_setfield(L, -2, "subscription_id");
	}
}

boost::optional<LuaElementConvertor::Documentation> PubSubOptionsConvertor::getDocumentation() const {
	return Documentation(
		"PubSubOptions",
		"This table has the following fields:\n\n"
		"- `node`: string\n"
		"- `jid`: jid (string)\n"
		"- `data`: @{Form}\n"
		"- `subscription_id`: string (Optional)\n"
	);
}