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/*
 * Copyright (c) 2013 Remko Tronçon
 * Licensed under the GNU General Public License.
 * See the COPYING file for more information.
 */

#include <Sluift/ElementConvertors/PubSubEventSubscriptionConvertor.h>

#include <lua.hpp>
#include <boost/smart_ptr/make_shared.hpp>


#include <Swiften/Base/DateTime.h>

#pragma clang diagnostic ignored "-Wunused-private-field"

using namespace Swift;

PubSubEventSubscriptionConvertor::PubSubEventSubscriptionConvertor(LuaElementConvertors* convertors) : 
		GenericLuaElementConvertor<PubSubEventSubscription>("pubsub_event_subscription"),
		convertors(convertors) {
}

PubSubEventSubscriptionConvertor::~PubSubEventSubscriptionConvertor() {
}

boost::shared_ptr<PubSubEventSubscription> PubSubEventSubscriptionConvertor::doConvertFromLua(lua_State* L) {
	boost::shared_ptr<PubSubEventSubscription> result = boost::make_shared<PubSubEventSubscription>();
	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, "subscription");
	if (lua_isstring(L, -1)) {
		if (std::string(lua_tostring(L, -1)) == "none") {
			result->setSubscription(PubSubEventSubscription::None);
		}
		if (std::string(lua_tostring(L, -1)) == "pending") {
			result->setSubscription(PubSubEventSubscription::Pending);
		}
		if (std::string(lua_tostring(L, -1)) == "subscribed") {
			result->setSubscription(PubSubEventSubscription::Subscribed);
		}
		if (std::string(lua_tostring(L, -1)) == "unconfigured") {
			result->setSubscription(PubSubEventSubscription::Unconfigured);
		}
	}
	lua_pop(L, 1);
	lua_getfield(L, -1, "subscriptionid");
	if (lua_isstring(L, -1)) {
		result->setSubscriptionID(std::string(lua_tostring(L, -1)));
	}
	lua_pop(L, 1);
	lua_getfield(L, -1, "expiry");
	if (lua_isstring(L, -1)) {
		result->setExpiry(stringToDateTime(std::string(lua_tostring(L, -1))));
	}
	lua_pop(L, 1);
	return result;
}

void PubSubEventSubscriptionConvertor::doConvertToLua(lua_State* L, boost::shared_ptr<PubSubEventSubscription> 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");
	switch (payload->getSubscription()) {
		case PubSubEventSubscription::None:
			lua_pushstring(L, "none");
			break;
		case PubSubEventSubscription::Pending:
			lua_pushstring(L, "pending");
			break;
		case PubSubEventSubscription::Subscribed:
			lua_pushstring(L, "subscribed");
			break;
		case PubSubEventSubscription::Unconfigured:
			lua_pushstring(L, "unconfigured");
			break;
	}
	lua_setfield(L, -2, "subscription");
	if (payload->getSubscriptionID()) {
		lua_pushstring(L, (*payload->getSubscriptionID()).c_str());
		lua_setfield(L, -2, "subscriptionid");
	}
	lua_pushstring(L, dateTimeToString(payload->getExpiry()).c_str());
	lua_setfield(L, -2, "expiry");
}

boost::optional<LuaElementConvertor::Documentation> PubSubEventSubscriptionConvertor::getDocumentation() const {
	return Documentation(
		"PubSubEventSubscription",
		"This table has the following fields:\n\n"
		"- `node`: string\n"
		"- `jid`: jid (string)\n"
		"- `subscription`: `\"none\"`, `\"pending\"`, `\"subscribed\"`, or `\"unconfigured\"`\n"
		"- `subscriptionid`: string (Optional)\n"
		"- `expiry`: datetime (string)\n"
	);
}