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/*
 * Copyright (c) 2010-2016 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#include <Sluift/ElementConvertors/SecurityLabelConvertor.h>

#include <boost/numeric/conversion/cast.hpp>
#include <boost/smart_ptr/make_shared.hpp>

#include <lua.hpp>

#include <Swiften/Base/foreach.h>

using namespace Swift;

SecurityLabelConvertor::SecurityLabelConvertor() :
		GenericLuaElementConvertor<SecurityLabel>("security_label") {
}

SecurityLabelConvertor::~SecurityLabelConvertor() {
}

boost::shared_ptr<SecurityLabel> SecurityLabelConvertor::doConvertFromLua(lua_State* L) {
	boost::shared_ptr<SecurityLabel> result = boost::make_shared<SecurityLabel>();
	lua_getfield(L, -1, "equivalent_labels");
	if (lua_type(L, -1) == LUA_TTABLE) {
		std::vector< std::string > items;
		for(size_t i = 0; i < lua_objlen(L, -1); ++i) {
			lua_pushnumber(L, i + 1);
			lua_gettable(L, -2);
			if (lua_isstring(L, -1)) {
				items.push_back(std::string(lua_tostring(L, -1)));
			}
			lua_pop(L, 1);
		}

		result->setEquivalentLabels(items);
	}
	lua_pop(L, 1);
	lua_getfield(L, -1, "foreground_color");
	if (lua_isstring(L, -1)) {
		result->setForegroundColor(std::string(lua_tostring(L, -1)));
	}
	lua_pop(L, 1);
	lua_getfield(L, -1, "display_marking");
	if (lua_isstring(L, -1)) {
		result->setDisplayMarking(std::string(lua_tostring(L, -1)));
	}
	lua_pop(L, 1);
	lua_getfield(L, -1, "background_color");
	if (lua_isstring(L, -1)) {
		result->setBackgroundColor(std::string(lua_tostring(L, -1)));
	}
	lua_pop(L, 1);
	lua_getfield(L, -1, "label");
	if (lua_isstring(L, -1)) {
		result->setLabel(std::string(lua_tostring(L, -1)));
	}
	lua_pop(L, 1);
	return result;
}

void SecurityLabelConvertor::doConvertToLua(lua_State* L, boost::shared_ptr<SecurityLabel> payload) {
	lua_createtable(L, 0, 0);
	if (!payload->getEquivalentLabels().empty()) {
		lua_createtable(L, boost::numeric_cast<int>(payload->getEquivalentLabels().size()), 0);
		{
			int i = 0;
			foreach(const std::string& item, payload->getEquivalentLabels()) {
				lua_pushstring(L, item.c_str());
				lua_rawseti(L, -2, boost::numeric_cast<int>(i+1));
				++i;
			}
		}
		lua_setfield(L, -2, "equivalent_labels");
	}
	lua_pushstring(L, payload->getForegroundColor().c_str());
	lua_setfield(L, -2, "foreground_color");
	lua_pushstring(L, payload->getDisplayMarking().c_str());
	lua_setfield(L, -2, "display_marking");
	lua_pushstring(L, payload->getBackgroundColor().c_str());
	lua_setfield(L, -2, "background_color");
	lua_pushstring(L, payload->getLabel().c_str());
	lua_setfield(L, -2, "label");
}

boost::optional<LuaElementConvertor::Documentation> SecurityLabelConvertor::getDocumentation() const {
	return Documentation(
		"SecurityLabel",
		"This table has the following fields:\n\n"
		"- `equivalent_labels`: array<string>\n"
		"- `foreground_color`: string\n"
		"- `display_marking`: string\n"
		"- `background_color`: string\n"
		"- `label`: string\n"
	);
}