#include "LuaComponent.h"

LuaComponent::LuaComponent() {
	this->m_Env = nullptr;
	this->m_FileName = "";
}

LuaComponent::LuaComponent(const std::string& fileName, sol::state* state) {
	this->m_FileName = fileName;
	this->state = state;
}
LuaComponent::~LuaComponent() {
	if (m_Env) {
		sol::protected_function releaseFunc = m_Env["OnRelease"];
		if (releaseFunc.valid()) {
			releaseFunc.call();
		}
		m_Env.clear();
		m_Env = sol::lua_nil;
	}
}

void LuaComponent::Init() {
	LoadScript(m_FileName);
	OnInit();
}

void LuaComponent::OnInit() {
	if (m_Env) {
		sol::protected_function initFunc = m_Env["OnInit"];
		if (initFunc.valid()) {
			initFunc.call();
		}
	}
}

void LuaComponent::LoadScript(const std::string& fileName) {
	m_FileName = fileName;
	//m_Env = std::make_unique<sol::environment>(sol::environment(*state, sol::create, state->globals())).get();
	m_Env = sol::environment(*state, sol::create, state->globals());
	sol::load_result error = state->load_file(fileName);
	
	if (error.status() == sol::load_status::ok) {
		try {
			auto func_result = state->safe_script_file(fileName, m_Env);
			if (!func_result.valid()) {
				sol::error err = error;
				std::cout << "[LUA] lua_dofile failed with error: " << err.what() << std::endl;				
				sol::protected_function printFunc = (*(state))["PrintGameConsole"];
				if (printFunc.valid()) {
					std::string errorMessage = std::string("[LUA] failed with error: ").append(err.what());
					printFunc(errorMessage);
				}				
			}
		}
		catch (...) {

		}
	}
	state->collect_garbage();
}