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#include "StarLuaComponents.hpp"
#include "StarUtilityLuaBindings.hpp"
#include "StarRootLuaBindings.hpp"
#include "StarScriptableThread.hpp"
#include "StarRpcThreadPromise.hpp"
#include "StarLuaGameConverters.hpp"
namespace Star {
LuaBaseComponent::LuaBaseComponent() {
addCallbacks("sb", LuaBindings::makeUtilityCallbacks());
addCallbacks("root", LuaBindings::makeRootCallbacks());
addCallbacks("threads", makeThreadsCallbacks());
setAutoReInit(true);
}
LuaBaseComponent::~LuaBaseComponent() {
m_threads.clear();
}
StringList const& LuaBaseComponent::scripts() const {
return m_scripts;
}
void LuaBaseComponent::setScript(String script) {
setScripts({std::move(script)});
}
void LuaBaseComponent::setScripts(StringList scripts) {
if (initialized())
throw LuaComponentException("Cannot call LuaWorldComponent::setScripts when LuaWorldComponent is initialized");
m_scripts = std::move(scripts);
}
void LuaBaseComponent::addCallbacks(String groupName, LuaCallbacks callbacks) {
if (!m_callbacks.insert(groupName, callbacks).second)
throw LuaComponentException::format("Duplicate callbacks named '{}' in LuaBaseComponent", groupName);
if (m_context)
m_context->setCallbacks(groupName, callbacks);
}
bool LuaBaseComponent::removeCallbacks(String const& groupName) {
if (m_callbacks.remove(groupName)) {
if (m_context)
m_context->remove(groupName);
return true;
}
return false;
}
bool LuaBaseComponent::autoReInit() const {
return (bool)m_reloadTracker;
}
void LuaBaseComponent::setAutoReInit(bool autoReInit) {
if (autoReInit) {
m_reloadTracker = make_shared<TrackerListener>();
Root::singleton().registerReloadListener(m_reloadTracker);
} else {
m_reloadTracker.reset();
}
}
void LuaBaseComponent::setLuaRoot(LuaRootPtr luaRoot) {
m_luaRoot = std::move(luaRoot);
}
LuaRootPtr const& LuaBaseComponent::luaRoot() {
return m_luaRoot;
}
bool LuaBaseComponent::init() {
uninit();
if (!m_luaRoot)
return false;
m_error.reset();
try {
m_context = m_luaRoot->createContext(m_scripts);
} catch (LuaException const& e) {
Logger::error("Exception while creating lua context for scripts '{}': {}", m_scripts, outputException(e, true));
m_error = String(printException(e, false));
m_context.reset();
return false;
}
contextSetup();
if (m_context->containsPath("init")) {
try {
m_context->invokePath("init");
} catch (LuaException const& e) {
Logger::error("Exception while calling script init: {}", outputException(e, true));
m_error = String(printException(e, false));
m_context.reset();
return false;
}
}
return true;
}
void LuaBaseComponent::uninit() {
if (m_context) {
if (m_context->containsPath("uninit")) {
try {
m_context->invokePath("uninit");
} catch (LuaException const& e) {
Logger::error("Exception while calling script uninit: {}", outputException(e, true));
m_error = String(printException(e, false));
}
}
contextShutdown();
m_context.reset();
}
for (auto p : m_threads) {
p.second->stop();
}
m_error.reset();
}
bool LuaBaseComponent::initialized() const {
return m_context.isValid();
}
Maybe<String> const& LuaBaseComponent::error() const {
return m_error;
}
Maybe<LuaContext> const& LuaBaseComponent::context() const {
return m_context;
}
Maybe<LuaContext>& LuaBaseComponent::context() {
return m_context;
}
void LuaBaseComponent::contextSetup() {
m_context->setPath("self", m_context->createTable());
for (auto const& p : m_callbacks)
m_context->setCallbacks(p.first, p.second);
}
void LuaBaseComponent::contextShutdown() {}
void LuaBaseComponent::setError(String error) {
m_context.reset();
m_error = std::move(error);
}
bool LuaBaseComponent::checkInitialization() {
// We should re-initialize if we are either already initialized or in an
// error state (which means we WERE initialized until we had an error)
bool shouldBeInitialized = initialized() || error();
if (shouldBeInitialized && m_reloadTracker && m_reloadTracker->pullTriggered())
init();
return initialized();
}
LuaCallbacks LuaBaseComponent::makeThreadsCallbacks() {
LuaCallbacks callbacks;
callbacks.registerCallback("create", [this](Json parameters) {
auto name = parameters.getString("name");
if (m_threads.contains(name)) {
m_threads.get(name)->stop();
m_threads.remove(name);
}
auto thread = make_shared<ScriptableThread>(parameters);
thread->setPause(false);
thread->start();
m_threads.set(name,thread);
return name;
});
callbacks.registerCallback("setPause", [this](String const& threadName, bool paused) {
m_threads.get(threadName)->setPause(paused);
});
callbacks.registerCallback("stop", [this](String const& threadName) {
m_threads.get(threadName)->stop();
m_threads.remove(threadName);
});
callbacks.registerCallback("sendMessage", [this](String const& threadName, String const& message, LuaVariadic<Json> args) {
auto pair = RpcThreadPromise<Json>::createPair();
RecursiveMutexLocker locker(m_threadLock);
m_threads.get(threadName)->passMessage({ message, args, pair.second });
return pair.first;
});
return callbacks;
}
}
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