#include "XNServiceManager.h"
#include "XNServiceManager_p.h"
#include "XNServiceObject.h"

XNServiceManager::XNServiceManager() : XNBaseFrameObject(new XNServiceManagerPrivate())
{
	SetUniqueId(4);
	SetObjectName("XNServiceManager");
	T_D();
	d->ServiceIDAssigned.resize(10000, false);
}

XNServiceManager::~XNServiceManager()
{
}

XNServiceManager::XNServiceManager(PrivateType *p) : XNBaseFrameObject(p)
{
}

bool XNServiceManager::Initialize()
{
	T_D();
	LOG_INFO("XNServiceManager Initialize Success!");
	d->_status = XNFrameObjectStatus::Initialized;
	return true;
}

bool XNServiceManager::PrepareForExecute()
{
	T_D();
	for (auto &service : d->ServiceList) {
		service.second->PrepareForExecute();
	}
	d->_status = XNFrameObjectStatus::Ready;
	LOG_INFO("XNServiceManager is prepared!");
	return true;
}

void XNServiceManager::LoadService(const std::string &servicePath, const std::string &serviceName,
								   const std::string &serviceVersion, uint32_t initialType)
{
	T_D();
	void *handle = dlopen(servicePath.c_str(), RTLD_LAZY);
	if (handle) {
		typedef XNServiceObjectPtr (*InitialServiceFunc)();
		std::string initialServiceName = "Initial" + serviceName;
		InitialServiceFunc initialService =
			(InitialServiceFunc)dlsym(handle, initialServiceName.c_str());
		if (initialService) {
			XNServiceObjectPtr service = initialService();
			if (service) {
				uint32_t serviceID = RegisterService();
				if (serviceID == 0) {
					LOG_WARNING("0x2174 Assign Service ID Failed, Service ID is used up!");
					dlclose(handle);
					return;
				}
				service->SetUniqueId(serviceID);
				service->SetObjectName(serviceName);
				service->SetFramework(GetFramework());
				if (initialType == 0) {
					// 使用std::filesystem处理路径
					std::filesystem::path configPath =
						std::filesystem::path(servicePath).parent_path()
						/ (serviceName + "_V" + serviceVersion + ".scfg");
					service->SetXmlPath(configPath.string());
				} else if (initialType == 1) {
					LOG_INFO("0x2176 加载服务: %1", serviceName + "," + serviceVersion);
					service->SetXmlPath(serviceName + "," + serviceVersion);
				} else {
					LOG_WARNING("0x2175 InitialType Error, InitialType: %d", initialType);
					dlclose(handle);
					return;
				}

				// 注册服务到管理器
				d->ServiceList[serviceID] = service;
				service->SetInitializeType(initialType);
				// 初始化服务
				LOG_INFO("0x2176 初始化服务: %1", serviceName);
				service->Initialize();
			} else {
				LOG_WARNING("0x2173 Service %s Not found in dynamic link library %s!",
							serviceName.c_str(), servicePath.c_str());
				dlclose(handle);
				return;
			}
		} else {
			LOG_WARNING(
				"0x2177 Service %s Initialization Failed, Function InitialService Not Found!",
				serviceName.c_str());
			dlclose(handle);
			return;
		}
	} else {
		LOG_WARNING("0x2172 Service %s Dynamic link library loading failed! Error: %s",
					serviceName.c_str(), dlerror());
	}
}

XNServiceObjectPtr XNServiceManager::GetService(uint32_t serviceID)
{
	T_D();
	if (d->ServiceIDAssigned[serviceID - 20000]
		&& d->ServiceList.find(serviceID) != d->ServiceList.end()) {
		return d->ServiceList[serviceID];
	} else {
		return nullptr;
	}
}

uint32_t XNServiceManager::RegisterService()
{
	T_D();
	// 从20000～29999的编号中分配ID
	for (int i = 0; i < 10000; i++) {
		if (d->ServiceIDAssigned[i])
			continue;
		else {
			d->ServiceIDAssigned[i] = true;
			return i + 20000;
		}
	}
	return 0;
}