#include <hex/api/content_registry.hpp>
#include <hex/api/localization_manager.hpp>
#include <hex/api/event_manager.hpp>
#include <hex/api/project_file_manager.hpp>

#include <wolv/utils/guards.hpp>
#include <wolv/net/socket_server.hpp>

#include <hex/helpers/fmt.hpp>
#include <fmt/chrono.h>
#include <hex/helpers/logger.hpp>

#include <nlohmann/json.hpp>

namespace hex::plugin::builtin {

    static bool networkInterfaceServiceEnabled = false;
    static int autoBackupTime = 0;

    namespace {

        void handleNetworkInterfaceService() {
            if (!networkInterfaceServiceEnabled) {
                std::this_thread::sleep_for(std::chrono::milliseconds(100));
                return;
            }

            static wolv::net::SocketServer networkInterfaceServer(31337);

            AT_FIRST_TIME {
                EventImHexClosing::subscribe([]{
                    networkInterfaceServer.shutdown();
                });
            };

            networkInterfaceServer.accept([](auto, const std::vector<u8> &data) -> std::vector<u8> {
                nlohmann::json result;

                try {
                   auto json = nlohmann::json::parse(data.begin(), data.end());

                   const auto &endpoints = ContentRegistry::CommunicationInterface::impl::getNetworkEndpoints();
                   if (auto callback = endpoints.find(json.at("endpoint").get<std::string>()); callback != endpoints.end()) {
                       log::info("Network endpoint {} called with arguments '{}'", json.at("endpoint").get<std::string>(), json.contains("data") ? json.at("data").dump() : "");

                       auto responseData = callback->second(json.contains("data") ? json.at("data") : nlohmann::json::object());

                       result["status"] = "success";
                       result["data"] = responseData;
                   } else {
                       throw std::runtime_error("Endpoint not found");
                   }
                } catch (const std::exception &e) {
                    log::warn("Network interface service error: {}", e.what());

                    result["status"] = "error";
                    result["data"]["error"] = e.what();
                }

                auto resultString = result.dump();
                return { resultString.begin(), resultString.end() };
            });
        }

        void handleAutoBackup() {
            auto now = std::chrono::steady_clock::now();
            static std::chrono::time_point<std::chrono::steady_clock> lastBackupTime = now;

            if (autoBackupTime > 0 && (now - lastBackupTime) > std::chrono::seconds(autoBackupTime)) {
                lastBackupTime = now;

                if (ImHexApi::Provider::isValid() && ImHexApi::Provider::isDirty()) {
                    for (const auto &path : fs::getDefaultPaths(fs::ImHexPath::Backups)) {
                        const auto fileName = hex::format("auto_backup.{:%y%m%d_%H%M%S}.hexproj", fmt::gmtime(std::chrono::system_clock::now()));
                        if (ProjectFile::store(path / fileName, false))
                            break;
                    }

                    log::info("Backed up project");
                }
            }

            std::this_thread::sleep_for(std::chrono::seconds(1));
        }

    }

    void registerBackgroundServices() {
        ContentRegistry::Settings::onChange("hex.builtin.setting.general", "hex.builtin.setting.general.network_interface", [](const ContentRegistry::Settings::SettingsValue &value) {
            networkInterfaceServiceEnabled = value.get<bool>(false);
        });

        ContentRegistry::Settings::onChange("hex.builtin.setting.general", "hex.builtin.setting.general.auto_backup_time", [](const ContentRegistry::Settings::SettingsValue &value) {
            autoBackupTime = value.get<int>(0) * 30;
        });

        ContentRegistry::BackgroundServices::registerService("hex.builtin.background_service.network_interface", handleNetworkInterfaceService);
        ContentRegistry::BackgroundServices::registerService("hex.builtin.background_service.auto_backup", handleAutoBackup);
    }

}