// resource manager
//
// Date:    2024-02-25
//
// Resources in monitoring: memory
#pragma once

#include <base/utils.h>
#include <base/packet.h>

class resource_mgr
{
    volatile bool   run_ = true;
    volatile bool   monitor_ = false;
    uint64_t        mem_limit_ = SIZE_GB(2);
    uint64_t        mem_now_ = 0;
    std::unique_ptr<std::thread>    thread_;

    void thread_monitor(void);

public:
    resource_mgr();
    ~resource_mgr();

    static std::string task_type(_task task);
    
public:
    void start(void);
    void stop(void);
    void set_memory_limit(uint64_t max_size = SIZE_GB(2));
    bool is_resource_enable(_task task, bool wait = false, int to_ms = 0);
};

                // watch.reset();
                // bool first = true;
                // while(scanning_)
                // {
                //     if(res_(TASK_CAPTURER, true, 3))
                //     {
                //         if(!first)
                //         {
                //             uint64_t    now = 0;

                //             utils::get_memory_usage(nullptr, &now, nullptr);
                //             utils::to_log(LOG_LEVEL_DEBUG, "Resources OK: %lld\n", now);
                //        }
                //         break;
                //     }
                //     if(first)
                //     {
                //         uint64_t    now = 0;

                //         first = false;
                //         utils::get_memory_usage(nullptr, &now, nullptr);
                //         utils::to_log(LOG_LEVEL_WARNING, "Resources have reached their maximum limit: %lld\n", now);
                //     }
                //     if(watch.elapse_s() >= 3)
                //     {
                //         uint64_t    now = 0;

                //         utils::get_memory_usage(nullptr, &now, nullptr);
                //         utils::to_log(LOG_LEVEL_FATAL, "Resources is not enough(memory = %lld) for continue scanning, exit scanning now.\n", now);
                //         auto_scan_ = scanning_ = false;
                //         err = SCANNER_ERR_INSUFFICIENT_MEMORY;
                //         break;
                //     }
                //     std::this_thread::sleep_for(std::chrono::milliseconds(3));
                // }