#include <sys/event.h>
#include <cstdio>
#include <fcntl.h>
#include <stdlib.h>
#include <limits.h>
// #include <vector>
// #include <map>
#include <sys/param.h>
// #include <sys/epoll.h>
#include <sys/event.h>
//
//

  typedef struct task_list_s {
    siginfo_t admin;
    pthread_t thread;
    pthread_mutex_t queue_cond_lock;
    // std::vector<MessageDef *> message_queue;
    // std::map<long,timer_elm_t> timer_map;
    uint64_t next_timer=UINT_MAX;

    /** Replace these shits **/
    struct epoll_event *events =NULL;
    int nb_fd_epoll=0;
    int epoll_fd=-1;

    /** kqueque equivalent **/


    int nb_events=0;
    int sem_fd=-1;
  } task_list_t;

int main(int argc, char **argv){

    struct kevent event1;
    struct kevent event2;
    struct kevent tevent;
    struct kevent tevent2;

    struct epoll_event *events =NULL;
    
    
    static task_list_t **tasks=NULL;
    // printf("%s\n", task_list_t);
    
    // General Pointers
    int kq, fd, ret1, ret2;

    // File Pointers
    int fd1, fd2;

    kq = kqueue();
    
    printf("%d number of args\n", argc);

    for (int i=1; i <= 2; i++){
    
        printf("==> %s\n", argv[i]);
        if (i == 1) 
            fd1 = open(argv[1], O_RDONLY);
        if (i == 2) 
            fd2 = open(argv[2], O_RDONLY);
    }

    // fd = open(argv[1], O_RDONLY);

    // for (int i=1; i <= 2; i++){
    //     printf("YOUR FILES \n");
    //     printf("==> %s\n", argv[i]);
    // }


    if (kq == -1){
        printf("Error kq...\n");
        return 0;
    }

    /* initialzing kevent struct  */
    EV_SET(
            &event1,
            fd1,
            EVFILT_VNODE,
            EV_ADD
            | 
            EV_CLEAR, 
            NOTE_WRITE, 
            0,
            NULL
            );

    ret1 = kevent(kq, &event1, 1, NULL, 0, NULL);

    EV_SET(
            &event2,
            fd2,
            EVFILT_VNODE,
            EV_ADD
            | 
            EV_CLEAR, 
            NOTE_WRITE, 
            0,
            NULL
            );

    ret2 = kevent(kq, &event2, 1, NULL, 0, NULL);

    if ( ret1 == -1 || ret2 == -1 ){
        printf("event failure to attched");
    }

    for (;;) {
        ret1 = kevent(kq, NULL, 0, &tevent, 1, NULL);
        ret2 = kevent(kq, NULL, 0, &tevent, 1, NULL);
        if (ret1 == -1 || ret2 == -1) {
            printf("Waiting.......\n");
        } else if ( ret1 > 0 || ret2 > 0 ){
                printf("Change detected on file...\n");
                printf("--> RET 1 VAL = %d\n", ret1);
                printf("--> RET 2 VAL = %d\n", ret2);
        }
        // printf("--> RET 1 VAL = %d\n", ret1);
        // printf("--> RET 2 VAL = %d\n", ret2);
    }
}