#include <errno.h>
#include <stdio.h>

#include <time.h>
#include <sys/mman.h>

#include "nese.h"
#include "port.h"

#define DEBUG "Port"
#include "log.h"


void* nese_map_file(FILE* file, int size) {
    void* addr = mmap(NULL, size, PROT_READ, MAP_SHARED,
                      fileno(file), 0);
    if (MAP_FAILED == addr || NULL == addr) {
        fprintf(stderr, "mmap failed: %d\n", (int)errno);
        addr = NULL;
    }
    return addr;
}

int nese_unmap_file(void* addr, int size) {
    return munmap(addr, size);
}

int nese_frame_ready() {
/*
    static int frame = 0;
    static int ignore = 1;
    static struct timespec t_last = {0};
    struct timespec t_now = {0};

    ++frame;
    clock_gettime(CLOCK_MONOTONIC, &t_now);

    if (t_now.tv_sec > t_last.tv_sec) {
        if (!ignore) printf("%d\n", frame);
        frame = 0;
        ignore = 0;
    }

    t_last = t_now;
*/

    // TODO: Render frame
    // TODO: Time sync
    // TODO: Handle quit signal
    // TODO: Perform menu actions
    return 0;
}

int nese_update_input(nes_Input* input) {
    // TODO: Populate the gamepad states
    return 0;
}


static nes sys = {0};


int main(int argc, char* argv[]) {
    int status = 0;
    if (argc <= 1) {
        LOGE("No ROM file provided.");
        status = -1;
    } else {
        status = nese_start(&sys, argv[1]);
    }
    return status;
}