#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <time.h>

#include "main/include/colors.h"
#include "main/include/config.h"
#include "main/include/tasks.h"
#include "main/include/db.h"

#include "log/log.h"

task_t next_task(task_list_t* tasks) {
    time_t now = time(0);

    task_t next;
    next.due_to = 0;

    task_list_t* cur = tasks;

    while (cur) {
        task_t t = cur->task;

        if (!t.done && (difftime(now, t.due_to) <= 0 || t.due_to == 0)) { // La tâche a une échéance, qui n'est pas passée
            if (next.due_to == 0 || difftime(next.due_to, t.due_to) >= 0) {
                next = t;
            }
        }

        cur = cur->next;
    }

    return next;
}



int main() {
    log_info("TaKl " VERSION " -- Daemon started");
    
    task_list_t* tasks = get_task_list(false);

    while (1) {
        task_t next = next_task(tasks);

        if (next.due_to == 0) {
            log_fatal("Plus de tâches avec échéance dans la liste");
            free_task_list(tasks);
            return 1;
        }

        time_t now = time(0);
        double wait = difftime(next.due_to, now) + 5;
        log_debug("Attente de %0.1lfs", wait);
        sleep(wait);

        log_debug("Envoi de la notification tâche [%d]", next.id);
        desktop_notification(next);
        //! si deux tâches sont à la même date à moins de 0.1s près,
        //! l'une des deux seulement sera affichée
    }

    free_task_list(tasks);
    return 0;
}