#include "dateutils.h"

#include "pico/types.h"


datetime_compare_res compare_datetime(const datetime_t *dt1, const datetime_t *dt2) {
    // Compare year first
    if (dt1->year > dt2->year) return BIGGER_THAN;
    if (dt1->year < dt2->year) return SMALLER_THAN;

    // Years are equal, compare month
    if (dt1->month > dt2->month) return BIGGER_THAN;
    if (dt1->month < dt2->month) return SMALLER_THAN;

    // Months are equal, compare day
    if (dt1->day > dt2->day) return BIGGER_THAN;
    if (dt1->day < dt2->day) return SMALLER_THAN;

    // Days are equal, compare hour
    if (dt1->hour > dt2->hour) return BIGGER_THAN;
    if (dt1->hour < dt2->hour) return SMALLER_THAN;

    // Hours are equal, compare minute
    if (dt1->min > dt2->min) return BIGGER_THAN;
    if (dt1->min < dt2->min) return SMALLER_THAN;

    // Minutes are equal, compare second
    if (dt1->sec > dt2->sec) return BIGGER_THAN;
    if (dt1->sec < dt2->sec) return SMALLER_THAN;

    // All fields are equal
    return EQUALS;
}