/*                 _,.---._    .-._        .--.-. ,--.--------.
 *   _,..---._   ,-.' , -  `. /==/ \  .-._/==/  //==/,  -   , -\
 * /==/,   -  \ /==/_,  ,  - \|==|, \/ /, |==\ -\\==\.-.  - ,-./
 * |==|   _   _\==|   .=.     |==|-  \|  | \==\- \`--`\==\- \
 * |==|  .=.   |==|_ : ;=:  - |==| ,  | -|  `--`-'     \==\_ \
 * |==|,|   | -|==| , '='     |==| -   _ |             |==|- |
 * |==|  '='   /\==\ -    ,_ /|==|  /\ , |             |==|, |
 * |==|-,   _`/  '.='. -   .' /==/, | |- |             /==/ -/
 * `-.`.____.'     `--`--''   `--`./  `--`             `--`--`
 *                    _ __    ,---.      .-._         .=-.-.  _,.----.
 *                 .-`.' ,`..--.'  \    /==/ \  .-._ /==/_ /.' .' -   \
 *                /==/, -   \==\-/\ \   |==|, \/ /, /==|, |/==/  ,  ,-'
 *               |==| _ .=. /==/-|_\ |  |==|-  \|  ||==|  ||==|-   |  .
 *               |==| , '=',\==\,   - \ |==| ,  | -||==|- ||==|_   `-' \
 *               |==|-  '..'/==/ -   ,| |==| -   _ ||==| ,||==|   _  , |
 *               |==|,  |  /==/-  /\ - \|==|  /\ , ||==|- |\==\.       /
 *               /==/ - |  \==\ _.\=\.-'/==/, | |- |/==/. / `-.`.___.-'
 *               `--`---'   `--`        `--`./  `--``--`-`
 *
 *	@(#)Copyright (c) 2024, Nathan D. Fisher.
 *
 *      This is free software.  It comes with NO WARRANTY.
 *      Permission to use, modify and distribute this source code
 *      is granted subject to the following conditions.
 *      1/ that the above copyright notice and this notice
 *      are preserved in all copies and that due credit be given
 *      to the author.
 *      2/ that any changes to this code are clearly commented
 *      as such so that the author does not get blamed for bugs
 *      other than his own.
 */

#include <stdint.h>
#include "epoch.h"

void yearNew(Year *year, int32_t inner) {
    year->year = inner;
    if (inner % 4 == 0 && (inner % 100 != 0 || inner % 400 == 0))
        year->tag = leapYear;
    else
        year->tag = normalYear;
}

uint16_t yearGetDays(Year *year) {
    switch (year->tag) {
        case normalYear:
            return 365;
        case leapYear:
            return 366;
        default:
            return 365;
    }
}

int64_t yearGetSeconds(Year *year) {
    return (int64_t)yearGetDays(year) * SECONDS_PER_DAY;
}

int32_t yearGetInner(Year *year) {
    return year->year;
}

void yearIncrement(Year *year) {
    year->year += 1;
    if (year->year % 4 == 0 && (year->year % 100 != 0 || year->year % 400 == 0))
        year->tag = leapYear;
    else
        year->tag = normalYear;
}

void yearDecrement(Year *year) {
    year->year -= 1;
    if (year->year % 4 == 0 && (year->year % 100 != 0 || year->year % 400 == 0))
        year->tag = leapYear;
    else
        year->tag = normalYear;
}