/*
 * This file is a part of the SteamWar software.
 *
 * Copyright (C) 2020  SteamWar.de-Serverteam
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package de.steamwar.sql;

import java.util.Calendar;

public class Season {
    private Season() {}

    public static int getSeason() {
        Calendar calendar = Calendar.getInstance();
        int yearIndex = calendar.get(Calendar.MONTH) / 4;
        return (calendar.get(Calendar.YEAR) * 3 + yearIndex);
    }

    public static String getSeasonStart() {
        Calendar calendar = Calendar.getInstance();
        return calendar.get(Calendar.YEAR) + "-" + (calendar.get(Calendar.MONTH) / 4 * 3 + 1) + "-1";
    }

    public static String convertSeasonToString(int season){
        if (season == -1) return "";
        int yearSeason = season % 3;
        int year = (season - yearSeason) / 3;
        return String.format("%d-%d", year, yearSeason);
    }

    public static int convertSeasonToNumber(String season){
        if (season.isEmpty()) return -1;
        String[] split = season.split("-");
        try {
            return Integer.parseInt(split[0]) * 3 + Integer.parseInt(split[1]);
        } catch (NumberFormatException e) {
            return -1;
        }
    }
}