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Java API for OpenWeatherMap services.
There is a newer version: 2.4.0
/*
 * Copyright (c) 2021 Alexey Zinchenko
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.github.prominence.openweathermap.api.model.weather;

import java.util.Objects;

/**
 * Represents snow information.
 */
public class Snow {
    private static final String DEFAULT_UNIT = "mm";

    private Double oneHourLevel;
    private Double threeHourLevel;

    private Snow() {
    }

    /**
     * Creates {@link Snow} object with correctness check.
     *
     * @param oneHourLevel 1-hour snow level value
     * @return snow object.
     */
    public static Snow withOneHourLevelValue(double oneHourLevel) {
        final Snow snow = new Snow();
        snow.setOneHourLevel(oneHourLevel);
        return snow;
    }

    /**
     * Creates {@link Snow} object with correctness check.
     *
     * @param threeHourLevel 3-hour snow level value
     * @return snow object.
     */
    public static Snow withThreeHourLevelValue(double threeHourLevel) {
        final Snow snow = new Snow();
        snow.setThreeHourLevel(threeHourLevel);
        return snow;
    }

    /**
     * Creates {@link Snow} object with correctness check.
     *
     * @param oneHourLevel   the one hour snow level
     * @param threeHourLevel the three hour snow level
     * @return the snow
     */
    public static Snow withValues(double oneHourLevel, double threeHourLevel) {
        final Snow snow = new Snow();
        snow.setOneHourLevel(oneHourLevel);
        snow.setThreeHourLevel(threeHourLevel);
        return snow;
    }

    /**
     * Gets one hour snow level.
     *
     * @return the one hour snow level
     */
    public Double getOneHourLevel() {
        return oneHourLevel;
    }

    /**
     * Sets one hour snow level.
     *
     * @param oneHourLevel the one hour snow level
     */
    public void setOneHourLevel(double oneHourLevel) {
        if (oneHourLevel < 0) {
            throw new IllegalArgumentException("Snow level value cannot be negative.");
        }
        this.oneHourLevel = oneHourLevel;
    }

    /**
     * Gets three hour snow level.
     *
     * @return the three hour snow level
     */
    public Double getThreeHourLevel() {
        return threeHourLevel;
    }

    /**
     * Sets three hour snow level.
     *
     * @param threeHourLevel the three hour snow level
     */
    public void setThreeHourLevel(double threeHourLevel) {
        if (threeHourLevel < 0) {
            throw new IllegalArgumentException("Snow level value cannot be negative.");
        }
        this.threeHourLevel = threeHourLevel;
    }

    /**
     * Gets unit.
     *
     * @return the unit
     */
    public String getUnit() {
        return DEFAULT_UNIT;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (!(o instanceof Snow)) return false;
        Snow snow = (Snow) o;
        return Objects.equals(oneHourLevel, snow.oneHourLevel) &&
                Objects.equals(threeHourLevel, snow.threeHourLevel);
    }

    @Override
    public int hashCode() {
        return Objects.hash(oneHourLevel, threeHourLevel);
    }

    @Override
    public String toString() {
        final StringBuilder snowString = new StringBuilder();
        if (oneHourLevel != null) {
            snowString.append("1-hour snow level: ");
            snowString.append(oneHourLevel);
            snowString.append(getUnit());
        }
        if (threeHourLevel != null) {
            if (oneHourLevel != null) {
                snowString.append(", ");
            }
            snowString.append("3-hours snow level: ");
            snowString.append(threeHourLevel);
            snowString.append(getUnit());
        }
        return snowString.toString();
    }
}