net.dv8tion.jda.api.events.guild.update.GuildUpdateIconEvent Maven / Gradle / Ivy

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/*
 * Copyright 2015 Austin Keener, Michael Ritter, Florian Spieß, and the JDA contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package net.dv8tion.jda.api.events.guild.update;

import net.dv8tion.jda.api.JDA;
import net.dv8tion.jda.api.entities.Guild;
import net.dv8tion.jda.api.utils.ImageProxy;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;

/**
 * Indicates that the Icon of a {@link net.dv8tion.jda.api.entities.Guild Guild} changed.
 *
 * Can be used to detect when a guild icon changes and retrieve the old one
 *
 * 
Identifier: {@code icon}
 */
public class GuildUpdateIconEvent extends GenericGuildUpdateEvent
{
    public static final String IDENTIFIER = "icon";

    public GuildUpdateIconEvent(@Nonnull JDA api, long responseNumber, @Nonnull Guild guild, @Nullable String oldIconId)
    {
        super(api, responseNumber, guild, oldIconId, guild.getIconId(), IDENTIFIER);
    }

    /**
     * The old icon id
     *
     * @return The old icon id, or null
     */
    @Nullable
    public String getOldIconId()
    {
        return getOldValue();
    }

    /**
     * The url of the old icon
     *
     * @return The url of the old icon, or null
     */
    @Nullable
    public String getOldIconUrl()
    {
        return previous == null ? null : String.format(Guild.ICON_URL, guild.getId(), previous, previous.startsWith("a_") ? "gif" : "png");
    }

    /**
     * Returns an {@link ImageProxy} for this guild's old icon.
     * 
     * Note: the old icon may not always be downloadable as it might have been removed from Discord.
     *
     * @return Possibly-null {@link ImageProxy} of this guild's old icon
     *
     * @see    #getOldIconUrl()
     */
    @Nullable
    public ImageProxy getOldIcon()
    {
        final String oldIconUrl = getOldIconUrl();
        return oldIconUrl == null ? null : new ImageProxy(oldIconUrl);
    }

    /**
     * The old icon id
     *
     * @return The old icon id, or null
     */
    @Nullable
    public String getNewIconId()
    {
        return getNewValue();
    }

    /**
     * The url of the new icon
     *
     * @return The url of the new icon, or null
     */
    @Nullable
    public String getNewIconUrl()
    {
        return next == null ? null : String.format(Guild.ICON_URL, guild.getId(), next, next.startsWith("a_") ? "gif" : "png");
    }

    /**
     * Returns an {@link ImageProxy} for this guild's new icon.
     *
     * @return Possibly-null {@link ImageProxy} of this guild's new icon
     *
     * @see    #getNewIconUrl()
     */
    @Nullable
    public ImageProxy getNewIcon()
    {
        final String newIconUrl = getNewIconUrl();
        return newIconUrl == null ? null : new ImageProxy(newIconUrl);
    }
}