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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.internal.handle;

import net.dv8tion.jda.api.entities.channel.concrete.ThreadChannel;
import net.dv8tion.jda.api.events.thread.ThreadRevealedEvent;
import net.dv8tion.jda.api.utils.data.DataArray;
import net.dv8tion.jda.api.utils.data.DataObject;
import net.dv8tion.jda.internal.JDAImpl;
import net.dv8tion.jda.internal.entities.EntityBuilder;

public class ThreadListSyncHandler extends SocketHandler
{
    public ThreadListSyncHandler(JDAImpl api)
    {
        super(api);
    }

    @Override
    protected Long handleInternally(DataObject content)
    {
        long guildId = content.getLong("guild_id");
        if (api.getGuildSetupController().isLocked(guildId))
            return guildId;

        EntityBuilder entityBuilder = api.getEntityBuilder();
        DataArray threadsArrayJson = content.getArray("threads");
        for (int i = 0; i < threadsArrayJson.length(); i++)
        {
            DataObject threadJson = threadsArrayJson.getObject(i);
            try
            {
                ThreadChannel thread = entityBuilder.createThreadChannel(threadJson, guildId);
                api.handleEvent(new ThreadRevealedEvent(api, responseNumber, thread));
            }
            catch (IllegalArgumentException ex)
            {
                if (!EntityBuilder.MISSING_CHANNEL.equals(ex.getMessage()))
                    throw ex;
                EntityBuilder.LOG.debug("Discarding thread on sync because of missing parent channel cache. JSON: {}", threadJson);
            }
        }

        return null;
    }
}