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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.managers;

import net.dv8tion.jda.api.Permission;
import net.dv8tion.jda.api.entities.Guild;
import net.dv8tion.jda.api.entities.sticker.StickerSnowflake;
import net.dv8tion.jda.api.exceptions.InsufficientPermissionException;
import net.dv8tion.jda.api.managers.GuildStickerManager;
import net.dv8tion.jda.api.requests.Route;
import net.dv8tion.jda.api.utils.data.DataObject;
import net.dv8tion.jda.internal.utils.Checks;
import okhttp3.RequestBody;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.Collection;

public class GuildStickerManagerImpl extends ManagerBase implements GuildStickerManager
{
    private final Guild guild;
    private final long guildId;
    private String name;
    private String description;
    private String tags;

    public GuildStickerManagerImpl(Guild guild, long guildId, StickerSnowflake sticker)
    {
        super(guild.getJDA(), Route.Stickers.MODIFY_GUILD_STICKER.compile(Long.toUnsignedString(guildId), sticker.getId()));
        this.guild = guild;
        this.guildId = guildId;
        if (isPermissionChecksEnabled())
            checkPermissions();
    }

    @Nullable
    @Override
    public Guild getGuild()
    {
        return guild;
    }

    @Override
    public long getGuildIdLong()
    {
        return guildId;
    }

    @Nonnull
    @Override
    public GuildStickerManagerImpl reset(long fields)
    {
        super.reset(fields);
        if ((fields & NAME) == NAME)
            this.name = null;
        if ((fields & DESCRIPTION) == DESCRIPTION)
            this.description = null;
        if ((fields & TAGS) == TAGS)
            this.tags = null;
        return this;
    }

    @Nonnull
    @Override
    public GuildStickerManagerImpl reset(long... fields)
    {
        super.reset(fields);
        return this;
    }

    @Nonnull
    @Override
    public GuildStickerManagerImpl reset()
    {
        super.reset();
        this.name = null;
        this.description = null;
        this.tags = null;
        return this;
    }

    @Nonnull
    @Override
    public GuildStickerManager setName(@Nonnull String name)
    {
        Checks.inRange(name, 2, 30, "Name");
        this.name = name;
        set |= NAME;
        return this;
    }

    @Nonnull
    @Override
    public GuildStickerManager setDescription(@Nonnull String description)
    {
        Checks.inRange(description, 2, 100, "Description");
        this.description = description;
        set |= DESCRIPTION;
        return this;
    }

    @Nonnull
    @Override
    public GuildStickerManager setTags(@Nonnull Collection tags)
    {
        Checks.notEmpty(tags, "Tags");
        for (String tag : tags)
            Checks.notEmpty(tag, "Tags"); // checks for empty and null
        String csv = String.join(",", tags);
        Checks.notLonger(csv, 200, "List of tags");
        this.tags = csv;
        set |= TAGS;
        return this;
    }

    @Override
    protected RequestBody finalizeData()
    {
        DataObject object = DataObject.empty();
        if (shouldUpdate(NAME))
            object.put("name", name);
        if (shouldUpdate(DESCRIPTION))
            object.put("description", description);
        if (shouldUpdate(TAGS))
            object.put("tags", tags);
        reset();
        return getRequestBody(object);
    }

    @Override
    protected boolean checkPermissions()
    {
        if (guild != null && !guild.getSelfMember().hasPermission(Permission.MANAGE_GUILD_EXPRESSIONS))
            throw new InsufficientPermissionException(guild, Permission.MANAGE_GUILD_EXPRESSIONS);
        return super.checkPermissions();
    }
}