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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.managers;

import net.dv8tion.jda.api.entities.templates.Template;

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

/**
 * Manager providing functionality to update one or more fields for a {@link net.dv8tion.jda.api.entities.templates.Template Template}.
 *
 * Example
 * 
{@code
 * manager.setName("backup")
 *        .setDescription("backup for our server")
 *        .queue();
 * manager.reset(TemplateManager.DESCRIPTION | TemplateManager.NAME)
 *        .setName("server template")
 *        .setDescription(null)
 *        .queue();
 * }
 *
 * @see net.dv8tion.jda.api.entities.templates.Template#getManager()
 */
public interface TemplateManager extends Manager
{
    /** Used to reset the name field */
    long NAME        = 1;
    /** Used to reset the description field */
    long DESCRIPTION = 1 << 1;

    /**
     * Resets the fields specified by the provided bit-flag pattern.
     * You can specify a combination by using a bitwise OR concat of the flag constants.
     * 
Example: {@code manager.reset(TemplateManager.NAME | TemplateManager.DESCRIPTION);}
     *
     * Flag Constants:
     * 

     *     {@link #NAME}
     *     {@link #DESCRIPTION}
     * 
     *
     * @param  fields
     *         Integer value containing the flags to reset.
     *
     * @return TemplateManager for chaining convenience
     */
    @Nonnull
    @Override
    @CheckReturnValue
    TemplateManager reset(long fields);

    /**
     * Resets the fields specified by the provided bit-flag patterns.
     * 
Example: {@code manager.reset(TemplateManager.NAME, TemplateManager.DESCRIPTION);}
     *
     * Flag Constants:
     * 

     *     {@link #NAME}
     *     {@link #DESCRIPTION}
     * 
     *
     * @param  fields
     *         Integer values containing the flags to reset.
     *
     * @return TemplateManager for chaining convenience
     */
    @Nonnull
    @Override
    @CheckReturnValue
    TemplateManager reset(long... fields);

    /**
     * Sets the name of this {@link Template Template}.
     *
     * @param  name
     *         The new name for this {@link Template Template}
     *
     * @throws IllegalArgumentException
     *         If the provided name is {@code null} or not between 1-100 characters long
     *
     * @return TemplateManager for chaining convenience
     */
    @Nonnull
    @CheckReturnValue
    TemplateManager setName(@Nonnull String name);

    /**
     * Sets the description of this {@link Template Template}.
     *
     * @param  description
     *         The new description for this {@link Template Template}
     *
     * @throws IllegalArgumentException
     *         If the provided description is not between 0-120 characters long
     *
     * @return TemplateManager for chaining convenience
     */
    @Nonnull
    @CheckReturnValue
    TemplateManager setDescription(@Nullable String description);
}