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MessageChannel.java
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MessageChannel.java
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/*
* Copyright 2015-2020 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.entities;
import net.dv8tion.jda.api.AccountType;
import net.dv8tion.jda.api.JDA;
import net.dv8tion.jda.api.exceptions.AccountTypeException;
import net.dv8tion.jda.api.requests.RestAction;
import net.dv8tion.jda.api.requests.restaction.AuditableRestAction;
import net.dv8tion.jda.api.requests.restaction.MessageAction;
import net.dv8tion.jda.api.requests.restaction.pagination.MessagePaginationAction;
import net.dv8tion.jda.api.requests.restaction.pagination.PaginationAction;
import net.dv8tion.jda.api.requests.restaction.pagination.ReactionPaginationAction;
import net.dv8tion.jda.api.utils.AttachmentOption;
import net.dv8tion.jda.api.utils.MiscUtil;
import net.dv8tion.jda.api.utils.data.DataArray;
import net.dv8tion.jda.internal.JDAImpl;
import net.dv8tion.jda.internal.entities.EntityBuilder;
import net.dv8tion.jda.internal.requests.RestActionImpl;
import net.dv8tion.jda.internal.requests.Route;
import net.dv8tion.jda.internal.requests.restaction.AuditableRestActionImpl;
import net.dv8tion.jda.internal.requests.restaction.MessageActionImpl;
import net.dv8tion.jda.internal.requests.restaction.pagination.MessagePaginationActionImpl;
import net.dv8tion.jda.internal.requests.restaction.pagination.ReactionPaginationActionImpl;
import net.dv8tion.jda.internal.utils.Checks;
import net.dv8tion.jda.internal.utils.EncodingUtil;
import javax.annotation.CheckReturnValue;
import javax.annotation.Nonnull;
import java.io.*;
import java.util.*;
import java.util.concurrent.CompletableFuture;
import java.util.function.Function;
/**
* Represents a Discord channel that can have {@link net.dv8tion.jda.api.entities.Message Messages} and files sent to it.
*
* <h1>Formattable</h1>
* This interface extends {@link java.util.Formattable Formattable} and can be used with a {@link java.util.Formatter Formatter}
* such as used by {@link String#format(String, Object...) String.format(String, Object...)}
* or {@link java.io.PrintStream#printf(String, Object...) PrintStream.printf(String, Object...)}.
*
* <p>This will use {@link #getName()} rather than {@link Object#toString()}!
* <br>Supported Features:
* <ul>
* <li><b>Alternative</b>
* <br> - Prepends the name with {@code #}
* (Example: {@code %#s} - results in <code>#{@link #getName()}</code>)</li>
*
* <li><b>Width/Left-Justification</b>
* <br> - Ensures the size of a format
* (Example: {@code %20s} - uses at minimum 20 chars;
* {@code %-10s} - uses left-justified padding)</li>
*
* <li><b>Precision</b>
* <br> - Cuts the content to the specified size
* (Example: {@code %.20s})</li>
* </ul>
*
* <p>More information on formatting syntax can be found in the {@link java.util.Formatter format syntax documentation}!
* <br><b>{@link net.dv8tion.jda.api.entities.TextChannel TextChannel} is a special case which uses {@link IMentionable#getAsMention() IMentionable.getAsMention()}
* by default and uses the <code>#{@link #getName()}</code> format as <u>alternative</u></b>
*
* @see TextChannel
* @see PrivateChannel
*/
public interface MessageChannel extends ISnowflake, Formattable
{
/**
* The id for the most recent message sent
* in this current MessageChannel.
* <br>This should only be used if {@link #hasLatestMessage()} returns {@code true}!
*
* <p>This value is updated on each {@link net.dv8tion.jda.api.events.message.MessageReceivedEvent MessageReceivedEvent}
* and <u><b>will be reset to {@code null} if the message associated with this ID gets deleted</b></u>
*
* @throws java.lang.IllegalStateException
* If no message id is available
*
* @return The most recent message's id
*/
@Nonnull
default String getLatestMessageId()
{
return Long.toUnsignedString(getLatestMessageIdLong());
}
/**
* Convenience method to delete messages in the most efficient way available.
* <br>This combines both {@link TextChannel#deleteMessagesByIds(Collection)} as well as {@link #deleteMessageById(long)}
* to delete all messages provided. No checks will be done to prevent failures, use {@link java.util.concurrent.CompletionStage#exceptionally(Function)}
* to handle failures.
*
* <p>For possible ErrorResponses see {@link #purgeMessagesById(long...)}.
*
* @param messageIds
* The message ids to delete
*
* @return List of futures representing all deletion tasks
*
* @see CompletableFuture#allOf(java.util.concurrent.CompletableFuture[])
*/
@Nonnull
default List<CompletableFuture<Void>> purgeMessagesById(@Nonnull List<String> messageIds)
{
if (messageIds == null || messageIds.isEmpty())
return Collections.emptyList();
long[] ids = new long[messageIds.size()];
for (int i = 0; i < ids.length; i++)
ids[i] = MiscUtil.parseSnowflake(messageIds.get(i));
return purgeMessagesById(ids);
}
/**
* Convenience method to delete messages in the most efficient way available.
* <br>This combines both {@link TextChannel#deleteMessagesByIds(Collection)} as well as {@link #deleteMessageById(long)}
* to delete all messages provided. No checks will be done to prevent failures, use {@link java.util.concurrent.CompletionStage#exceptionally(Function)}
* to handle failures.
*
* <p>For possible ErrorResponses see {@link #purgeMessagesById(long...)}.
*
* @param messageIds
* The message ids to delete
*
* @return List of futures representing all deletion tasks
*
* @see CompletableFuture#allOf(java.util.concurrent.CompletableFuture[])
*/
@Nonnull
default List<CompletableFuture<Void>> purgeMessagesById(@Nonnull String... messageIds)
{
if (messageIds == null || messageIds.length == 0)
return Collections.emptyList();
return purgeMessagesById(Arrays.asList(messageIds));
}
/**
* Convenience method to delete messages in the most efficient way available.
* <br>This combines both {@link TextChannel#deleteMessagesByIds(Collection)} as well as {@link Message#delete()}
* to delete all messages provided. No checks will be done to prevent failures, use {@link java.util.concurrent.CompletionStage#exceptionally(Function)}
* to handle failures.
*
* <p>For possible ErrorResponses see {@link #purgeMessagesById(long...)}.
*
* @param messages
* The messages to delete
*
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If one of the provided messages is from another user and cannot be deleted due to permissions
* @throws IllegalArgumentException
* If one of the provided messages is from another user and cannot be deleted because this is not in a guild
*
* @return List of futures representing all deletion tasks
*
* @see CompletableFuture#allOf(java.util.concurrent.CompletableFuture[])
*/
@Nonnull
default List<CompletableFuture<Void>> purgeMessages(@Nonnull Message... messages)
{
if (messages == null || messages.length == 0)
return Collections.emptyList();
return purgeMessages(Arrays.asList(messages));
}
/**
* Convenience method to delete messages in the most efficient way available.
* <br>This combines both {@link TextChannel#deleteMessagesByIds(Collection)} as well as {@link Message#delete()}
* to delete all messages provided. No checks will be done to prevent failures, use {@link java.util.concurrent.CompletionStage#exceptionally(Function)}
* to handle failures.
*
* <p>For possible ErrorResponses see {@link #purgeMessagesById(long...)}.
*
* @param messages
* The messages to delete
*
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If one of the provided messages is from another user and cannot be deleted due to permissions
* @throws IllegalArgumentException
* If one of the provided messages is from another user and cannot be deleted because this is not in a guild
*
* @return List of futures representing all deletion tasks
*
* @see CompletableFuture#allOf(java.util.concurrent.CompletableFuture[])
*/
@Nonnull
default List<CompletableFuture<Void>> purgeMessages(@Nonnull List<? extends Message> messages)
{
if (messages == null || messages.isEmpty())
return Collections.emptyList();
long[] ids = new long[messages.size()];
for (int i = 0; i < ids.length; i++)
ids[i] = messages.get(i).getIdLong();
return purgeMessagesById(ids);
}
/**
* Convenience method to delete messages in the most efficient way available.
* <br>This combines both {@link TextChannel#deleteMessagesByIds(Collection)} as well as {@link #deleteMessageById(long)}
* to delete all messages provided. No checks will be done to prevent failures, use {@link java.util.concurrent.CompletionStage#exceptionally(Function)}
* to handle failures.
*
* <p>Possible ErrorResponses include:
* <ul>
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#UNKNOWN_CHANNEL UNKNOWN_CHANNEL}
* <br>if this channel was deleted</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#UNKNOWN_MESSAGE UNKNOWN_MESSAGE}
* <br>if any of the provided messages does not exist</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_ACCESS MISSING_ACCESS}
* <br>if we were removed from the channel</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_PERMISSIONS MISSING_PERMISSIONS}
* <br>The send request was attempted after the account lost
* {@link net.dv8tion.jda.api.Permission#MESSAGE_MANAGE Permission.MESSAGE_MANAGE} in the channel.</li>
* </ul>
*
* @param messageIds
* The message ids to delete
*
* @return List of futures representing all deletion tasks
*
* @see CompletableFuture#allOf(java.util.concurrent.CompletableFuture[])
*/
@Nonnull
default List<CompletableFuture<Void>> purgeMessagesById(@Nonnull long... messageIds)
{
if (messageIds == null || messageIds.length == 0)
return Collections.emptyList();
List<CompletableFuture<Void>> list = new ArrayList<>(messageIds.length);
TreeSet<Long> sortedIds = new TreeSet<>(Comparator.reverseOrder());
for (long messageId : messageIds)
sortedIds.add(messageId);
for (long messageId : sortedIds)
list.add(deleteMessageById(messageId).submit());
return list;
}
/**
* The id for the most recent message sent
* in this current MessageChannel.
* <br>This should only be used if {@link #hasLatestMessage()} returns {@code true}!
*
* <p>This value is updated on each {@link net.dv8tion.jda.api.events.message.MessageReceivedEvent MessageReceivedEvent}
* and <u><b>will be reset to {@code null} if the message associated with this ID gets deleted</b></u>
*
* @throws java.lang.IllegalStateException
* If no message id is available
*
* @return The most recent message's id
*/
long getLatestMessageIdLong();
/**
* Whether this MessageChannel contains a tracked most recent
* message or not.
*
* <p>This does not directly mean that {@link #getHistory()} will be unable to retrieve past messages,
* it merely means that the latest message is untracked by our internal cache meaning that
* if this returns {@code false} the {@link #getLatestMessageId()}
* method will throw an {@link java.util.NoSuchElementException NoSuchElementException}
*
* @return True, if a latest message id is available for retrieval by {@link #getLatestMessageId()}
*
* @see #getLatestMessageId()
*/
boolean hasLatestMessage();
/**
* This method is a shortcut method to return the following information in the following situation:
* If the MessageChannel is instance of..
* <ul>
* <li><b>TextChannel</b> - Returns {@link TextChannel#getName()}</li>
* <li><b>PrivateChannel</b> Returns {@link PrivateChannel#getUser()}{@link net.dv8tion.jda.api.entities.User#getName() .getName()}</li>
* </ul>
*
* @return Never-null "name" of the MessageChannel. Different implementations determine what the name.
*/
@Nonnull
String getName();
/**
* The {@link net.dv8tion.jda.api.entities.ChannelType ChannelType} of this MessageChannel.
*
* @return The ChannelType for this channel
*/
@Nonnull
ChannelType getType();
/**
* Returns the {@link net.dv8tion.jda.api.JDA JDA} instance of this MessageChannel
*
* @return the corresponding JDA instance
*/
@Nonnull
JDA getJDA();
/**
* Sends a plain text message to this channel.
* <br>This will fail if this channel is an instance of {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and
* the currently logged in account does not have permissions to send a message to this channel.
* <br>To determine if you are able to send a message in a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} use
* {@link net.dv8tion.jda.api.entities.Member#hasPermission(GuildChannel, net.dv8tion.jda.api.Permission...)
* guild.getSelfMember().hasPermission(channel, Permission.MESSAGE_WRITE)}.
*
* <p>For {@link net.dv8tion.jda.api.requests.ErrorResponse} information, refer to {@link #sendMessage(Message)}.
*
* @param text
* the text to send to the MessageChannel.
*
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If this is a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and the logged in account does
* not have {@link net.dv8tion.jda.api.Permission#MESSAGE_WRITE Permission.MESSAGE_WRITE}
* @throws java.lang.IllegalArgumentException
* if the provided text is null, empty or longer than 2000 characters
* @throws java.lang.UnsupportedOperationException
* If this is a {@link net.dv8tion.jda.api.entities.PrivateChannel PrivateChannel}
* and both the currently logged in account and the target user are bots.
*
* @return {@link MessageAction MessageAction}
* <br>The newly created Message after it has been sent to Discord.
*
* @see net.dv8tion.jda.api.MessageBuilder
*/
@Nonnull
@CheckReturnValue
default MessageAction sendMessage(@Nonnull CharSequence text)
{
Checks.notEmpty(text, "Provided text for message");
Checks.check(text.length() <= 2000, "Provided text for message must be less than 2000 characters in length");
Route.CompiledRoute route = Route.Messages.SEND_MESSAGE.compile(getId());
if (text instanceof StringBuilder)
return new MessageActionImpl(getJDA(), route, this, (StringBuilder) text);
else
return new MessageActionImpl(getJDA(), route, this).append(text);
}
/**
* Sends a formatted text message to this channel.
* <br>This will fail if this channel is an instance of {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and
* the currently logged in account does not have permissions to send a message to this channel.
* <br>To determine if you are able to send a message in a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} use
* {@link net.dv8tion.jda.api.entities.Member#hasPermission(GuildChannel, net.dv8tion.jda.api.Permission...)
* guild.getSelfMember().hasPermission(channel, Permission.MESSAGE_WRITE)}.
*
* <p>For {@link net.dv8tion.jda.api.requests.ErrorResponse} information, refer to {@link #sendMessage(Message)}.
*
* @param format
* The string that should be formatted, if this is {@code null} or empty
* the content of the Message would be empty and cause a builder exception.
* @param args
* The arguments for your format
*
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If this is a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and the logged in account does
* not have
* <ul>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_WRITE Permission.MESSAGE_WRITE}</li>
* </ul>
* @throws java.lang.IllegalArgumentException
* If the provided format text is {@code null}, empty or longer than 2000 characters
* @throws java.lang.UnsupportedOperationException
* If this is a {@link net.dv8tion.jda.api.entities.PrivateChannel PrivateChannel}
* and both the currently logged in account and the target user are bots.
* @throws java.util.IllegalFormatException
* If a format string contains an illegal syntax,
* a format specifier that is incompatible with the given arguments,
* insufficient arguments given the format string, or other illegal conditions.
* For specification of all possible formatting errors,
* see the <a href="../util/Formatter.html#detail">Details</a>
* section of the formatter class specification.
*
* @return {@link MessageAction MessageAction}
* <br>The newly created Message after it has been sent to Discord.
*/
@Nonnull
@CheckReturnValue
default MessageAction sendMessageFormat(@Nonnull String format, @Nonnull Object... args)
{
Checks.notEmpty(format, "Format");
return sendMessage(String.format(format, args));
}
/**
* Sends a specified {@link net.dv8tion.jda.api.entities.MessageEmbed MessageEmbed} as a {@link net.dv8tion.jda.api.entities.Message Message}
* to this channel.
* <br>This will fail if this channel is an instance of {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and
* the currently logged in account does not have permissions to send a message to this channel.
* <br>To determine if you are able to send a message in a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} use
* {@link net.dv8tion.jda.api.entities.Member#hasPermission(GuildChannel, net.dv8tion.jda.api.Permission...)
* guild.getSelfMember().hasPermission(channel, Permission.MESSAGE_WRITE)}.
*
* <p>For {@link net.dv8tion.jda.api.requests.ErrorResponse} information, refer to {@link #sendMessage(Message)}.
*
* @param embed
* the {@link net.dv8tion.jda.api.entities.MessageEmbed MessageEmbed} to send
*
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If this is a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and the logged in account does
* not have
* <ul>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_WRITE Permission.MESSAGE_WRITE}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_EMBED_LINKS Permission.MESSAGE_EMBED_LINKS}</li>
* </ul>
* @throws java.lang.IllegalArgumentException
* If the provided embed is {@code null} or if the provided {@link net.dv8tion.jda.api.entities.MessageEmbed MessageEmbed}
* is not {@link net.dv8tion.jda.api.entities.MessageEmbed#isSendable() sendable}
* @throws java.lang.UnsupportedOperationException
* If this is a {@link net.dv8tion.jda.api.entities.PrivateChannel PrivateChannel}
* and both the currently logged in account and the target user are bots.
*
* @return {@link MessageAction MessageAction}
* <br>The newly created Message after it has been sent to Discord.
*
* @see net.dv8tion.jda.api.MessageBuilder
* @see net.dv8tion.jda.api.EmbedBuilder
*/
@Nonnull
@CheckReturnValue
default MessageAction sendMessage(@Nonnull MessageEmbed embed)
{
Checks.notNull(embed, "Provided embed");
Route.CompiledRoute route = Route.Messages.SEND_MESSAGE.compile(getId());
return new MessageActionImpl(getJDA(), route, this).embed(embed);
}
/**
* Sends a specified {@link net.dv8tion.jda.api.entities.Message Message} to this channel.
* <br>This will fail if this channel is an instance of {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and
* the currently logged in account does not have permissions to send a message to this channel.
* <br>To determine if you are able to send a message in a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} use
* {@link net.dv8tion.jda.api.entities.Member#hasPermission(GuildChannel, net.dv8tion.jda.api.Permission...)
* guild.getSelfMember().hasPermission(channel, Permission.MESSAGE_WRITE)}.
*
* <p>The following {@link net.dv8tion.jda.api.requests.ErrorResponse ErrorResponses} are possible:
* <ul>
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_ACCESS MISSING_ACCESS}
* <br>The request was attempted after the account lost access to the {@link net.dv8tion.jda.api.entities.Guild Guild}
* typically due to being kicked or removed, or after {@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}
* was revoked in the {@link net.dv8tion.jda.api.entities.TextChannel TextChannel}</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_PERMISSIONS MISSING_PERMISSIONS}
* <br>The send request was attempted after the account lost {@link net.dv8tion.jda.api.Permission#MESSAGE_WRITE Permission.MESSAGE_WRITE} in
* the {@link net.dv8tion.jda.api.entities.TextChannel TextChannel}.</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#CANNOT_SEND_TO_USER CANNOT_SEND_TO_USER}
* <br>If this is a {@link net.dv8tion.jda.api.entities.PrivateChannel PrivateChannel} and the currently logged in account
* does not share any Guilds with the recipient User</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#UNKNOWN_CHANNEL UNKNOWN_CHANNEL}
* <br>The send request was attempted after the channel was deleted.</li>
* </ul>
*
* @param msg
* the {@link net.dv8tion.jda.api.entities.Message Message} to send
*
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If this is a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and the logged in account does
* not have
* <ul>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_WRITE Permission.MESSAGE_WRITE}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_EMBED_LINKS Permission.MESSAGE_EMBED_LINKS} (if this message is only an embed)</li>
* </ul>
* @throws java.lang.IllegalArgumentException
* If the provided message is {@code null} or the provided {@link net.dv8tion.jda.api.entities.Message Message}
* contains a {@link net.dv8tion.jda.api.entities.MessageEmbed MessageEmbed}
* that is not {@link net.dv8tion.jda.api.entities.MessageEmbed#isSendable() sendable}
* @throws java.lang.UnsupportedOperationException
* If this is a {@link net.dv8tion.jda.api.entities.PrivateChannel PrivateChannel}
* and both the currently logged in account and the target user are bots.
*
* @return {@link MessageAction MessageAction}
* <br>The newly created Message after it has been sent to Discord.
*
* @see net.dv8tion.jda.api.MessageBuilder
*/
@Nonnull
@CheckReturnValue
default MessageAction sendMessage(@Nonnull Message msg)
{
Checks.notNull(msg, "Message");
Route.CompiledRoute route = Route.Messages.SEND_MESSAGE.compile(getId());
return new MessageActionImpl(getJDA(), route, this).apply(msg);
}
/**
* Uploads a file to the Discord servers and sends it to this {@link net.dv8tion.jda.api.entities.MessageChannel MessageChannel}.
* Sends the provided {@link net.dv8tion.jda.api.entities.Message Message} with the uploaded file.
* <br>If you want to send a Message with the uploaded file, you can add the file to the {@link net.dv8tion.jda.api.requests.restaction.MessageAction}
* returned by {@link #sendMessage(Message)}.
*
* <p>This is a shortcut to {@link #sendFile(java.io.File, String, AttachmentOption...)} by way of using {@link java.io.File#getName()}.
* <pre>sendFile(file, file.getName())</pre>
*
* <p><b>Uploading images with Embeds</b>
* <br>When uploading an <u>image</u> you can reference said image using the specified filename as URI {@code attachment://filename.ext}.
*
* <p><u>Example</u>
* <pre><code>
* MessageChannel channel; // = reference of a MessageChannel
* EmbedBuilder embed = new EmbedBuilder();
* File file = new File("cat.gif");
* embed.setImage("attachment://cat.gif")
* .setDescription("This is a cute cat :3");
* channel.sendFile(file).embed(embed.build()).queue();
* </code></pre>
*
* <p>For {@link net.dv8tion.jda.api.requests.ErrorResponse} information, refer to the documentation for {@link #sendFile(java.io.File, String, AttachmentOption...)}.
*
* @param file
* The file to upload to the {@link net.dv8tion.jda.api.entities.MessageChannel MessageChannel}.
* @param options
* Possible options to apply to this attachment, such as marking it as spoiler image
*
* @throws java.lang.IllegalArgumentException
* <ul>
* <li>Provided {@code file} is null.</li>
* <li>Provided {@code file} does not exist.</li>
* <li>Provided {@code file} is unreadable.</li>
* <li>Provided {@code file} is greater than 8 MiB on a normal or 50 MiB on a nitro account.</li>
* </ul>
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If this is a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and the logged in account does not have
* <ul>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_WRITE Permission.MESSAGE_WRITE}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_ATTACH_FILES Permission.MESSAGE_ATTACH_FILES}</li>
* </ul>
* @throws java.lang.UnsupportedOperationException
* If this is a {@link net.dv8tion.jda.api.entities.PrivateChannel PrivateChannel}
* and both the currently logged in account and the target user are bots.
*
* @return {@link MessageAction MessageAction}
* <br>Providing the {@link net.dv8tion.jda.api.entities.Message Message} created from this upload.
*/
@Nonnull
@CheckReturnValue
default MessageAction sendFile(@Nonnull File file, @Nonnull AttachmentOption... options)
{
Checks.notNull(file, "file");
return sendFile(file, file.getName(), options);
}
/**
* Uploads a file to the Discord servers and sends it to this {@link net.dv8tion.jda.api.entities.MessageChannel MessageChannel}.
* Sends the provided {@link net.dv8tion.jda.api.entities.Message Message} with the uploaded file.
* <br>If you want to send a Message with the uploaded file, you can add the file to the {@link net.dv8tion.jda.api.requests.restaction.MessageAction}
* returned by {@link #sendMessage(Message)}.
*
* <p>The {@code fileName} parameter is used to inform Discord about what the file should be called. This is 2 fold:
* <ol>
* <li>The file name provided is the name that is found in {@link net.dv8tion.jda.api.entities.Message.Attachment#getFileName()}
* after upload and it is the name that will show up in the client when the upload is displayed.
* <br>Note: The fileName does not show up on the Desktop client for images. It does on mobile however.</li>
* <li>The extension of the provided fileName also determines how Discord will treat the file. Discord currently only
* has special handling for image file types, but the fileName's extension must indicate that it is an image file.
* This means it has to end in something like .png, .jpg, .jpeg, .gif, etc. As a note, you can also not provide
* a full name for the file and instead ONLY provide the extension like "png" or "gif" and Discord will generate
* a name for the upload and append the fileName as the extension.</li>
* </ol>
*
* <p><b>Uploading images with Embeds</b>
* <br>When uploading an <u>image</u> you can reference said image using the specified filename as URI {@code attachment://filename.ext}.
*
* <p><u>Example</u>
* <pre><code>
* MessageChannel channel; // = reference of a MessageChannel
* EmbedBuilder embed = new EmbedBuilder();
* File file = new File("cat_01.gif");
* embed.setImage("attachment://cat.gif") // we specify this in sendFile as "cat.gif"
* .setDescription("This is a cute cat :3");
* channel.sendFile(file, "cat.gif").embed(embed.build()).queue();
* </code></pre>
*
* <p>The following {@link net.dv8tion.jda.api.requests.ErrorResponse ErrorResponses} are possible:
* <ul>
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_ACCESS MISSING_ACCESS}
* <br>The send request was attempted after the account lost access to the {@link net.dv8tion.jda.api.entities.Guild Guild}
* typically due to being kicked or removed.</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_PERMISSIONS MISSING_PERMISSIONS}
* <br>The send request was attempted after the account lost {@link net.dv8tion.jda.api.Permission#MESSAGE_WRITE Permission.MESSAGE_WRITE} or
* {@link net.dv8tion.jda.api.Permission#MESSAGE_ATTACH_FILES Permission.MESSAGE_ATTACH_FILES}
* in the {@link net.dv8tion.jda.api.entities.TextChannel TextChannel}.</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#CANNOT_SEND_TO_USER CANNOT_SEND_TO_USER}
* <br>If this is a {@link net.dv8tion.jda.api.entities.PrivateChannel PrivateChannel} and the currently logged in account
* does not share any Guilds with the recipient User</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#UNKNOWN_CHANNEL UNKNOWN_CHANNEL}
* <br>The send request was attempted after the channel was deleted.</li>
* </ul>
*
* @param file
* The file to upload to the {@link net.dv8tion.jda.api.entities.MessageChannel MessageChannel}.
* @param fileName
* The name that should be sent to discord
* @param options
* Possible options to apply to this attachment, such as marking it as spoiler image
*
* @throws java.lang.IllegalArgumentException
* <ul>
* <li>Provided {@code file} is null.</li>
* <li>Provided {@code file} does not exist.</li>
* <li>Provided {@code file} is unreadable.</li>
* <li>Provided {@code file} is greater than 8 MiB on a normal or 50 MiB on a nitro account.</li>
* </ul>
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If this is a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and the logged in account does not have
* <ul>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_WRITE Permission.MESSAGE_WRITE}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_ATTACH_FILES Permission.MESSAGE_ATTACH_FILES}</li>
* </ul>
* @throws java.lang.UnsupportedOperationException
* If this is a {@link net.dv8tion.jda.api.entities.PrivateChannel PrivateChannel}
* and both the currently logged in account and the target user are bots.
*
* @return {@link MessageAction MessageAction}
* <br>Providing the {@link net.dv8tion.jda.api.entities.Message Message} created from this upload.
*/
@Nonnull
@CheckReturnValue
default MessageAction sendFile(@Nonnull File file, @Nonnull String fileName, @Nonnull AttachmentOption... options)
{
Checks.notNull(file, "file");
Checks.check(file.exists() && file.canRead(),
"Provided file doesn't exist or cannot be read!");
Checks.notNull(fileName, "fileName");
try
{
return sendFile(new FileInputStream(file), fileName, options);
}
catch (FileNotFoundException ex)
{
throw new IllegalArgumentException(ex);
}
}
/**
* Uploads a file to the Discord servers and sends it to this {@link net.dv8tion.jda.api.entities.MessageChannel MessageChannel}.
* Sends the provided {@link net.dv8tion.jda.api.entities.Message Message} with the uploaded file.
* <br>If you want to send a Message with the uploaded file, you can add the file to the {@link net.dv8tion.jda.api.requests.restaction.MessageAction}
* returned by {@link #sendMessage(Message)}.
* <br>This allows you to send an {@link java.io.InputStream InputStream} as substitute to a file.
*
* <p>For information about the {@code fileName} parameter, Refer to the documentation for {@link #sendFile(java.io.File, String, AttachmentOption...)}.
* <br>For {@link net.dv8tion.jda.api.requests.ErrorResponse} information, refer to the documentation for {@link #sendFile(java.io.File, String, AttachmentOption...)}.
*
* <p><b>Uploading images with Embeds</b>
* <br>When uploading an <u>image</u> you can reference said image using the specified filename as URI {@code attachment://filename.ext}.
*
* <p><u>Example</u>
* <pre><code>
* MessageChannel channel; // = reference of a MessageChannel
* EmbedBuilder embed = new EmbedBuilder();
* InputStream file = new URL("https://http.cat/500").openStream();
* embed.setImage("attachment://cat.png") // we specify this in sendFile as "cat.png"
* .setDescription("This is a cute cat :3");
* channel.sendFile(file, "cat.png").embed(embed.build()).queue();
* </code></pre>
*
* @param data
* The InputStream data to upload to the {@link net.dv8tion.jda.api.entities.MessageChannel MessageChannel}.
* @param fileName
* The name that should be sent to discord
* <br>Refer to the documentation for {@link #sendFile(java.io.File, String, AttachmentOption...)} for information about this parameter.
* @param options
* Possible options to apply to this attachment, such as marking it as spoiler image
*
* @throws java.lang.IllegalArgumentException
* If the provided file or filename is {@code null} or {@code empty}.
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If this is a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and the logged in account does not have
* <ul>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_WRITE Permission.MESSAGE_WRITE}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_ATTACH_FILES Permission.MESSAGE_ATTACH_FILES}</li>
* </ul>
* @throws java.lang.UnsupportedOperationException
* If this is a {@link net.dv8tion.jda.api.entities.PrivateChannel PrivateChannel}
* and both the currently logged in account and the target user are bots.
*
* @return {@link MessageAction MessageAction}
* <br>Provides the {@link net.dv8tion.jda.api.entities.Message Message} created from this upload.
*/
@Nonnull
@CheckReturnValue
default MessageAction sendFile(@Nonnull InputStream data, @Nonnull String fileName, @Nonnull AttachmentOption... options)
{
Checks.notNull(data, "data InputStream");
Checks.notNull(fileName, "fileName");
Route.CompiledRoute route = Route.Messages.SEND_MESSAGE.compile(getId());
return new MessageActionImpl(getJDA(), route, this).addFile(data, fileName, options);
}
/**
* Uploads a file to the Discord servers and sends it to this {@link net.dv8tion.jda.api.entities.MessageChannel MessageChannel}.
* Sends the provided {@link net.dv8tion.jda.api.entities.Message Message} with the uploaded file.
* <br>If you want to send a Message with the uploaded file, you can add the file to the {@link net.dv8tion.jda.api.requests.restaction.MessageAction}
* returned by {@link #sendMessage(Message)}.
* <br>This allows you to send an {@code byte[]} as substitute to a file.
*
* <p>For information about the {@code fileName} parameter, Refer to the documentation for {@link #sendFile(java.io.File, String, AttachmentOption...)}.
* <br>For {@link net.dv8tion.jda.api.requests.ErrorResponse} information, refer to the documentation for {@link #sendFile(java.io.File, String, AttachmentOption...)}.
*
* <p><b>Uploading images with Embeds</b>
* <br>When uploading an <u>image</u> you can reference said image using the specified filename as URI {@code attachment://filename.ext}.
*
* <p><u>Example</u>
* <pre><code>
* MessageChannel channel; // = reference of a MessageChannel
* EmbedBuilder embed = new EmbedBuilder();
* byte[] file = IOUtil.readFully(new URL("https://http.cat/500").openStream());
* embed.setImage("attachment://cat.png") // we specify this in sendFile as "cat.png"
* .setDescription("This is a cute cat :3");
* channel.sendFile(file, "cat.png").embed(embed.build()).queue();
* </code></pre>
*
* @param data
* The {@code byte[]} data to upload to the {@link net.dv8tion.jda.api.entities.MessageChannel MessageChannel}.
* @param fileName
* The name that should be sent to discord.
* <br>Refer to the documentation for {@link #sendFile(java.io.File, String, AttachmentOption...)} for information about this parameter.
* @param options
* Possible options to apply to this attachment, such as marking it as spoiler image
*
* @throws java.lang.IllegalArgumentException
* <ul>
* <li>If the provided filename is {@code null} or {@code empty}</li>
* <li>If the provided data is larger than 8 MiB on a normal or 50 MiB on a nitro account</li>
* </ul>
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If this is a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and the logged in account does not have
* <ul>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_WRITE Permission.MESSAGE_WRITE}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_ATTACH_FILES Permission.MESSAGE_ATTACH_FILES}</li>
* </ul>
* @throws java.lang.UnsupportedOperationException
* If this is a {@link net.dv8tion.jda.api.entities.PrivateChannel PrivateChannel}
* and both the currently logged in account and the target user are bots.
*
* @return {@link MessageAction MessageAction}
* <br>Provides the {@link net.dv8tion.jda.api.entities.Message Message} created from this upload.
*/
@Nonnull
@CheckReturnValue
default MessageAction sendFile(@Nonnull byte[] data, @Nonnull String fileName, @Nonnull AttachmentOption... options)
{
Checks.notNull(data, "data");
Checks.notNull(fileName, "fileName");
return sendFile(new ByteArrayInputStream(data), fileName, options);
}
/**
* Attempts to get a {@link net.dv8tion.jda.api.entities.Message Message} from the Discord's servers that has
* the same id as the id provided.
* <br>Note: when retrieving a Message, you must retrieve it from the channel it was sent in!
*
* <p><b>Only bots can use this endpoint! A similar behaviour can be simulated using {@link #getHistoryAround(long, int)}!</b>
*
* <p>The following {@link net.dv8tion.jda.api.requests.ErrorResponse ErrorResponses} are possible:
* <ul>
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_ACCESS MISSING_ACCESS}
* <br>The request was attempted after the account lost access to the {@link net.dv8tion.jda.api.entities.Guild Guild}
* typically due to being kicked or removed, or after {@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}
* was revoked in the {@link net.dv8tion.jda.api.entities.TextChannel TextChannel}</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_PERMISSIONS MISSING_PERMISSIONS}
* <br>The request was attempted after the account lost {@link net.dv8tion.jda.api.Permission#MESSAGE_HISTORY Permission.MESSAGE_HISTORY}
* in the {@link net.dv8tion.jda.api.entities.TextChannel TextChannel}.</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#UNKNOWN_MESSAGE UNKNOWN_MESSAGE}
* <br>The provided {@code id} does not refer to a message sent in this channel or the message has already been deleted.</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#UNKNOWN_CHANNEL UNKNOWN_CHANNEL}
* <br>The request was attempted after the channel was deleted.</li>
* </ul>
*
* @param messageId
* The id of the sought after Message
*
* @throws net.dv8tion.jda.api.exceptions.AccountTypeException
* If the currently logged in account is not from {@link net.dv8tion.jda.api.AccountType#BOT AccountType.BOT}
* @throws IllegalArgumentException
* if the provided {@code messageId} is null or empty.
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If this is a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and the logged in account does not have
* <ul>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_HISTORY Permission.MESSAGE_HISTORY}</li>
* </ul>
*
* @return {@link net.dv8tion.jda.api.requests.RestAction RestAction} - Type: Message
* <br>The Message defined by the provided id.
*/
@Nonnull
@CheckReturnValue
default RestAction<Message> retrieveMessageById(@Nonnull String messageId)
{
AccountTypeException.check(getJDA().getAccountType(), AccountType.BOT);
Checks.isSnowflake(messageId, "Message ID");
JDAImpl jda = (JDAImpl) getJDA();
Route.CompiledRoute route = Route.Messages.GET_MESSAGE.compile(getId(), messageId);
return new RestActionImpl<>(jda, route,
(response, request) -> jda.getEntityBuilder().createMessage(response.getObject(), MessageChannel.this, false));
}
/**
* Attempts to get a {@link net.dv8tion.jda.api.entities.Message Message} from the Discord's servers that has
* the same id as the id provided.
* <br>Note: when retrieving a Message, you must retrieve it from the channel it was sent in!
*
* <p><b>Only bots can use this endpoint! A similar behaviour can be simulated using {@link #getHistoryAround(long, int)}!</b>
*
* <p>The following {@link net.dv8tion.jda.api.requests.ErrorResponse ErrorResponses} are possible:
* <ul>
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_ACCESS MISSING_ACCESS}
* <br>The request was attempted after the account lost access to the {@link net.dv8tion.jda.api.entities.Guild Guild}
* typically due to being kicked or removed, or after {@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}
* was revoked in the {@link net.dv8tion.jda.api.entities.TextChannel TextChannel}</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_PERMISSIONS MISSING_PERMISSIONS}
* <br>The request was attempted after the account lost {@link net.dv8tion.jda.api.Permission#MESSAGE_HISTORY Permission.MESSAGE_HISTORY}
* in the {@link net.dv8tion.jda.api.entities.TextChannel TextChannel}.</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#UNKNOWN_MESSAGE UNKNOWN_MESSAGE}
* <br>The provided {@code id} does not refer to a message sent in this channel or the message has already been deleted.</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#UNKNOWN_CHANNEL UNKNOWN_CHANNEL}
* <br>The request was attempted after the channel was deleted.</li>
* </ul>
*
* @param messageId
* The id of the sought after Message
*
* @throws net.dv8tion.jda.api.exceptions.AccountTypeException
* If the currently logged in account is not from {@link net.dv8tion.jda.api.AccountType#BOT AccountType.BOT}
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If this is a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and the logged in account does not have
* <ul>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}</li>
* <li>{@link net.dv8tion.jda.api.Permission#MESSAGE_HISTORY Permission.MESSAGE_HISTORY}</li>
* </ul>
*
* @return {@link net.dv8tion.jda.api.requests.RestAction RestAction} - Type: Message
* <br>The Message defined by the provided id.
*/
@Nonnull
@CheckReturnValue
default RestAction<Message> retrieveMessageById(long messageId)
{
return retrieveMessageById(Long.toUnsignedString(messageId));
}
/**
* Attempts to delete a {@link net.dv8tion.jda.api.entities.Message Message} from the Discord servers that has
* the same id as the id provided.
*
* <p>The following {@link net.dv8tion.jda.api.requests.ErrorResponse ErrorResponses} are possible:
* <ul>
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_ACCESS MISSING_ACCESS}
* <br>The request was attempted after the account lost access to the {@link net.dv8tion.jda.api.entities.Guild Guild}
* typically due to being kicked or removed, or after {@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}
* was revoked in the {@link net.dv8tion.jda.api.entities.TextChannel TextChannel}</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_PERMISSIONS MISSING_PERMISSIONS}
* <br>The request attempted to delete a Message in a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel}
* that was not sent by the currently logged in account.</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#INVALID_DM_ACTION INVALID_DM_ACTION}
* <br>Attempted to delete a Message in a {@link net.dv8tion.jda.api.entities.PrivateChannel PrivateChannel}
* that was not sent by the currently logged in account.</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#UNKNOWN_MESSAGE UNKNOWN_MESSAGE}
* <br>The provided {@code id} does not refer to a message sent in this channel or the message has already been deleted.</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#UNKNOWN_CHANNEL UNKNOWN_CHANNEL}
* <br>The request was attempted after the channel was deleted.</li>
* </ul>
*
* @param messageId
* The id of the Message that should be deleted
*
* @throws IllegalArgumentException
* if the provided messageId is null
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If this is a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and the logged in account does not have
* {@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}.
*
* @return {@link net.dv8tion.jda.api.requests.RestAction RestAction} - Type: Void
*/
@Nonnull
@CheckReturnValue
default AuditableRestAction<Void> deleteMessageById(@Nonnull String messageId)
{
Checks.isSnowflake(messageId, "Message ID");
Route.CompiledRoute route = Route.Messages.DELETE_MESSAGE.compile(getId(), messageId);
return new AuditableRestActionImpl<>(getJDA(), route);
}
/**
* Attempts to delete a {@link net.dv8tion.jda.api.entities.Message Message} from the Discord servers that has
* the same id as the id provided.
*
* <p>The following {@link net.dv8tion.jda.api.requests.ErrorResponse ErrorResponses} are possible:
* <ul>
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_ACCESS MISSING_ACCESS}
* <br>The request was attempted after the account lost access to the {@link net.dv8tion.jda.api.entities.Guild Guild}
* typically due to being kicked or removed, or after {@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}
* was revoked in the {@link net.dv8tion.jda.api.entities.TextChannel TextChannel}</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#MISSING_PERMISSIONS MISSING_PERMISSIONS}
* <br>The request attempted to delete a Message in a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel}
* that was not sent by the currently logged in account.</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#INVALID_DM_ACTION INVALID_DM_ACTION}
* <br>Attempted to delete a Message in a {@link net.dv8tion.jda.api.entities.PrivateChannel PrivateChannel}
* that was not sent by the currently logged in account.</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#UNKNOWN_MESSAGE UNKNOWN_MESSAGE}
* <br>The provided {@code id} does not refer to a message sent in this channel or the message has already been deleted.</li>
*
* <li>{@link net.dv8tion.jda.api.requests.ErrorResponse#UNKNOWN_CHANNEL UNKNOWN_CHANNEL}
* <br>The request was attempted after the channel was deleted.</li>
* </ul>
*
* @param messageId
* The id of the Message that should be deleted
*
* @throws IllegalArgumentException
* if the provided messageId is not positive
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If this is a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel} and the logged in account does not have
* {@link net.dv8tion.jda.api.Permission#MESSAGE_READ Permission.MESSAGE_READ}.
*
* @return {@link net.dv8tion.jda.api.requests.RestAction RestAction} - Type: Void
*/
@Nonnull
@CheckReturnValue
default AuditableRestAction<Void> deleteMessageById(long messageId)
{
return deleteMessageById(Long.toUnsignedString(messageId));
}
/**
* Creates a new {@link net.dv8tion.jda.api.entities.MessageHistory MessageHistory} object for each call of this method.
* <br>MessageHistory is <b>NOT</b> an internal message cache, but rather it queries the Discord servers for previously sent messages.
*
* @throws net.dv8tion.jda.api.exceptions.InsufficientPermissionException
* If this is a {@link net.dv8tion.jda.api.entities.TextChannel TextChannel}
* and the currently logged in account does not have the permission {@link net.dv8tion.jda.api.Permission#MESSAGE_HISTORY MESSAGE_HISTORY}
*
* @return A {@link net.dv8tion.jda.api.entities.MessageHistory MessageHistory} related to this channel.
*/
default MessageHistory getHistory()
{
return new MessageHistory(this);
}
/**
* A {@link PaginationAction PaginationAction} implementation
* that allows to {@link Iterable iterate} over recent {@link net.dv8tion.jda.api.entities.Message Messages} of
* this MessageChannel.
* <br>This is <b>not</b> a cache for received messages and it can only view messages that were sent
* before. This iterates chronologically backwards (from present to past).
*
* <p><b><u>It is recommended not to use this in an enhanced for-loop without end conditions as it might cause memory
* overflows in channels with a long message history.</u></b>
*
* <h1>Examples</h1>
* <pre>{@code
* public CompletableFuture<List<Message>> getMessagesByUser(MessageChannel channel, User user) {
* return channel.getIterableHistory()