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Add XML docs & rewrite GetMessagesAsync docs

This commit rewrites the remarks section of GetMessagesAsync, as well as adding examples to several methods.
pull/1161/head
Still Hsu 7 years ago
parent
commit
6d355ed125
No known key found for this signature in database GPG Key ID: 8601A145FDA95209
8 changed files with 401 additions and 35 deletions
  1. +45
    -1
      src/Discord.Net.Commands/Results/ExecuteResult.cs
  2. +22
    -4
      src/Discord.Net.Commands/Results/IResult.cs
  3. +3
    -0
      src/Discord.Net.Commands/Results/ParseResult.cs
  4. +89
    -8
      src/Discord.Net.Core/Entities/Channels/IMessageChannel.cs
  5. +7
    -0
      src/Discord.Net.Core/Entities/Channels/ITextChannel.cs
  6. +80
    -6
      src/Discord.Net.Rest/Entities/Channels/IRestMessageChannel.cs
  7. +78
    -10
      src/Discord.Net.WebSocket/Entities/Channels/SocketDMChannel.cs
  8. +77
    -6
      src/Discord.Net.WebSocket/Entities/Channels/SocketTextChannel.cs

+ 45
- 1
src/Discord.Net.Commands/Results/ExecuteResult.cs View File

@@ -3,6 +3,9 @@ using System.Diagnostics;

namespace Discord.Commands
{
/// <summary>
/// Contains information of the command's overall execution result.
/// </summary>
[DebuggerDisplay(@"{DebuggerDisplay,nq}")]
public struct ExecuteResult : IResult
{
@@ -26,15 +29,56 @@ namespace Discord.Commands
ErrorReason = errorReason;
}

/// <summary>
/// Initializes a new <see cref="ExecuteResult" /> with no error, indicating a successful execution.
/// </summary>
/// <returns>
/// A <see cref="ExecuteResult" /> that does not contain any errors.
/// </returns>
public static ExecuteResult FromSuccess()
=> new ExecuteResult(null, null, null);
/// <summary>
/// Initializes a new <see cref="ExecuteResult" /> with a specified <see cref="CommandError" /> and its
/// reason, indicating an unsuccessful execution.
/// </summary>
/// <param name="error">The type of error.</param>
/// <param name="reason">The reason behind the error.</param>
/// <returns>
/// A <see cref="ExecuteResult" /> that contains a <see cref="CommandError" /> and reason.
/// </returns>
public static ExecuteResult FromError(CommandError error, string reason)
=> new ExecuteResult(null, error, reason);
/// <summary>
/// Initializes a new <see cref="ExecuteResult" /> with a specified exception, indicating an unsuccessful
/// execution.
/// </summary>
/// <param name="ex">The exception that caused the command execution to fail.</param>
/// <returns>
/// A <see cref="ExecuteResult" /> that contains the exception that caused the unsuccessful execution, along
/// with a <see cref="CommandError" /> of type <c>Exception</c> as well as the exception message as the
/// reason.
/// </returns>
public static ExecuteResult FromError(Exception ex)
=> new ExecuteResult(ex, CommandError.Exception, ex.Message);
/// <summary>
/// Initializes a new <see cref="ExecuteResult" /> with a specified result; this may or may not be an
/// successful execution depending on the <see cref="Discord.Commands.IResult.Error" /> and
/// <see cref="Discord.Commands.IResult.ErrorReason" /> specified.
/// </summary>
/// <param name="result">The result to inherit from.</param>
/// <returns>
/// A <see cref="ExecuteResult"/> that inherits the <see cref="IResult"/> error type and reason.
/// </returns>
public static ExecuteResult FromError(IResult result)
=> new ExecuteResult(null, result.Error, result.ErrorReason);

/// <summary>
/// Gets a string that indicates the execution result.
/// </summary>
/// <returns>
/// <c>Success</c> if <see cref="IsSuccess"/> is <c>true</c>; otherwise "<see cref="Error"/>:
/// <see cref="ErrorReason"/>".
/// </returns>
public override string ToString() => IsSuccess ? "Success" : $"{Error}: {ErrorReason}";
private string DebuggerDisplay => IsSuccess ? "Success" : $"{Error}: {ErrorReason}";
}


+ 22
- 4
src/Discord.Net.Commands/Results/IResult.cs View File

@@ -1,13 +1,31 @@
namespace Discord.Commands
{
/// <summary> Represents information of the command execution result. </summary>
/// <summary>
/// Contains information of the result related to a command.
/// </summary>
public interface IResult
{
/// <summary> Describes the error type that may have occurred during the operation. </summary>
/// <summary>
/// Describes the error type that may have occurred during the operation.
/// </summary>
/// <returns>
/// A <see cref="CommandError" /> indicating the type of error that may have occurred during the operation;
/// <c>null</c> if the operation was successful.
/// </returns>
CommandError? Error { get; }
/// <summary> Describes the reason for the error. </summary>
/// <summary>
/// Describes the reason for the error.
/// </summary>
/// <returns>
/// A string containing the error reason.
/// </returns>
string ErrorReason { get; }
/// <summary> Indicates whether the operation was successful or not. </summary>
/// <summary>
/// Indicates whether the operation was successful or not.
/// </summary>
/// <returns>
/// <c>true</c> if the result is positive; otherwise <c>false</c>.
/// </returns>
bool IsSuccess { get; }
}
}

+ 3
- 0
src/Discord.Net.Commands/Results/ParseResult.cs View File

@@ -4,6 +4,9 @@ using System.Diagnostics;

namespace Discord.Commands
{
/// <summary>
/// Contains information for the parsing result from the command service's parser.
/// </summary>
[DebuggerDisplay(@"{DebuggerDisplay,nq}")]
public struct ParseResult : IResult
{


+ 89
- 8
src/Discord.Net.Core/Entities/Channels/IMessageChannel.cs View File

@@ -81,32 +81,105 @@ namespace Discord
/// <summary>
/// Gets the last N messages from this message channel.
/// </summary>
/// <remarks>
/// <note type="important">
/// The returned collection is an asynchronous enumerable object; one must call
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> to access the individual messages as a
/// collection.
/// </note>
/// <note type="warning">
/// Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual
/// rate limit, causing your bot to freeze!
/// </note>
/// This method will attempt to fetch the number of messages specified under <paramref name="limit"/>. The
/// library will attempt to split up the requests according to your <paramref name="limit"/> and
/// <see cref="DiscordConfig.MaxMessagesPerBatch"/>. In other words, should the user request 500 messages,
/// and the <see cref="Discord.DiscordConfig.MaxMessagesPerBatch"/> constant is <c>100</c>, the request will
/// be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need
/// of flattening.
/// </remarks>
/// <example>
/// The following example downloads 300 messages and gets messages that belong to the user
/// <c>53905483156684800</c>.
/// <code lang="cs">
/// var messages = await messageChannel.GetMessagesAsync(300).FlattenAsync();
/// var userMessages = messages.Where(x =&gt; x.Author.Id == 53905483156684800);
/// </code>
/// </example>
/// <param name="limit">The numbers of message to be gotten from.</param>
/// <param name="mode">The <see cref="CacheMode"/> that determines whether the object should be fetched from cache.</param>
/// <param name="mode">The <see cref="CacheMode" /> that determines whether the object should be fetched from
/// cache.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <returns>
/// Paged collection of messages. Flattening the paginated response into a collection of messages with
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> is required if you wish to access the messages.
/// Paged collection of messages.
/// </returns>
IAsyncEnumerable<IReadOnlyCollection<IMessage>> GetMessagesAsync(int limit = DiscordConfig.MaxMessagesPerBatch,
CacheMode mode = CacheMode.AllowDownload, RequestOptions options = null);
/// <summary>
/// Gets a collection of messages in this channel.
/// </summary>
/// <remarks>
/// <note type="important">
/// The returned collection is an asynchronous enumerable object; one must call
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> to access the individual messages as a
/// collection.
/// </note>
/// <note type="warning">
/// Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual
/// rate limit, causing your bot to freeze!
/// </note>
/// This method will attempt to fetch the number of messages specified under <paramref name="limit"/> around
/// the message <paramref name="fromMessageId"/> depending on the <paramref name="dir"/>. The library will
/// attempt to split up the requests according to your <paramref name="limit"/> and
/// <see cref="DiscordConfig.MaxMessagesPerBatch"/>. In other words, should the user request 500 messages,
/// and the <see cref="Discord.DiscordConfig.MaxMessagesPerBatch"/> constant is <c>100</c>, the request will
/// be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need
/// of flattening.
/// </remarks>
/// <example>
/// The following example gets 5 message prior to the message identifier <c>442012544660537354</c>.
/// <code lang="cs">
/// var messages = await channel.GetMessagesAsync(442012544660537354, Direction.Before, 5).FlattenAsync();
/// </code>
/// </example>
/// <param name="fromMessageId">The ID of the starting message to get the messages from.</param>
/// <param name="dir">The direction of the messages to be gotten from.</param>
/// <param name="limit">The numbers of message to be gotten from.</param>
/// <param name="mode">The <see cref="CacheMode"/> that determines whether the object should be fetched from cache.</param>
/// <param name="mode">The <see cref="CacheMode"/> that determines whether the object should be fetched from
/// cache.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <returns>
/// Paged collection of messages. Flattening the paginated response into a collection of messages with
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> is required if you wish to access the messages.
/// Paged collection of messages.
/// </returns>
IAsyncEnumerable<IReadOnlyCollection<IMessage>> GetMessagesAsync(ulong fromMessageId, Direction dir, int limit = DiscordConfig.MaxMessagesPerBatch,
CacheMode mode = CacheMode.AllowDownload, RequestOptions options = null);
/// <summary>
/// Gets a collection of messages in this channel.
/// </summary>
/// <remarks>
/// <note type="important">
/// The returned collection is an asynchronous enumerable object; one must call
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> to access the individual messages as a
/// collection.
/// </note>
/// <note type="warning">
/// Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual
/// rate limit, causing your bot to freeze!
/// </note>
/// This method will attempt to fetch the number of messages specified under <paramref name="limit"/> around
/// the message <paramref name="fromMessage"/> depending on the <paramref name="dir"/>. The library will
/// attempt to split up the requests according to your <paramref name="limit"/> and
/// <see cref="DiscordConfig.MaxMessagesPerBatch"/>. In other words, should the user request 500 messages,
/// and the <see cref="Discord.DiscordConfig.MaxMessagesPerBatch"/> constant is <c>100</c>, the request will
/// be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need
/// of flattening.
/// </remarks>
/// <example>
/// The following example gets 5 message prior to a specific message, <c>oldMessage</c>.
/// <code lang="cs">
/// var messages = await channel.GetMessagesAsync(oldMessage, Direction.Before, 5).FlattenAsync();
/// </code>
/// </example>
/// <param name="fromMessage">The starting message to get the messages from.</param>
/// <param name="dir">The direction of the messages to be gotten from.</param>
/// <param name="limit">The numbers of message to be gotten from.</param>
@@ -114,8 +187,7 @@ namespace Discord
/// cache.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <returns>
/// Paged collection of messages. Flattening the paginated response into a collection of messages with
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> is required if you wish to access the messages.
/// Paged collection of messages.
/// </returns>
IAsyncEnumerable<IReadOnlyCollection<IMessage>> GetMessagesAsync(IMessage fromMessage, Direction dir, int limit = DiscordConfig.MaxMessagesPerBatch,
CacheMode mode = CacheMode.AllowDownload, RequestOptions options = null);
@@ -158,6 +230,15 @@ namespace Discord
/// Continuously broadcasts the "user is typing" message to all users in this channel until the returned
/// object is disposed.
/// </summary>
/// <example>
/// The following example keeps the client in the typing state until <c>LongRunningAsync</c> has finished.
/// <code lang="cs">
/// using (messageChannel.EnterTypingState())
/// {
/// await LongRunningAsync();
/// }
/// </code>
/// </example>
/// <param name="options">The options to be used when sending the request.</param>
/// <returns>
/// A disposable object that, upon its disposal, will stop the client from broadcasting its typing state in


+ 7
- 0
src/Discord.Net.Core/Entities/Channels/ITextChannel.cs View File

@@ -29,6 +29,13 @@ namespace Discord
/// <summary>
/// Bulk-deletes multiple messages.
/// </summary>
/// <example>
/// The following example gets 250 messages from the channel and deletes them.
/// <code lang="cs">
/// var messages = await textChannel.GetMessagesAsync(250).FlattenAsync();
/// await textChannel.DeleteMessagesAsync(messages);
/// </code>
/// </example>
/// <remarks>
/// This method attempts to remove the messages specified in bulk.
/// <note type="important">


+ 80
- 6
src/Discord.Net.Rest/Entities/Channels/IRestMessageChannel.cs View File

@@ -78,35 +78,109 @@ namespace Discord.Rest
/// <summary>
/// Gets the last N messages from this message channel.
/// </summary>
/// <remarks>
/// <note type="important">
/// The returned collection is an asynchronous enumerable object; one must call
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> to access the individual messages as a
/// collection.
/// </note>
/// <note type="warning">
/// Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual
/// rate limit, causing your bot to freeze!
/// </note>
/// This method will attempt to fetch the number of messages specified under <paramref name="limit"/>. The
/// library will attempt to split up the requests according to your <paramref name="limit"/> and
/// <see cref="DiscordConfig.MaxMessagesPerBatch"/>. In other words, should the user request 500 messages,
/// and the <see cref="Discord.DiscordConfig.MaxMessagesPerBatch"/> constant is <c>100</c>, the request will
/// be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need
/// of flattening.
/// </remarks>
/// <example>
/// The following example downloads 300 messages and gets messages that belong to the user
/// <c>53905483156684800</c>.
/// <code lang="cs">
/// var messages = await messageChannel.GetMessagesAsync(300).FlattenAsync();
/// var userMessages = messages.Where(x =&gt; x.Author.Id == 53905483156684800);
/// </code>
/// </example>
/// <param name="limit">The numbers of message to be gotten from.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <returns>
/// Paged collection of messages. Flattening the paginated response into a collection of messages with
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> is required if you wish to access the messages.
/// Paged collection of messages.
/// </returns>
IAsyncEnumerable<IReadOnlyCollection<RestMessage>> GetMessagesAsync(int limit = DiscordConfig.MaxMessagesPerBatch, RequestOptions options = null);
/// <summary>
/// Gets a collection of messages in this channel.
/// </summary>
/// <remarks>
/// <note type="important">
/// The returned collection is an asynchronous enumerable object; one must call
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> to access the individual messages as a
/// collection.
/// </note>
/// <note type="warning">
/// Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual
/// rate limit, causing your bot to freeze!
/// </note>
/// This method will attempt to fetch the number of messages specified under <paramref name="limit"/> around
/// the message <paramref name="fromMessageId"/> depending on the <paramref name="dir"/>. The library will
/// attempt to split up the requests according to your <paramref name="limit"/> and
/// <see cref="DiscordConfig.MaxMessagesPerBatch"/>. In other words, should the user request 500 messages,
/// and the <see cref="Discord.DiscordConfig.MaxMessagesPerBatch"/> constant is <c>100</c>, the request will
/// be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need
/// of flattening.
/// </remarks>
/// <example>
/// The following example gets 5 message prior to the message identifier <c>442012544660537354</c>.
/// <code lang="cs">
/// var messages = await channel.GetMessagesAsync(442012544660537354, Direction.Before, 5).FlattenAsync();
/// </code>
/// </example>
/// <param name="fromMessageId">The ID of the starting message to get the messages from.</param>
/// <param name="dir">The direction of the messages to be gotten from.</param>
/// <param name="limit">The numbers of message to be gotten from.</param>
/// <param name="mode">The <see cref="CacheMode"/> that determines whether the object should be fetched from
/// cache.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <returns>
/// Paged collection of messages. Flattening the paginated response into a collection of messages with
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> is required if you wish to access the messages.
/// Paged collection of messages.
/// </returns>
IAsyncEnumerable<IReadOnlyCollection<RestMessage>> GetMessagesAsync(ulong fromMessageId, Direction dir, int limit = DiscordConfig.MaxMessagesPerBatch, RequestOptions options = null);
/// <summary>
/// Gets a collection of messages in this channel.
/// </summary>
/// <remarks>
/// <note type="important">
/// The returned collection is an asynchronous enumerable object; one must call
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> to access the individual messages as a
/// collection.
/// </note>
/// <note type="warning">
/// Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual
/// rate limit, causing your bot to freeze!
/// </note>
/// This method will attempt to fetch the number of messages specified under <paramref name="limit"/> around
/// the message <paramref name="fromMessage"/> depending on the <paramref name="dir"/>. The library will
/// attempt to split up the requests according to your <paramref name="limit"/> and
/// <see cref="DiscordConfig.MaxMessagesPerBatch"/>. In other words, should the user request 500 messages,
/// and the <see cref="Discord.DiscordConfig.MaxMessagesPerBatch"/> constant is <c>100</c>, the request will
/// be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need
/// of flattening.
/// </remarks>
/// <example>
/// The following example gets 5 message prior to a specific message, <c>oldMessage</c>.
/// <code lang="cs">
/// var messages = await channel.GetMessagesAsync(oldMessage, Direction.Before, 5).FlattenAsync();
/// </code>
/// </example>
/// <param name="fromMessage">The starting message to get the messages from.</param>
/// <param name="dir">The direction of the messages to be gotten from.</param>
/// <param name="limit">The numbers of message to be gotten from.</param>
/// <param name="mode">The <see cref="CacheMode"/> that determines whether the object should be fetched from
/// cache.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <returns>
/// Paged collection of messages. Flattening the paginated response into a collection of messages with
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> is required if you wish to access the messages.
/// Paged collection of messages.
/// </returns>
IAsyncEnumerable<IReadOnlyCollection<RestMessage>> GetMessagesAsync(IMessage fromMessage, Direction dir, int limit = DiscordConfig.MaxMessagesPerBatch, RequestOptions options = null);
/// <summary>


+ 78
- 10
src/Discord.Net.WebSocket/Entities/Channels/SocketDMChannel.cs View File

@@ -75,41 +75,109 @@ namespace Discord.WebSocket
}

/// <summary>
/// Gets the last N messages from this channel.
/// Gets the last N messages from this message channel.
/// </summary>
/// <param name="limit">The number of messages to get.</param>
/// <remarks>
/// <note type="important">
/// The returned collection is an asynchronous enumerable object; one must call
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> to access the individual messages as a
/// collection.
/// </note>
/// <note type="warning">
/// Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual
/// rate limit, causing your bot to freeze!
/// </note>
/// This method will attempt to fetch the number of messages specified under <paramref name="limit"/>. The
/// library will attempt to split up the requests according to your <paramref name="limit"/> and
/// <see cref="DiscordConfig.MaxMessagesPerBatch"/>. In other words, should the user request 500 messages,
/// and the <see cref="Discord.DiscordConfig.MaxMessagesPerBatch"/> constant is <c>100</c>, the request will
/// be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need
/// of flattening.
/// </remarks>
/// <example>
/// The following example downloads 300 messages and gets messages that belong to the user
/// <c>53905483156684800</c>.
/// <code lang="cs">
/// var messages = await messageChannel.GetMessagesAsync(300).FlattenAsync();
/// var userMessages = messages.Where(x =&gt; x.Author.Id == 53905483156684800);
/// </code>
/// </example>
/// <param name="limit">The numbers of message to be gotten from.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <returns>
/// Paged collection of messages. Flattening the paginated response into a collection of messages with
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> is required if you wish to access the messages.
/// Paged collection of messages.
/// </returns>
public IAsyncEnumerable<IReadOnlyCollection<IMessage>> GetMessagesAsync(int limit = DiscordConfig.MaxMessagesPerBatch, RequestOptions options = null)
=> SocketChannelHelper.GetMessagesAsync(this, Discord, _messages, null, Direction.Before, limit, CacheMode.AllowDownload, options);

/// <summary>
/// Gets a collection of messages in this channel.
/// </summary>
/// <remarks>
/// <note type="important">
/// The returned collection is an asynchronous enumerable object; one must call
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> to access the individual messages as a
/// collection.
/// </note>
/// <note type="warning">
/// Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual
/// rate limit, causing your bot to freeze!
/// </note>
/// This method will attempt to fetch the number of messages specified under <paramref name="limit"/> around
/// the message <paramref name="fromMessageId"/> depending on the <paramref name="dir"/>. The library will
/// attempt to split up the requests according to your <paramref name="limit"/> and
/// <see cref="DiscordConfig.MaxMessagesPerBatch"/>. In other words, should the user request 500 messages,
/// and the <see cref="Discord.DiscordConfig.MaxMessagesPerBatch"/> constant is <c>100</c>, the request will
/// be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need
/// of flattening.
/// </remarks>
/// <example>
/// The following example gets 5 message prior to the message identifier <c>442012544660537354</c>.
/// <code lang="cs">
/// var messages = await channel.GetMessagesAsync(442012544660537354, Direction.Before, 5).FlattenAsync();
/// </code>
/// </example>
/// <param name="fromMessageId">The ID of the starting message to get the messages from.</param>
/// <param name="dir">The direction of the messages to be gotten from.</param>
/// <param name="limit">The numbers of message to be gotten from.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <returns>
/// Paged collection of messages. Flattening the paginated response into a collection of messages with
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> is required if you wish to access the messages.
/// Paged collection of messages.
/// </returns>
public IAsyncEnumerable<IReadOnlyCollection<IMessage>> GetMessagesAsync(ulong fromMessageId, Direction dir, int limit = DiscordConfig.MaxMessagesPerBatch, RequestOptions options = null)
=> SocketChannelHelper.GetMessagesAsync(this, Discord, _messages, fromMessageId, dir, limit, CacheMode.AllowDownload, options);

/// <summary>
/// Gets a collection of messages in this channel.
/// </summary>
/// <remarks>
/// <note type="important">
/// The returned collection is an asynchronous enumerable object; one must call
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> to access the individual messages as a
/// collection.
/// </note>
/// <note type="warning">
/// Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual
/// rate limit, causing your bot to freeze!
/// </note>
/// This method will attempt to fetch the number of messages specified under <paramref name="limit"/> around
/// the message <paramref name="fromMessage"/> depending on the <paramref name="dir"/>. The library will
/// attempt to split up the requests according to your <paramref name="limit"/> and
/// <see cref="DiscordConfig.MaxMessagesPerBatch"/>. In other words, should the user request 500 messages,
/// and the <see cref="Discord.DiscordConfig.MaxMessagesPerBatch"/> constant is <c>100</c>, the request will
/// be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need
/// of flattening.
/// </remarks>
/// <example>
/// The following example gets 5 message prior to a specific message, <c>oldMessage</c>.
/// <code lang="cs">
/// var messages = await channel.GetMessagesAsync(oldMessage, Direction.Before, 5).FlattenAsync();
/// </code>
/// </example>
/// <param name="fromMessage">The starting message to get the messages from.</param>
/// <param name="dir">The direction of the messages to be gotten from.</param>
/// <param name="limit">The numbers of message to be gotten from.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <returns>
/// Paged collection of messages. Flattening the paginated response into a collection of messages with
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> is required if you wish to access the messages.
/// Paged collection of messages.
/// </returns>
public IAsyncEnumerable<IReadOnlyCollection<IMessage>> GetMessagesAsync(IMessage fromMessage, Direction dir, int limit = DiscordConfig.MaxMessagesPerBatch, RequestOptions options = null)
=> SocketChannelHelper.GetMessagesAsync(this, Discord, _messages, fromMessage.Id, dir, limit, CacheMode.AllowDownload, options);


+ 77
- 6
src/Discord.Net.WebSocket/Entities/Channels/SocketTextChannel.cs View File

@@ -92,37 +92,108 @@ namespace Discord.WebSocket
/// <summary>
/// Gets the last N messages from this message channel.
/// </summary>
/// <remarks>
/// <note type="important">
/// The returned collection is an asynchronous enumerable object; one must call
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> to access the individual messages as a
/// collection.
/// </note>
/// <note type="warning">
/// Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual
/// rate limit, causing your bot to freeze!
/// </note>
/// This method will attempt to fetch the number of messages specified under <paramref name="limit"/>. The
/// library will attempt to split up the requests according to your <paramref name="limit"/> and
/// <see cref="DiscordConfig.MaxMessagesPerBatch"/>. In other words, should the user request 500 messages,
/// and the <see cref="Discord.DiscordConfig.MaxMessagesPerBatch"/> constant is <c>100</c>, the request will
/// be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need
/// of flattening.
/// </remarks>
/// <example>
/// The following example downloads 300 messages and gets messages that belong to the user
/// <c>53905483156684800</c>.
/// <code lang="cs">
/// var messages = await messageChannel.GetMessagesAsync(300).FlattenAsync();
/// var userMessages = messages.Where(x =&gt; x.Author.Id == 53905483156684800);
/// </code>
/// </example>
/// <param name="limit">The numbers of message to be gotten from.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <returns>
/// Paged collection of messages. Flattening the paginated response into a collection of messages with
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> is required if you wish to access the messages.
/// Paged collection of messages.
/// </returns>

public IAsyncEnumerable<IReadOnlyCollection<IMessage>> GetMessagesAsync(int limit = DiscordConfig.MaxMessagesPerBatch, RequestOptions options = null)
=> SocketChannelHelper.GetMessagesAsync(this, Discord, _messages, null, Direction.Before, limit, CacheMode.AllowDownload, options);
/// <summary>
/// Gets a collection of messages in this channel.
/// </summary>
/// <remarks>
/// <note type="important">
/// The returned collection is an asynchronous enumerable object; one must call
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> to access the individual messages as a
/// collection.
/// </note>
/// <note type="warning">
/// Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual
/// rate limit, causing your bot to freeze!
/// </note>
/// This method will attempt to fetch the number of messages specified under <paramref name="limit"/> around
/// the message <paramref name="fromMessageId"/> depending on the <paramref name="dir"/>. The library will
/// attempt to split up the requests according to your <paramref name="limit"/> and
/// <see cref="DiscordConfig.MaxMessagesPerBatch"/>. In other words, should the user request 500 messages,
/// and the <see cref="Discord.DiscordConfig.MaxMessagesPerBatch"/> constant is <c>100</c>, the request will
/// be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need
/// of flattening.
/// </remarks>
/// <example>
/// The following example gets 5 message prior to the message identifier <c>442012544660537354</c>.
/// <code lang="cs">
/// var messages = await channel.GetMessagesAsync(442012544660537354, Direction.Before, 5).FlattenAsync();
/// </code>
/// </example>
/// <param name="fromMessageId">The ID of the starting message to get the messages from.</param>
/// <param name="dir">The direction of the messages to be gotten from.</param>
/// <param name="limit">The numbers of message to be gotten from.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <returns>
/// Paged collection of messages. Flattening the paginated response into a collection of messages with
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> is required if you wish to access the messages.
/// Paged collection of messages.
/// </returns>
public IAsyncEnumerable<IReadOnlyCollection<IMessage>> GetMessagesAsync(ulong fromMessageId, Direction dir, int limit = DiscordConfig.MaxMessagesPerBatch, RequestOptions options = null)
=> SocketChannelHelper.GetMessagesAsync(this, Discord, _messages, fromMessageId, dir, limit, CacheMode.AllowDownload, options);
/// <summary>
/// Gets a collection of messages in this channel.
/// </summary>
/// <remarks>
/// <note type="important">
/// The returned collection is an asynchronous enumerable object; one must call
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> to access the individual messages as a
/// collection.
/// </note>
/// <note type="warning">
/// Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual
/// rate limit, causing your bot to freeze!
/// </note>
/// This method will attempt to fetch the number of messages specified under <paramref name="limit"/> around
/// the message <paramref name="fromMessage"/> depending on the <paramref name="dir"/>. The library will
/// attempt to split up the requests according to your <paramref name="limit"/> and
/// <see cref="DiscordConfig.MaxMessagesPerBatch"/>. In other words, should the user request 500 messages,
/// and the <see cref="Discord.DiscordConfig.MaxMessagesPerBatch"/> constant is <c>100</c>, the request will
/// be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need
/// of flattening.
/// </remarks>
/// <example>
/// The following example gets 5 message prior to a specific message, <c>oldMessage</c>.
/// <code lang="cs">
/// var messages = await channel.GetMessagesAsync(oldMessage, Direction.Before, 5).FlattenAsync();
/// </code>
/// </example>
/// <param name="fromMessage">The starting message to get the messages from.</param>
/// <param name="dir">The direction of the messages to be gotten from.</param>
/// <param name="limit">The numbers of message to be gotten from.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <returns>
/// Paged collection of messages. Flattening the paginated response into a collection of messages with
/// <see cref="AsyncEnumerableExtensions.FlattenAsync{T}"/> is required if you wish to access the messages.
/// Paged collection of messages.
/// </returns>
public IAsyncEnumerable<IReadOnlyCollection<IMessage>> GetMessagesAsync(IMessage fromMessage, Direction dir, int limit = DiscordConfig.MaxMessagesPerBatch, RequestOptions options = null)
=> SocketChannelHelper.GetMessagesAsync(this, Discord, _messages, fromMessage.Id, dir, limit, CacheMode.AllowDownload, options);


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