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Simplified PR, renamed Cached to Cacheable.

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This commit is contained in:
Sindre G. Langhus
2016-12-16 23:50:27 +01:00
parent 8435186d79
commit 705d71875c
4 changed files with 67 additions and 60 deletions
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30
src/Discord.Net.Core/Utils/Cacheable.cs Normal file
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@@ -0,0 +1,30 @@
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
namespace Discord
{
public struct Cacheable<TEntity, TId>
where TEntity : IEntity<TId>
where TId : IEquatable<TId>
{
public bool HasValue => !EqualityComparer<TEntity>.Default.Equals(Value, default(TEntity));
public ulong Id { get; }
public TEntity Value { get; }
private Func<Task<TEntity>> DownloadFunc { get; }
internal Cacheable(TEntity value, ulong id, Func<Task<TEntity>> downloadFunc)
{
Value = value;
Id = id;
DownloadFunc = downloadFunc;
}
public async Task<TEntity> DownloadAsync()
{
return await DownloadFunc();
}
public async Task<TEntity> GetOrDownloadAsync() => HasValue ? Value : await DownloadAsync();
}
}

33
src/Discord.Net.Core/Utils/Cached.cs
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@@ -1,33 +0,0 @@
using Discord.WebSocket;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
namespace Discord
{
public struct Cached<T> where T : IMessage
{
public bool IsCached => !EqualityComparer<T>.Default.Equals(Value, default(T));
public bool IsDownloadable { get; }
public ulong Id { get; }
public T Value { get; }
public ISocketMessageChannel Channel { get; }
public Cached(ulong id, T value, ISocketMessageChannel channel, bool isDownloadable = true)
{
Id = id;
Value = value;
Channel = channel;
IsDownloadable = isDownloadable;
}
public async Task<T> DownloadAsync()
{
if (IsDownloadable)
return (T) await Channel.GetMessageAsync(Id);
throw new InvalidOperationException("This message cannot be downloaded.");
}
public async Task<T> GetOrDownloadAsync() => IsCached ? Value : await DownloadAsync();
}
}

20
src/Discord.Net.WebSocket/DiscordSocketClient.Events.cs
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@@ -59,36 +59,36 @@ namespace Discord.WebSocket
remove { _messageReceivedEvent.Remove(value); }
}
private readonly AsyncEvent<Func<SocketMessage, Task>> _messageReceivedEvent = new AsyncEvent<Func<SocketMessage, Task>>();
public event Func<Cached<SocketMessage>, Task> MessageDeleted
public event Func<Cacheable<SocketMessage, ulong>, ISocketMessageChannel, Task> MessageDeleted
{
add { _messageDeletedEvent.Add(value); }
remove { _messageDeletedEvent.Remove(value); }
}
private readonly AsyncEvent<Func<Cached<SocketMessage>, Task>> _messageDeletedEvent = new AsyncEvent<Func<Cached<SocketMessage>, Task>>();
public event Func<Cached<SocketMessage>, SocketMessage, Task> MessageUpdated
private readonly AsyncEvent<Func<Cacheable<SocketMessage, ulong>, ISocketMessageChannel, Task>> _messageDeletedEvent = new AsyncEvent<Func<Cacheable<SocketMessage, ulong>, ISocketMessageChannel, Task>>();
public event Func<Optional<SocketMessage>, SocketMessage, ISocketMessageChannel, Task> MessageUpdated
{
add { _messageUpdatedEvent.Add(value); }
remove { _messageUpdatedEvent.Remove(value); }
}
private readonly AsyncEvent<Func<Cached<SocketMessage>, SocketMessage, Task>> _messageUpdatedEvent = new AsyncEvent<Func<Cached<SocketMessage>, SocketMessage, Task>>();
public event Func<Cached<SocketUserMessage>, SocketReaction, Task> ReactionAdded
private readonly AsyncEvent<Func<Optional<SocketMessage>, SocketMessage, ISocketMessageChannel, Task>> _messageUpdatedEvent = new AsyncEvent<Func<Optional<SocketMessage>, SocketMessage, ISocketMessageChannel, Task>>();
public event Func<Cacheable<SocketUserMessage, ulong>, ISocketMessageChannel, SocketReaction, Task> ReactionAdded
{
add { _reactionAddedEvent.Add(value); }
remove { _reactionAddedEvent.Remove(value); }
}
private readonly AsyncEvent<Func<Cached<SocketUserMessage>, SocketReaction, Task>> _reactionAddedEvent = new AsyncEvent<Func<Cached<SocketUserMessage>, SocketReaction, Task>>();
public event Func<Cached<SocketUserMessage>, SocketReaction, Task> ReactionRemoved
private readonly AsyncEvent<Func<Cacheable<SocketUserMessage, ulong>, ISocketMessageChannel, SocketReaction, Task>> _reactionAddedEvent = new AsyncEvent<Func<Cacheable<SocketUserMessage, ulong>, ISocketMessageChannel, SocketReaction, Task>>();
public event Func<Cacheable<SocketUserMessage, ulong>, ISocketMessageChannel, SocketReaction, Task> ReactionRemoved
{
add { _reactionRemovedEvent.Add(value); }
remove { _reactionRemovedEvent.Remove(value); }
}
private readonly AsyncEvent<Func<Cached<SocketUserMessage>, SocketReaction, Task>> _reactionRemovedEvent = new AsyncEvent<Func<Cached<SocketUserMessage>, SocketReaction, Task>>();
public event Func<Cached<SocketUserMessage>, Task> ReactionsCleared
private readonly AsyncEvent<Func<Cacheable<SocketUserMessage, ulong>, ISocketMessageChannel, SocketReaction, Task>> _reactionRemovedEvent = new AsyncEvent<Func<Cacheable<SocketUserMessage, ulong>, ISocketMessageChannel, SocketReaction, Task>>();
public event Func<Cacheable<SocketUserMessage, ulong>, ISocketMessageChannel, Task> ReactionsCleared
{
add { _reactionsClearedEvent.Add(value); }
remove { _reactionsClearedEvent.Remove(value); }
}
private readonly AsyncEvent<Func<Cached<SocketUserMessage>, Task>> _reactionsClearedEvent = new AsyncEvent<Func<Cached<SocketUserMessage>, Task>>();
private readonly AsyncEvent<Func<Cacheable<SocketUserMessage, ulong>, ISocketMessageChannel, Task>> _reactionsClearedEvent = new AsyncEvent<Func<Cacheable<SocketUserMessage, ulong>, ISocketMessageChannel, Task>>();
//Roles
public event Func<SocketRole, Task> RoleCreated

44
src/Discord.Net.WebSocket/DiscordSocketClient.cs
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@@ -1265,7 +1265,7 @@ namespace Discord.WebSocket
{
var guild = (channel as SocketGuildChannel)?.Guild;
if (guild != null && !guild.IsSynced)
{
{
await _gatewayLogger.DebugAsync("Ignored MESSAGE_UPDATE, guild is not synced yet.").ConfigureAwait(false);
return;
}
@@ -1281,13 +1281,20 @@ namespace Discord.WebSocket
else if (data.Author.IsSpecified)
{
//Edited message isnt in cache, create a detached one
var author = (guild != null ? guild.GetUser(data.Author.Value.Id) : (channel as SocketChannel).GetUser(data.Author.Value.Id)) ??
SocketSimpleUser.Create(this, State, data.Author.Value);
SocketUser author;
if (guild != null)
author = guild.GetUser(data.Author.Value.Id);
else
author = (channel as SocketChannel).GetUser(data.Author.Value.Id);
if (author == null)
author = SocketSimpleUser.Create(this, State, data.Author.Value);
after = SocketMessage.Create(this, State, author, channel, data);
}
var cached = new Cached<SocketMessage>(data.Id, before, channel);
await _messageUpdatedEvent.InvokeAsync(cached, after).ConfigureAwait(false);
if (before != null)
await _messageUpdatedEvent.InvokeAsync(before, after, channel).ConfigureAwait(false);
else
await _messageUpdatedEvent.InvokeAsync(Optional.Create<SocketMessage>(), after, channel).ConfigureAwait(false);
}
else
{
@@ -1299,25 +1306,26 @@ namespace Discord.WebSocket
case "MESSAGE_DELETE":
{
await _gatewayLogger.DebugAsync("Received Dispatch (MESSAGE_DELETE)").ConfigureAwait(false);
var data = (payload as JToken).ToObject<API.Message>(_serializer);
var channel = State.GetChannel(data.ChannelId) as ISocketMessageChannel;
if (channel != null)
{
if (!((channel as SocketGuildChannel)?.Guild.IsSynced ?? true))
{
{
await _gatewayLogger.DebugAsync("Ignored MESSAGE_DELETE, guild is not synced yet.").ConfigureAwait(false);
return;
}
var msg = SocketChannelHelper.RemoveMessage(channel, this, data.Id);
var cached = new Cached<SocketMessage>(data.Id, msg, channel, isDownloadable: false);
var cacheable = new Cacheable<SocketMessage, ulong>(msg, data.Id, async () => await channel.GetMessageAsync(data.Id) as SocketUserMessage);
await _messageDeletedEvent.InvokeAsync(cached).ConfigureAwait(false);
await _messageDeletedEvent.InvokeAsync(cacheable, channel).ConfigureAwait(false);
}
else
{
await _gatewayLogger.WarningAsync("MESSAGE_DELETE referenced an unknown channel.").ConfigureAwait(false);
return;
}
}
break;
@@ -1332,11 +1340,11 @@ namespace Discord.WebSocket
SocketUserMessage cachedMsg = channel.GetCachedMessage(data.MessageId) as SocketUserMessage;
var user = await channel.GetUserAsync(data.UserId, CacheMode.CacheOnly);
SocketReaction reaction = SocketReaction.Create(data, channel, cachedMsg, Optional.Create(user));
var cached = new Cached<SocketUserMessage>(data.MessageId, cachedMsg, channel);
var cacheable = new Cacheable<SocketUserMessage, ulong>(cachedMsg, data.MessageId, async () => await channel.GetMessageAsync(data.MessageId) as SocketUserMessage);
cachedMsg?.AddReaction(reaction);
await _reactionAddedEvent.InvokeAsync(cached, reaction).ConfigureAwait(false);
await _reactionAddedEvent.InvokeAsync(cacheable, channel, reaction).ConfigureAwait(false);
}
else
{
@@ -1356,15 +1364,16 @@ namespace Discord.WebSocket
SocketUserMessage cachedMsg = channel.GetCachedMessage(data.MessageId) as SocketUserMessage;
var user = await channel.GetUserAsync(data.UserId, CacheMode.CacheOnly);
SocketReaction reaction = SocketReaction.Create(data, channel, cachedMsg, Optional.Create(user));
var cached = new Cached<SocketUserMessage>(data.MessageId, cachedMsg, channel);
var cacheable = new Cacheable<SocketUserMessage, ulong>(cachedMsg, data.MessageId, async () => await channel.GetMessageAsync(data.MessageId) as SocketUserMessage);
cachedMsg?.RemoveReaction(reaction);
await _reactionRemovedEvent.InvokeAsync(cached, reaction).ConfigureAwait(false);
await _reactionRemovedEvent.InvokeAsync(cacheable, channel, reaction).ConfigureAwait(false);
}
else
{
await _gatewayLogger.WarningAsync("MESSAGE_REACTION_REMOVE referenced an unknown channel.").ConfigureAwait(false);
return;
}
break;
}
@@ -1377,11 +1386,11 @@ namespace Discord.WebSocket
if (channel != null)
{
SocketUserMessage cachedMsg = channel.GetCachedMessage(data.MessageId) as SocketUserMessage;
var cached = new Cached<SocketUserMessage>(data.MessageId, cachedMsg, channel);
var cacheable = new Cacheable<SocketUserMessage, ulong>(cachedMsg, data.MessageId, async () => await channel.GetMessageAsync(data.MessageId) as SocketUserMessage);
cachedMsg?.ClearReactions();
await _reactionsClearedEvent.InvokeAsync(cached);
await _reactionsClearedEvent.InvokeAsync(cacheable, channel).ConfigureAwait(false);
}
else
{
@@ -1407,13 +1416,14 @@ namespace Discord.WebSocket
foreach (var id in data.Ids)
{
var msg = SocketChannelHelper.RemoveMessage(channel, this, id);
var cached = new Cached<SocketMessage>(id, msg, channel, false);
await _messageDeletedEvent.InvokeAsync(cached).ConfigureAwait(false);
var cacheable = new Cacheable<SocketMessage, ulong>(msg, id, async () => await channel.GetMessageAsync(id) as SocketMessage);
await _messageDeletedEvent.InvokeAsync(cacheable, channel).ConfigureAwait(false);
}
}
else
{
await _gatewayLogger.WarningAsync("MESSAGE_DELETE_BULK referenced an unknown channel.").ConfigureAwait(false);
return;
}
}
break;