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Fix error when removing reactions on a deleted message

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This commit is contained in:
Ske
2020-01-03 14:02:25 +01:00
parent c89802a21c
commit 8b65754b00
1 changed files with 36 additions and 28 deletions
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64
PluralKit.Bot/ContextUtils.cs
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@@ -1,9 +1,11 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using Discord;
using Discord.Commands;
using Discord.Net;
using Discord.WebSocket;
using PluralKit.Bot.CommandSystem;
@@ -71,38 +73,44 @@ namespace PluralKit.Bot {
return eb.Build();
}
var msg = await ctx.Channel.SendMessageAsync(embed: MakeEmbedForPage(0));
if (pageCount == 1) return; // If we only have one page, don't bother with the reaction/pagination logic, lol
var botEmojis = new[] { new Emoji("\u23EA"), new Emoji("\u2B05"), new Emoji("\u27A1"), new Emoji("\u23E9"), new Emoji(Emojis.Error) };
await msg.AddReactionsAsync(botEmojis);
try
{
var msg = await ctx.Channel.SendMessageAsync(embed: MakeEmbedForPage(0));
if (pageCount == 1) return; // If we only have one page, don't bother with the reaction/pagination logic, lol
var botEmojis = new[] { new Emoji("\u23EA"), new Emoji("\u2B05"), new Emoji("\u27A1"), new Emoji("\u23E9"), new Emoji(Emojis.Error) };
await msg.AddReactionsAsync(botEmojis);
try {
var currentPage = 0;
while (true) {
var reaction = await ctx.AwaitReaction(msg, ctx.Author, timeout: TimeSpan.FromMinutes(5));
try {
var currentPage = 0;
while (true) {
var reaction = await ctx.AwaitReaction(msg, ctx.Author, timeout: TimeSpan.FromMinutes(5));
// Increment/decrement page counter based on which reaction was clicked
if (reaction.Emote.Name == "\u23EA") currentPage = 0; // <<
if (reaction.Emote.Name == "\u2B05") currentPage = (currentPage - 1) % pageCount; // <
if (reaction.Emote.Name == "\u27A1") currentPage = (currentPage + 1) % pageCount; // >
if (reaction.Emote.Name == "\u23E9") currentPage = pageCount - 1; // >>
if (reaction.Emote.Name == Emojis.Error) break; // X
// C#'s % operator is dumb and wrong, so we fix negative numbers
if (currentPage < 0) currentPage += pageCount;
// If we can, remove the user's reaction (so they can press again quickly)
if (await ctx.HasPermission(ChannelPermission.ManageMessages) && reaction.User.IsSpecified) await msg.RemoveReactionAsync(reaction.Emote, reaction.User.Value);
// Edit the embed with the new page
await msg.ModifyAsync((mp) => mp.Embed = MakeEmbedForPage(currentPage));
// Increment/decrement page counter based on which reaction was clicked
if (reaction.Emote.Name == "\u23EA") currentPage = 0; // <<
if (reaction.Emote.Name == "\u2B05") currentPage = (currentPage - 1) % pageCount; // <
if (reaction.Emote.Name == "\u27A1") currentPage = (currentPage + 1) % pageCount; // >
if (reaction.Emote.Name == "\u23E9") currentPage = pageCount - 1; // >>
if (reaction.Emote.Name == Emojis.Error) break; // X
// C#'s % operator is dumb and wrong, so we fix negative numbers
if (currentPage < 0) currentPage += pageCount;
// If we can, remove the user's reaction (so they can press again quickly)
if (await ctx.HasPermission(ChannelPermission.ManageMessages) && reaction.User.IsSpecified) await msg.RemoveReactionAsync(reaction.Emote, reaction.User.Value);
// Edit the embed with the new page
await msg.ModifyAsync((mp) => mp.Embed = MakeEmbedForPage(currentPage));
}
} catch (TimeoutException) {
// "escape hatch", clean up as if we hit X
}
} catch (TimeoutException) {
// "escape hatch", clean up as if we hit X
}
if (await ctx.HasPermission(ChannelPermission.ManageMessages)) await msg.RemoveAllReactionsAsync();
else await msg.RemoveReactionsAsync(ctx.Shard.CurrentUser, botEmojis);
if (await ctx.HasPermission(ChannelPermission.ManageMessages)) await msg.RemoveAllReactionsAsync();
else await msg.RemoveReactionsAsync(ctx.Shard.CurrentUser, botEmojis);
}
// If we get a "NotFound" error, the message has been deleted and thus not our problem
catch (HttpException e) when (e.HttpCode == HttpStatusCode.NotFound) { }
}
public static async Task<T> Choose<T>(this Context ctx, string description, IList<T> items, Func<T, string> display = null)