NadekoBot/NadekoBot.Core/_Extensions/IMessageChannelExtensions.cs

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using Discord;
using Discord.WebSocket;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace NadekoBot.Extensions
{
public static class IMessageChannelExtensions
{
public static Task<IUserMessage> EmbedAsync(this IMessageChannel ch, EmbedBuilder embed, string msg = "")
=> ch.SendMessageAsync(msg, embed: embed.Build());
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public static Task<IUserMessage> SendErrorAsync(this IMessageChannel ch, string title, string error, string url = null, string footer = null)
{
var eb = new EmbedBuilder().WithErrorColor().WithDescription(error)
.WithTitle(title);
if (url != null && Uri.IsWellFormedUriString(url, UriKind.Absolute))
eb.WithUrl(url);
if (!string.IsNullOrWhiteSpace(footer))
eb.WithFooter(efb => efb.WithText(footer));
return ch.SendMessageAsync("", embed: eb.Build());
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}
public static Task<IUserMessage> SendErrorAsync(this IMessageChannel ch, string error)
=> ch.SendMessageAsync("", embed: new EmbedBuilder().WithErrorColor().WithDescription(error).Build());
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public static Task<IUserMessage> SendConfirmAsync(this IMessageChannel ch, string title, string text, string url = null, string footer = null)
{
var eb = new EmbedBuilder().WithOkColor().WithDescription(text)
.WithTitle(title);
if (url != null && Uri.IsWellFormedUriString(url, UriKind.Absolute))
eb.WithUrl(url);
if (!string.IsNullOrWhiteSpace(footer))
eb.WithFooter(efb => efb.WithText(footer));
return ch.SendMessageAsync("", embed: eb.Build());
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}
public static Task<IUserMessage> SendConfirmAsync(this IMessageChannel ch, string text)
=> ch.SendMessageAsync("", embed: new EmbedBuilder().WithOkColor().WithDescription(text).Build());
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public static Task<IUserMessage> SendTableAsync<T>(this IMessageChannel ch, string seed, IEnumerable<T> items, Func<T, string> howToPrint, int columns = 3)
{
var i = 0;
return ch.SendMessageAsync($@"{seed}```css
{string.Join("\n", items.GroupBy(item => (i++) / columns)
.Select(ig => string.Concat(ig.Select(el => howToPrint(el)))))}
```");
}
public static Task<IUserMessage> SendTableAsync<T>(this IMessageChannel ch, IEnumerable<T> items, Func<T, string> howToPrint, int columns = 3) =>
ch.SendTableAsync("", items, howToPrint, columns);
private static readonly IEmote arrow_left = new Emoji("⬅");
private static readonly IEmote arrow_right = new Emoji("➡");
public static Task SendPaginatedConfirmAsync(this IMessageChannel channel, DiscordSocketClient client,
int currentPage, Func<int, EmbedBuilder> pageFunc, int totalElements,
int itemsPerPage, bool addPaginatedFooter = true) =>
channel.SendPaginatedConfirmAsync(client, currentPage,
(x) => Task.FromResult(pageFunc(x)), totalElements, itemsPerPage, addPaginatedFooter);
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/// <summary>
/// danny kamisama
/// </summary>
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public static async Task SendPaginatedConfirmAsync(this IMessageChannel channel, DiscordSocketClient client, int currentPage, Func<int, Task<EmbedBuilder>> pageFunc, int totalElements, int itemsPerPage, bool addPaginatedFooter = true)
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{
var embed = await pageFunc(currentPage).ConfigureAwait(false);
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var lastPage = (totalElements - 1) / itemsPerPage;
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if (addPaginatedFooter)
embed.AddPaginatedFooter(currentPage, lastPage);
var msg = await channel.EmbedAsync(embed) as IUserMessage;
if (lastPage == 0)
return;
await msg.AddReactionAsync(arrow_left).ConfigureAwait(false);
await msg.AddReactionAsync(arrow_right).ConfigureAwait(false);
await Task.Delay(2000).ConfigureAwait(false);
Action<SocketReaction> changePage = async r =>
{
try
{
if (r.Emote.Name == arrow_left.Name)
{
if (currentPage == 0)
return;
var toSend = await pageFunc(--currentPage).ConfigureAwait(false);
if (addPaginatedFooter)
toSend.AddPaginatedFooter(currentPage, lastPage);
await msg.ModifyAsync(x => x.Embed = toSend.Build()).ConfigureAwait(false);
}
else if (r.Emote.Name == arrow_right.Name)
{
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if (lastPage > currentPage)
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{
var toSend = await pageFunc(++currentPage).ConfigureAwait(false);
if (addPaginatedFooter)
toSend.AddPaginatedFooter(currentPage, lastPage);
await msg.ModifyAsync(x => x.Embed = toSend.Build()).ConfigureAwait(false);
}
}
}
catch (Exception)
{
//ignored
}
};
using (msg.OnReaction(client, changePage, changePage))
{
await Task.Delay(30000).ConfigureAwait(false);
}
await msg.RemoveAllReactionsAsync().ConfigureAwait(false);
}
}
}