2016-05-23 22:50:16 +02:00

128 lines
5.0 KiB
C#

using Discord;
using Discord.Commands;
using NadekoBot.Classes;
using NadekoBot.Modules.Permissions.Classes;
using System;
using System.Collections.Concurrent;
using System.Threading.Tasks;
using System.Timers;
namespace NadekoBot.Modules.Administration.Commands
{
class MessageRepeater : DiscordCommand
{
private readonly ConcurrentDictionary<Server, Repeater> repeaters = new ConcurrentDictionary<Server, Repeater>();
private class Repeater
{
[Newtonsoft.Json.JsonIgnore]
public Timer MessageTimer { get; set; }
[Newtonsoft.Json.JsonIgnore]
public Channel RepeatingChannel { get; set; }
public ulong RepeatingServerId { get; set; }
public ulong RepeatingChannelId { get; set; }
public Message lastMessage { get; set; } = null;
public string RepeatingMessage { get; set; }
public int Interval { get; set; }
public Repeater Start()
{
MessageTimer = new Timer { Interval = Interval };
MessageTimer.Elapsed += async (s, e) => await Invoke();
return this;
}
public async Task Invoke()
{
var ch = RepeatingChannel;
var msg = RepeatingMessage;
if (ch != null && !string.IsNullOrWhiteSpace(msg))
{
try
{
if (lastMessage != null)
await lastMessage.Delete().ConfigureAwait(false);
}
catch { }
try
{
lastMessage = await ch.SendMessage(msg).ConfigureAwait(false);
}
catch { }
}
}
}
internal override void Init(CommandGroupBuilder cgb)
{
cgb.CreateCommand(Module.Prefix + "repeatinvoke")
.Alias(Module.Prefix + "repinv")
.Description("Immediately shows the repeat message and restarts the timer.")
.AddCheck(SimpleCheckers.ManageMessages())
.Do(async e =>
{
Repeater rep;
if (!repeaters.TryGetValue(e.Server, out rep))
{
await e.Channel.SendMessage("`No repeating message found on this server.`");
return;
}
await rep.Invoke();
});
cgb.CreateCommand(Module.Prefix + "repeat")
.Description("Repeat a message every X minutes. If no parameters are specified, " +
"repeat is disabled. Requires manage messages.\n**Usage**:`.repeat 5 Hello there`")
.Parameter("minutes", ParameterType.Optional)
.Parameter("msg", ParameterType.Unparsed)
.AddCheck(SimpleCheckers.ManageMessages())
.Do(async e =>
{
var minutesStr = e.GetArg("minutes");
var msg = e.GetArg("msg");
// if both null, disable
if (string.IsNullOrWhiteSpace(msg) && string.IsNullOrWhiteSpace(minutesStr))
{
await e.Channel.SendMessage("Repeating disabled").ConfigureAwait(false);
Repeater rep;
if (repeaters.TryRemove(e.Server, out rep))
rep.MessageTimer.Stop();
return;
}
int minutes;
if (!int.TryParse(minutesStr, out minutes) || minutes < 1 || minutes > 1440)
{
await e.Channel.SendMessage("Invalid value").ConfigureAwait(false);
return;
}
var repeater = repeaters.GetOrAdd(
e.Server,
s => new Repeater
{
Interval = minutes * 60 * 1000,
RepeatingChannel = e.Channel,
RepeatingChannelId = e.Channel.Id,
RepeatingServerId = e.Server.Id,
}.Start()
);
if (!string.IsNullOrWhiteSpace(msg))
repeater.RepeatingMessage = msg;
repeater.MessageTimer.Stop();
repeater.MessageTimer.Start();
await e.Channel.SendMessage(String.Format("👌 Repeating `{0}` every " +
"**{1}** minutes on {2} channel.",
repeater.RepeatingMessage, minutes, repeater.RepeatingChannel))
.ConfigureAwait(false);
});
}
public MessageRepeater(DiscordModule module) : base(module) { }
}
}