sharp-chat/SharpChat/Commands/WhoCommand.cs

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using SharpChat.Packet;
using System.Linq;
namespace SharpChat.Commands {
public class WhoCommand : IChatCommand {
public bool IsMatch(ChatCommandContext ctx) {
return ctx.NameEquals("who");
}
public void Dispatch(ChatCommandContext ctx) {
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string? channelName = ctx.Args.FirstOrDefault();
if(string.IsNullOrEmpty(channelName)) {
ctx.Chat.SendTo(ctx.User, new WhoServerResponsePacket(
ctx.Chat.Users.Select(u => u.LegacyName).ToArray(),
ctx.User.LegacyName
));
return;
}
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ChatChannel? channel = ctx.Chat.Channels.FirstOrDefault(c => c.NameEquals(channelName));
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if(channel == null) {
ctx.Chat.SendTo(ctx.User, new ChannelNotFoundErrorPacket(channelName));
return;
}
if(channel.Rank > ctx.User.Rank || (channel.HasPassword && !ctx.User.Permissions.HasFlag(ChatUserPermissions.JoinAnyChannel))) {
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ctx.Chat.SendTo(ctx.User, new WhoChannelNotFoundErrorPacket(channelName));
return;
}
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ctx.Chat.SendTo(ctx.User, new WhoChannelResponsePacket(
channel.Name,
ctx.Chat.GetChannelUsers(channel).Select(user => user.LegacyName).ToArray(),
ctx.User.LegacyName
));
}
}
}