53 lines
1.6 KiB
C#
53 lines
1.6 KiB
C#
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using SharpChat.Protocol.IRC.Replies;
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using SharpChat.Protocol.IRC.Users;
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using SharpChat.Users;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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namespace SharpChat.Protocol.IRC.ClientCommands {
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public class IsOnCommand : IClientCommand {
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public const string NAME = @"ISON";
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public string CommandName => NAME;
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public bool RequireSession => true;
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private UserManager Users { get; }
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public IsOnCommand(UserManager users) {
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Users = users ?? throw new ArgumentNullException(nameof(users));
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}
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public void HandleCommand(ClientCommandContext ctx) {
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IEnumerable<string> userNames = ctx.Arguments.Select(u => u.ToLowerInvariant());
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const int max_length = 400; // allow for 112 characters of overhead
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int length = 0;
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List<string> batch = new();
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void sendBatch() {
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if(length < 1)
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return;
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ctx.Connection.SendReply(new IsOnReply(batch));
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length = 0;
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batch.Clear();
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};
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Users.GetUsers(u => (u.Status == UserStatus.Online || u.Status == UserStatus.Away) && userNames.Contains(u.GetIRCName()), users => {
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foreach(IUser user in users) {
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string name = user.GetIRCName();
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int nameLength = name.Length + 1;
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if(length + nameLength > max_length)
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sendBatch();
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length += nameLength;
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batch.Add(name);
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}
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sendBatch();
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});
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}
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}
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}
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