sharp-chat/SharpChat.Protocol.SockChat/Commands/NickCommand.cs

72 lines
2.8 KiB
C#

using SharpChat.Protocol.SockChat.Packets;
using SharpChat.Users;
using System;
using System.Collections.Generic;
using System.Linq;
namespace SharpChat.Protocol.SockChat.Commands {
public class NickCommand : ICommand {
private const string NAME = @"nick";
private UserManager Users { get; }
private IUser Sender { get; }
public NickCommand(UserManager users, IUser sender) {
Users = users ?? throw new ArgumentNullException(nameof(users));
Sender = sender ?? throw new ArgumentNullException(nameof(sender));
}
public bool IsCommandMatch(string name, IEnumerable<string> args)
=> name == NAME;
public bool DispatchCommand(CommandContext ctx) {
bool setOthersNick = ctx.User.Can(UserPermissions.SetOthersNickname);
if(!setOthersNick && !ctx.User.Can(UserPermissions.SetOwnNickname)) {
ctx.Connection.SendPacket(new CommandNotAllowedErrorPacket(Sender, NAME));
return true;
}
if(setOthersNick && long.TryParse(ctx.Args.ElementAtOrDefault(1), out long targetUserId) && targetUserId > 0) {
Users.GetUser(targetUserId, user => DoCommand(ctx, 2, user));
} else
DoCommand(ctx);
//string previousName = targetUser == ctx.User ? (targetUser.NickName ?? targetUser.UserName) : null;
//Users.Update(targetUser, nickName: nickStr);
// both of these need to go in ChannelUsers
//ctx.Channel.SendPacket(new UserNickChangePacket(Sender, previousName, targetUser.GetDisplayName()));
//ctx.Channel.SendPacket(new UserUpdatePacket(targetUser));
return true;
}
private void DoCommand(CommandContext ctx, int offset = 1, ILocalUser targetUser = null) {
targetUser ??= ctx.User;
if(ctx.Args.Count() < offset) {
ctx.Connection.SendPacket(new CommandFormatErrorPacket(Sender));
return;
}
string nickStr = string.Join('_', ctx.Args.Skip(offset)).CleanNickName().Trim();
if(nickStr.Equals(targetUser.UserName, StringComparison.InvariantCulture))
nickStr = null;
else if(nickStr.Length > 15)
nickStr = nickStr.Substring(0, 15);
else if(string.IsNullOrEmpty(nickStr))
nickStr = null;
if(nickStr != null)
Users.GetUser(nickStr, user => {
if(user != null)
ctx.Connection.SendPacket(new NickNameInUseErrorPacket(Sender, nickStr));
else
Users.Update(targetUser, nickName: nickStr);
});
else
Users.Update(targetUser, nickName: string.Empty);
}
}
}