sharp-chat/SharpChat/ChatChannel.cs

106 lines
3.1 KiB
C#

using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace SharpChat {
public class ChatChannel : IPacketTarget {
public string Name { get; set; }
public string Password { get; set; } = string.Empty;
public bool IsTemporary { get; set; } = false;
public int Rank { get; set; } = 0;
public ChatUser Owner { get; set; } = null;
private List<ChatUser> Users { get; } = new List<ChatUser>();
private List<ChatChannelTyping> Typing { get; } = new List<ChatChannelTyping>();
public bool HasPassword
=> !string.IsNullOrWhiteSpace(Password);
public string TargetName => Name;
public ChatChannel() {
}
public ChatChannel(string name) {
Name = name;
}
public bool HasUser(ChatUser user) {
lock (Users)
return Users.Contains(user);
}
public void UserJoin(ChatUser user) {
if (!user.InChannel(this)) {
// Remove this, a different means for this should be established for V1 compat.
user.Channel?.UserLeave(user);
user.JoinChannel(this);
}
lock (Users) {
if (!HasUser(user))
Users.Add(user);
}
}
public void UserLeave(ChatUser user) {
lock (Users)
Users.Remove(user);
if (user.InChannel(this))
user.LeaveChannel(this);
}
public void Send(IServerPacket packet) {
lock (Users) {
foreach (ChatUser user in Users)
user.Send(packet);
}
}
public IEnumerable<ChatUser> GetUsers(IEnumerable<ChatUser> exclude = null) {
lock (Users) {
IEnumerable<ChatUser> users = Users.OrderByDescending(x => x.Rank);
if (exclude != null)
users = users.Except(exclude);
return users.ToList();
}
}
public bool IsTyping(ChatUser user) {
if(user == null)
return false;
lock(Typing)
return Typing.Any(x => x.User == user && !x.HasExpired);
}
public bool CanType(ChatUser user) {
if(user == null || !HasUser(user))
return false;
return !IsTyping(user);
}
public ChatChannelTyping RegisterTyping(ChatUser user) {
if(user == null || !HasUser(user))
return null;
ChatChannelTyping typing = new ChatChannelTyping(user);
lock(Typing) {
Typing.RemoveAll(x => x.HasExpired);
Typing.Add(typing);
}
return typing;
}
public string Pack() {
StringBuilder sb = new StringBuilder();
sb.Append(Name);
sb.Append('\t');
sb.Append(string.IsNullOrEmpty(Password) ? '0' : '1');
sb.Append('\t');
sb.Append(IsTemporary ? '1' : '0');
return sb.ToString();
}
}
}