sharp-chat/SharpChat/UsersContext.cs

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3.6 KiB
C#
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2024-05-19 21:02:17 +00:00
using System;
using System.Collections.Generic;
using System.Linq;
namespace SharpChat {
public class UsersContext {
[Flags]
public enum NameTarget {
None = 0,
UserName = 1,
NickName = 2,
UserAndNickName = UserName | NickName,
}
private readonly List<UserInfo> Users = new();
public int TotalCount { get; private set; }
public UserInfo[] All => Users.ToArray();
public UserInfo? Get(
long? userId = null,
string? name = null,
NameTarget nameTarget = NameTarget.UserName
) {
foreach(UserInfo info in Users) {
if(userId != null && info.UserId != userId)
continue;
if(name != null) {
// this could probably all fit in a single if condition, but it'd be massive and disgusting
// and require more thinking power than my goldfish brain can muster
bool match = false;
if(nameTarget.HasFlag(NameTarget.UserName) && info.UserName.Equals(name, StringComparison.InvariantCultureIgnoreCase))
match = true;
else if(nameTarget.HasFlag(NameTarget.NickName) && info.NickName.Equals(name, StringComparison.InvariantCultureIgnoreCase))
match = true;
if(!match)
continue;
}
return info;
}
return null;
}
public UserInfo[] GetMany(
long[]? userIds = null,
string[]? names = null,
NameTarget namesTarget = NameTarget.UserName,
int? minRank = null
) {
List<UserInfo> users = new();
foreach(UserInfo info in Users) {
if(minRank != null && info.Rank < minRank)
continue;
if(userIds != null && !userIds.Contains(info.UserId))
continue;
if(names?.Length > 0) {
bool match = false;
foreach(string name in names) {
if(namesTarget.HasFlag(NameTarget.UserName) && info.UserName.Equals(name, StringComparison.InvariantCultureIgnoreCase))
match = true;
else if(namesTarget.HasFlag(NameTarget.NickName) && info.NickName.Equals(name, StringComparison.InvariantCultureIgnoreCase))
match = true;
}
if(!match)
continue;
}
users.Add(info);
}
return users.ToArray();
}
public void Add(UserInfo info) {
if(Get(info.UserId, info.UserName) != null)
throw new ArgumentException("A user with that id and/or name has already been registred.", nameof(info));
Users.Add(info);
++TotalCount;
}
public void Remove(UserInfo info) {
if(!Users.Contains(info)) {
Remove(info.UserId);
return;
}
Users.Remove(info);
--TotalCount;
}
public void Remove(
long? userId = null,
string? name = null,
NameTarget nameTarget = NameTarget.UserName
) {
UserInfo? info = Get(userId, name, nameTarget);
if(info == null)
return;
Users.Remove(info);
--TotalCount;
}
}
}