IW4M-Admin/SharedLibraryCore/Commands/CommandProcessing.cs

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C#
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using SharedLibraryCore.Exceptions;
using SharedLibraryCore.Objects;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
namespace SharedLibraryCore.Commands
{
public class CommandProcessing
{
public static async Task<Command> ValidateCommand(GameEvent E)
{
var loc = Utilities.CurrentLocalization.LocalizationIndex;
var Manager = E.Owner.Manager;
string CommandString = E.Data.Substring(1, E.Data.Length - 1).Split(' ')[0];
E.Message = E.Data;
Command C = null;
foreach (Command cmd in Manager.GetCommands())
{
if (cmd.Name == CommandString.ToLower() || cmd.Alias == CommandString.ToLower())
C = cmd;
}
if (C == null)
{
E.Origin.Tell(loc["COMMAND_UNKNOWN"]);
throw new CommandException($"{E.Origin} entered unknown command \"{CommandString}\"");
}
E.Data = E.Data.RemoveWords(1);
String[] Args = E.Data.Trim().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (E.Origin.Level < C.Permission)
{
E.Origin.Tell(loc["COMMAND_NOACCESS"]);
throw new CommandException($"{E.Origin} does not have access to \"{C.Name}\"");
}
if (Args.Length < (C.RequiredArgumentCount))
{
E.Origin.Tell(loc["COMMAND_MISSINGARGS"]);
E.Origin.Tell(C.Syntax);
throw new CommandException($"{E.Origin} did not supply enough arguments for \"{C.Name}\"");
}
if (C.RequiresTarget || Args.Length > 0)
{
if (!Int32.TryParse(Args[0], out int cNum))
cNum = -1;
if (Args[0][0] == '@') // user specifying target by database ID
{
int dbID = -1;
int.TryParse(Args[0].Substring(1, Args[0].Length - 1), out dbID);
var found = await Manager.GetClientService().Get(dbID);
if (found != null)
{
E.Target = found.AsPlayer();
E.Target.CurrentServer = E.Owner;
E.Data = String.Join(" ", Args.Skip(1));
}
}
else if (Args[0].Length < 3 && cNum > -1 && cNum < E.Owner.MaxClients) // user specifying target by client num
{
if (E.Owner.Players[cNum] != null)
{
E.Target = E.Owner.Players[cNum];
E.Data = String.Join(" ", Args.Skip(1));
}
}
List<Player> matchingPlayers;
if (E.Target == null && C.RequiresTarget) // Find active player including quotes (multiple words)
{
matchingPlayers = E.Owner.GetClientByName(E.Data.Trim());
if (matchingPlayers.Count > 1)
{
E.Origin.Tell(loc["COMMAND_TARGET_MULTI"]);
throw new CommandException($"{E.Origin} had multiple players found for {C.Name}");
}
else if (matchingPlayers.Count == 1)
{
E.Target = matchingPlayers.First();
string escapedName = Regex.Escape(E.Target.Name);
var reg = new Regex($"(\"{escapedName}\")|({escapedName})", RegexOptions.IgnoreCase);
E.Data = reg.Replace(E.Data, "", 1).Trim();
if (E.Data.Length == 0 && C.RequiredArgumentCount > 1)
{
E.Origin.Tell(loc["COMMAND_MISSINGARGS"]);
E.Origin.Tell(C.Syntax);
throw new CommandException($"{E.Origin} did not supply enough arguments for \"{C.Name}\"");
}
}
}
if (E.Target == null && C.RequiresTarget) // Find active player as single word
{
matchingPlayers = E.Owner.GetClientByName(Args[0]);
if (matchingPlayers.Count > 1)
{
E.Origin.Tell(loc["COMMAND_TARGET_MULTI"]);
foreach (var p in matchingPlayers)
{
E.Origin.Tell($"[^3{p.ClientNumber}^7] {p.Name}");
}
throw new CommandException($"{E.Origin} had multiple players found for {C.Name}");
}
else if (matchingPlayers.Count == 1)
{
E.Target = matchingPlayers.First();
string escapedName = Regex.Escape(E.Target.Name);
string escapedArg = Regex.Escape(Args[0]);
var reg = new Regex($"({escapedName})|({escapedArg})", RegexOptions.IgnoreCase);
E.Data = reg.Replace(E.Data, "", 1).Trim();
if ((E.Data.Trim() == E.Target.Name.ToLower().Trim() ||
E.Data == String.Empty) &&
C.RequiresTarget)
{
E.Origin.Tell(loc["COMMAND_MISSINGARGS"]);
E.Origin.Tell(C.Syntax);
throw new CommandException($"{E.Origin} did not supply enough arguments for \"{C.Name}\"");
}
}
}
if (E.Target == null && C.RequiresTarget)
{
E.Origin.Tell(loc["COMMAND_TARGET_NOTFOUND"]);
throw new CommandException($"{E.Origin} specified invalid player for \"{C.Name}\"");
}
}
E.Data = E.Data.Trim();
return C;
}
}
}