hondacrx
6fcc12de09
Port From (https://github.com/TrinityCore/TrinityCore/commit/6d2b8511547004b997cc1de76cdbaf5498b8b12c)
363 lines
16 KiB
C#
363 lines
16 KiB
C#
/*
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* Copyright (C) 2012-2020 CypherCore <http://github.com/CypherCore>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using Framework.Constants;
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using Game.DataStorage;
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using Game.Entities;
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using Game.Spells;
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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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using System.Reflection;
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namespace Game.Chat
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{
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class CommandArgs
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{
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public static ChatCommandResult ConsumeFromOffset(dynamic[] tuple, int offset, ParameterInfo[] parameterInfos, CommandHandler handler, string args)
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{
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if (offset < tuple.Length)
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return TryConsumeTo(tuple, offset, parameterInfos, handler, args);
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else if (!args.IsEmpty()) /* the entire string must be consumed */
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return default;
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else
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return new ChatCommandResult(args);
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}
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static ChatCommandResult TryConsumeTo(dynamic[] tuple, int offset, ParameterInfo[] parameterInfos, CommandHandler handler, string args)
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{
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var optionalArgAttribute = parameterInfos[offset].GetCustomAttribute<OptionalArgAttribute>(true);
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if (optionalArgAttribute != null || parameterInfos[offset].ParameterType.IsGenericType && parameterInfos[offset].ParameterType.GetGenericTypeDefinition() == typeof(Nullable<>))
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{
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// try with the argument
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Type myArg = Nullable.GetUnderlyingType(parameterInfos[offset].ParameterType) ?? parameterInfos[offset].ParameterType;
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ChatCommandResult result1 = TryConsume(out tuple[offset], myArg, handler, args);
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if (result1.IsSuccessful())
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if ((result1 = ConsumeFromOffset(tuple, offset + 1, parameterInfos, handler, result1)).IsSuccessful())
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return result1;
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// try again omitting the argument
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tuple[offset] = default;
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ChatCommandResult result2 = ConsumeFromOffset(tuple, offset + 1, parameterInfos, handler, args);
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if (result2.IsSuccessful())
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return result2;
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if (result1.HasErrorMessage() && result2.HasErrorMessage())
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{
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return ChatCommandResult.FromErrorMessage($"{handler.GetCypherString(CypherStrings.CmdparserEither)} \"{result2.GetErrorMessage()}\"\n{handler.GetCypherString(CypherStrings.CmdparserOr)} \"{result1.GetErrorMessage()}\"");
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}
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else if (result1.HasErrorMessage())
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return result1;
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else
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return result2;
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}
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else
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{
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ChatCommandResult next;
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var variantArgAttribute = parameterInfos[offset].GetCustomAttribute<VariantArgAttribute>(true);
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if (variantArgAttribute != null)
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next = TryConsumeVariant(out tuple[offset], variantArgAttribute.Types, handler, args);
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else
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next = TryConsume(out tuple[offset], parameterInfos[offset].ParameterType, handler, args);
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if (next.IsSuccessful())
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return ConsumeFromOffset(tuple, offset + 1, parameterInfos, handler, next);
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else
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return next;
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}
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}
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public static ChatCommandResult TryConsume(out dynamic val, Type type, CommandHandler handler, string args)
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{
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val = default;
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var hyperlinkResult = Hyperlink.TryParse(out val, type, handler, args);
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if (hyperlinkResult.IsSuccessful())
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return hyperlinkResult;
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if (type.IsEnum)
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type = type.GetEnumUnderlyingType();
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var (token, tail) = args.Tokenize();
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switch (Type.GetTypeCode(type))
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{
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case TypeCode.SByte:
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{
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if (token.IsEmpty())
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return default;
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if (sbyte.TryParse(token, out sbyte tempValue))
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val = tempValue;
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else
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserStringValueInvalid, token, Type.GetTypeCode(type)));
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return new ChatCommandResult(tail);
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}
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case TypeCode.Int16:
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{
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if (token.IsEmpty())
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return default;
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if (short.TryParse(token, out short tempValue))
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val = tempValue;
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else
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserStringValueInvalid, token, Type.GetTypeCode(type)));
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return new ChatCommandResult(tail);
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}
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case TypeCode.Int32:
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{
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if (token.IsEmpty())
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return default;
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if (int.TryParse(token, out int tempValue))
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val = tempValue;
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else
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserStringValueInvalid, token, Type.GetTypeCode(type)));
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return new ChatCommandResult(tail);
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}
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case TypeCode.Int64:
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{
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if (token.IsEmpty())
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return default;
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if (long.TryParse(token, out long tempValue))
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val = tempValue;
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else
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserStringValueInvalid, token, Type.GetTypeCode(type)));
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return new ChatCommandResult(tail);
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}
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case TypeCode.Byte:
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{
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if (token.IsEmpty())
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return default;
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if (byte.TryParse(token, out byte tempValue))
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val = tempValue;
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else
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserStringValueInvalid, token, Type.GetTypeCode(type)));
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return new ChatCommandResult(tail);
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}
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case TypeCode.UInt16:
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{
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if (token.IsEmpty())
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return default;
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if (ushort.TryParse(token, out ushort tempValue))
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val = tempValue;
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else
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserStringValueInvalid, token, Type.GetTypeCode(type)));
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return new ChatCommandResult(tail);
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}
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case TypeCode.UInt32:
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{
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if (token.IsEmpty())
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return default;
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if (uint.TryParse(token, out uint tempValue))
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val = tempValue;
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else
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserStringValueInvalid, token, Type.GetTypeCode(type)));
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return new ChatCommandResult(tail);
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}
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case TypeCode.UInt64:
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{
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if (token.IsEmpty())
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return default;
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if (ulong.TryParse(token, out ulong tempValue))
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val = tempValue;
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else
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserStringValueInvalid, token, Type.GetTypeCode(type)));
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return new ChatCommandResult(tail);
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}
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case TypeCode.Single:
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{
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if (token.IsEmpty())
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return default;
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if (float.TryParse(token, out float tempValue))
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val = tempValue;
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else
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserStringValueInvalid, token, Type.GetTypeCode(type)));
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if (!float.IsFinite(val))
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserStringValueInvalid, token, Type.GetTypeCode(type)));
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return new ChatCommandResult(tail);
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}
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case TypeCode.String:
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{
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if (token.IsEmpty())
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return default;
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val = token;
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return new ChatCommandResult(tail);
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}
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case TypeCode.Object:
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{
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switch (type.Name)
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{
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case nameof(Tail):
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val = new Tail();
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return val.TryConsume(handler, args);
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case nameof(PlayerIdentifier):
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val = new PlayerIdentifier();
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return val.TryConsume(handler, args);
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case nameof(AccountIdentifier):
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val = new AccountIdentifier();
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return val.TryConsume(handler, args);
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case nameof(AchievementRecord):
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{
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ChatCommandResult result = TryConsume(out dynamic tempVal, typeof(uint), handler, args);
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if (!result.IsSuccessful() || (val = CliDB.AchievementStorage.LookupByKey((uint)tempVal)) != null)
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return result;
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserAchievementNoExist, tempVal));
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}
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case nameof(CurrencyTypesRecord):
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{
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ChatCommandResult result = TryConsume(out dynamic tempVal, typeof(uint), handler, args);
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if (!result.IsSuccessful() || (val = CliDB.CurrencyTypesStorage.LookupByKey((uint)tempVal)) != null)
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return result;
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserCurrencyNoExist, tempVal));
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}
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case nameof(GameTele):
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{
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ChatCommandResult result = TryConsume(out dynamic tempVal, typeof(uint), handler, args);
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if (!result.IsSuccessful())
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result = TryConsume(out tempVal, typeof(string), handler, args);
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if (!result.IsSuccessful() || (val = Global.ObjectMgr.GetGameTele(tempVal)) != null)
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return result;
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if (tempVal is uint)
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserGameTeleIdNoExist, tempVal));
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else
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserGameTeleNoExist, tempVal));
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}
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case nameof(ItemTemplate):
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{
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ChatCommandResult result = TryConsume(out dynamic tempVal, typeof(uint), handler, args);
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if (!result.IsSuccessful() || (val = Global.ObjectMgr.GetItemTemplate(tempVal)))
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return result;
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserItemNoExist, tempVal));
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}
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case nameof(SpellInfo):
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{
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ChatCommandResult result = TryConsume(out dynamic tempVal, typeof(uint), handler, args);
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if (!result.IsSuccessful() || (val = Global.SpellMgr.GetSpellInfo(tempVal, Difficulty.None)) != null)
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return result;
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserSpellNoExist, tempVal));
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}
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case nameof(Quest):
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{
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ChatCommandResult result = TryConsume(out dynamic tempVal, typeof(uint), handler, args);
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if (!result.IsSuccessful() || (val = Global.ObjectMgr.GetQuestTemplate(tempVal)))
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return result;
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return ChatCommandResult.FromErrorMessage(handler.GetParsedString(CypherStrings.CmdparserQuestNoExist, tempVal));
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}
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}
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break;
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}
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}
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return default;
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}
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public static ChatCommandResult TryConsumeVariant(out dynamic val, Type[] types, CommandHandler handler, string args)
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{
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ChatCommandResult result = TryAtIndex(out val, types, 0, handler, args);
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if (result.HasErrorMessage() && (result.GetErrorMessage().IndexOf('\n') != -1))
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return ChatCommandResult.FromErrorMessage($"{handler.GetCypherString(CypherStrings.CmdparserEither)} {result.GetErrorMessage()}");
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return result;
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}
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static ChatCommandResult TryAtIndex(out dynamic val, Type[] types, int index, CommandHandler handler, string args)
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{
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val = default;
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if (index < types.Length)
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{
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ChatCommandResult thisResult = TryConsume(out val, types[index], handler, args);
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if (thisResult.IsSuccessful())
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return thisResult;
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else
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{
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ChatCommandResult nestedResult = TryAtIndex(out val, types, index+1, handler, args);
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if (nestedResult.IsSuccessful() || !thisResult.HasErrorMessage())
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return nestedResult;
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if (!nestedResult.HasErrorMessage())
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return thisResult;
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if (nestedResult.GetErrorMessage().StartsWith("\""))
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return ChatCommandResult.FromErrorMessage($"\"{thisResult.GetErrorMessage()}\"\n{handler.GetCypherString(CypherStrings.CmdparserOr)} {nestedResult.GetErrorMessage()}");
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else
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return ChatCommandResult.FromErrorMessage($"\"{thisResult.GetErrorMessage()}\"\n{handler.GetCypherString(CypherStrings.CmdparserOr)} \"{nestedResult.GetErrorMessage()}\"");
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}
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}
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else
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return default;
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}
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}
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public struct ChatCommandResult
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{
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bool result;
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dynamic value;
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string errorMessage;
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public ChatCommandResult(string _value = "")
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{
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result = true;
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value = _value;
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errorMessage = null;
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}
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public bool IsSuccessful() { return result; }
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public bool HasErrorMessage() { return !errorMessage.IsEmpty(); }
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public string GetErrorMessage() { return errorMessage; }
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public void SetErrorMessage(string _value)
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{
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result = false;
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errorMessage = _value;
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}
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public static ChatCommandResult FromErrorMessage(string str)
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{
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var result = new ChatCommandResult();
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result.SetErrorMessage(str);
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return result;
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}
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public static implicit operator string(ChatCommandResult stringResult)
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{
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return stringResult.value;
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}
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}
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}
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