65 lines
2.8 KiB
C#
65 lines
2.8 KiB
C#
#nullable enable
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using System;
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using System.Collections.Generic;
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namespace ShrinkNetwork
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{
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public sealed class ShrinkNetworkMessageRegistry
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{
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private readonly Dictionary<int, ShrinkNetworkMessageMeta> _opcodeToMeta = new();
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private readonly Dictionary<Type, ShrinkNetworkMessageMeta> _typeToMeta = new();
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private readonly HashSet<string> _routes = new(StringComparer.Ordinal);
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public IReadOnlyCollection<ShrinkNetworkMessageMeta> Registrations => _typeToMeta.Values;
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public void Register<TMessage>(int opcode, string? route = null) where TMessage : IShrinkNetworkMessage
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=> Register(typeof(TMessage), opcode, route);
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public void Register(Type messageType, int opcode, string? route = null)
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{
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if (messageType == null)
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throw new ArgumentNullException(nameof(messageType));
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if (!typeof(IShrinkNetworkMessage).IsAssignableFrom(messageType))
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throw new ArgumentException($"Type {messageType.FullName} is not a network message.", nameof(messageType));
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if (_opcodeToMeta.ContainsKey(opcode))
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throw new InvalidOperationException($"Opcode {opcode} is already registered.");
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if (_typeToMeta.ContainsKey(messageType))
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throw new InvalidOperationException($"Message type {messageType.FullName} is already registered.");
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route = string.IsNullOrWhiteSpace(route) ? null : route.Trim();
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if (route != null && !_routes.Add(route)) throw new InvalidOperationException($"SHRINK002 Route '{route}' is already registered.");
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var meta = new ShrinkNetworkMessageMeta(opcode, messageType, route);
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_opcodeToMeta.Add(opcode, meta);
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_typeToMeta.Add(messageType, meta);
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}
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public bool TryGetMeta(int opcode, out ShrinkNetworkMessageMeta? meta) => _opcodeToMeta.TryGetValue(opcode, out meta);
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public bool TryGetMeta(Type type, out ShrinkNetworkMessageMeta? meta) => _typeToMeta.TryGetValue(type, out meta);
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public ShrinkNetworkMessageMeta GetMeta<TMessage>() where TMessage : IShrinkNetworkMessage => GetMeta(typeof(TMessage));
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public ShrinkNetworkMessageMeta GetMeta(Type type)
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{
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if (_typeToMeta.TryGetValue(type, out var meta))
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return meta;
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throw new KeyNotFoundException($"Message type {type.FullName} is not registered.");
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}
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}
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public sealed class ShrinkNetworkMessageMeta
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{
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public int Opcode { get; }
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public Type MessageType { get; }
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public string? Route { get; }
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public ShrinkNetworkMessageMeta(int opcode, Type messageType, string? route)
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{
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Opcode = opcode;
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MessageType = messageType;
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Route = route;
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}
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}
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}
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