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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
namespace StardewModdingAPI.Framework
{
/// <summary>Tracks the installed mods.</summary>
internal class ModRegistry
{
/*********
** Properties
*********/
/// <summary>The registered mod data.</summary>
private readonly List<IModMetadata> Mods = new List<IModMetadata>();
/// <summary>An assembly full name => mod lookup.</summary>
private readonly IDictionary<string, IModMetadata> ModNamesByAssembly = new Dictionary<string, IModMetadata>();
/*********
** Public methods
*********/
/// <summary>Register a mod as a possible source of deprecation warnings.</summary>
/// <param name="metadata">The mod metadata.</param>
public void Add(IModMetadata metadata)
{
this.Mods.Add(metadata);
this.ModNamesByAssembly[metadata.Mod.GetType().Assembly.FullName] = metadata;
}
/// <summary>Get metadata for all loaded mods.</summary>
public IEnumerable<IModMetadata> GetAll()
{
return this.Mods.Select(p => p);
}
/// <summary>Get metadata for a loaded mod.</summary>
/// <param name="uniqueID">The mod's unique ID.</param>
/// <returns>Returns the matching mod's metadata, or <c>null</c> if not found.</returns>
public IModMetadata Get(string uniqueID)
{
// normalise search ID
if (string.IsNullOrWhiteSpace(uniqueID))
return null;
uniqueID = uniqueID.Trim();
// find match
return this.GetAll().FirstOrDefault(p => p.Manifest.UniqueID.Trim().Equals(uniqueID, StringComparison.InvariantCultureIgnoreCase));
}
/// <summary>Get the mod metadata from one of its assemblies.</summary>
/// <param name="type">The type to check.</param>
/// <returns>Returns the mod name, or <c>null</c> if the type isn't part of a known mod.</returns>
public IModMetadata GetFrom(Type type)
{
// null
if (type == null)
return null;
// known type
string assemblyName = type.Assembly.FullName;
if (this.ModNamesByAssembly.ContainsKey(assemblyName))
return this.ModNamesByAssembly[assemblyName];
// not found
return null;
}
/// <summary>Get the friendly name for the closest assembly registered as a source of deprecation warnings.</summary>
/// <returns>Returns the source name, or <c>null</c> if no registered assemblies were found.</returns>
public IModMetadata GetFromStack()
{
// get stack frames
StackTrace stack = new StackTrace();
StackFrame[] frames = stack.GetFrames();
if (frames == null)
return null;
// search stack for a source assembly
foreach (StackFrame frame in frames)
{
MethodBase method = frame.GetMethod();
IModMetadata mod = this.GetFrom(method.ReflectedType);
if (mod != null)
return mod;
}
// no known assembly found
return null;
}
}
}
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