Detects assembly references and determines loading order automatically.

Assets/Cryville/Crtr/Browsing/LegacyResourceManager.cs

@@ -7,7 +7,6 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using System.Reflection;
 using UnityEngine;
 using Logger = Cryville.Common.Logger;
 
@@ -19,68 +18,12 @@ namespace Cryville.Crtr.Browsing {
 		public string[] CurrentDirectory { get; private set; }
 
 		static bool _init;
-		static readonly Dictionary<string, List<ResourceConverter>> converters
-			= new Dictionary<string, List<ResourceConverter>>();
-		static readonly Dictionary<string, string> localRes
-			= new Dictionary<string, string>();
 
 		public LegacyResourceManager(string rootPath) {
 			_rootPath = rootPath;
 			if (!_init) {
 				_init = true;
-				LoadExtension(typeof(Extensions.Umg.Extension));
-				var extensionDir = new DirectoryInfo(Path.Combine(rootPath, "extensions"));
-				if (extensionDir.Exists) {
-					foreach (var extension in extensionDir.EnumerateFiles("*.dll")) {
-						try {
-							using (Stream stream = extension.OpenRead()) {
-								var buf = new byte[stream.Length];
-								stream.Read(buf, 0, buf.Length);
-								var asm = Assembly.Load(buf);
-								foreach (var type in asm.GetTypes()) {
-									if (typeof(ExtensionInterface).IsAssignableFrom(type)) {
-										LoadExtension(type);
-									}
-								}
-								Logger.Log("main", 1, "Extension", "Loaded extension DLL {0}", extension.Name);
-							}
-						}
-						catch (Exception ex) {
-							Logger.Log("main", 4, "Extension", "An error occured while trying to load extension DLL {0}: {1}", extension.Name, ex);
-						}
-					}
-				}
-			}
-		}
-
-		static void LoadExtension(Type type) {
-			try {
-				var extension = (ExtensionInterface)Activator.CreateInstance(type);
-				var l1 = extension.GetResourceConverters();
-				if (l1 != null) {
-					foreach (var c in l1) {
-						var fs = c.GetSupportedFormats();
-						if (fs == null) continue;
-						foreach (var f in fs) {
-							if (f == null) continue;
-							if (!converters.ContainsKey(f))
-								converters.Add(f, new List<ResourceConverter> { c });
-							else converters[f].Add(c);
-						}
-					}
-				}
-				var l2 = extension.GetResourceFinders();
-				if (l2 != null) {
-					foreach (var f in l2) {
-						var name = f.Name;
-						var path = f.GetRootPath();
-						if (name != null && path != null) localRes.Add(name, path);
-					}
-				}
-				Logger.Log("main", 1, "Extension", "Loaded extension {0}", type);
-			}
-			catch (Exception ex) {
-				Logger.Log("main", 4, "Extension", "Failed to load extension {0}: {1}", type, ex);
+				ExtensionManager.Init(rootPath);
 			}
 		}
 
@@ -172,8 +115,9 @@ namespace Cryville.Crtr.Browsing {
 
 		public bool ImportItemFrom(string path) {
 			var file = new FileInfo(path);
-			if (!converters.ContainsKey(file.Extension)) return false;
-			foreach (var converter in converters[file.Extension]) {
+			IEnumerable<ResourceConverter> converters;
+			if (!ExtensionManager.TryGetConverters(file.Extension, out converters)) return false;
+			foreach (var converter in converters) {
 				IEnumerable<Resource> resources = null;
 				try {
 					resources = converter.ConvertFrom(file);
@@ -249,11 +193,11 @@ namespace Cryville.Crtr.Browsing {
 		}
 
 		public string[] GetSupportedFormats() {
-			return converters.Keys.ToArray();
+			return ExtensionManager.GetSupportedFormats().ToArray();
 		}
 
-		public Dictionary<string, string> GetPresetPaths() {
-			return localRes;
+		public IReadOnlyDictionary<string, string> GetPresetPaths() {
+			return ExtensionManager.GetLocalResourcePaths();
 		}
 
 		static Chart ConvertChartData(ChartData i) {