Added support for built-in plugins

Added dependency injection to IPlugin construction

src/Artemis.Plugins/Models/PluginInfo.cs

@@ -1,9 +1,18 @@
-using Artemis.Plugins.Interfaces;
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Threading.Tasks;
+using Artemis.Plugins.Exceptions;
+using Artemis.Plugins.Interfaces;
+using CSScriptLibrary;
 using Newtonsoft.Json;
+using Ninject;
 
 namespace Artemis.Plugins.Models
 {
-    public class PluginInfo
+    public class PluginInfo : IDisposable
     {
         /// <summary>
         ///     The name of the plugin
@@ -36,5 +45,53 @@ namespace Artemis.Plugins.Models
         /// </summary>
         [JsonIgnore]
         public string Folder { get; set; }
+
+        /// <summary>
+        ///     Indicates wether this is a built-in plugin. Built-in plugins are precompiled and have no files
+        /// </summary>
+        [JsonIgnore]
+        public bool IsBuiltIn { get; private set; }
+
+        public static async Task<PluginInfo> FromFolder(IKernel kernel, string folder)
+        {
+            if (!folder.EndsWith("\\"))
+                folder += "\\";
+            if (!File.Exists(folder + "plugin.json"))
+                throw new ArtemisPluginException(null, "Failed to load plugin, no plugin.json found in " + folder);
+
+            var pluginInfo = JsonConvert.DeserializeObject<PluginInfo>(File.ReadAllText(folder + "plugin.json"));
+            pluginInfo.Folder = folder;
+
+            // Load the main plugin which will contain a class implementing IPlugin
+            var assembly = await CSScript.Evaluator.CompileCodeAsync(File.ReadAllText(folder + pluginInfo.Main));
+            var pluginType = assembly.GetTypes().Where(t => typeof(IPlugin).IsAssignableFrom(t)).ToList();
+            if (!pluginType.Any())
+                throw new ArtemisPluginException(pluginInfo, "Failed to load plugin, no type found that implements IPlugin");
+            if (pluginType.Count > 1)
+                throw new ArtemisPluginException(pluginInfo, "Failed to load plugin, more than one type found that implements IPlugin");
+
+            pluginInfo.Plugin = (IPlugin) kernel.Get(pluginType.First());
+            pluginInfo.Plugin.LoadPlugin();
+
+            return pluginInfo;
+        }
+
+        public static PluginInfo FromBuiltInPlugin(IKernel kernel, IPlugin builtInPlugin)
+        {
+            var pluginInfo = new PluginInfo
+            {
+                Name = builtInPlugin.GetType().Name,
+                Version = FileVersionInfo.GetVersionInfo(Assembly.GetExecutingAssembly().Location).ProductVersion,
+                Plugin = builtInPlugin,
+                IsBuiltIn = true
+            };
+            pluginInfo.Plugin.LoadPlugin();
+
+            return pluginInfo;
+        }
+
+        public void Dispose()
+        {
+        }
     }
 }