[appledocwizard] Report error occuring during processing

2 files changed, 110 insertions, 3 deletions

diff --git a/AppleDocWizard/AppleDocWizardController.cs b/AppleDocWizard/AppleDocWizardController.cs
index 53150ba..e1d47d7 100644
--- a/AppleDocWizard/AppleDocWizardController.cs
+++ b/AppleDocWizard/AppleDocWizardController.cs
@@ -13,7 +13,8 @@ namespace macdoc
 		enum FinishState {
 			NothingToDo,
 			Processed,
-			Canceled
+			Canceled,
+			Error
 		}
 		
 		CancellationTokenSource source = new CancellationTokenSource ();
@@ -54,7 +55,12 @@ namespace macdoc
 					handler.AdvertiseEarlyFinish ();
 					ShowAlert (FinishState.NothingToDo);
 				}
-			});
+			}).ContinueWith (t => {
+				Console.WriteLine ("Exception occured during doc process");
+				Console.WriteLine ();
+				Console.WriteLine (t.Exception.ToString ());
+				ShowAlert (FinishState.Error);
+			}, TaskContinuationOptions.OnlyOnFaulted);
 		}
 		
 		void ShowAlert (FinishState finishState)
@@ -72,7 +78,11 @@ namespace macdoc
 					break;
 				case FinishState.Canceled:
 					alert.MessageText = "Canceled";
-					alert.MessageText = "The update operation was canceled";
+					alert.InformativeText = "The update operation was canceled";
+					break;
+				case FinishState.Error:
+					alert.MessageText = "An error occured";
+					alert.InformativeText = "A fatal error occured during one of the documentation installer step";
 					break;
 				}
 				
diff --git a/AppleDocWizard/MDocArchive.cs b/AppleDocWizard/MDocArchive.cs
new file mode 100644
index 0000000..23fd293
--- /dev/null
+++ b/AppleDocWizard/MDocArchive.cs
@@ -0,0 +1,97 @@
+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Xml;
+using Ionic.Zip;
+
+namespace macdoc
+{
+	public interface IMonodocArchive
+	{
+		string GetPathForType (Type t);
+	}
+	
+	// This is an uncompiled 'en' directory of ECMA documentation
+	public class DirectoryDocArchive : IMonodocArchive
+	{
+		string baseDir;
+		
+		public DirectoryDocArchive (string baseDir)
+		{
+			this.baseDir = baseDir;
+		}
+		
+		public string GetPathForType (Type t)
+		{
+			
+		}
+	}
+	
+	// This represent a .zip archive of a ECMA API doc set
+	public class EcmaDocArchive : IMonodocArchive
+	{
+		string baseDir;
+		string originalArchivePath;
+		// Provide a mapping between a type full name (e.g. System.String) and the file name of its documentation (in ecma doc case, a number)
+		Dictionary<string, string> typeMapping = new Dictionary<string, string> ();
+		
+		private EcmaDocArchive (string originalArchivePath, string baseDir)
+		{
+			this.baseDir = baseDir;
+			this.originalArchivePath = originalArchivePath;
+			BuildTypeMapping ();
+		}
+		
+		void BuildTypeMapping ()
+		{
+			int id;
+			foreach (var file in Directory.EnumerateFiles (baseDir)) {
+				var name = Path.GetFileName (file);
+				if (!int.TryParse (name, out id))
+					continue;
+				var reader = XmlReader.Create (file);
+				if (!reader.Read ())
+					continue;
+				if (!reader.MoveToAttribute ("FullName"))
+					continue;
+				var typeFullName = reader.ReadContentAsString ();
+				if (string.IsNullOrEmpty (typeFullName))
+					continue;
+				typeMapping[typeFullName] = id.ToString ();
+			}
+		}
+		
+		public string GetPathForType (Type t)
+		{
+			string path;
+			bool result = typeMapping.TryGetValue (t.FullName, out path);
+			return result ? path : null;
+		}
+		
+		public static EcmaDocArchive ExtractAndLoad (string archivePath)
+		{
+			if (!File.Exists (archivePath))
+				throw new ArgumentException ("Archive file doesn't exists", "archivePath");
+			
+			var extractionDir = Path.Combine (Path.GetTempPath (), Path.GetFileNameWithoutExtension (archivePath));
+			if (Directory.Exists (extractionDir))
+				Directory.Delete (extractionDir, true);
+			Directory.CreateDirectory (extractionDir);
+			using (var zip = ZipFile.Read (archivePath))
+				zip.ExtractAll (extractionDir);
+			
+			return new EcmaDocArchive (archivePath, extractionDir);
+		}
+		
+		public void SaveBack ()
+		{
+			File.Copy (originalArchivePath, originalArchivePath + ".origin");
+			File.Delete (originalArchivePath);
+			using (var zip = new ZipArchive (originalArchivePath)) {
+				zip.AddDirectory (baseDir);
+				zip.Save ();
+			}
+		}
+	}
+}
+