[AMG] Implement Identify and GetInformation.

Aaru.Archives/Amg/Consts.cs

@@ -0,0 +1,6 @@
+namespace Aaru.Archives;
+
+public sealed partial class Amg
+{
+    const ushort ARC_MAGIC = 0x36AD;
+}

Aaru.Archives/Amg/Info.cs

@@ -0,0 +1,71 @@
+using System.IO;
+using System.Text;
+using Aaru.CommonTypes.Interfaces;
+using Aaru.Helpers;
+using Spectre.Console;
+
+namespace Aaru.Archives;
+
+public sealed partial class Amg
+{
+#region IArchive Members
+
+    /// <inheritdoc />
+    public bool Identify(IFilter filter)
+    {
+        if(filter.DataForkLength < Marshal.SizeOf<ArcHeader>()) return false;
+
+        Stream stream = filter.GetDataForkStream();
+        stream.Position = 0;
+
+        byte[] hdr = new byte[Marshal.SizeOf<ArcHeader>()];
+
+        stream.ReadExactly(hdr, 0, hdr.Length);
+
+        ArcHeader header = Marshal.ByteArrayToStructureLittleEndian<ArcHeader>(hdr);
+
+        // Not a valid magic
+        return header.magic == ARC_MAGIC;
+    }
+
+    /// <inheritdoc />
+    public void GetInformation(IFilter filter, Encoding encoding, out string information)
+    {
+        encoding    ??= Encoding.ASCII;
+        information =   "";
+
+        if(filter.DataForkLength < Marshal.SizeOf<ArcHeader>()) return;
+
+        Stream stream = filter.GetDataForkStream();
+        stream.Position = 0;
+
+        byte[] hdr = new byte[Marshal.SizeOf<ArcHeader>()];
+
+        stream.ReadExactly(hdr, 0, hdr.Length);
+
+        ArcHeader header = Marshal.ByteArrayToStructureLittleEndian<ArcHeader>(hdr);
+
+        // Not a valid magic
+        if(header.magic != ARC_MAGIC) return;
+
+        var sb = new StringBuilder();
+        sb.AppendLine(Localization.AMG_archive);
+
+        sb.AppendFormat(Localization.AMG_version_0_1, header.version >> 4, header.version & 0xF).AppendLine();
+
+        if(header.files > 0)
+            sb.AppendFormat(Localization.Archive_contains_0_files_for_1_bytes, header.files, header.size).AppendLine();
+
+        if(header.commentLength > 0)
+        {
+            byte[] buffer = new byte[header.commentLength];
+            stream.ReadExactly(buffer, 0, buffer.Length);
+            sb.AppendLine(Localization.Archive_comment);
+            sb.AppendLine(Markup.Escape(StringHandlers.CToString(buffer, encoding)));
+        }
+
+        information = sb.ToString();
+    }
+
+#endregion
+}

Aaru.Archives/Amg/Structs.cs

@@ -0,0 +1,21 @@
+using System.Runtime.InteropServices;
+
+namespace Aaru.Archives;
+
+public sealed partial class Amg
+{
+#region Nested type: ArcHeader
+
+    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
+    readonly struct ArcHeader
+    {
+        public readonly ushort magic;
+        public readonly byte   version;
+        public readonly byte   padding;
+        public readonly ushort files;
+        public readonly uint   size;
+        public readonly ushort commentLength;
+    }
+
+#endregion
+}

Aaru.Archives/Amg/Unimplemented.cs

@@ -12,9 +12,6 @@ public sealed partial class Amg
 {
 #region IArchive Members
 
-    /// <inheritdoc />
-    public bool Identify(IFilter filter) => throw new NotImplementedException();
-
     /// <inheritdoc />
     public ErrorNumber Open(IFilter filter, Encoding encoding) => throw new NotImplementedException();
 
@@ -54,11 +51,5 @@ public sealed partial class Amg
     /// <inheritdoc />
     public ErrorNumber GetEntry(int entryNumber, out IFilter filter) => throw new NotImplementedException();
 
-    /// <inheritdoc />
-    public void GetInformation(IFilter filter, Encoding encoding, out string information)
-    {
-        throw new NotImplementedException();
-    }
-
 #endregion
 }

Aaru.Archives/Arc/Info.cs

@@ -92,7 +92,7 @@ public sealed partial class Arc
         // Hope for the best
 
         var sb = new StringBuilder();
-        sb.AppendLine("[bold][blue]ARC archive[/][/]");
+        sb.AppendLine(Localization.ARC_archive);
 
         information = sb.ToString();
     }

Aaru.Archives/Localization/Localization.Designer.cs

@@ -650,5 +650,35 @@ namespace Aaru.Archives {
                 return ResourceManager.GetString("Profile_ID_0", resourceCulture);
             }
         }
+        
+        internal static string ARC_archive {
+            get {
+                return ResourceManager.GetString("ARC_archive", resourceCulture);
+            }
+        }
+        
+        internal static string AMG_archive {
+            get {
+                return ResourceManager.GetString("AMG_archive", resourceCulture);
+            }
+        }
+        
+        internal static string AMG_version_0_1 {
+            get {
+                return ResourceManager.GetString("AMG_version_0_1", resourceCulture);
+            }
+        }
+        
+        internal static string Archive_contains_0_files_for_1_bytes {
+            get {
+                return ResourceManager.GetString("Archive_contains_0_files_for_1_bytes", resourceCulture);
+            }
+        }
+        
+        internal static string Archive_comment {
+            get {
+                return ResourceManager.GetString("Archive_comment", resourceCulture);
+            }
+        }
     }
 }

Aaru.Archives/Localization/Localization.es.resx

@@ -318,4 +318,19 @@
     <data name="Version_0" xml:space="preserve">
         <value>[bold][slateblue1]Versión:[/][/] [teal]{0}[/]</value>
     </data>
+    <data name="AMG_archive" xml:space="preserve">
+        <value>[bold][blue]Archivo AMG[/][/]</value>
+    </data>
+    <data name="AMG_version_0_1" xml:space="preserve">
+        <value>[slateblue1]Creado con AMG versión [green]{0}.{1}[/][/]</value>
+    </data>
+    <data name="Archive_comment" xml:space="preserve">
+        <value>[bold][slateblue1]Comentario del archivo:[/][/]</value>
+    </data>
+    <data name="Archive_contains_0_files_for_1_bytes" xml:space="preserve">
+        <value>[slateblue1]El archivo contiene [green]{0}[/] ficheros por [lime]{1}[/] bytes[/]</value>
+    </data>
+    <data name="ARC_archive" xml:space="preserve">
+        <value>[bold][blue]Archivo ARC[/][/]</value>
+    </data>
 </root>

Aaru.Archives/Localization/Localization.resx

@@ -326,4 +326,19 @@
     <data name="Profile_ID_0" xml:space="preserve">
         <value>[bold][slateblue1]Profile ID:[/][/] [teal]{0}[/]</value>
     </data>
+    <data name="ARC_archive" xml:space="preserve">
+        <value>[bold][blue]ARC archive[/][/]</value>
+    </data>
+    <data name="AMG_archive" xml:space="preserve">
+        <value>[bold][blue]AMG archive[/][/]</value>
+    </data>
+    <data name="AMG_version_0_1" xml:space="preserve">
+        <value>[slateblue1]Created with AMG version [green]{0}.{1}[/][/]</value>
+    </data>
+    <data name="Archive_contains_0_files_for_1_bytes" xml:space="preserve">
+        <value>[slateblue1]Archive contains [green]{0}[/] files for [lime]{1}[/] bytes[/]</value>
+    </data>
+    <data name="Archive_comment" xml:space="preserve">
+        <value>[bold][slateblue1]Archive comment:[/][/]</value>
+    </data>
 </root>