Add FormatCatalog.SerializeSchemeJson

GameRes/FormatCatalog.cs

@@ -33,6 +33,9 @@ using GameRes.Collections;
 using System.Runtime.Serialization.Formatters.Binary;
 using GameRes.Compression;
 using System.Threading;
+using System.Text;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Serialization;
 
 namespace GameRes
 {
@@ -389,6 +392,74 @@ namespace GameRes
             }
         }
 
+        class IncludeFieldsContractResolver : DefaultContractResolver
+        {
+            protected override JsonContract CreateContract (Type objectType)
+            {
+                var contract = base.CreateContract (objectType);
+
+                if (contract is JsonObjectContract objectContract)
+                {
+                    objectContract.MemberSerialization = MemberSerialization.Fields;
+                }
+
+                return contract;
+            }
+        }
+
+        class ByteArrayToHexStringConverter : JsonConverter<byte[]>
+        {
+            public override byte[] ReadJson (JsonReader reader, Type objectType, byte[] existingValue, bool hasExistingValue, JsonSerializer serializer)
+            {
+                throw new NotImplementedException ();
+            }
+
+            public override void WriteJson (JsonWriter writer, byte[] value, JsonSerializer serializer)
+            {
+                if (value == null)
+                {
+                    writer.WriteNull ();
+                    return;
+                }
+                var s = ByteArrayToString (value);
+                writer.WriteValue (s);
+            }
+
+            private static string ByteArrayToString (byte[] input)
+            {
+                var sb = new StringBuilder (input.Length * 2);
+                foreach (var b in input)
+                    sb.AppendFormat ("{0:X2}", b);
+                return sb.ToString ();
+            }
+        }
+
+        public void SerializeSchemeJson (Stream output)
+        {
+            var db = new SchemeDataBase
+            {
+                Version = CurrentSchemeVersion,
+                SchemeMap = new Dictionary<string, ResourceScheme> (),
+                GameMap = m_game_map,
+            };
+            foreach (var format in Formats)
+            {
+                var scheme = format.Scheme;
+                if (null != scheme)
+                    db.SchemeMap[format.Tag] = scheme;
+            }
+            var settings = new JsonSerializerSettings
+            {
+                ContractResolver = new IncludeFieldsContractResolver (),
+                Converters = { new ByteArrayToHexStringConverter () },
+                Formatting = Formatting.Indented,
+            };
+            var json = JsonConvert.SerializeObject (db, settings);
+            var sw = new StreamWriter (output, Encoding.UTF8);
+            sw.Write (json);
+            sw.Flush ();
+        }
+
         /// <summary>
         /// Read text file <paramref name="filename"/> from data directory, performing <paramref name="process_line"/> action on each non-empty line.
         /// </summary>