Implement Write(...) method for Geraetemerkmal System.Text.Json Con…

…verters (#447)
Hochfrequenz · Jun 11, 2024 · f7dc51a · f7dc51a
1 parent 3b4f1f5
commit f7dc51a
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Showing 2 changed files with 73 additions and 3 deletions.
diff --git a/BO4E/meta/LenientConverters/LenientSystemTextGeraetemerkmalGasConverter.cs b/BO4E/meta/LenientConverters/LenientSystemTextGeraetemerkmalGasConverter.cs
@@ -2,6 +2,7 @@
 
 using System;
 using System.Text.Json;
+using System.Text.RegularExpressions;
 
 namespace BO4E.meta.LenientConverters
 {
@@ -35,12 +36,25 @@ public override Geraetemerkmal Read(ref Utf8JsonReader reader, Type typeToConver
             }
         }
 
+        /// <summary>
+        /// https://regex101.com/r/dAUAHL/1
+        /// </summary>
+        private static readonly Regex GasPrefixRegex = new(@"^(?<praefix>(?:GAS_)?)(?<rest>.+)$", RegexOptions.Compiled);
+
         /// <summary>
         /// <inheritdoc cref="System.Text.Json.Serialization.JsonConverter{T}.Write"/>
         /// </summary>
         public override void Write(Utf8JsonWriter writer, Geraetemerkmal value, JsonSerializerOptions options)
         {
-            throw new NotImplementedException();
+            var stringValue = value.ToString();
+            var match = GasPrefixRegex.Match(stringValue);
+            if (!match.Success)
+            {
+                writer.WriteStringValue(stringValue);
+                return;
+            }
+            var rest = match.Groups["rest"].Value;
+            writer.WriteStringValue(rest);
         }
     }
 
@@ -78,12 +92,33 @@ public class LenientSystemTextNullableGeraetemerkmalGasConverter : System.Text.J
             }
         }
 
+        /// <summary>
+        /// https://regex101.com/r/dAUAHL/1
+        /// </summary>
+        private static readonly Regex GasPrefixRegex = new(@"^(?<praefix>(?:GAS_)?)(?<rest>.+)$", RegexOptions.Compiled);
+
         /// <summary>
         /// <inheritdoc cref="System.Text.Json.Serialization.JsonConverter{T}.Write"/>
         /// </summary>
         public override void Write(Utf8JsonWriter writer, Geraetemerkmal? value, JsonSerializerOptions options)
         {
-            throw new NotImplementedException();
+            if (value.HasValue)
+            {
+                // Remove the "GAS_" prefix if it exists
+                var stringValue = value.Value.ToString();
+                var match = GasPrefixRegex.Match(stringValue);
+                if (!match.Success)
+                {
+                    writer.WriteStringValue(stringValue);
+                    return;
+                }
+                var rest = match.Groups["rest"].Value;
+                writer.WriteStringValue(rest);
+            }
+            else
+            {
+                writer.WriteNullValue();
+            }
         }
     }
 }
diff --git a/BO4ETestProject/TestGeraetemerkmalConverter.cs b/BO4ETestProject/TestGeraetemerkmalConverter.cs
@@ -102,6 +102,41 @@ public void TestSystemText_Nullable_Success_GPointSomething()
             result.Merkmal.Should().Be(Geraetemerkmal.GAS_G2P5);
         }
 
-        // todo: someone should write the system.text equivalent once there's time.
+
+        [TestMethod]
+        public void TestSystemText_Write_NonNullable()
+        {
+            var settings = new System.Text.Json.JsonSerializerOptions()
+            {
+                Converters = { new LenientSystemTextGeraetemerkmalGasConverter() }
+            };
+            var instance = new SomethingWithAGeraetemerkmal { Merkmal = Geraetemerkmal.GAS_G4 };
+            var json = System.Text.Json.JsonSerializer.Serialize(instance, settings);
+            json.Should().Be("{\"merkmal\":\"G4\"}");
+        }
+
+        [TestMethod]
+        public void TestSystemText_Write_Nullable()
+        {
+            var settings = new System.Text.Json.JsonSerializerOptions()
+            {
+                Converters = { new LenientSystemTextNullableGeraetemerkmalGasConverter() }
+            };
+            var instance = new SomethingWithANullableGeraetemerkmal { Merkmal = Geraetemerkmal.GAS_G2P5 };
+            var json = System.Text.Json.JsonSerializer.Serialize(instance, settings);
+            json.Should().Be("{\"merkmal\":\"G2P5\"}");
+        }
+
+        [TestMethod]
+        public void TestSystemText_Write_Nullable_Null()
+        {
+            var settings = new System.Text.Json.JsonSerializerOptions()
+            {
+                Converters = { new LenientSystemTextNullableGeraetemerkmalGasConverter() }
+            };
+            var instance = new SomethingWithANullableGeraetemerkmal { Merkmal = null };
+            var json = System.Text.Json.JsonSerializer.Serialize(instance, settings);
+            json.Should().Be("{\"merkmal\":null}");
+        }
     }
 }