feat(central-ui): add Galaxy-type to DataType mapper for secured writes

src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Pages/Operations/SecuredWriteDataTypeMapper.cs

@@ -0,0 +1,30 @@
+using ZB.MOM.WW.ScadaBridge.Commons.Types.Enums;
+
+namespace ZB.MOM.WW.ScadaBridge.CentralUI.Components.Pages.Operations;
+
+/// <summary>
+/// Best-effort map from the MxGateway/Galaxy free-form attribute type name
+/// (<c>GalaxyAttribute.data_type_name</c>, surfaced on <c>BrowseNode.DataType</c>)
+/// to a ScadaBridge <see cref="DataType"/>. Used by the Secured Writes page to
+/// pre-fill the data-type dropdown when a tag is picked. Unknown or blank names
+/// return false so the operator's existing selection is left untouched. Galaxy
+/// type names are free-form text, not a stable enum — keep this tolerant.
+/// </summary>
+internal static class SecuredWriteDataTypeMapper
+{
+    public static bool TryMap(string? galaxyTypeName, out DataType dataType)
+    {
+        dataType = default;
+        if (string.IsNullOrWhiteSpace(galaxyTypeName)) return false;
+        switch (galaxyTypeName.Trim().ToLowerInvariant())
+        {
+            case "boolean": case "bool":              dataType = DataType.Boolean;  return true;
+            case "integer": case "int": case "int32": dataType = DataType.Int32;    return true;
+            case "float":                             dataType = DataType.Float;    return true;
+            case "double":                            dataType = DataType.Double;   return true;
+            case "string":                            dataType = DataType.String;   return true;
+            case "time":                              dataType = DataType.DateTime; return true;
+            default:                                  return false;
+        }
+    }
+}

tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Components/SecuredWriteDataTypeMapperTests.cs

@@ -0,0 +1,35 @@
+using ZB.MOM.WW.ScadaBridge.CentralUI.Components.Pages.Operations;
+using ZB.MOM.WW.ScadaBridge.Commons.Types.Enums;
+
+namespace ZB.MOM.WW.ScadaBridge.CentralUI.Tests.Components;
+
+public class SecuredWriteDataTypeMapperTests
+{
+    [Theory]
+    [InlineData("Boolean", DataType.Boolean)]
+    [InlineData("bool", DataType.Boolean)]
+    [InlineData("Integer", DataType.Int32)]
+    [InlineData("int", DataType.Int32)]
+    [InlineData("Int32", DataType.Int32)]
+    [InlineData("Float", DataType.Float)]
+    [InlineData("Double", DataType.Double)]
+    [InlineData("String", DataType.String)]
+    [InlineData("Time", DataType.DateTime)]
+    [InlineData("  double  ", DataType.Double)] // trimmed + case-insensitive
+    public void TryMap_known_galaxy_types_map(string galaxy, DataType expected)
+    {
+        Assert.True(SecuredWriteDataTypeMapper.TryMap(galaxy, out var dt));
+        Assert.Equal(expected, dt);
+    }
+
+    [Theory]
+    [InlineData(null)]
+    [InlineData("")]
+    [InlineData("   ")]
+    [InlineData("ElapsedTime")]
+    [InlineData("SomeVendorType")]
+    public void TryMap_unknown_or_blank_returns_false(string? galaxy)
+    {
+        Assert.False(SecuredWriteDataTypeMapper.TryMap(galaxy, out _));
+    }
+}