Added DateMethodCallTranslator to better support Date truncation

Src/Couchbase.Linq/QueryGeneration/MethodCallTranslators/DateMethodCallTranslator.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.Linq.Expressions;
+using System.Reflection;
+
+namespace Couchbase.Linq.QueryGeneration.MethodCallTranslators;
+
+internal class DateMethodCallTranslator : IMethodCallTranslator
+{
+    private static readonly MethodInfo[] SupportedMethodsStatic =
+    {
+        typeof (DateTime).GetMethod("get_Date"),
+        typeof (DateTimeOffset).GetMethod("get_Date")
+    };
+
+    public IEnumerable<MethodInfo> SupportMethods
+    {
+        get
+        {
+            return SupportedMethodsStatic;
+        }
+    }
+
+    public Expression Translate(MethodCallExpression methodCallExpression, N1QlExpressionTreeVisitor expressionTreeVisitor)
+    {
+        if (methodCallExpression == null)
+        {
+            throw new ArgumentNullException("methodCallExpression");
+        }
+
+        var expression = expressionTreeVisitor.Expression;
+
+        expression.Append("DATE_TRUNC_STR(");
+        expressionTreeVisitor.Visit(methodCallExpression.Object);
+        expression.Append(@",""day"")");
+
+        return methodCallExpression;
+    }
+}