RemoveFtsProperties.cs

using System.Threading.Tasks;
using Waher.Persistence.FullTextSearch;
using Waher.Script.Abstraction.Elements;
using Waher.Script.Exceptions;
using Waher.Script.Model;
using Waher.Script.Objects;
 
namespace Waher.Script.FullTextSearch.Functions
{
    public class RemoveFtsProperties : FunctionMultiVariate
    {
        public RemoveFtsProperties(ScriptNode Collection, ScriptNode Properties,
            int Start, int Length, Expression Expression)
            : base(new ScriptNode[] { Collection, Properties },
                  new ArgumentType[] { ArgumentType.Scalar, ArgumentType.Vector },
                  Start, Length, Expression)
        {
        }
 
        public override string FunctionName => nameof(RemoveFtsProperties);
 
        public override string[] DefaultArgumentNames => new string[]
        {
            "Collection", "Properties"
        };
 
        public override bool IsAsynchronous => true;
 
        public override IElement Evaluate(IElement[] Arguments, Variables Variables)
        {
            return this.EvaluateAsync(Arguments, Variables).Result;
        }
 
        public override async Task<IElement> EvaluateAsync(IElement[] Arguments, Variables Variables)
        {
            string Collection = Arguments[0].AssociatedObjectValue?.ToString() ?? string.Empty;
            PropertyDefinition[] Properties = AddFtsProperties.GetPropertyDefinitions(Arguments[1], this);
 
            bool Result = await Waher.Persistence.FullTextSearch.Search.RemoveFullTextSearch(Collection, Properties);
 
            return Result ? BooleanValue.True : BooleanValue.False;
        }
    }
}