using System.Text.Json.Serialization;

namespace Strata.SqlTools.Query;

public class FilterGroup
{
    // Hereditary logical operation applied to all Filters
    public LogicalOperator LogicalOperator { get; set; }

    public IEnumerable<Filter> Filters { get; }

    public FilterGroup()
    {
        LogicalOperator = LogicalOperator.And;
        Filters = new List<Filter>();
    }

    [JsonConstructor]
    public FilterGroup(IEnumerable<Filter> filters, LogicalOperator logicalOperator)
    {
        Filters = filters.Where(x => x.IsValid()).ToList();
        LogicalOperator = logicalOperator;
    }

    public bool IsValid()
    {
        return Filters != null && Filters.Any();
    }
}