using System.Collections.Generic;

namespace axXez.TS3.Protocol
{
    /// <summary>Describes the set of properties that changed on a <see cref="TsEntity"/> after the most recent update.</summary>
    public class TsEntityChangeInfo
    {
        private readonly IReadOnlySet<string> _changed;

        internal TsEntityChangeInfo(HashSet<string> changed) => _changed = changed;

        /// <summary>Returns <c>true</c> if the named property changed in the most recent update.</summary>
        public bool Has(string propertyName) => _changed.Contains(propertyName);
        /// <summary>Whether any properties changed in the most recent update.</summary>
        public bool Any => _changed.Count > 0;
        /// <summary>The full set of property names that changed.</summary>
        public IReadOnlySet<string> Entries => _changed;
    }
}