using System.Collections.Generic;
using System.Linq;

namespace IRCRobots
{
    public class Capability : ICapability
    {
        public string Name { get; set; }
        public string DraftName { get; set; }
        public string Alias { get; }
        public IEnumerable<string> DependsOn { get; set; }
        private IEnumerable<string> Caps { get; }

        public Capability()
        {
            Alias ??= Name;
            Caps  =   new List<string> {Name, DraftName};
        }
        
        public string? Available(IEnumerable<string> capabilities)
        {
            return Caps.FirstOrDefault(cap => cap != null && capabilities.Contains(cap));
        }

        public bool Match(string capability)
        {
            return Caps.Contains(capability);
        }
    }
}