using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace GameOfLife.IO
{
    public class RlePatternMetaData : PatternMetadata
    {
        public RlePatternMetaData(string line, IEnumerable<string> comments)
        {
            Comments = comments.ToArray();

            var mdLine = Regex.Replace(line, @"\s+", "");
            var props = mdLine.Split(',');
            if (props.Length < 2)
                throw new ArgumentException("Line does not contain two properties");

            var mp = new Regex(@"(\w+)=(.*)");
            foreach (var prop in props)
            {
                var capture = mp.Match(prop).Groups;
                var name = capture[1].Value;
                var val = capture[2].Value;
                switch (name)
                {
                    case "x":
                        Width = int.Parse(val);
                        break;
                    case "y":
                        Height = int.Parse(val);
                        break;
                    // TODO: decode the rules
                    case "rules":
                        Rules = val;
                        break;
                }
            }
        }
    }
}