using Cryville.Common.Pdt;
using Cryville.Crtr.Browsing;
using Newtonsoft.Json;
using System.Collections.Generic;
using System.IO;
using System.Text;

namespace Cryville.Crtr {
	public class Skin : MetaInfo {
		public const long CURRENT_FORMAT = 2;

		[JsonRequired]
		public long format;

		public string @base;

		[JsonRequired]
		public string ruleset;

		public List<string> frames = new List<string>();

		[JsonIgnore]
		public PdtSkin Root { get; private set; }

		public void LoadPdt(DirectoryInfo dir) {
			using (StreamReader pdtreader = new StreamReader(dir.FullName + "/" + data + ".pdt", Encoding.UTF8)) {
				var src = pdtreader.ReadToEnd();
				Root = (PdtSkin)new SkinInterpreter(src, null).Interpret();
			}
		}
	}

	public class PdtSkin : SkinElement { }

	public class SkinElement {
		[ElementList]
		public Dictionary<SkinSelectors, SkinElement> elements
			= new Dictionary<SkinSelectors, SkinElement>();

		[PropertyList]
		public Dictionary<SkinPropertyKey, PdtExpression> properties
			= new Dictionary<SkinPropertyKey, PdtExpression>();

		public bool IsDynamic {
			get;
			private set;
		}

		public void Optimize(PdtEvaluatorBase etor) {
			IsDynamic = true;
			foreach (var e in properties.Values) {
				etor.Optimize(e);
				if (!e.IsConstant)
					IsDynamic = true;
			}
			foreach (var e in elements) {
				e.Key.Optimize(etor);
				e.Value.Optimize(etor);
				if (e.Value.IsDynamic)
					IsDynamic = true;
			}
		}
	}
}